From 6aec51d58379e5ba4c237d6443b3dc0a637af3e0 Mon Sep 17 00:00:00 2001
From: Tim Herman <tim@belg.be>
Date: Sat, 16 Aug 2014 02:11:13 +0200
Subject: [PATCH 01/61] Temp Stylesheet untill MVC model is applied. The best I
 can do in a short timespan without touching the php files

---
 style/example.css   | 195 +++++++-------------
 style/normalize.css | 425 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 487 insertions(+), 133 deletions(-)
 mode change 100644 => 100755 style/example.css
 create mode 100755 style/normalize.css

diff --git a/style/example.css b/style/example.css
old mode 100644
new mode 100755
index 5465e4a35..f5c02fef2
--- a/style/example.css
+++ b/style/example.css
@@ -1,174 +1,103 @@
-/* sample style sheet file for Poweradmin */
+/*
+ * Author: Tim Herman
+ * Website: http://www.punk.be
+ * Comments: Based on the normalize.css design. The best I could do without touching the php files. Temp solution untill an MVC model is applied
 
-body {
-    padding-left:	5%;
-    padding-right:	5%;
-    font-family:	Verdana, Arial, Helvetica, serif;
-    font-size:		85%;
-    text-align:		left;
-    vertical-align:	top;
-    background:		#f4f4f4;
-}
-
-h1, h2, table, .menu, .footer {
-    border:			1px solid #000000;
-    padding:		3px;
-    background:		#ddeeff;
-}
-
-p {
-    padding:		3px;
-}
-
-table {
-    width:			100%;
-    font-family:	Verdana, Arial, Helvetica, serif;
-    font-size:		90%;
-    text-align:		left;
-    vertical-align:	top;
-}
-
-img {
-    border:			0;
-}
-
-#meta {
-    width:			100%;
-    clear:			both;
-}
-
-#meta .button {
-    margin:			0 5px 0 0;
-}
+/* RESET */
+@import url("../style/normalize.css");
 
-td {
-    padding:		0 2px 0 2px;
-    vertical-align:	top;
+/* BEGIN ACTUAL STYLESHEET */
+body {
+	background: #F7F7F7;
 }
 
-td.actions {
+* {
+	color: #333333;
 }
 
-td.name {
-    background:		#ffffff;
-    border:			1px solid #000000;
+a {
+	text-decoration: none;
+	color: #069;
 }
 
-td.type {
-    background:		#ffffff;
-    border:			1px solid #000000;
+a:hover {
+	text-decoration: underline;
 }
 
-td.count {
-    background:		#ffffff;
-    border:			1px solid #000000;
+p, div, table tr, table tr td, table tr th, strong, li, b, input, textarea {
+	font-size: 0.9em;
 }
 
-td.owner {
-    background:		#ffffff;
-    border:			1px solid #000000;
+/*HEADERS*/
+h1 {
+	font-size: 2.375em;
+	color: #69A619;
+	text-transform: lowercase;
+	text-shadow: 1px 1px 0 #304d08;
+	text-decoration: none;
 }
 
-td.cell {
-    background:		#ffffff;
-    border:			1px solid #000000;
+h1, .menu {
+	margin: 10px auto;
+	width: 980px;
 }
 
-td.dnssec {
-    width: 50px;
+h2, h3 {
+	font-size: 1.17em;
 }
 
-td.checkbox {
+.content, .footer {
+	margin: 10px auto;
+	width: 940px;
 }
 
+/*NAVIGATION*/
 .menu {
-    font-size:		80%;
-}
-
-.error {
-    background:		#ff0000;
-    color:			#ffffff;
-    padding:		3px;
-    font-size:		90%;
-}
-
-.success {
-    background:		#00cc33;
-    padding:		3px;
-    font-size:		90%;
-}
-
-.showmax {
-    font-size:		80%;
-    margin:			5px 0 5px 0;
-    text-align:		center;
-}
-
-.showmax  a {
-    text-decoration:	none;
-}
-
-.showmax a:hover {
-    background-color:	#ddeeff;
-}
-
-.lettertaken {
-    color:			#000000;
-    font-weight:	bold;
-    background-color:   #ddeeff;
 }
 
-a:link { 
-    color:			#000000;
+.menuitem {
+	padding-right: 5px;
+	font-size: 0.8em;
+	font-weight: bold;
 }
 
-a:visited { 
-    color:			#000000;
+/*CONTENT*/
+.content {
+	padding: 20px 20px;
+	border: 1px solid #ccc;
+	background: #fff;
 }
 
-a:active { 
-    color:			#000000;
-}
-
-a:hover	{
-    text-decoration:	none;
-}
-
-.footer	{
-    font-size:		70%;
-    margin-top:		5px;
+table {
+    border-collapse: collapse;
 }
 
-.sbutton {
-    border:			#999999 1px solid;
+table tr th {
+	text-align: left;
+	padding-right: 10px;
+	font-weight: normal;
 }
 
-.button {
-    border:			#999999 1px solid;
-}
-.input {
-    border:			#999999 1px solid;
-}
-.sinput {
-    border: 		#999999 1px solid;
+table tr td {
+	padding: 3px;
 }
 
-textarea {
-    width:			100%;
+.success, .error {
+	padding: 10px;
+	font-weight: bold;
 }
 
-input.wide {
-    width:			100%;
-}
 
-.letternotavailable { 
-    color:			#CCCCCC;
+.success {
+	border: 1px solid green;
+	color: green;
 }
 
-td.checkbox {
-    width:			5px;
+.error {
+	border: 1px solid red;
+	color: red;
 }
 
-.normaltext {
-    font-size:		80%;
+.footer {
+	font-size: 0.6em;
 }
diff --git a/style/normalize.css b/style/normalize.css
new file mode 100755
index 000000000..08f895079
--- /dev/null
+++ b/style/normalize.css
@@ -0,0 +1,425 @@
+/*! normalize.css v3.0.1 | MIT License | git.io/normalize */
+
+/**
+ * 1. Set default font family to sans-serif.
+ * 2. Prevent iOS text size adjust after orientation change, without disabling
+ *    user zoom.
+ */
+
+html {
+  font-family: sans-serif; /* 1 */
+  -ms-text-size-adjust: 100%; /* 2 */
+  -webkit-text-size-adjust: 100%; /* 2 */
+}
+
+/**
+ * Remove default margin.
+ */
+
+body {
+  margin: 0;
+}
+
+/* HTML5 display definitions
+   ========================================================================== */
+
+/**
+ * Correct `block` display not defined for any HTML5 element in IE 8/9.
+ * Correct `block` display not defined for `details` or `summary` in IE 10/11 and Firefox.
+ * Correct `block` display not defined for `main` in IE 11.
+ */
+
+article,
+aside,
+details,
+figcaption,
+figure,
+footer,
+header,
+hgroup,
+main,
+nav,
+section,
+summary {
+  display: block;
+}
+
+/**
+ * 1. Correct `inline-block` display not defined in IE 8/9.
+ * 2. Normalize vertical alignment of `progress` in Chrome, Firefox, and Opera.
+ */
+
+audio,
+canvas,
+progress,
+video {
+  display: inline-block; /* 1 */
+  vertical-align: baseline; /* 2 */
+}
+
+/**
+ * Prevent modern browsers from displaying `audio` without controls.
+ * Remove excess height in iOS 5 devices.
+ */
+
+audio:not([controls]) {
+  display: none;
+  height: 0;
+}
+
+/**
+ * Address `[hidden]` styling not present in IE 8/9/10.
+ * Hide the `template` element in IE 8/9/11, Safari, and Firefox < 22.
+ */
+
+[hidden],
+template {
+  display: none;
+}
+
+/* Links
+   ========================================================================== */
+
+/**
+ * Remove the gray background color from active links in IE 10.
+ */
+
+a {
+  background: transparent;
+}
+
+/**
+ * Improve readability when focused and also mouse hovered in all browsers.
+ */
+
+a:active,
+a:hover {
+  outline: 0;
+}
+
+/* Text-level semantics
+   ========================================================================== */
+
+/**
+ * Address styling not present in IE 8/9/10/11, Safari, and Chrome.
+ */
+
+abbr[title] {
+  border-bottom: 1px dotted;
+}
+
+/**
+ * Address style set to `bolder` in Firefox 4+, Safari, and Chrome.
+ */
+
+b,
+strong {
+  font-weight: bold;
+}
+
+/**
+ * Address styling not present in Safari and Chrome.
+ */
+
+dfn {
+  font-style: italic;
+}
+
+/**
+ * Address variable `h1` font-size and margin within `section` and `article`
+ * contexts in Firefox 4+, Safari, and Chrome.
+ */
+
+h1 {
+  font-size: 2em;
+  margin: 0.67em 0;
+}
+
+/**
+ * Address styling not present in IE 8/9.
+ */
+
+mark {
+  background: #ff0;
+  color: #000;
+}
+
+/**
+ * Address inconsistent and variable font size in all browsers.
+ */
+
+small {
+  font-size: 80%;
+}
+
+/**
+ * Prevent `sub` and `sup` affecting `line-height` in all browsers.
+ */
+
+sub,
+sup {
+  font-size: 75%;
+  line-height: 0;
+  position: relative;
+  vertical-align: baseline;
+}
+
+sup {
+  top: -0.5em;
+}
+
+sub {
+  bottom: -0.25em;
+}
+
+/* Embedded content
+   ========================================================================== */
+
+/**
+ * Remove border when inside `a` element in IE 8/9/10.
+ */
+
+img {
+  border: 0;
+}
+
+/**
+ * Correct overflow not hidden in IE 9/10/11.
+ */
+
+svg:not(:root) {
+  overflow: hidden;
+}
+
+/* Grouping content
+   ========================================================================== */
+
+/**
+ * Address margin not present in IE 8/9 and Safari.
+ */
+
+figure {
+  margin: 1em 40px;
+}
+
+/**
+ * Address differences between Firefox and other browsers.
+ */
+
+hr {
+  -moz-box-sizing: content-box;
+  box-sizing: content-box;
+  height: 0;
+}
+
+/**
+ * Contain overflow in all browsers.
+ */
+
+pre {
+  overflow: auto;
+}
+
+/**
+ * Address odd `em`-unit font size rendering in all browsers.
+ */
+
+code,
+kbd,
+pre,
+samp {
+  font-family: monospace, monospace;
+  font-size: 1em;
+}
+
+/* Forms
+   ========================================================================== */
+
+/**
+ * Known limitation: by default, Chrome and Safari on OS X allow very limited
+ * styling of `select`, unless a `border` property is set.
+ */
+
+/**
+ * 1. Correct color not being inherited.
+ *    Known issue: affects color of disabled elements.
+ * 2. Correct font properties not being inherited.
+ * 3. Address margins set differently in Firefox 4+, Safari, and Chrome.
+ */
+
+button,
+input,
+optgroup,
+select,
+textarea {
+  color: inherit; /* 1 */
+  font: inherit; /* 2 */
+  margin: 0; /* 3 */
+}
+
+/**
+ * Address `overflow` set to `hidden` in IE 8/9/10/11.
+ */
+
+button {
+  overflow: visible;
+}
+
+/**
+ * Address inconsistent `text-transform` inheritance for `button` and `select`.
+ * All other form control elements do not inherit `text-transform` values.
+ * Correct `button` style inheritance in Firefox, IE 8/9/10/11, and Opera.
+ * Correct `select` style inheritance in Firefox.
+ */
+
+button,
+select {
+  text-transform: none;
+}
+
+/**
+ * 1. Avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio`
+ *    and `video` controls.
+ * 2. Correct inability to style clickable `input` types in iOS.
+ * 3. Improve usability and consistency of cursor style between image-type
+ *    `input` and others.
+ */
+
+button,
+html input[type="button"], /* 1 */
+input[type="reset"],
+input[type="submit"] {
+  -webkit-appearance: button; /* 2 */
+  cursor: pointer; /* 3 */
+}
+
+/**
+ * Re-set default cursor for disabled elements.
+ */
+
+button[disabled],
+html input[disabled] {
+  cursor: default;
+}
+
+/**
+ * Remove inner padding and border in Firefox 4+.
+ */
+
+button::-moz-focus-inner,
+input::-moz-focus-inner {
+  border: 0;
+  padding: 0;
+}
+
+/**
+ * Address Firefox 4+ setting `line-height` on `input` using `!important` in
+ * the UA stylesheet.
+ */
+
+input {
+  line-height: normal;
+}
+
+/**
+ * It's recommended that you don't attempt to style these elements.
+ * Firefox's implementation doesn't respect box-sizing, padding, or width.
+ *
+ * 1. Address box sizing set to `content-box` in IE 8/9/10.
+ * 2. Remove excess padding in IE 8/9/10.
+ */
+
+input[type="checkbox"],
+input[type="radio"] {
+  box-sizing: border-box; /* 1 */
+  padding: 0; /* 2 */
+}
+
+/**
+ * Fix the cursor style for Chrome's increment/decrement buttons. For certain
+ * `font-size` values of the `input`, it causes the cursor style of the
+ * decrement button to change from `default` to `text`.
+ */
+
+input[type="number"]::-webkit-inner-spin-button,
+input[type="number"]::-webkit-outer-spin-button {
+  height: auto;
+}
+
+/**
+ * 1. Address `appearance` set to `searchfield` in Safari and Chrome.
+ * 2. Address `box-sizing` set to `border-box` in Safari and Chrome
+ *    (include `-moz` to future-proof).
+ */
+
+input[type="search"] {
+  -webkit-appearance: textfield; /* 1 */
+  -moz-box-sizing: content-box;
+  -webkit-box-sizing: content-box; /* 2 */
+  box-sizing: content-box;
+}
+
+/**
+ * Remove inner padding and search cancel button in Safari and Chrome on OS X.
+ * Safari (but not Chrome) clips the cancel button when the search input has
+ * padding (and `textfield` appearance).
+ */
+
+input[type="search"]::-webkit-search-cancel-button,
+input[type="search"]::-webkit-search-decoration {
+  -webkit-appearance: none;
+}
+
+/**
+ * Define consistent border, margin, and padding.
+ */
+
+fieldset {
+  border: 1px solid #c0c0c0;
+  margin: 0 2px;
+  padding: 0.35em 0.625em 0.75em;
+}
+
+/**
+ * 1. Correct `color` not being inherited in IE 8/9/10/11.
+ * 2. Remove padding so people aren't caught out if they zero out fieldsets.
+ */
+
+legend {
+  border: 0; /* 1 */
+  padding: 0; /* 2 */
+}
+
+/**
+ * Remove default vertical scrollbar in IE 8/9/10/11.
+ */
+
+textarea {
+  overflow: auto;
+}
+
+/**
+ * Don't inherit the `font-weight` (applied by a rule above).
+ * NOTE: the default cannot safely be changed in Chrome and Safari on OS X.
+ */
+
+optgroup {
+  font-weight: bold;
+}
+
+/* Tables
+   ========================================================================== */
+
+/**
+ * Remove most spacing between table cells.
+ */
+
+table {
+  border-collapse: collapse;
+  border-spacing: 0;
+}
+
+td,
+th {
+  padding: 0;
+}

From 9145026059d46577e8e58a278f9d319d1c314406 Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <eg@fbsd.lt>
Date: Sun, 7 Sep 2014 09:38:36 +0300
Subject: [PATCH 02/61] Fixes #201 - removed rendundant comma in postgresql
 migration file.

---
 sql/poweradmin-pgsql-update-to-2.1.7.sql | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sql/poweradmin-pgsql-update-to-2.1.7.sql b/sql/poweradmin-pgsql-update-to-2.1.7.sql
index 30dbb34cc..e40ee4142 100644
--- a/sql/poweradmin-pgsql-update-to-2.1.7.sql
+++ b/sql/poweradmin-pgsql-update-to-2.1.7.sql
@@ -8,5 +8,5 @@ CREATE TABLE records_zone_templ (
 
 CREATE TABLE migrations (
     version varchar(255) NOT NULL,
-    apply_time integer NOT NULL,
+    apply_time integer NOT NULL
 );

From 0f6450f8a86d64edef8fab8d5bcbe7ddc88c21c1 Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <eg@fbsd.lt>
Date: Sun, 7 Sep 2014 09:50:52 +0300
Subject: [PATCH 03/61] Updated valid tlds.

---
 inc/toolkit.inc.php | 136 ++++++++++++++++++++++++++------------------
 1 file changed, 82 insertions(+), 54 deletions(-)

diff --git a/inc/toolkit.inc.php b/inc/toolkit.inc.php
index 774a6eeb6..17ba02953 100644
--- a/inc/toolkit.inc.php
+++ b/inc/toolkit.inc.php
@@ -28,7 +28,6 @@
  * @copyright   2010-2014 Poweradmin Development Team
  * @license     http://opensource.org/licenses/GPL-3.0 GPL
  */
-
 // TODO: display elapsed time and memory consumption,
 // used to check improvements in refactored version
 $display_stats = false;
@@ -109,62 +108,91 @@
     define('RECORD_SORT_BY', "name");
 }
 
-$valid_tlds = array("ac", "academy", "actor", "ad", "ae", "aero", "af", "ag",
-    "agency", "ai", "al", "am", "an", "ao", "aq", "ar", "arpa", "as", "asia",
-    "at", "au", "aw", "ax", "az", "ba", "bar", "bargains", "bb", "bd", "be",
-    "berlin", "best", "bf", "bg", "bh", "bi", "bid", "bike", "biz", "bj", "blue",
-    "bm", "bn", "bo", "boutique", "br", "bs", "bt", "build", "builders", "buzz",
-    "bv", "bw", "by", "bz", "ca", "cab", "camera", "camp", "cards", "careers",
-    "cat", "catering", "cc", "cd", "center", "ceo", "cf", "cg", "ch", "cheap",
-    "christmas", "ci", "ck", "cl", "cleaning", "clothing", "club", "cm", "cn",
-    "co", "codes", "coffee", "com", "community", "company", "computer", "condos",
-    "construction", "contractors", "cool", "coop", "cr", "cruises", "cu", "cv",
-    "cw", "cx", "cy", "cz", "dance", "dating", "de", "democrat", "diamonds",
-    "directory", "dj", "dk", "dm", "do", "domains", "dz", "ec", "edu",
-    "education", "ee", "eg", "email", "enterprises", "equipment", "er", "es",
-    "estate", "et", "eu", "events", "expert", "exposed", "farm", "fi", "fish",
-    "fj", "fk", "flights", "florist", "fm", "fo", "foundation", "fr", "futbol",
-    "ga", "gallery", "gb", "gd", "ge", "gf", "gg", "gh", "gi", "gift", "gl",
-    "glass", "gm", "gn", "gov", "gp", "gq", "gr", "graphics", "gs", "gt", "gu",
-    "guitars", "guru", "gw", "gy", "hk", "hm", "hn", "holdings", "holiday",
-    "house", "hr", "ht", "hu", "id", "ie", "il", "im", "immobilien", "in",
-    "industries", "info", "institute", "int", "international", "io", "iq", "ir",
-    "is", "it", "je", "jm", "jo", "jobs", "jp", "kaufen", "ke", "kg", "kh", "ki",
-    "kim", "kitchen", "kiwi", "km", "kn", "koeln", "kp", "kr", "kred", "kw", "ky",
-    "kz", "la", "land", "lb", "lc", "li", "lighting", "limo", "link", "lk", "lr",
-    "ls", "lt", "lu", "luxury", "lv", "ly", "ma", "maison", "management", "mango",
-    "marketing", "mc", "md", "me", "media", "menu", "mg", "mh", "mil", "mk", "ml",
-    "mm", "mn", "mo", "mobi", "moda", "monash", "mp", "mq", "mr", "ms", "mt", "mu",
-    "museum", "mv", "mw", "mx", "my", "mz", "na", "nagoya", "name", "nc", "ne",
-    "net", "neustar", "nf", "ng", "ni", "ninja", "nl", "no", "np", "nr", "nu",
-    "nz", "okinawa", "om", "onl", "org", "pa", "partners", "parts", "pe", "pf",
-    "pg", "ph", "photo", "photography", "photos", "pics", "pink", "pk", "pl",
-    "plumbing", "pm", "pn", "post", "pr", "pro", "productions", "properties",
-    "ps", "pt", "pub", "pw", "py", "qa", "qpon", "re", "recipes", "red",
-    "rentals", "repair", "report", "reviews", "rich", "ro", "rs", "ru", "ruhr",
-    "rw", "sa", "sb", "sc", "sd", "se", "sexy", "sg", "sh", "shiksha", "shoes",
-    "si", "singles", "sj", "sk", "sl", "sm", "sn", "so", "social", "solar",
-    "solutions", "sr", "st", "su", "supplies", "supply", "support", "sv", "sx",
-    "sy", "systems", "sz", "tattoo", "tc", "td", "technology", "tel", "tf", "tg",
-    "th", "tienda", "tips", "tj", "tk", "tl", "tm", "tn", "to", "today", "tokyo",
-    "tools", "tp", "tr", "training", "travel", "tt", "tv", "tw", "tz", "ua", "ug",
-    "uk", "uno", "us", "uy", "uz", "va", "vacations", "vc", "ve", "ventures",
-    "vg", "vi", "viajes", "villas", "vision", "vn", "vote", "voting", "voto",
-    "voyage", "vu", "wang", "watch", "wed", "wf", "wien", "wiki", "works", "ws",
-    "xn--3bst00m", "xn--3ds443g", "xn--3e0b707e", "xn--45brj9c", "xn--55qw42g",
-    "xn--55qx5d", "xn--6frz82g", "xn--6qq986b3xl", "xn--80ao21a", "xn--80asehdb",
-    "xn--80aswg", "xn--90a3ac", "xn--c1avg", "xn--cg4bki",
-    "xn--clchc0ea0b2g2a9gcd", "xn--d1acj3b", "xn--fiq228c5hs", "xn--fiq64b",
-    "xn--fiqs8s", "xn--fiqz9s", "xn--fpcrj9c3d", "xn--fzc2c9e2c", "xn--gecrj9c",
-    "xn--h2brj9c", "xn--i1b6b1a6a2e", "xn--io0a7i", "xn--j1amh", "xn--j6w193g",
-    "xn--kprw13d", "xn--kpry57d", "xn--l1acc", "xn--lgbbat1ad8j", "xn--mgb9awbf",
+$valid_tlds = array("ac", "academy", "accountants", "active", "actor", "ad",
+    "ae", "aero", "af", "ag", "agency", "ai", "airforce", "al", "am", "an", "ao",
+    "aq", "ar", "archi", "army", "arpa", "as", "asia", "associates", "at",
+    "attorney", "au", "auction", "audio", "autos", "aw", "ax", "axa", "az", "ba",
+    "bar", "bargains", "bayern", "bb", "bd", "be", "beer", "berlin", "best", "bf",
+    "bg", "bh", "bi", "bid", "bike", "bio", "biz", "bj", "black", "blackfriday",
+    "blue", "bm", "bmw", "bn", "bnpparibas", "bo", "boo", "boutique", "br",
+    "brussels", "bs", "bt", "build", "builders", "business", "buzz", "bv", "bw",
+    "by", "bz", "bzh", "ca", "cab", "camera", "camp", "cancerresearch",
+    "capetown", "capital", "caravan", "cards", "care", "career", "careers",
+    "cash", "cat", "catering", "cc", "cd", "center", "ceo", "cern", "cf", "cg",
+    "ch", "cheap", "christmas", "church", "ci", "citic", "city", "ck", "cl",
+    "claims", "cleaning", "click", "clinic", "clothing", "club", "cm", "cn", "co",
+    "codes", "coffee", "college", "cologne", "com", "community", "company",
+    "computer", "condos", "construction", "consulting", "contractors", "cooking",
+    "cool", "coop", "country", "cr", "credit", "creditcard", "cruises", "cu",
+    "cuisinella", "cv", "cw", "cx", "cy", "cymru", "cz", "dad", "dance", "dating",
+    "day", "de", "deals", "degree", "democrat", "dental", "dentist", "desi",
+    "diamonds", "diet", "digital", "direct", "directory", "discount", "dj", "dk",
+    "dm", "dnp", "do", "domains", "durban", "dz", "eat", "ec", "edu", "education",
+    "ee", "eg", "email", "engineer", "engineering", "enterprises", "equipment",
+    "er", "es", "esq", "estate", "et", "eu", "eus", "events", "exchange",
+    "expert", "exposed", "fail", "farm", "feedback", "fi", "finance", "financial",
+    "fish", "fishing", "fitness", "fj", "fk", "flights", "florist", "fm", "fo",
+    "foo", "foundation", "fr", "frl", "frogans", "fund", "furniture", "futbol",
+    "ga", "gal", "gallery", "gb", "gbiz", "gd", "ge", "gent", "gf", "gg", "gh",
+    "gi", "gift", "gifts", "gives", "gl", "glass", "global", "globo", "gm",
+    "gmail", "gmo", "gmx", "gn", "gop", "gov", "gp", "gq", "gr", "graphics",
+    "gratis", "green", "gripe", "gs", "gt", "gu", "guide", "guitars", "guru",
+    "gw", "gy", "hamburg", "haus", "healthcare", "help", "here", "hiphop", "hiv",
+    "hk", "hm", "hn", "holdings", "holiday", "homes", "horse", "host", "hosting",
+    "house", "how", "hr", "ht", "hu", "id", "ie", "il", "im", "immo",
+    "immobilien", "in", "industries", "info", "ing", "ink", "institute", "insure",
+    "int", "international", "investments", "io", "iq", "ir", "is", "it", "je",
+    "jetzt", "jm", "jo", "jobs", "joburg", "jp", "juegos", "kaufen", "ke", "kg",
+    "kh", "ki", "kim", "kitchen", "kiwi", "km", "kn", "koeln", "kp", "kr", "krd",
+    "kred", "kw", "ky", "kz", "la", "lacaixa", "land", "lawyer", "lb", "lc",
+    "lease", "lgbt", "li", "life", "lighting", "limited", "limo", "link", "lk",
+    "loans", "london", "lotto", "lr", "ls", "lt", "ltda", "lu", "luxe", "luxury",
+    "lv", "ly", "ma", "maison", "management", "mango", "market", "marketing",
+    "mc", "md", "me", "media", "meet", "melbourne", "meme", "menu", "mg", "mh",
+    "miami", "mil", "mini", "mk", "ml", "mm", "mn", "mo", "mobi", "moda", "moe",
+    "monash", "mortgage", "moscow", "motorcycles", "mov", "mp", "mq", "mr", "ms",
+    "mt", "mu", "museum", "mv", "mw", "mx", "my", "mz", "na", "nagoya", "name",
+    "navy", "nc", "ne", "net", "network", "neustar", "new", "nf", "ng", "ngo",
+    "nhk", "ni", "ninja", "nl", "no", "np", "nr", "nra", "nrw", "nu", "nyc", "nz",
+    "okinawa", "om", "ong", "onl", "ooo", "org", "organic", "otsuka", "ovh", "pa",
+    "paris", "partners", "parts", "pe", "pf", "pg", "ph", "pharmacy", "photo",
+    "photography", "photos", "physio", "pics", "pictures", "pink", "pizza", "pk",
+    "pl", "place", "plumbing", "pm", "pn", "post", "pr", "praxi", "press", "pro",
+    "prod", "productions", "properties", "property", "ps", "pt", "pub", "pw",
+    "py", "qa", "qpon", "quebec", "re", "realtor", "recipes", "red", "rehab",
+    "reise", "reisen", "ren", "rentals", "repair", "report", "republican", "rest",
+    "restaurant", "reviews", "rich", "rio", "ro", "rocks", "rodeo", "rs", "rsvp",
+    "ru", "ruhr", "rw", "ryukyu", "sa", "saarland", "sarl", "sb", "sc", "sca",
+    "scb", "schmidt", "schule", "scot", "sd", "se", "services", "sexy", "sg",
+    "sh", "shiksha", "shoes", "si", "singles", "sj", "sk", "sl", "sm", "sn", "so",
+    "social", "software", "sohu", "solar", "solutions", "soy", "space", "spiegel",
+    "sr", "st", "su", "supplies", "supply", "support", "surf", "surgery",
+    "suzuki", "sv", "sx", "sy", "systems", "sz", "tatar", "tattoo", "tax", "tc",
+    "td", "technology", "tel", "tf", "tg", "th", "tienda", "tips", "tirol", "tj",
+    "tk", "tl", "tm", "tn", "to", "today", "tokyo", "tools", "top", "town",
+    "toys", "tp", "tr", "trade", "training", "travel", "tt", "tv", "tw", "tz",
+    "ua", "ug", "uk", "university", "uno", "uol", "us", "uy", "uz", "va",
+    "vacations", "vc", "ve", "vegas", "ventures", "versicherung", "vet", "vg",
+    "vi", "viajes", "villas", "vision", "vlaanderen", "vn", "vodka", "vote",
+    "voting", "voto", "voyage", "vu", "wales", "wang", "watch", "webcam",
+    "website", "wed", "wf", "whoswho", "wien", "wiki", "williamhill", "works",
+    "ws", "wtc", "wtf", "xn--1qqw23a", "xn--3bst00m", "xn--3ds443g",
+    "xn--3e0b707e", "xn--45brj9c", "xn--4gbrim", "xn--55qw42g", "xn--55qx5d",
+    "xn--6frz82g", "xn--6qq986b3xl", "xn--80adxhks", "xn--80ao21a",
+    "xn--80asehdb", "xn--80aswg", "xn--90a3ac", "xn--c1avg", "xn--cg4bki",
+    "xn--clchc0ea0b2g2a9gcd", "xn--czr694b", "xn--czru2d", "xn--d1acj3b",
+    "xn--fiq228c5hs", "xn--fiq64b", "xn--fiqs8s", "xn--fiqz9s", "xn--fpcrj9c3d",
+    "xn--fzc2c9e2c", "xn--gecrj9c", "xn--h2brj9c", "xn--i1b6b1a6a2e",
+    "xn--io0a7i", "xn--j1amh", "xn--j6w193g", "xn--kprw13d", "xn--kpry57d",
+    "xn--kput3i", "xn--l1acc", "xn--lgbbat1ad8j", "xn--mgb9awbf",
     "xn--mgba3a4f16a", "xn--mgbaam7a8h", "xn--mgbab2bd", "xn--mgbayh7gpa",
     "xn--mgbbh1a71e", "xn--mgbc0a9azcg", "xn--mgberp4a5d4ar", "xn--mgbx4cd0ab",
     "xn--ngbc5azd", "xn--nqv7f", "xn--nqv7fs00ema", "xn--o3cw4h", "xn--ogbpf8fl",
-    "xn--p1ai", "xn--pgbs0dh", "xn--q9jyb4c", "xn--s9brj9c", "xn--unup4y",
-    "xn--wgbh1c", "xn--wgbl6a", "xn--xkc2al3hye2a", "xn--xkc2dl3a5ee0h",
-    "xn--yfro4i67o", "xn--ygbi2ammx", "xn--zfr164b", "xxx", "xyz", "ye", "yt",
-    "za", "zm", "zone", "zw");
+    "xn--p1ai", "xn--pgbs0dh", "xn--q9jyb4c", "xn--rhqv96g", "xn--s9brj9c",
+    "xn--ses554g", "xn--unup4y", "xn--vhquv", "xn--wgbh1c", "xn--wgbl6a",
+    "xn--xhq521b", "xn--xkc2al3hye2a", "xn--xkc2dl3a5ee0h", "xn--yfro4i67o",
+    "xn--ygbi2ammx", "xn--zfr164b", "xxx", "xyz", "yachts", "yandex", "ye",
+    "yokohama", "youtube", "yt", "za", "zm", "zone", "zw");
 
 // Special TLDs for testing and documentation purposes
 // http://tools.ietf.org/html/rfc2606#section-2

From 4aff8b6b810d2bc6d8f5c8a927d22a491f2d2453 Mon Sep 17 00:00:00 2001
From: Jan van Haarst <jan@vanhaarst.net>
Date: Mon, 15 Sep 2014 23:44:39 +0200
Subject: [PATCH 04/61] Added support for IPv6.

This needs PHP 5 >= 5.2.0, because of filter_var.
---
 dynamic_update.php | 26 +++++++++++++++++++++++---
 1 file changed, 23 insertions(+), 3 deletions(-)

diff --git a/dynamic_update.php b/dynamic_update.php
index 4bfcb63ee..6a355ecf4 100644
--- a/dynamic_update.php
+++ b/dynamic_update.php
@@ -84,6 +84,24 @@ function status_exit($status) {
     return false;
 }
 
+/** Check whether the given address is an IP address
+ *
+ * @param string $ip Given IP address
+ *
+ * @return string A if IPv4, AAAA if IPv6 or 0 if invalid
+ */
+function valid_ip_address( $ip )
+{
+    if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) {
+        $value = 'A';
+    }elseif (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) {
+        $value = 'AAAA';
+    }else {
+        $value = 0;
+    }
+    return $value;
+}
+
 if (!(isset($_SERVER)) && !$_SERVER['HTTP_USER_AGENT']) {
     return status_exit('badagent');
 }
@@ -128,8 +146,10 @@ function status_exit($status) {
 // Finally get save version of the IP
 $ip = safe($given_ip);
 // Check its ok...
-if (!preg_match('/^((?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/i', $ip)) {
+if (!valid_ip_address($ip)) {
     return status_exit('dnserr');
+}else {
+    $type = valid_ip_address($ip);
 }
 
 if (!strlen($hostname)) {
@@ -163,12 +183,12 @@ function status_exit($status) {
 $was_updated = false;
 
 while ($zone = $zones_result->fetchRow()) {
-    $name_query = "SELECT name FROM records WHERE domain_id='{$zone["domain_id"]}' and type = 'A'";
+    $name_query = "SELECT name FROM records WHERE domain_id='{$zone["domain_id"]}' and type = '$type'";
     $result = $db->query($name_query);
 
     while ($record = $result->fetchRow()) {
         if ($hostname == $record['name']) {
-            $update_query = "UPDATE records SET content ='{$ip}' where name='{$record["name"]}' and type='A'";
+            $update_query = "UPDATE records SET content ='{$ip}' where name='{$record["name"]}' and type='$type'";
             $update_result = $db->query($update_query);
             $was_updated = true;
         }

From 6e2520bf5b838d5a921af563e9e0a1e749f72cf0 Mon Sep 17 00:00:00 2001
From: Jan van Haarst <jan@vanhaarst.net>
Date: Wed, 17 Sep 2014 10:13:56 +0200
Subject: [PATCH 05/61] Remove PHP4 based checks, and move to filter_var.

PHP4 has been dead for a long time, we can safely use filter_var.
---
 inc/dns.inc.php | 79 ++++---------------------------------------------
 1 file changed, 5 insertions(+), 74 deletions(-)

diff --git a/inc/dns.inc.php b/inc/dns.inc.php
index 94a46c733..d5abaa27c 100644
--- a/inc/dns.inc.php
+++ b/inc/dns.inc.php
@@ -380,40 +380,11 @@ function is_valid_hostname_fqdn(&$hostname, $wildcard) {
  */
 function is_valid_ipv4($ipv4, $answer = true) {
 
-// 20080424/RZ: The current code may be replaced by the following if()
-// statement, but it will raise the required PHP version to ">= 5.2.0".
-// Not sure if we want that now.
-//
-//	if(filter_var($ipv4, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) === FALSE) {
-//		error(ERR_DNS_IPV4); return false;
-//	}
-
-    if (!preg_match("/^[0-9\.]{7,15}$/", $ipv4)) {
-        if ($answer) {
-            error(ERR_DNS_IPV4);
-        }
-        return false;
-    }
-
-    $quads = explode('.', $ipv4);
-    $numquads = count($quads);
-
-    if ($numquads != 4) {
-        if ($answer) {
-            error(ERR_DNS_IPV4);
-        }
-        return false;
-    }
 
-    for ($i = 0; $i < 4; $i++) {
-        if ($quads[$i] > 255) {
-            if ($answer) {
-                error(ERR_DNS_IPV4);
-            }
-            return false;
-        }
+    if(filter_var($ipv4, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) === FALSE) {
+        error(ERR_DNS_IPV4); return false;
     }
-
+    
     return true;
 }
 
@@ -427,49 +398,9 @@ function is_valid_ipv4($ipv4, $answer = true) {
  */
 function is_valid_ipv6($ipv6, $answer = true) {
 
-// 20080424/RZ: The current code may be replaced by the following if()
-// statement, but it will raise the required PHP version to ">= 5.2.0".
-// Not sure if we want that now.
-//
-//	if(filter_var($ipv6, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) === FALSE) {
-//		error(ERR_DNS_IPV6); return false;
-//	}
-
-    if (!preg_match("/^[0-9a-f]{0,4}:([0-9a-f]{0,4}:){0,6}[0-9a-f]{0,4}$/i", $ipv6)) {
-        if ($answer) {
-            error(ERR_DNS_IPV6);
-        }
-        return false;
-    }
-
-    $quads = explode(':', $ipv6);
-    $numquads = count($quads);
-
-    if ($numquads > 8 || $numquads < 3) {
-        if ($answer) {
-            error(ERR_DNS_IPV6);
-        }
-        return false;
-    }
-
-    $emptyquads = 0;
-    for ($i = 1; $i < $numquads - 1; $i++) {
-        if ($quads[$i] == "")
-            $emptyquads++;
-    }
 
-    if ($emptyquads > 1) {
-        if ($answer) {
-            error(ERR_DNS_IPV6);
-        }
-        return false;
-    }
-
-    if ($emptyquads == 0 && $numquads != 8) {
-        if ($answer) {
-            error(ERR_DNS_IPV6);
-        }
-        return false;
+    if(filter_var($ipv6, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) === FALSE) {
+        error(ERR_DNS_IPV6); return false;
     }
 
     return true;

From 633ea02faa82fdc882a4265d30b13ce77083c9f1 Mon Sep 17 00:00:00 2001
From: Keenan Tims <ktims@stargate.ca>
Date: Wed, 24 Sep 2014 17:16:37 -0700
Subject: [PATCH 06/61] Avoid querying for pdnssec ordering records at all Add
 "WHERE" filters for TYPE IS NULL to record queries Previous fix in Fix #194
 only hides them from display, which results in empty pages, incorrect
 pagination and random numbers of records per page. PowerAdmin shouldn't need
 to see these at all so filter them at SQL.

---
 inc/record.inc.php | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/inc/record.inc.php b/inc/record.inc.php
index 691c08331..eddbcaa47 100644
--- a/inc/record.inc.php
+++ b/inc/record.inc.php
@@ -70,7 +70,7 @@ function get_zone_id_from_record_id($rid) {
  */
 function count_zone_records($zone_id) {
     global $db;
-    $sqlq = "SELECT COUNT(id) FROM records WHERE domain_id = " . $db->quote($zone_id, 'integer');
+    $sqlq = "SELECT COUNT(id) FROM records WHERE domain_id = " . $db->quote($zone_id, 'integer') . " AND type IS NOT NULL";
     $record_count = $db->queryOne($sqlq);
     return $record_count;
 }
@@ -1268,7 +1268,7 @@ function get_zones($perm, $userid = 0, $letterstart = 'all', $rowstart = 0, $row
 			FROM domains
 			LEFT JOIN zones ON domains.id=zones.domain_id
 			LEFT JOIN (
-				SELECT COUNT(domain_id) AS count_records, domain_id FROM records GROUP BY domain_id
+				SELECT COUNT(domain_id) AS count_records, domain_id FROM records WHERE type IS NOT NULL GROUP BY domain_id
 			) Record_Count ON Record_Count.domain_id=domains.id
 			WHERE 1=1" . $sql_add . "
 			GROUP BY domains.name, domains.id, domains.type, Record_Count.count_records
@@ -1360,7 +1360,7 @@ function zone_count_for_uid($uid) {
 function get_record_from_id($id) {
     global $db;
     if (is_numeric($id)) {
-        $result = $db->queryRow("SELECT id, domain_id, name, type, content, ttl, prio, change_date FROM records WHERE id=" . $db->quote($id, 'integer'));
+        $result = $db->queryRow("SELECT id, domain_id, name, type, content, ttl, prio, change_date FROM records WHERE id=" . $db->quote($id, 'integer') . " AND type IS NOT NULL");
         if ($result) {
             if ($result["type"] == "" || $result["content"] == "") {
                 return -1;
@@ -1437,7 +1437,7 @@ function get_records_from_domain_id($id, $rowstart = 0, $rowamount = 999999, $so
             }
             $sql_sortby = ($sortby == 'name' ? $natural_sort : $sortby . ', ' . $natural_sort);
 
-            $result = $db->query("SELECT id FROM records WHERE domain_id=" . $db->quote($id, 'integer') . " ORDER BY " . $sql_sortby);
+            $result = $db->query("SELECT id FROM records WHERE domain_id=" . $db->quote($id, 'integer') . " AND type IS NOT NULL ORDER BY " . $sql_sortby);
             $ret = array();
             if ($result) {
                 $ret[] = array();

From f1821540f2b678db9cf4ec4471db2cfd77e0dae3 Mon Sep 17 00:00:00 2001
From: Bas van Schaik <git@traiectum.net>
Date: Tue, 30 Sep 2014 11:57:06 +0200
Subject: [PATCH 07/61] move set_timezone function to record.inc.php (that's
 the only place where it's being used at the moment) in preparation for an
 update to dynamic_update.php which will require set_timezone to be in an
 accessible place (where an active session is not available)

---
 inc/record.inc.php  | 19 +++++++++++++++++++
 inc/toolkit.inc.php | 17 -----------------
 2 files changed, 19 insertions(+), 17 deletions(-)

diff --git a/inc/record.inc.php b/inc/record.inc.php
index 691c08331..7b4f1b09b 100644
--- a/inc/record.inc.php
+++ b/inc/record.inc.php
@@ -2145,3 +2145,22 @@ function get_records_by_domain_id($db, $domain_id) {
     }
     return $records;
 }
+
+
+/** Set timezone (required for PHP5)
+ *
+ * Set timezone to configured tz or UTC it not set
+ *
+ * @return null
+ */
+function set_timezone() {
+    global $timezone;
+
+    if (function_exists('date_default_timezone_set')) {
+        if (isset($timezone)) {
+            date_default_timezone_set($timezone);
+        } else if (!ini_get('date.timezone')) {
+            date_default_timezone_set('UTC');
+        }
+    }
+}
diff --git a/inc/toolkit.inc.php b/inc/toolkit.inc.php
index 17ba02953..00b23c758 100644
--- a/inc/toolkit.inc.php
+++ b/inc/toolkit.inc.php
@@ -558,23 +558,6 @@ function debug_print($var) {
     echo "</pre>\n";
 }
 
-/** Set timezone (required for PHP5)
- *
- * Set timezone to configured tz or UTC it not set
- *
- * @return null
- */
-function set_timezone() {
-    global $timezone;
-
-    if (function_exists('date_default_timezone_set')) {
-        if (isset($timezone)) {
-            date_default_timezone_set($timezone);
-        } else if (!ini_get('date.timezone')) {
-            date_default_timezone_set('UTC');
-        }
-    }
-}
 
 /** Generate random salt for encryption
  *

From dae4d8bbf1611626469110a0ff8df8aca9cf5f62 Mon Sep 17 00:00:00 2001
From: Bas van Schaik <git@traiectum.net>
Date: Tue, 30 Sep 2014 11:59:48 +0200
Subject: [PATCH 08/61] call update_soa_serial after dynamic update of record.
 This will notify PowerDNS of the changes, which will in turn trigger a
 notification to (followed by AXFR from) slave nameservers

---
 dynamic_update.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dynamic_update.php b/dynamic_update.php
index 4bfcb63ee..ec35cc56b 100644
--- a/dynamic_update.php
+++ b/dynamic_update.php
@@ -32,6 +32,7 @@
  */
 require('inc/config.inc.php');
 require('inc/database.inc.php');
+require('inc/record.inc.php');
 
 $db = dbConnect();
 
@@ -170,6 +171,7 @@ function status_exit($status) {
         if ($hostname == $record['name']) {
             $update_query = "UPDATE records SET content ='{$ip}' where name='{$record["name"]}' and type='A'";
             $update_result = $db->query($update_query);
+            update_soa_serial($zone['domain_id']);
             $was_updated = true;
         }
     }

From 00530ea7156611998c4c4d9a2b4ff13d5330c077 Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <edmondas@poweradmin.org>
Date: Sat, 18 Oct 2014 10:32:56 +0300
Subject: [PATCH 09/61] Renamed new theme.

---
 style/{example.css => punk.css} | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename style/{example.css => punk.css} (100%)

diff --git a/style/example.css b/style/punk.css
similarity index 100%
rename from style/example.css
rename to style/punk.css

From 1a6d2f2c2419ada4436f318775330c6177201dff Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <edmondas@poweradmin.org>
Date: Sat, 18 Oct 2014 10:33:39 +0300
Subject: [PATCH 10/61] Restore original theme.

---
 style/example.css | 174 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 174 insertions(+)
 create mode 100644 style/example.css

diff --git a/style/example.css b/style/example.css
new file mode 100644
index 000000000..5465e4a35
--- /dev/null
+++ b/style/example.css
@@ -0,0 +1,174 @@
+/* sample style sheet file for Poweradmin */
+
+body {
+    padding-left:	5%;
+    padding-right:	5%;
+    font-family:	Verdana, Arial, Helvetica, serif;
+    font-size:		85%;
+    text-align:		left;
+    vertical-align:	top;
+    background:		#f4f4f4;
+}
+
+h1, h2, table, .menu, .footer {
+    border:			1px solid #000000;
+    padding:		3px;
+    background:		#ddeeff;
+}
+
+p {
+    padding:		3px;
+}
+
+table {
+    width:			100%;
+    font-family:	Verdana, Arial, Helvetica, serif;
+    font-size:		90%;
+    text-align:		left;
+    vertical-align:	top;
+}
+
+img {
+    border:			0;
+}
+
+#meta {
+    width:			100%;
+    clear:			both;
+}
+
+#meta .button {
+    margin:			0 5px 0 0;
+}
+
+td {
+    padding:		0 2px 0 2px;
+    vertical-align:	top;
+}
+
+td.actions {
+}
+
+td.name {
+    background:		#ffffff;
+    border:			1px solid #000000;
+}
+
+td.type {
+    background:		#ffffff;
+    border:			1px solid #000000;
+}
+
+td.count {
+    background:		#ffffff;
+    border:			1px solid #000000;
+}
+
+td.owner {
+    background:		#ffffff;
+    border:			1px solid #000000;
+}
+
+td.cell {
+    background:		#ffffff;
+    border:			1px solid #000000;
+}
+
+td.dnssec {
+    width: 50px;
+}
+
+td.checkbox {
+}
+
+.menu {
+    font-size:		80%;
+}
+
+.error {
+    background:		#ff0000;
+    color:			#ffffff;
+    padding:		3px;
+    font-size:		90%;
+}
+
+.success {
+    background:		#00cc33;
+    padding:		3px;
+    font-size:		90%;
+}
+
+.showmax {
+    font-size:		80%;
+    margin:			5px 0 5px 0;
+    text-align:		center;
+}
+
+.showmax  a {
+    text-decoration:	none;
+}
+
+.showmax a:hover {
+    background-color:	#ddeeff;
+}
+
+.lettertaken {
+    color:			#000000;
+    font-weight:	bold;
+    background-color:   #ddeeff;
+}
+
+a:link { 
+    color:			#000000;
+}
+
+a:visited { 
+    color:			#000000;
+}
+
+a:active { 
+    color:			#000000;
+}
+
+a:hover	{
+    text-decoration:	none;
+}
+
+.footer	{
+    font-size:		70%;
+    margin-top:		5px;
+}
+
+.sbutton {
+    border:			#999999 1px solid;
+}
+
+.button {
+    border:			#999999 1px solid;
+}
+.input {
+    border:			#999999 1px solid;
+}
+.sinput {
+    border: 		#999999 1px solid;
+}
+
+textarea {
+    width:			100%;
+}
+
+input.wide {
+    width:			100%;
+}
+
+.letternotavailable { 
+    color:			#CCCCCC;
+}
+
+td.checkbox {
+    width:			5px;
+}
+
+.normaltext {
+    font-size:		80%;
+}

From 862acf3a233d76f58ee83cbd7c1f79d0fad2843e Mon Sep 17 00:00:00 2001
From: Keenan Tims <ktims@stargate.ca>
Date: Fri, 24 Oct 2014 11:21:10 -0700
Subject: [PATCH 11/61] Perform rectify-zone after adding record

---
 add_record.php | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/add_record.php b/add_record.php
index f90dee9a1..35bc64da5 100644
--- a/add_record.php
+++ b/add_record.php
@@ -32,6 +32,8 @@
 require_once('inc/toolkit.inc.php');
 include_once('inc/header.inc.php');
 
+global $pdnssec_use;
+
 /*
   Get permissions
  */
@@ -141,6 +143,12 @@
                     log_info(sprintf('client_ip:%s user:%s operation:add_record record_type:PTR record:%s content:%s ttl:%s priority:%s',
                                       $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"],
                                       $content_rev, $fqdn_name, $ttl, $prio));
+		    if ($pdnssec_use) {
+			    if (dnssec_rectify_zone($zone_rev_id)) {
+				    success(SUC_EXEC_PDNSSEC_RECTIFY_ZONE);
+			    }
+		    }
+
                 }
             } elseif (isset($content_rev)) {
                 error(sprintf(ERR_REVERS_ZONE_NOT_EXIST, $content_rev));
@@ -151,6 +159,12 @@
             log_info(sprintf('client_ip:%s user:%s operation:add_record record_type:%s record:%s.%s content:%s ttl:%s priority:%s',
                               $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"],
                               $type, $name, $zone_name, $content, $ttl, $prio));
+	    if ($pdnssec_use) {
+		    if (dnssec_rectify_zone($zone_id)) {
+			    success(SUC_EXEC_PDNSSEC_RECTIFY_ZONE);
+		    }
+	    }
+
             $name = $type = $content = $ttl = $prio = "";
         }
     }

From f97da8a8ee683fbf05bdea624b874822d4123a10 Mon Sep 17 00:00:00 2001
From: Arsen Stasic <arsen.stasic@gmail.com>
Date: Sat, 25 Oct 2014 00:35:38 +0200
Subject: [PATCH 12/61] Updated valid TLDs

---
 inc/toolkit.inc.php | 175 +++++++++++++++++++++++---------------------
 1 file changed, 90 insertions(+), 85 deletions(-)

diff --git a/inc/toolkit.inc.php b/inc/toolkit.inc.php
index 17ba02953..1d1c7cfd6 100644
--- a/inc/toolkit.inc.php
+++ b/inc/toolkit.inc.php
@@ -108,91 +108,96 @@
     define('RECORD_SORT_BY', "name");
 }
 
-$valid_tlds = array("ac", "academy", "accountants", "active", "actor", "ad",
-    "ae", "aero", "af", "ag", "agency", "ai", "airforce", "al", "am", "an", "ao",
-    "aq", "ar", "archi", "army", "arpa", "as", "asia", "associates", "at",
-    "attorney", "au", "auction", "audio", "autos", "aw", "ax", "axa", "az", "ba",
-    "bar", "bargains", "bayern", "bb", "bd", "be", "beer", "berlin", "best", "bf",
-    "bg", "bh", "bi", "bid", "bike", "bio", "biz", "bj", "black", "blackfriday",
-    "blue", "bm", "bmw", "bn", "bnpparibas", "bo", "boo", "boutique", "br",
-    "brussels", "bs", "bt", "build", "builders", "business", "buzz", "bv", "bw",
-    "by", "bz", "bzh", "ca", "cab", "camera", "camp", "cancerresearch",
-    "capetown", "capital", "caravan", "cards", "care", "career", "careers",
-    "cash", "cat", "catering", "cc", "cd", "center", "ceo", "cern", "cf", "cg",
-    "ch", "cheap", "christmas", "church", "ci", "citic", "city", "ck", "cl",
-    "claims", "cleaning", "click", "clinic", "clothing", "club", "cm", "cn", "co",
-    "codes", "coffee", "college", "cologne", "com", "community", "company",
-    "computer", "condos", "construction", "consulting", "contractors", "cooking",
-    "cool", "coop", "country", "cr", "credit", "creditcard", "cruises", "cu",
-    "cuisinella", "cv", "cw", "cx", "cy", "cymru", "cz", "dad", "dance", "dating",
-    "day", "de", "deals", "degree", "democrat", "dental", "dentist", "desi",
-    "diamonds", "diet", "digital", "direct", "directory", "discount", "dj", "dk",
-    "dm", "dnp", "do", "domains", "durban", "dz", "eat", "ec", "edu", "education",
-    "ee", "eg", "email", "engineer", "engineering", "enterprises", "equipment",
-    "er", "es", "esq", "estate", "et", "eu", "eus", "events", "exchange",
-    "expert", "exposed", "fail", "farm", "feedback", "fi", "finance", "financial",
-    "fish", "fishing", "fitness", "fj", "fk", "flights", "florist", "fm", "fo",
-    "foo", "foundation", "fr", "frl", "frogans", "fund", "furniture", "futbol",
-    "ga", "gal", "gallery", "gb", "gbiz", "gd", "ge", "gent", "gf", "gg", "gh",
-    "gi", "gift", "gifts", "gives", "gl", "glass", "global", "globo", "gm",
-    "gmail", "gmo", "gmx", "gn", "gop", "gov", "gp", "gq", "gr", "graphics",
-    "gratis", "green", "gripe", "gs", "gt", "gu", "guide", "guitars", "guru",
-    "gw", "gy", "hamburg", "haus", "healthcare", "help", "here", "hiphop", "hiv",
-    "hk", "hm", "hn", "holdings", "holiday", "homes", "horse", "host", "hosting",
-    "house", "how", "hr", "ht", "hu", "id", "ie", "il", "im", "immo",
-    "immobilien", "in", "industries", "info", "ing", "ink", "institute", "insure",
-    "int", "international", "investments", "io", "iq", "ir", "is", "it", "je",
-    "jetzt", "jm", "jo", "jobs", "joburg", "jp", "juegos", "kaufen", "ke", "kg",
-    "kh", "ki", "kim", "kitchen", "kiwi", "km", "kn", "koeln", "kp", "kr", "krd",
-    "kred", "kw", "ky", "kz", "la", "lacaixa", "land", "lawyer", "lb", "lc",
-    "lease", "lgbt", "li", "life", "lighting", "limited", "limo", "link", "lk",
-    "loans", "london", "lotto", "lr", "ls", "lt", "ltda", "lu", "luxe", "luxury",
-    "lv", "ly", "ma", "maison", "management", "mango", "market", "marketing",
-    "mc", "md", "me", "media", "meet", "melbourne", "meme", "menu", "mg", "mh",
-    "miami", "mil", "mini", "mk", "ml", "mm", "mn", "mo", "mobi", "moda", "moe",
-    "monash", "mortgage", "moscow", "motorcycles", "mov", "mp", "mq", "mr", "ms",
-    "mt", "mu", "museum", "mv", "mw", "mx", "my", "mz", "na", "nagoya", "name",
-    "navy", "nc", "ne", "net", "network", "neustar", "new", "nf", "ng", "ngo",
-    "nhk", "ni", "ninja", "nl", "no", "np", "nr", "nra", "nrw", "nu", "nyc", "nz",
-    "okinawa", "om", "ong", "onl", "ooo", "org", "organic", "otsuka", "ovh", "pa",
-    "paris", "partners", "parts", "pe", "pf", "pg", "ph", "pharmacy", "photo",
-    "photography", "photos", "physio", "pics", "pictures", "pink", "pizza", "pk",
-    "pl", "place", "plumbing", "pm", "pn", "post", "pr", "praxi", "press", "pro",
-    "prod", "productions", "properties", "property", "ps", "pt", "pub", "pw",
-    "py", "qa", "qpon", "quebec", "re", "realtor", "recipes", "red", "rehab",
-    "reise", "reisen", "ren", "rentals", "repair", "report", "republican", "rest",
-    "restaurant", "reviews", "rich", "rio", "ro", "rocks", "rodeo", "rs", "rsvp",
-    "ru", "ruhr", "rw", "ryukyu", "sa", "saarland", "sarl", "sb", "sc", "sca",
-    "scb", "schmidt", "schule", "scot", "sd", "se", "services", "sexy", "sg",
-    "sh", "shiksha", "shoes", "si", "singles", "sj", "sk", "sl", "sm", "sn", "so",
-    "social", "software", "sohu", "solar", "solutions", "soy", "space", "spiegel",
-    "sr", "st", "su", "supplies", "supply", "support", "surf", "surgery",
-    "suzuki", "sv", "sx", "sy", "systems", "sz", "tatar", "tattoo", "tax", "tc",
-    "td", "technology", "tel", "tf", "tg", "th", "tienda", "tips", "tirol", "tj",
-    "tk", "tl", "tm", "tn", "to", "today", "tokyo", "tools", "top", "town",
-    "toys", "tp", "tr", "trade", "training", "travel", "tt", "tv", "tw", "tz",
-    "ua", "ug", "uk", "university", "uno", "uol", "us", "uy", "uz", "va",
-    "vacations", "vc", "ve", "vegas", "ventures", "versicherung", "vet", "vg",
-    "vi", "viajes", "villas", "vision", "vlaanderen", "vn", "vodka", "vote",
-    "voting", "voto", "voyage", "vu", "wales", "wang", "watch", "webcam",
-    "website", "wed", "wf", "whoswho", "wien", "wiki", "williamhill", "works",
-    "ws", "wtc", "wtf", "xn--1qqw23a", "xn--3bst00m", "xn--3ds443g",
-    "xn--3e0b707e", "xn--45brj9c", "xn--4gbrim", "xn--55qw42g", "xn--55qx5d",
-    "xn--6frz82g", "xn--6qq986b3xl", "xn--80adxhks", "xn--80ao21a",
-    "xn--80asehdb", "xn--80aswg", "xn--90a3ac", "xn--c1avg", "xn--cg4bki",
-    "xn--clchc0ea0b2g2a9gcd", "xn--czr694b", "xn--czru2d", "xn--d1acj3b",
-    "xn--fiq228c5hs", "xn--fiq64b", "xn--fiqs8s", "xn--fiqz9s", "xn--fpcrj9c3d",
-    "xn--fzc2c9e2c", "xn--gecrj9c", "xn--h2brj9c", "xn--i1b6b1a6a2e",
-    "xn--io0a7i", "xn--j1amh", "xn--j6w193g", "xn--kprw13d", "xn--kpry57d",
-    "xn--kput3i", "xn--l1acc", "xn--lgbbat1ad8j", "xn--mgb9awbf",
-    "xn--mgba3a4f16a", "xn--mgbaam7a8h", "xn--mgbab2bd", "xn--mgbayh7gpa",
-    "xn--mgbbh1a71e", "xn--mgbc0a9azcg", "xn--mgberp4a5d4ar", "xn--mgbx4cd0ab",
-    "xn--ngbc5azd", "xn--nqv7f", "xn--nqv7fs00ema", "xn--o3cw4h", "xn--ogbpf8fl",
-    "xn--p1ai", "xn--pgbs0dh", "xn--q9jyb4c", "xn--rhqv96g", "xn--s9brj9c",
-    "xn--ses554g", "xn--unup4y", "xn--vhquv", "xn--wgbh1c", "xn--wgbl6a",
-    "xn--xhq521b", "xn--xkc2al3hye2a", "xn--xkc2dl3a5ee0h", "xn--yfro4i67o",
-    "xn--ygbi2ammx", "xn--zfr164b", "xxx", "xyz", "yachts", "yandex", "ye",
-    "yokohama", "youtube", "yt", "za", "zm", "zone", "zw");
+// Updated on 2014102301 - 736 TLDs
+// http://data.iana.org/TLD/tlds-alpha-by-domain.txt
+$valid_tlds = ('abogado', 'ac', 'academy', 'accountants', 'active', 'actor', 'ad', 'ae',
+    'aero', 'af', 'ag', 'agency', 'ai', 'airforce', 'al', 'allfinanz', 'alsace',
+    'am', 'an', 'ao', 'aq', 'ar', 'archi', 'army', 'arpa', 'as', 'asia',
+    'associates', 'at', 'attorney', 'au', 'auction', 'audio', 'autos', 'aw', 'ax',
+    'axa', 'az', 'ba', 'band', 'bar', 'bargains', 'bayern', 'bb', 'bd', 'be',
+    'beer', 'berlin', 'best', 'bf', 'bg', 'bh', 'bi', 'bid', 'bike', 'bio', 'biz',
+    'bj', 'black', 'blackfriday', 'blue', 'bm', 'bmw', 'bn', 'bnpparibas', 'bo',
+    'boo', 'boutique', 'br', 'brussels', 'bs', 'bt', 'budapest', 'build',
+    'builders', 'business', 'buzz', 'bv', 'bw', 'by', 'bz', 'bzh', 'ca', 'cab',
+    'cal', 'camera', 'camp', 'cancerresearch', 'capetown', 'capital', 'caravan',
+    'cards', 'care', 'career', 'careers', 'casa', 'cash', 'cat', 'catering', 'cc',
+    'cd', 'center', 'ceo', 'cern', 'cf', 'cg', 'ch', 'channel', 'cheap',
+    'christmas', 'chrome', 'church', 'ci', 'citic', 'city', 'ck', 'cl', 'claims',
+    'cleaning', 'click', 'clinic', 'clothing', 'club', 'cm', 'cn', 'co', 'codes',
+    'coffee', 'college', 'cologne', 'com', 'community', 'company', 'computer',
+    'condos', 'construction', 'consulting', 'contractors', 'cooking', 'cool',
+    'coop', 'country', 'cr', 'credit', 'creditcard', 'crs', 'cruises', 'cu',
+    'cuisinella', 'cv', 'cw', 'cx', 'cy', 'cymru', 'cz', 'dad', 'dance', 'dating',
+    'day', 'de', 'deals', 'degree', 'democrat', 'dental', 'dentist', 'desi',
+    'diamonds', 'diet', 'digital', 'direct', 'directory', 'discount', 'dj', 'dk',
+    'dm', 'dnp', 'do', 'domains', 'durban', 'dvag', 'dz', 'eat', 'ec', 'edu',
+    'education', 'ee', 'eg', 'email', 'emerck', 'engineer', 'engineering',
+    'enterprises', 'equipment', 'er', 'es', 'esq', 'estate', 'et', 'eu', 'eus',
+    'events', 'exchange', 'expert', 'exposed', 'fail', 'farm', 'feedback', 'fi',
+    'finance', 'financial', 'fish', 'fishing', 'fitness', 'fj', 'fk', 'flights',
+    'florist', 'flsmidth', 'fly', 'fm', 'fo', 'foo', 'forsale', 'foundation', 'fr',
+    'frl', 'frogans', 'fund', 'furniture', 'futbol', 'ga', 'gal', 'gallery', 'gb',
+    'gbiz', 'gd', 'ge', 'gent', 'gf', 'gg', 'gh', 'gi', 'gift', 'gifts', 'gives',
+    'gl', 'glass', 'gle', 'global', 'globo', 'gm', 'gmail', 'gmo', 'gmx', 'gn',
+    'google', 'gop', 'gov', 'gp', 'gq', 'gr', 'graphics', 'gratis', 'green',
+    'gripe', 'gs', 'gt', 'gu', 'guide', 'guitars', 'guru', 'gw', 'gy', 'hamburg',
+    'haus', 'healthcare', 'help', 'here', 'hiphop', 'hiv', 'hk', 'hm', 'hn',
+    'holdings', 'holiday', 'homes', 'horse', 'host', 'hosting', 'house', 'how',
+    'hr', 'ht', 'hu', 'ibm', 'id', 'ie', 'il', 'im', 'immo', 'immobilien', 'in',
+    'industries', 'info', 'ing', 'ink', 'institute', 'insure', 'int',
+    'international', 'investments', 'io', 'iq', 'ir', 'is', 'it', 'je', 'jetzt',
+    'jm', 'jo', 'jobs', 'joburg', 'jp', 'juegos', 'kaufen', 'ke', 'kg', 'kh', 'ki',
+    'kim', 'kitchen', 'kiwi', 'km', 'kn', 'koeln', 'kp', 'kr', 'krd', 'kred', 'kw',
+    'ky', 'kz', 'la', 'lacaixa', 'land', 'lawyer', 'lb', 'lc', 'lease', 'lgbt',
+    'li', 'life', 'lighting', 'limited', 'limo', 'link', 'lk', 'loans', 'london',
+    'lotto', 'lr', 'ls', 'lt', 'ltda', 'lu', 'luxe', 'luxury', 'lv', 'ly', 'ma',
+    'maison', 'management', 'mango', 'market', 'marketing', 'mc', 'md', 'me',
+    'media', 'meet', 'melbourne', 'meme', 'menu', 'mg', 'mh', 'miami', 'mil',
+    'mini', 'mk', 'ml', 'mm', 'mn', 'mo', 'mobi', 'moda', 'moe', 'monash',
+    'mortgage', 'moscow', 'motorcycles', 'mov', 'mp', 'mq', 'mr', 'ms', 'mt', 'mu',
+    'museum', 'mv', 'mw', 'mx', 'my', 'mz', 'na', 'nagoya', 'name', 'navy', 'nc',
+    'ne', 'net', 'network', 'neustar', 'new', 'nexus', 'nf', 'ng', 'ngo', 'nhk',
+    'ni', 'ninja', 'nl', 'no', 'np', 'nr', 'nra', 'nrw', 'nu', 'nyc', 'nz',
+    'okinawa', 'om', 'ong', 'onl', 'ooo', 'org', 'organic', 'otsuka', 'ovh', 'pa',
+    'paris', 'partners', 'parts', 'pe', 'pf', 'pg', 'ph', 'pharmacy', 'photo',
+    'photography', 'photos', 'physio', 'pics', 'pictures', 'pink', 'pizza', 'pk',
+    'pl', 'place', 'plumbing', 'pm', 'pn', 'pohl', 'poker', 'post', 'pr', 'praxi',
+    'press', 'pro', 'prod', 'productions', 'prof', 'properties', 'property', 'ps',
+    'pt', 'pub', 'pw', 'py', 'qa', 'qpon', 'quebec', 're', 'realtor', 'recipes',
+    'red', 'rehab', 'reise', 'reisen', 'ren', 'rentals', 'repair', 'report',
+    'republican', 'rest', 'restaurant', 'reviews', 'rich', 'rio', 'rip', 'ro',
+    'rocks', 'rodeo', 'rs', 'rsvp', 'ru', 'ruhr', 'rw', 'ryukyu', 'sa', 'saarland',
+    'sarl', 'sb', 'sc', 'sca', 'scb', 'schmidt', 'schule', 'scot', 'sd', 'se',
+    'services', 'sexy', 'sg', 'sh', 'shiksha', 'shoes', 'si', 'singles', 'sj', 'sk',
+    'sl', 'sm', 'sn', 'so', 'social', 'software', 'sohu', 'solar', 'solutions',
+    'soy', 'space', 'spiegel', 'sr', 'st', 'su', 'supplies', 'supply', 'support',
+    'surf', 'surgery', 'suzuki', 'sv', 'sx', 'sy', 'systems', 'sz', 'taipei',
+    'tatar', 'tattoo', 'tax', 'tc', 'td', 'technology', 'tel', 'tf', 'tg', 'th',
+    'tienda', 'tips', 'tirol', 'tj', 'tk', 'tl', 'tm', 'tn', 'to', 'today', 'tokyo',
+    'tools', 'top', 'town', 'toys', 'tp', 'tr', 'trade', 'training', 'travel', 'tt',
+    'tui', 'tv', 'tw', 'tz', 'ua', 'ug', 'uk', 'university', 'uno', 'uol', 'us',
+    'uy', 'uz', 'va', 'vacations', 'vc', 've', 'vegas', 'ventures', 'versicherung',
+    'vet', 'vg', 'vi', 'viajes', 'villas', 'vision', 'vlaanderen', 'vn', 'vodka',
+    'vote', 'voting', 'voto', 'voyage', 'vu', 'wales', 'wang', 'watch', 'webcam',
+    'website', 'wed', 'wedding', 'wf', 'whoswho', 'wien', 'wiki', 'williamhill',
+    'wme', 'work', 'works', 'world', 'ws', 'wtc', 'wtf', 'xn--1qqw23a',
+    'xn--3bst00m', 'xn--3ds443g', 'xn--3e0b707e', 'xn--45brj9c', 'xn--4gbrim',
+    'xn--55qw42g', 'xn--55qx5d', 'xn--6frz82g', 'xn--6qq986b3xl', 'xn--80adxhks',
+    'xn--80ao21a', 'xn--80asehdb', 'xn--80aswg', 'xn--90a3ac', 'xn--c1avg',
+    'xn--cg4bki', 'xn--clchc0ea0b2g2a9gcd', 'xn--czr694b', 'xn--czru2d',
+    'xn--d1acj3b', 'xn--fiq228c5hs', 'xn--fiq64b', 'xn--fiqs8s', 'xn--fiqz9s',
+    'xn--fpcrj9c3d', 'xn--fzc2c9e2c', 'xn--gecrj9c', 'xn--h2brj9c',
+    'xn--i1b6b1a6a2e', 'xn--io0a7i', 'xn--j1amh', 'xn--j6w193g', 'xn--kprw13d',
+    'xn--kpry57d', 'xn--kput3i', 'xn--l1acc', 'xn--lgbbat1ad8j', 'xn--mgb9awbf',
+    'xn--mgba3a4f16a', 'xn--mgbaam7a8h', 'xn--mgbab2bd', 'xn--mgbayh7gpa',
+    'xn--mgbbh1a71e', 'xn--mgbc0a9azcg', 'xn--mgberp4a5d4ar', 'xn--mgbx4cd0ab',
+    'xn--ngbc5azd', 'xn--nqv7f', 'xn--nqv7fs00ema', 'xn--o3cw4h', 'xn--ogbpf8fl',
+    'xn--p1acf', 'xn--p1ai', 'xn--pgbs0dh', 'xn--q9jyb4c', 'xn--rhqv96g',
+    'xn--s9brj9c', 'xn--ses554g', 'xn--unup4y', 'xn--vermgensberater-ctb',
+    'xn--vermgensberatung-pwb', 'xn--vhquv', 'xn--wgbh1c', 'xn--wgbl6a',
+    'xn--xhq521b', 'xn--xkc2al3hye2a', 'xn--xkc2dl3a5ee0h', 'xn--yfro4i67o',
+    'xn--ygbi2ammx', 'xn--zfr164b', 'xxx', 'xyz', 'yachts', 'yandex', 'ye', 'yoga',
+    'yokohama', 'youtube', 'yt', 'za', 'zip', 'zm', 'zone', 'zw');
 
 // Special TLDs for testing and documentation purposes
 // http://tools.ietf.org/html/rfc2606#section-2

From 14233bfb201dfc3215163c1c943917108b00a8af Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <edmondas@poweradmin.org>
Date: Sun, 26 Oct 2014 09:34:27 +0200
Subject: [PATCH 13/61] Fixed wrong array initialization.

---
 inc/toolkit.inc.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/inc/toolkit.inc.php b/inc/toolkit.inc.php
index 1d1c7cfd6..760e0a15c 100644
--- a/inc/toolkit.inc.php
+++ b/inc/toolkit.inc.php
@@ -110,7 +110,7 @@
 
 // Updated on 2014102301 - 736 TLDs
 // http://data.iana.org/TLD/tlds-alpha-by-domain.txt
-$valid_tlds = ('abogado', 'ac', 'academy', 'accountants', 'active', 'actor', 'ad', 'ae',
+$valid_tlds = array('abogado', 'ac', 'academy', 'accountants', 'active', 'actor', 'ad', 'ae',
     'aero', 'af', 'ag', 'agency', 'ai', 'airforce', 'al', 'allfinanz', 'alsace',
     'am', 'an', 'ao', 'aq', 'ar', 'archi', 'army', 'arpa', 'as', 'asia',
     'associates', 'at', 'attorney', 'au', 'auction', 'audio', 'autos', 'aw', 'ax',

From 92441e88df28c34753fab511e30cb673d4aec7c4 Mon Sep 17 00:00:00 2001
From: Tobias Fiebig <tfiebig@smith.sec.t-labs.tu-berlin.de>
Date: Sun, 26 Oct 2014 19:33:25 +0100
Subject: [PATCH 14/61] Fix for issue #204

---
 inc/plugins/auth_local/auth_local.plugin.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/inc/plugins/auth_local/auth_local.plugin.php b/inc/plugins/auth_local/auth_local.plugin.php
index 9279fa852..ddd228326 100644
--- a/inc/plugins/auth_local/auth_local.plugin.php
+++ b/inc/plugins/auth_local/auth_local.plugin.php
@@ -102,8 +102,8 @@ function LDAPAuthenticate() {
             return;
         }
 
-        $ldapbind = ldap_bind($ldapconn, $ldap_binddn, $ldap_bindpw);
         ldap_set_option($ldapconn, LDAP_OPT_PROTOCOL_VERSION, $ldap_proto);
+        $ldapbind = ldap_bind($ldapconn, $ldap_binddn, $ldap_bindpw);
         if (!$ldapbind) {
             if (isset($_POST["authenticate"]))
                 log_error(sprintf('Failed LDAP authentication attempt from [%s] Reason: ldap_bind failed', $_SERVER['REMOTE_ADDR']));

From 6da57090a4c7488a010c78b429f4669ed0c66462 Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <edmondas@poweradmin.org>
Date: Fri, 31 Oct 2014 21:55:12 +0200
Subject: [PATCH 15/61] Fixes #215 - It was not possible to edit SOA records
 for administrators.

---
 edit.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/edit.php b/edit.php
index 1829492c1..59c453b39 100644
--- a/edit.php
+++ b/edit.php
@@ -226,8 +226,8 @@
 
         if ($domain_type == "SLAVE" || $perm_content_edit == "none" || (($perm_content_edit == "own" || $perm_content_edit == "own_as_client") && $user_is_zone_owner == "0")) {
             echo "     <td class=\"n\">&nbsp;</td>\n";
-        } 
-        elseif ( $r['type'] == "SOA" || ($r['type'] == "NS" && $perm_content_edit == "own_as_client")) {
+        }
+        elseif ($r['type'] == "SOA" && $perm_content_edit != "all" || ($r['type'] == "NS" && $perm_content_edit == "own_as_client")) {
         	echo "     <td class=\"n\">&nbsp;</td>\n";
         }        
         else {

From 5b8967afa8807e461ac8d9de84ae6d313215a30d Mon Sep 17 00:00:00 2001
From: Arsen Stasic <arsen.stasic@gmail.com>
Date: Thu, 27 Nov 2014 02:10:47 +0100
Subject: [PATCH 16/61] FIX issue #217: Multiple masters not allowed when
 adding a new slave zone

---
 add_zone_slave.php | 2 +-
 inc/dns.inc.php    | 5 ++++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/add_zone_slave.php b/add_zone_slave.php
index 959383f32..e43636a0a 100644
--- a/add_zone_slave.php
+++ b/add_zone_slave.php
@@ -64,7 +64,7 @@
         error(ERR_DOMAIN_EXISTS);
     } elseif (domain_exists($zone) || record_name_exists($zone)) {
         error(ERR_DOMAIN_EXISTS);
-    } elseif (!is_valid_ipv4($master, false) && !is_valid_ipv6($master)) {
+    } elseif (!are_multipe_valid_ips($master)) {
         error(ERR_DNS_IP);
     } else {
         if (add_domain($zone, $owner, $type, $master, 'none')) {
diff --git a/inc/dns.inc.php b/inc/dns.inc.php
index d5abaa27c..0815ffd0b 100644
--- a/inc/dns.inc.php
+++ b/inc/dns.inc.php
@@ -382,7 +382,10 @@ function is_valid_ipv4($ipv4, $answer = true) {
 
 
     if(filter_var($ipv4, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) === FALSE) {
-        error(ERR_DNS_IPV4); return false;
+        if($answer) {
+		error(ERR_DNS_IPV4); 
+	}
+	return false;
     }
     
     return true;

From 4dfc943bf3e13e4cc3ad1a8d41e451ea2c9b7011 Mon Sep 17 00:00:00 2001
From: Arsen Stasic <arsen.stasic@gmail.com>
Date: Thu, 27 Nov 2014 22:41:02 +0100
Subject: [PATCH 17/61] is_valid_ipv6 is now capable to suppressing error
 message

---
 inc/dns.inc.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/inc/dns.inc.php b/inc/dns.inc.php
index 0815ffd0b..697745a91 100644
--- a/inc/dns.inc.php
+++ b/inc/dns.inc.php
@@ -403,7 +403,10 @@ function is_valid_ipv6($ipv6, $answer = true) {
 
 
     if(filter_var($ipv6, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) === FALSE) {
-        error(ERR_DNS_IPV6); return false;
+	if($answer) {
+		error(ERR_DNS_IPV6);
+	}       
+	return false;
     }
 
     return true;

From ec5269134604ebeb4c36ca53bfd429955056da1a Mon Sep 17 00:00:00 2001
From: Arsen Stasic <arsen.stasic@gmail.com>
Date: Thu, 4 Dec 2014 23:06:48 +0100
Subject: [PATCH 18/61] FIX for #218: SRV creation is preventing use of _
 character

---
 inc/dns.inc.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/inc/dns.inc.php b/inc/dns.inc.php
index 697745a91..5585f7a05 100644
--- a/inc/dns.inc.php
+++ b/inc/dns.inc.php
@@ -711,11 +711,11 @@ function is_valid_rr_srv_name(&$name) {
     }
 
     $fields = explode('.', $name, 3);
-    if (!preg_match('/^_[\w-]+$/i', $fields[0])) {
+    if (!preg_match('/^[\w-]+$/i', $fields[0])) {
         error(ERR_DNS_SRV_NAME);
         return false;
     }
-    if (!preg_match('/^_[\w]+$/i', $fields[1])) {
+    if (!preg_match('/^[\w]+$/i', $fields[1])) {
         error(ERR_DNS_SRV_NAME);
         return false;
     }

From 2cd80c177ba6c9f28f5067348098c41c23f423ed Mon Sep 17 00:00:00 2001
From: Arsen Stasic <arsen.stasic@gmail.com>
Date: Fri, 5 Dec 2014 08:07:04 +0100
Subject: [PATCH 19/61] Revert "FIX for #218: SRV creation is preventing use of
 _ character"

This reverts commit ec5269134604ebeb4c36ca53bfd429955056da1a.
---
 inc/dns.inc.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/inc/dns.inc.php b/inc/dns.inc.php
index 5585f7a05..697745a91 100644
--- a/inc/dns.inc.php
+++ b/inc/dns.inc.php
@@ -711,11 +711,11 @@ function is_valid_rr_srv_name(&$name) {
     }
 
     $fields = explode('.', $name, 3);
-    if (!preg_match('/^[\w-]+$/i', $fields[0])) {
+    if (!preg_match('/^_[\w-]+$/i', $fields[0])) {
         error(ERR_DNS_SRV_NAME);
         return false;
     }
-    if (!preg_match('/^[\w]+$/i', $fields[1])) {
+    if (!preg_match('/^_[\w]+$/i', $fields[1])) {
         error(ERR_DNS_SRV_NAME);
         return false;
     }

From 361986bb708877cd122f09c07593f034a0d17ac2 Mon Sep 17 00:00:00 2001
From: ilsi <isirom@web.de>
Date: Mon, 9 Feb 2015 21:21:04 +0100
Subject: [PATCH 20/61]  Add support for PostgreSQL

Dynamic DNS updater should work not only with MySQL, but also with PostgreSQL
---
 dynamic_update.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dynamic_update.php b/dynamic_update.php
index b518a2cf4..345d6b3de 100644
--- a/dynamic_update.php
+++ b/dynamic_update.php
@@ -48,6 +48,8 @@ function safe($value) {
     if ($db_type == 'mysql') {
         $value = $db->quote($value, 'text');
         $value = substr($value, 1, -1); // remove quotes
+    } elseif ($db_type == 'pgsql') {
+	$value = pg_escape_string($value);        
     } else {
         return status_exit('baddbtype');
     }

From 885d0cc8cdbe2f1c34dcfed16c84673da3868da4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?G=C3=BCnter=20Grodotzki?= <guenter@weheartwebsites.de>
Date: Mon, 16 Feb 2015 19:33:40 +0200
Subject: [PATCH 21/61] mysql should use utf8

---
 inc/PDOLayer.php                      | 19 +++++++++++++++----
 inc/database.inc.php                  |  9 +++++++++
 install/database-structure.inc.php    | 18 +++++++++---------
 sql/poweradmin-mysql-db-structure.sql | 18 +++++++++---------
 4 files changed, 42 insertions(+), 22 deletions(-)

diff --git a/inc/PDOLayer.php b/inc/PDOLayer.php
index a6a441dca..a8a8e02dc 100644
--- a/inc/PDOLayer.php
+++ b/inc/PDOLayer.php
@@ -40,7 +40,7 @@ class PEAR {
      * Overrided isError method
      */
     public static function isError() {
-        
+
     }
 
 }
@@ -137,7 +137,7 @@ public function query($str) {
      * Dummy method
      */
     public function disconnect() {
-        
+
     }
 
     /**
@@ -222,9 +222,20 @@ public function createTable($name, $fields, $options = array()) {
 
         $query = "CREATE TABLE $name (" . implode(', ', $query_fields) . ')';
 
-        if ($db_type == 'mysql' && isset($options['type'])) {
-            $query .= ' ENGINE=' . $options['type'];
+        if ($db_type == 'mysql') {
+            if (isset($options['type'])) {
+                $query .= ' ENGINE=' . $options['type'];
+            }
+
+            if (isset($options['default_charset'])) {
+                $query .= ' DEFAULT CHARSET=' . $options['default_charset'];
+            }
+
+            if (isset($options['collate'])) {
+                $query .= ' COLLATE=' . $options['collate'];
+            }
         }
+
         $this->exec($query);
     }
 
diff --git a/inc/database.inc.php b/inc/database.inc.php
index cfffd89fa..1f629a986 100644
--- a/inc/database.inc.php
+++ b/inc/database.inc.php
@@ -131,8 +131,17 @@ function dbConnect() {
         $dsn = "$db_type:host=$db_host;port=$db_port;dbname=$db_name";
     }
 
+    if ($db_type === 'mysql') {
+        $dsn .= ';charset=utf8';
+    }
+
     $db = new PDOLayer($dsn, $db_user, $db_pass);
 
+    // http://stackoverflow.com/a/4361485/567193
+    if ($db_type === 'mysql' && version_compare(phpversion(), '5.3.6', '<')) {
+        $db->exec('set names utf8');
+    }
+
     if (isset($db_debug) && $db_debug) {
         $db->setOption('debug', 1);
     }
diff --git a/install/database-structure.inc.php b/install/database-structure.inc.php
index c1a44792b..c19b2570c 100644
--- a/install/database-structure.inc.php
+++ b/install/database-structure.inc.php
@@ -3,7 +3,7 @@
 $def_tables = array(
     array(
         'table_name' => 'perm_items',
-        'options' => array('type' => 'innodb'),
+        'options' => array('type' => 'innodb', 'default_charset' => 'utf8', 'collate' => 'utf8_unicode_ci'),
         'fields' => array(
             'id' => array(
                 'type' => 'integer',
@@ -38,7 +38,7 @@
     ),
     array(
         'table_name' => 'perm_templ',
-        'options' => array('type' => 'innodb'),
+        'options' => array('type' => 'innodb', 'default_charset' => 'utf8', 'collate' => 'utf8_unicode_ci'),
         'fields' => array(
             'id' => array(
                 'type' => 'integer',
@@ -74,7 +74,7 @@
     ),
     array(
         'table_name' => 'perm_templ_items',
-        'options' => array('type' => 'innodb'),
+        'options' => array('type' => 'innodb', 'default_charset' => 'utf8', 'collate' => 'utf8_unicode_ci'),
         'fields' => array(
             'id' => array(
                 'notnull' => 1,
@@ -110,7 +110,7 @@
     ),
     array(
         'table_name' => 'users',
-        'options' => array('type' => 'innodb'),
+        'options' => array('type' => 'innodb', 'default_charset' => 'utf8', 'collate' => 'utf8_unicode_ci'),
         'fields' => array(
             'id' => array
                 (
@@ -215,7 +215,7 @@
     ),
     array(
         'table_name' => 'zones',
-        'options' => array('type' => 'innodb'),
+        'options' => array('type' => 'innodb', 'default_charset' => 'utf8', 'collate' => 'utf8_unicode_ci'),
         'fields' => array(
             'id' => array
                 (
@@ -276,7 +276,7 @@
     ),
     array(
         'table_name' => 'zone_templ',
-        'options' => array('type' => 'innodb'),
+        'options' => array('type' => 'innodb', 'default_charset' => 'utf8', 'collate' => 'utf8_unicode_ci'),
         'fields' => array(
             'id' => array
                 (
@@ -327,7 +327,7 @@
     ),
     array(
         'table_name' => 'zone_templ_records',
-        'options' => array('type' => 'innodb'),
+        'options' => array('type' => 'innodb', 'default_charset' => 'utf8', 'collate' => 'utf8_unicode_ci'),
         'fields' => array(
             'id' => array
                 (
@@ -411,7 +411,7 @@
     ),
     array(
         'table_name' => 'records_zone_templ',
-        'options' => array('type' => 'innodb'),
+        'options' => array('type' => 'innodb', 'default_charset' => 'utf8', 'collate' => 'utf8_unicode_ci'),
         'fields' => array(
             'domain_id' => array
                 (
@@ -450,7 +450,7 @@
     ),
     array(
         'table_name' => 'migrations',
-        'options' => array('type' => 'innodb'),
+        'options' => array('type' => 'innodb', 'default_charset' => 'utf8', 'collate' => 'utf8_unicode_ci'),
         'fields' => array(
             'domain_id' => array
                 (
diff --git a/sql/poweradmin-mysql-db-structure.sql b/sql/poweradmin-mysql-db-structure.sql
index cc4e743ae..a78f7de50 100644
--- a/sql/poweradmin-mysql-db-structure.sql
+++ b/sql/poweradmin-mysql-db-structure.sql
@@ -13,7 +13,7 @@ CREATE TABLE users (
   active      TINYINT      NOT NULL,
   use_ldap    TINYINT      NOT NULL,
   PRIMARY KEY (id)
-) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
 
 START TRANSACTION;
     INSERT INTO users ( id, username, `password`, fullname, email
@@ -27,7 +27,7 @@ CREATE TABLE perm_items (
   name VARCHAR(64) NOT NULL,
   descr TEXT       NOT NULL,
   PRIMARY KEY (id)
-) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
 
 START TRANSACTION;
     INSERT INTO perm_items ( id, name, descr ) VALUES ( 41, 'zone_master_add', 'User is allowed to add new master zones.' );
@@ -58,7 +58,7 @@ CREATE TABLE perm_templ (
   name  VARCHAR(128) NOT NULL,
   descr TEXT         NOT NULL,
   PRIMARY KEY  (id)
-) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
 
 START TRANSACTION;
     INSERT INTO perm_templ ( id, name, descr )
@@ -71,7 +71,7 @@ CREATE TABLE perm_templ_items (
   templ_id INTEGER NOT NULL,
   perm_id INTEGER  NOT NULL,
   PRIMARY KEY (id)
-) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
 
 START TRANSACTION;
     INSERT INTO perm_templ_items ( id, templ_id, perm_id )
@@ -86,7 +86,7 @@ CREATE TABLE zones (
   zone_templ_id INTEGER NOT NULL,
   PRIMARY KEY (id),
   KEY owner (owner)
-) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
 
 CREATE TABLE zone_templ (
   id    INTEGER      NOT NULL AUTO_INCREMENT,
@@ -94,7 +94,7 @@ CREATE TABLE zone_templ (
   descr TEXT         NOT NULL,
   owner INTEGER      NOT NULL,
   PRIMARY KEY (id)
-) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
 
 CREATE TABLE zone_templ_records (
   id            INTEGER      NOT NULL AUTO_INCREMENT,
@@ -105,15 +105,15 @@ CREATE TABLE zone_templ_records (
   ttl           INTEGER      NOT NULL,
   prio          INTEGER      NOT NULL,
   PRIMARY KEY (id)
-) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
 
 CREATE TABLE records_zone_templ (
     domain_id INTEGER NOT NULL,
     record_id INTEGER NOT NULL,
     zone_templ_id INTEGER NOT NULL
-) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
 
 CREATE TABLE migrations (
     version VARCHAR(255) NOT NULL,
     apply_time INTEGER NOT NULL
-) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;

From 06df0e36d3bc19c405b4fb068c189873d8cced18 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?G=C3=BCnter=20Grodotzki?= <guenter@weheartwebsites.de>
Date: Mon, 16 Feb 2015 23:38:08 +0200
Subject: [PATCH 22/61] password cleanups / added bcrypt as secure password
 storage

---
 inc/config-me.inc.php                         |   7 +-
 inc/password.inc.php                          | 149 ++++++++++++++++++
 inc/plugins/auth_local/auth_local.plugin.php  |   7 +-
 .../users_local/users_local.plugin.php        |  37 +----
 inc/toolkit.inc.php                           |  53 +------
 install/database-structure.inc.php            |   2 +-
 install/index.php                             |   6 +-
 7 files changed, 166 insertions(+), 95 deletions(-)
 create mode 100644 inc/password.inc.php

diff --git a/inc/config-me.inc.php b/inc/config-me.inc.php
index ed9ac4418..c5b9feeee 100644
--- a/inc/config-me.inc.php
+++ b/inc/config-me.inc.php
@@ -8,8 +8,8 @@
  * @copyright   2010-2014 Poweradmin Development Team
  * @license     http://opensource.org/licenses/GPL-3.0 GPL
  */
-// NOTE: Do not edit this file, otherwise it's very likely your changes 
-// will be overwritten with an upgrade.  
+// NOTE: Do not edit this file, otherwise it's very likely your changes
+// will be overwritten with an upgrade.
 // Instead, create the file "inc/config.inc.php" and set the variables you
 // want to set there. Your changes will override the defaults provided by us.
 // Better description of available configuration settings you can find here:
@@ -28,7 +28,8 @@
 // Security settings
 // This should be changed upon install
 $session_key = 'p0w3r4dm1n';
-$password_encryption = 'md5'; // or md5salt
+$password_encryption = 'md5'; // md5, md5salt or bcrypt
+//$password_encryption_cost = 12; // needed for bcrypt
 
 // Interface settings
 $iface_lang = 'en_EN';
diff --git a/inc/password.inc.php b/inc/password.inc.php
new file mode 100644
index 000000000..67f6ebeb0
--- /dev/null
+++ b/inc/password.inc.php
@@ -0,0 +1,149 @@
+<?php
+/*  Poweradmin, a friendly web-based admin tool for PowerDNS.
+ *  See <http://www.poweradmin.org> for more details.
+ *
+ *  Copyright 2007-2009  Rejo Zenger <rejo@zenger.nl>
+ *  Copyright 2010-2015  Poweradmin Development Team
+ *      <http://www.poweradmin.org/credits.html>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/**
+ *  Password functions
+ *
+ * @package     Poweradmin
+ * @copyright   2007-2010 Rejo Zenger <rejo@zenger.nl>
+ * @copyright   2010-2015 Poweradmin Development Team
+ * @license     http://opensource.org/licenses/GPL-3.0 GPL
+ */
+namespace {
+
+    if (!function_exists('gen_mix_salt')) {
+        /**
+         * Generate random salt and salted password
+         *
+         * @param string $pass password
+         *
+         * @return salted password
+         */
+        function gen_mix_salt($pass) {
+            $salt = generate_salt();
+            return mix_salt($salt, $pass);
+        }
+
+        /**
+         * Generate salted password
+         *
+         * @param string $salt salt
+         * @param string $pass password
+         *
+         * @return string salted password
+         */
+        function mix_salt($salt, $pass) {
+            return md5($salt . $pass) . ':' . $salt;
+        }
+
+        /**
+         * Extract salt from password
+         *
+         * @param string $password salted password
+         *
+         * @return string salt
+         */
+        function extract_salt($password) {
+            return substr(strchr($password, ':'), 1);
+        }
+
+        /**
+         * Generate random salt for encryption
+         *
+         * @param int $len salt length (default=5)
+         *
+         * @return string salt string
+         */
+        function generate_salt($len = 5) {
+            $valid_characters = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890@#$%^*()_-!';
+            $valid_len = strlen($valid_characters) - 1;
+            $salt = '';
+
+            for ($i = 0; $i < $len; $i++) {
+                $salt .= $valid_characters[mt_rand(0, $valid_len)];
+            }
+
+            return $salt;
+        }
+
+    }
+}
+
+namespace Poweradmin\password {
+
+    if (!function_exists('Poweradmin\\password\\hash')) {
+
+        function hash($password) {
+            global $password_encryption, $password_encryption_cost;
+
+            if ($password_encryption === 'md5salt') {
+                return gen_mix_salt($password);
+            } elseif ($password_encryption === 'bcrypt') {
+                return password_hash($password, PASSWORD_BCRYPT, ['cost' => $password_encryption_cost]);
+            } else {
+                return md5($password);
+            }
+        }
+
+        function verify($password, $hash) {
+            global $password_encryption;
+
+            if ($password_encryption === 'md5salt') {
+                return _strsafecmp(mix_salt(extract_salt($hash), $password), $hash);
+            } elseif ($password_encryption === 'bcrypt') {
+                return password_verify($password, $hash);
+            } else {
+                return _strsafecmp(md5($password), $hash);
+            }
+        }
+
+        function needs_rehash($hash) {
+            // @todo
+        }
+
+        /**
+         * @see https://github.com/ircmaxell/password_compat
+         */
+        function _strlen($binary_string) {
+            if (function_exists('mb_strlen')) {
+                return mb_strlen($binary_string, '8bit');
+            }
+            return strlen($binary_string);
+        }
+
+        /**
+         * @see https://github.com/ircmaxell/password_compat
+         */
+        function _strsafecmp($str1, $str2) {
+            if (!is_string($str1) || !is_string($str2) || _strlen($str1) !== _strlen($str1)) {
+                return false;
+            }
+
+            $status = 0;
+            for ($i = 0; $i < _strlen($str1); $i++) {
+                $status |= (ord($str1[$i]) ^ ord($str2[$i]));
+            }
+
+            return $status === 0;
+        }
+    }
+}
\ No newline at end of file
diff --git a/inc/plugins/auth_local/auth_local.plugin.php b/inc/plugins/auth_local/auth_local.plugin.php
index ddd228326..bc6c28970 100644
--- a/inc/plugins/auth_local/auth_local.plugin.php
+++ b/inc/plugins/auth_local/auth_local.plugin.php
@@ -183,13 +183,8 @@ function SQLAuthenticate() {
         $rowObj = $db->queryRow("SELECT id, fullname, password FROM users WHERE username=" . $db->quote($_SESSION["userlogin"], 'text') . " AND active=1");
 
         if ($rowObj) {
-            if ($password_encryption == 'md5salt') {
-                $session_password = mix_salt(extract_salt($rowObj["password"]), $session_pass);
-            } else {
-                $session_password = md5($session_pass);
-            }
 
-            if ($session_password == $rowObj["password"]) {
+            if (Poweradmin\password\verify($session_pass, $rowObj['password'])) {
 
                 $_SESSION["userid"] = $rowObj["id"];
                 $_SESSION["name"] = $rowObj["fullname"];
diff --git a/inc/plugins/users_local/users_local.plugin.php b/inc/plugins/users_local/users_local.plugin.php
index 46466b187..b0980be44 100644
--- a/inc/plugins/users_local/users_local.plugin.php
+++ b/inc/plugins/users_local/users_local.plugin.php
@@ -303,7 +303,6 @@ function delete_perm_templ_local($ptid) {
  */
 function edit_user_local($id, $user, $fullname, $email, $perm_templ, $description, $active, $password) {
     global $db;
-    global $password_encryption;
 
     do_hook('verify_permission', 'user_edit_own') ? $perm_edit_own = "1" : $perm_edit_own = "0";
     do_hook('verify_permission', 'user_edit_others') ? $perm_edit_others = "1" : $perm_edit_others = "0";
@@ -365,11 +364,7 @@ function edit_user_local($id, $user, $fullname, $email, $perm_templ, $descriptio
 				active = " . $db->quote($active, 'integer');
 
         if ($password != "") {
-            if ($password_encryption == 'md5salt') {
-                $query .= ", password = " . $db->quote(gen_mix_salt($password), 'text');
-            } else {
-                $query .= ", password = " . $db->quote(md5($password), 'text');
-            }
+            $query .= ", password = " . $db->quote(Poweradmin\password\hash($password), 'text');
         }
 
         $query .= " WHERE id = " . $db->quote($id, 'integer');
@@ -398,7 +393,6 @@ function edit_user_local($id, $user, $fullname, $email, $perm_templ, $descriptio
  */
 function change_user_pass_local($details) {
     global $db;
-    global $password_encryption;
 
     if ($details ['newpass'] != $details ['newpass2']) {
         error(ERR_USER_MATCH_NEW_PASS);
@@ -414,19 +408,8 @@ function change_user_pass_local($details) {
 
     $rinfo = $response->fetchRow();
 
-    if ($password_encryption == 'md5salt') {
-        $extracted_salt = extract_salt($rinfo ['password']);
-        $current_password = mix_salt($extracted_salt, $details ['currentpass']);
-    } else {
-        $current_password = md5($details ['currentpass']);
-    }
-
-    if ($current_password == $rinfo ['password']) {
-        if ($password_encryption == 'md5salt') {
-            $query = "UPDATE users SET password = " . $db->quote(gen_mix_salt($details ['newpass']), 'text') . " WHERE id = " . $db->quote($rinfo ['id'], 'integer');
-        } else {
-            $query = "UPDATE users SET password = " . $db->quote(md5($details ['newpass']), 'text') . " WHERE id = " . $db->quote($rinfo ['id'], 'integer');
-        }
+    if (Poweradmin\password\verify($details['currentpass'], $rinfo['password'])) {
+        $query = "UPDATE users SET password = " . $db->quote(Poweradmin\password\hash($details['newpass']), 'text') . " WHERE id = " . $db->quote($rinfo ['id'], 'integer');
         $response = $db->query($query);
         if (PEAR::isError($response)) {
             error($response->getMessage());
@@ -774,7 +757,6 @@ function update_perm_templ_details_local($details) {
  */
 function update_user_details_local($details) {
     global $db;
-    global $password_encryption;
 
     do_hook('verify_permission', 'user_edit_own') ? $perm_edit_own = "1" : $perm_edit_own = "0";
     do_hook('verify_permission', 'user_edit_others') ? $perm_edit_others = "1" : $perm_edit_others = "0";
@@ -849,11 +831,7 @@ function update_user_details_local($details) {
         }
 
         if (isset($details ['password']) && $details ['password'] != "") {
-            if ($password_encryption == 'md5salt') {
-                $query .= ", password = " . $db->quote(gen_mix_salt($details ['password']), 'text');
-            } else {
-                $query .= ", password = " . $db->quote(md5($details ['password']), 'text');
-            }
+            $query .= ", password = " . $db->quote(Poweradmin\password\hash($details['password'], 'text'));
         }
 
         $query .= " WHERE id = " . $db->quote($details ['uid'], 'integer');
@@ -879,7 +857,6 @@ function update_user_details_local($details) {
  */
 function add_new_user_local($details) {
     global $db;
-    global $password_encryption;
 
     if (!do_hook('verify_permission', 'user_add_new')) {
         error(ERR_PERM_ADD_USER);
@@ -901,11 +878,7 @@ function add_new_user_local($details) {
         $query .= ' perm_templ,';
     }
 
-    if ($password_encryption == 'md5salt') {
-        $password_hash = gen_mix_salt($details ['password']);
-    } else {
-        $password_hash = md5($details ['password']);
-    }
+    $password_hash = Poweradmin\password\hash($details['password']);
 
     $query .= " active) VALUES (" . $db->quote($details ['username'], 'text') . ", " . $db->quote($password_hash, 'text') . ", " . $db->quote($details ['fullname'], 'text') . ", " . $db->quote($details ['email'], 'text') . ", " . $db->quote($details ['descr'], 'text') . ", ";
     if (do_hook('verify_permission', 'user_edit_templ_perm')) {
diff --git a/inc/toolkit.inc.php b/inc/toolkit.inc.php
index 18bfbb61e..544653c55 100644
--- a/inc/toolkit.inc.php
+++ b/inc/toolkit.inc.php
@@ -263,7 +263,7 @@
  * *********** */
 $db = dbConnect();
 require_once("plugin.inc.php");
-
+require_once("password.inc.php");
 require_once("i18n.inc.php");
 require_once("auth.inc.php");
 require_once("users.inc.php");
@@ -563,57 +563,6 @@ function debug_print($var) {
     echo "</pre>\n";
 }
 
-
-/** Generate random salt for encryption
- *
- * @param int $len salt length (default=5)
- *
- * @return string salt string
- */
-function generate_salt($len = 5) {
-    $valid_characters = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890@#$%^*()_-!';
-    $valid_len = strlen($valid_characters) - 1;
-    $salt = "";
-
-    for ($i = 0; $i < $len; $i++) {
-        $salt .= $valid_characters[rand(0, $valid_len)];
-    }
-
-    return $salt;
-}
-
-/** Extract salt from password
- *
- * @param string $password salted password
- *
- * @return string salt
- */
-function extract_salt($password) {
-    return substr(strchr($password, ':'), 1);
-}
-
-/** Generate salted password
- *
- * @param string $salt salt
- * @param string $pass password
- *
- * @return string salted password
- */
-function mix_salt($salt, $pass) {
-    return md5($salt . $pass) . ':' . $salt;
-}
-
-/** Generate random salt and salted password
- *
- * @param string $pass password
- *
- * @return salted password
- */
-function gen_mix_salt($pass) {
-    $salt = generate_salt();
-    return mix_salt($salt, $pass);
-}
-
 function do_log($syslog_message, $priority) {
     global $syslog_use, $syslog_ident, $syslog_facility;
     if ($syslog_use) {
diff --git a/install/database-structure.inc.php b/install/database-structure.inc.php
index c1a44792b..6f6c9d825 100644
--- a/install/database-structure.inc.php
+++ b/install/database-structure.inc.php
@@ -520,7 +520,7 @@
 );
 
 $def_remaining_queries = array(
-    "INSERT INTO users (username, password, fullname, email, description, perm_templ, active, use_ldap) VALUES ('admin'," . $db->quote(md5($pa_pass), 'text') . ",'Administrator','admin@example.net','Administrator with full rights.',1,1,0)",
+    "INSERT INTO users (username, password, fullname, email, description, perm_templ, active, use_ldap) VALUES ('admin',%s,'Administrator','admin@example.net','Administrator with full rights.',1,1,0)",
     "INSERT INTO perm_templ (name, descr) VALUES ('Administrator','Administrator template with full rights.')",
     "INSERT INTO perm_templ_items (templ_id, perm_id) VALUES (1,53)"
 );
diff --git a/install/index.php b/install/index.php
index 073a64cdb..fd39351f2 100644
--- a/install/index.php
+++ b/install/index.php
@@ -2,6 +2,7 @@
 
 require_once('../inc/error.inc.php');
 require_once('../inc/i18n.inc.php');
+require_once('../inc/password.inc.php');
 
 if (isset($_POST['language'])) {
     $language = $_POST['language'];
@@ -178,7 +179,10 @@ function get_random_key() {
         if (method_exists($fill_perm_items, 'free')) {
             $fill_perm_items->free();
         }
-        foreach ($def_remaining_queries as $user_query) {
+        foreach ($def_remaining_queries as $n => $user_query) {
+            if ($n === 0) {
+                $user_query = sprintf($user_query, $db->quote(Poweradmin\password\hash($pa_pass), 'text'));
+            }
             $db->query($user_query);
         }
         echo _('done!') . "</p>";

From 612954efb25e32076ccaec438278cd2dd1ccf178 Mon Sep 17 00:00:00 2001
From: darton <dariusz@kowalczyk.it>
Date: Sat, 28 Feb 2015 19:02:49 +0100
Subject: [PATCH 23/61] update top level domains list to newest version

Updated on 2015022800 - 831 TLDs from http://data.iana.org/TLD/tlds-alpha-by-domain.txt
---
 inc/toolkit.inc.php | 171 +++++++++++++++++++++-----------------------
 1 file changed, 82 insertions(+), 89 deletions(-)

diff --git a/inc/toolkit.inc.php b/inc/toolkit.inc.php
index 18bfbb61e..4279b6845 100644
--- a/inc/toolkit.inc.php
+++ b/inc/toolkit.inc.php
@@ -108,96 +108,89 @@
     define('RECORD_SORT_BY', "name");
 }
 
-// Updated on 2014102301 - 736 TLDs
+// Updated on 2015022800 - 831 TLDs
 // http://data.iana.org/TLD/tlds-alpha-by-domain.txt
-$valid_tlds = array('abogado', 'ac', 'academy', 'accountants', 'active', 'actor', 'ad', 'ae',
-    'aero', 'af', 'ag', 'agency', 'ai', 'airforce', 'al', 'allfinanz', 'alsace',
-    'am', 'an', 'ao', 'aq', 'ar', 'archi', 'army', 'arpa', 'as', 'asia',
-    'associates', 'at', 'attorney', 'au', 'auction', 'audio', 'autos', 'aw', 'ax',
-    'axa', 'az', 'ba', 'band', 'bar', 'bargains', 'bayern', 'bb', 'bd', 'be',
-    'beer', 'berlin', 'best', 'bf', 'bg', 'bh', 'bi', 'bid', 'bike', 'bio', 'biz',
-    'bj', 'black', 'blackfriday', 'blue', 'bm', 'bmw', 'bn', 'bnpparibas', 'bo',
-    'boo', 'boutique', 'br', 'brussels', 'bs', 'bt', 'budapest', 'build',
-    'builders', 'business', 'buzz', 'bv', 'bw', 'by', 'bz', 'bzh', 'ca', 'cab',
-    'cal', 'camera', 'camp', 'cancerresearch', 'capetown', 'capital', 'caravan',
-    'cards', 'care', 'career', 'careers', 'casa', 'cash', 'cat', 'catering', 'cc',
-    'cd', 'center', 'ceo', 'cern', 'cf', 'cg', 'ch', 'channel', 'cheap',
-    'christmas', 'chrome', 'church', 'ci', 'citic', 'city', 'ck', 'cl', 'claims',
-    'cleaning', 'click', 'clinic', 'clothing', 'club', 'cm', 'cn', 'co', 'codes',
-    'coffee', 'college', 'cologne', 'com', 'community', 'company', 'computer',
-    'condos', 'construction', 'consulting', 'contractors', 'cooking', 'cool',
-    'coop', 'country', 'cr', 'credit', 'creditcard', 'crs', 'cruises', 'cu',
-    'cuisinella', 'cv', 'cw', 'cx', 'cy', 'cymru', 'cz', 'dad', 'dance', 'dating',
-    'day', 'de', 'deals', 'degree', 'democrat', 'dental', 'dentist', 'desi',
-    'diamonds', 'diet', 'digital', 'direct', 'directory', 'discount', 'dj', 'dk',
-    'dm', 'dnp', 'do', 'domains', 'durban', 'dvag', 'dz', 'eat', 'ec', 'edu',
-    'education', 'ee', 'eg', 'email', 'emerck', 'engineer', 'engineering',
-    'enterprises', 'equipment', 'er', 'es', 'esq', 'estate', 'et', 'eu', 'eus',
-    'events', 'exchange', 'expert', 'exposed', 'fail', 'farm', 'feedback', 'fi',
-    'finance', 'financial', 'fish', 'fishing', 'fitness', 'fj', 'fk', 'flights',
-    'florist', 'flsmidth', 'fly', 'fm', 'fo', 'foo', 'forsale', 'foundation', 'fr',
-    'frl', 'frogans', 'fund', 'furniture', 'futbol', 'ga', 'gal', 'gallery', 'gb',
-    'gbiz', 'gd', 'ge', 'gent', 'gf', 'gg', 'gh', 'gi', 'gift', 'gifts', 'gives',
-    'gl', 'glass', 'gle', 'global', 'globo', 'gm', 'gmail', 'gmo', 'gmx', 'gn',
-    'google', 'gop', 'gov', 'gp', 'gq', 'gr', 'graphics', 'gratis', 'green',
-    'gripe', 'gs', 'gt', 'gu', 'guide', 'guitars', 'guru', 'gw', 'gy', 'hamburg',
-    'haus', 'healthcare', 'help', 'here', 'hiphop', 'hiv', 'hk', 'hm', 'hn',
-    'holdings', 'holiday', 'homes', 'horse', 'host', 'hosting', 'house', 'how',
-    'hr', 'ht', 'hu', 'ibm', 'id', 'ie', 'il', 'im', 'immo', 'immobilien', 'in',
-    'industries', 'info', 'ing', 'ink', 'institute', 'insure', 'int',
-    'international', 'investments', 'io', 'iq', 'ir', 'is', 'it', 'je', 'jetzt',
-    'jm', 'jo', 'jobs', 'joburg', 'jp', 'juegos', 'kaufen', 'ke', 'kg', 'kh', 'ki',
-    'kim', 'kitchen', 'kiwi', 'km', 'kn', 'koeln', 'kp', 'kr', 'krd', 'kred', 'kw',
-    'ky', 'kz', 'la', 'lacaixa', 'land', 'lawyer', 'lb', 'lc', 'lease', 'lgbt',
-    'li', 'life', 'lighting', 'limited', 'limo', 'link', 'lk', 'loans', 'london',
-    'lotto', 'lr', 'ls', 'lt', 'ltda', 'lu', 'luxe', 'luxury', 'lv', 'ly', 'ma',
-    'maison', 'management', 'mango', 'market', 'marketing', 'mc', 'md', 'me',
-    'media', 'meet', 'melbourne', 'meme', 'menu', 'mg', 'mh', 'miami', 'mil',
-    'mini', 'mk', 'ml', 'mm', 'mn', 'mo', 'mobi', 'moda', 'moe', 'monash',
-    'mortgage', 'moscow', 'motorcycles', 'mov', 'mp', 'mq', 'mr', 'ms', 'mt', 'mu',
-    'museum', 'mv', 'mw', 'mx', 'my', 'mz', 'na', 'nagoya', 'name', 'navy', 'nc',
-    'ne', 'net', 'network', 'neustar', 'new', 'nexus', 'nf', 'ng', 'ngo', 'nhk',
-    'ni', 'ninja', 'nl', 'no', 'np', 'nr', 'nra', 'nrw', 'nu', 'nyc', 'nz',
-    'okinawa', 'om', 'ong', 'onl', 'ooo', 'org', 'organic', 'otsuka', 'ovh', 'pa',
-    'paris', 'partners', 'parts', 'pe', 'pf', 'pg', 'ph', 'pharmacy', 'photo',
-    'photography', 'photos', 'physio', 'pics', 'pictures', 'pink', 'pizza', 'pk',
-    'pl', 'place', 'plumbing', 'pm', 'pn', 'pohl', 'poker', 'post', 'pr', 'praxi',
-    'press', 'pro', 'prod', 'productions', 'prof', 'properties', 'property', 'ps',
-    'pt', 'pub', 'pw', 'py', 'qa', 'qpon', 'quebec', 're', 'realtor', 'recipes',
-    'red', 'rehab', 'reise', 'reisen', 'ren', 'rentals', 'repair', 'report',
-    'republican', 'rest', 'restaurant', 'reviews', 'rich', 'rio', 'rip', 'ro',
-    'rocks', 'rodeo', 'rs', 'rsvp', 'ru', 'ruhr', 'rw', 'ryukyu', 'sa', 'saarland',
-    'sarl', 'sb', 'sc', 'sca', 'scb', 'schmidt', 'schule', 'scot', 'sd', 'se',
-    'services', 'sexy', 'sg', 'sh', 'shiksha', 'shoes', 'si', 'singles', 'sj', 'sk',
-    'sl', 'sm', 'sn', 'so', 'social', 'software', 'sohu', 'solar', 'solutions',
-    'soy', 'space', 'spiegel', 'sr', 'st', 'su', 'supplies', 'supply', 'support',
-    'surf', 'surgery', 'suzuki', 'sv', 'sx', 'sy', 'systems', 'sz', 'taipei',
-    'tatar', 'tattoo', 'tax', 'tc', 'td', 'technology', 'tel', 'tf', 'tg', 'th',
-    'tienda', 'tips', 'tirol', 'tj', 'tk', 'tl', 'tm', 'tn', 'to', 'today', 'tokyo',
-    'tools', 'top', 'town', 'toys', 'tp', 'tr', 'trade', 'training', 'travel', 'tt',
-    'tui', 'tv', 'tw', 'tz', 'ua', 'ug', 'uk', 'university', 'uno', 'uol', 'us',
-    'uy', 'uz', 'va', 'vacations', 'vc', 've', 'vegas', 'ventures', 'versicherung',
-    'vet', 'vg', 'vi', 'viajes', 'villas', 'vision', 'vlaanderen', 'vn', 'vodka',
-    'vote', 'voting', 'voto', 'voyage', 'vu', 'wales', 'wang', 'watch', 'webcam',
-    'website', 'wed', 'wedding', 'wf', 'whoswho', 'wien', 'wiki', 'williamhill',
-    'wme', 'work', 'works', 'world', 'ws', 'wtc', 'wtf', 'xn--1qqw23a',
-    'xn--3bst00m', 'xn--3ds443g', 'xn--3e0b707e', 'xn--45brj9c', 'xn--4gbrim',
-    'xn--55qw42g', 'xn--55qx5d', 'xn--6frz82g', 'xn--6qq986b3xl', 'xn--80adxhks',
-    'xn--80ao21a', 'xn--80asehdb', 'xn--80aswg', 'xn--90a3ac', 'xn--c1avg',
-    'xn--cg4bki', 'xn--clchc0ea0b2g2a9gcd', 'xn--czr694b', 'xn--czru2d',
-    'xn--d1acj3b', 'xn--fiq228c5hs', 'xn--fiq64b', 'xn--fiqs8s', 'xn--fiqz9s',
-    'xn--fpcrj9c3d', 'xn--fzc2c9e2c', 'xn--gecrj9c', 'xn--h2brj9c',
-    'xn--i1b6b1a6a2e', 'xn--io0a7i', 'xn--j1amh', 'xn--j6w193g', 'xn--kprw13d',
-    'xn--kpry57d', 'xn--kput3i', 'xn--l1acc', 'xn--lgbbat1ad8j', 'xn--mgb9awbf',
-    'xn--mgba3a4f16a', 'xn--mgbaam7a8h', 'xn--mgbab2bd', 'xn--mgbayh7gpa',
-    'xn--mgbbh1a71e', 'xn--mgbc0a9azcg', 'xn--mgberp4a5d4ar', 'xn--mgbx4cd0ab',
-    'xn--ngbc5azd', 'xn--nqv7f', 'xn--nqv7fs00ema', 'xn--o3cw4h', 'xn--ogbpf8fl',
-    'xn--p1acf', 'xn--p1ai', 'xn--pgbs0dh', 'xn--q9jyb4c', 'xn--rhqv96g',
-    'xn--s9brj9c', 'xn--ses554g', 'xn--unup4y', 'xn--vermgensberater-ctb',
-    'xn--vermgensberatung-pwb', 'xn--vhquv', 'xn--wgbh1c', 'xn--wgbl6a',
-    'xn--xhq521b', 'xn--xkc2al3hye2a', 'xn--xkc2dl3a5ee0h', 'xn--yfro4i67o',
-    'xn--ygbi2ammx', 'xn--zfr164b', 'xxx', 'xyz', 'yachts', 'yandex', 'ye', 'yoga',
-    'yokohama', 'youtube', 'yt', 'za', 'zip', 'zm', 'zone', 'zw');
+$valid_tlds = array('abogado','ac','academy','accountants','active','actor','ad','adult','ae','aero',
+'af','ag','agency','ai','airforce','al','allfinanz','alsace','am','amsterdam','an',
+'android','ao','apartments','aq','aquarelle','ar','archi','army','arpa','as','asia',
+'associates','at','attorney','au','auction','audio','autos','aw','ax','axa','az','ba',
+'band','bank','bar','barclaycard','barclays','bargains','bayern','bb','bd','be','beer',
+'berlin','best','bf','bg','bh','bi','bid','bike','bingo','bio','biz','bj','black',
+'blackfriday','bloomberg','blue','bm','bmw','bn','bnpparibas','bo','boats','boo',
+'boutique','br','brussels','bs','bt','budapest','build','builders','business','buzz',
+'bv','bw','by','bz','bzh','ca','cab','cal','camera','camp','cancerresearch','canon',
+'capetown','capital','caravan','cards','care','career','careers','cartier','casa',
+'cash','casino','cat','catering','cbn','cc','cd','center','ceo','cern','cf','cg',
+'ch','channel','chat','cheap','christmas','chrome','church','ci','citic','city','ck',
+'cl','claims','cleaning','click','clinic','clothing','club','cm','cn','co','coach',
+'codes','coffee','college','cologne','com','community','company','computer','condos',
+'construction','consulting','contractors','cooking','cool','coop','country','courses',
+'cr','credit','creditcard','cricket','crs','cruises','cu','cuisinella','cv','cw','cx',
+'cy','cymru','cz','dabur','dad','dance','dating','day','dclk','de','deals','degree',
+'delivery','democrat','dental','dentist','desi','design','dev','diamonds','diet',
+'digital','direct','directory','discount','dj','dk','dm','dnp','do','docs','domains',
+'doosan','durban','dvag','dz','eat','ec','edu','education','ee','eg','email','emerck',
+'energy','engineer','engineering','enterprises','equipment','er','es','esq','estate',
+'et','eu','eurovision','eus','events','everbank','exchange','expert','exposed','fail',
+'fans','farm','fashion','feedback','fi','finance','financial','firmdale','fish',
+'fishing','fit','fitness','fj','fk','flights','florist','flowers','flsmidth','fly',
+'fm','fo','foo','football','forsale','foundation','fr','frl','frogans','fund',
+'furniture','futbol','ga','gal','gallery','garden','gb','gbiz','gd','gdn','ge','gent',
+'gf','gg','ggee','gh','gi','gift','gifts','gives','gl','glass','gle','global','globo',
+'gm','gmail','gmo','gmx','gn','goldpoint','goog','google','gop','gov','gp','gq','gr',
+'graphics','gratis','green','gripe','gs','gt','gu','guide','guitars','guru','gw','gy',
+'hamburg','hangout','haus','healthcare','help','here','hermes','hiphop','hiv','hk',
+'hm','hn','holdings','holiday','homes','horse','host','hosting','house','how','hr',
+'ht','hu','ibm','id','ie','ifm','il','im','immo','immobilien','in','industries','info',
+'ing','ink','institute','insure','int','international','investments','io','iq','ir',
+'irish','is','it','iwc','jcb','je','jetzt','jm','jo','jobs','joburg','jp','juegos',
+'kaufen','kddi','ke','kg','kh','ki','kim','kitchen','kiwi','km','kn','koeln','kp','kr',
+'krd','kred','kw','ky','kyoto','kz','la','lacaixa','land','lat','latrobe','lawyer',
+'lb','lc','lds','lease','legal','lgbt','li','lidl','life','lighting','limited','limo',
+'link','lk','loans','london','lotte','lotto','lr','ls','lt','ltda','lu','luxe','luxury',
+'lv','ly','ma','madrid','maison','management','mango','market','marketing','marriott',
+'mc','md','me','media','meet','melbourne','meme','memorial','menu','mg','mh','miami',
+'mil','mini','mk','ml','mm','mn','mo','mobi','moda','moe','monash','money','mormon',
+'mortgage','moscow','motorcycles','mov','mp','mq','mr','ms','mt','mu','museum','mv',
+'mw','mx','my','mz','na','nagoya','name','navy','nc','ne','net','network','neustar',
+'new','nexus','nf','ng','ngo','nhk','ni','nico','ninja','nl','no','np','nr','nra',
+'nrw','ntt','nu','nyc','nz','okinawa','om','one','ong','onl','ooo','org','organic',
+'osaka','otsuka','ovh','pa','paris','partners','parts','party','pe','pf','pg','ph',
+'pharmacy','photo','photography','photos','physio','pics','pictures','pink','pizza',
+'pk','pl','place','plumbing','pm','pn','pohl','poker','porn','post','pr','praxi',
+'press','pro','prod','productions','prof','properties','property','ps','pt','pub',
+'pw','py','qa','qpon','quebec','re','realtor','recipes','red','rehab','reise','reisen',
+'reit','ren','rentals','repair','report','republican','rest','restaurant','reviews',
+'rich','rio','rip','ro','rocks','rodeo','rs','rsvp','ru','ruhr','rw','ryukyu','sa',
+'saarland','sale','samsung','sarl','saxo','sb','sc','sca','scb','schmidt','school',
+'schule','schwarz','science','scot','sd','se','services','sew','sexy','sg','sh',
+'shiksha','shoes','shriram','si','singles','sj','sk','sky','sl','sm','sn','so',
+'social','software','sohu','solar','solutions','soy','space','spiegel','sr','st',
+'study','style','su','sucks','supplies','supply','support','surf','surgery','suzuki',
+'sv','sx','sy','sydney','systems','sz','taipei','tatar','tattoo','tax','tc','td',
+'technology','tel','temasek','tennis','tf','tg','th','tienda','tips','tires','tirol',
+'tj','tk','tl','tm','tn','to','today','tokyo','tools','top','toshiba','town','toys',
+'tr','trade','training','travel','trust','tt','tui','tv','tw','tz','ua','ug','uk',
+'university','uno','uol','us','uy','uz','va','vacations','vc','ve','vegas','ventures',
+'versicherung','vet','vg','vi','viajes','video','villas','vision','vlaanderen','vn',
+'vodka','vote','voting','voto','voyage','vu','wales','wang','watch','webcam','website',
+'wed','wedding','wf','whoswho','wien','wiki','williamhill','wme','work','works','world',
+'ws','wtc','wtf','xn--1qqw23a','xn--3bst00m','xn--3ds443g','xn--3e0b707e','xn--45brj9c',
+'xn--45q11c','xn--4gbrim','xn--55qw42g','xn--55qx5d','xn--6frz82g','xn--6qq986b3xl',
+'xn--80adxhks','xn--80ao21a','xn--80asehdb','xn--80aswg','xn--90a3ac','xn--90ais',
+'xn--b4w605ferd','xn--c1avg','xn--cg4bki','xn--clchc0ea0b2g2a9gcd','xn--czr694b',
+'xn--czrs0t','xn--czru2d','xn--d1acj3b','xn--d1alf','xn--fiq228c5hs','xn--fiq64b',
+'xn--fiqs8s','xn--fiqz9s','xn--flw351e','xn--fpcrj9c3d','xn--fzc2c9e2c','xn--gecrj9c',
+'xn--h2brj9c','xn--hxt814e','xn--i1b6b1a6a2e','xn--io0a7i','xn--j1amh','xn--j6w193g',
+'xn--kprw13d','xn--kpry57d','xn--kput3i','xn--l1acc','xn--lgbbat1ad8j','xn--mgb9awbf',
+'xn--mgba3a4f16a','xn--mgbaam7a8h','xn--mgbab2bd','xn--mgbayh7gpa','xn--mgbbh1a71e',
+'xn--mgbc0a9azcg','xn--mgberp4a5d4ar','xn--mgbx4cd0ab','xn--ngbc5azd','xn--node',
+'xn--nqv7f','xn--nqv7fs00ema','xn--o3cw4h','xn--ogbpf8fl','xn--p1acf','xn--p1ai',
+'xn--pgbs0dh','xn--q9jyb4c','xn--qcka1pmc','xn--rhqv96g','xn--s9brj9c','xn--ses554g',
+'xn--unup4y','xn--vermgensberater-ctb','xn--vermgensberatung-pwb','xn--vhquv',
+'xn--wgbh1c','xn--wgbl6a','xn--xhq521b','xn--xkc2al3hye2a','xn--xkc2dl3a5ee0h',
+'xn--yfro4i67o','xn--ygbi2ammx','xn--zfr164b','xxx','xyz','yachts','yandex','ye',
+'yodobashi','yoga','yokohama','youtube','yt','za','zip','zm','zone','zuerich','zw');
 
 // Special TLDs for testing and documentation purposes
 // http://tools.ietf.org/html/rfc2606#section-2

From 629cf835e9a5f8d64195dd69d726e7ff6c09e312 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marius=20Kie=C3=9Fling?= <Marius@Marius-Mac-mini.local>
Date: Sat, 7 Mar 2015 01:42:36 +0100
Subject: [PATCH 24/61] Fixed a tiny typo in german translation

---
 locale/de_DE/LC_MESSAGES/de.po | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/locale/de_DE/LC_MESSAGES/de.po b/locale/de_DE/LC_MESSAGES/de.po
index 5aae4c06e..1e32215ca 100644
--- a/locale/de_DE/LC_MESSAGES/de.po
+++ b/locale/de_DE/LC_MESSAGES/de.po
@@ -740,7 +740,7 @@ msgstr "Dieser Installer geht davon aus, dass von diesem Server aus auf eine Pow
 
 #: index.php:28
 msgid "The alternative for this installer is a manual installation. Refer to the poweradmin.org website if you want to go down that road."
-msgstr "Die ALternative zu diesem Installer ist die manuelle Installation. Folgen Sie in diesem Fall den entsprechenden Anweisungen auf der Webseite poweradmin.org."
+msgstr "Die Alternative zu diesem Installer ist die manuelle Installation. Folgen Sie in diesem Fall den entsprechenden Anweisungen auf der Webseite poweradmin.org."
 
 #: index.php:30
 msgid "Finally, if you see any errors during the installation process, a problem report would be appreciated. You can report problems (and ask for help) on the <a href=\"http://groups.google.com/group/poweradmin\" target=\"blank\">poweradmin</a> mailinglist."

From a956778e6157d037254c845f50a2cacfac1a61ef Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <edmondas@poweradmin.org>
Date: Tue, 5 May 2015 09:01:28 -0400
Subject: [PATCH 25/61] Minor visual improvement.

---
 install/index.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/install/index.php b/install/index.php
index 073a64cdb..ef576b728 100644
--- a/install/index.php
+++ b/install/index.php
@@ -69,6 +69,7 @@ function get_random_key() {
         echo "  <input type=\"radio\" name=\"language\" value=\"fr_FR\"> Je préfère continuer en français.<br>\n";
         echo "  <input type=\"radio\" name=\"language\" value=\"nb_NO\"> Jeg ønsker å forsette på norsk.<br>\n";
         echo "  <input type=\"hidden\" name=\"step\" value=\"" . $step . "\">";
+        echo "  <br>\n";
         echo "  <input type=\"submit\" name=\"submit\" value=\"" . _('Go to step') . " " . $step . "\">";
         echo " </form>\n";
         break;

From a1515093a10f4df05776eeb7a23470fdb5d693ce Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <edmondas@poweradmin.org>
Date: Tue, 5 May 2015 09:01:46 -0400
Subject: [PATCH 26/61] Removed trailing space.

---
 edit.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/edit.php b/edit.php
index 59c453b39..c6d750f5f 100644
--- a/edit.php
+++ b/edit.php
@@ -229,7 +229,7 @@
         }
         elseif ($r['type'] == "SOA" && $perm_content_edit != "all" || ($r['type'] == "NS" && $perm_content_edit == "own_as_client")) {
         	echo "     <td class=\"n\">&nbsp;</td>\n";
-        }        
+        }
         else {
             echo "     <td class=\"n\">\n";
             echo "      <a href=\"edit_record.php?id=" . $r['id'] . "&amp;domain=" . $zone_id . "\">

From e41c885c822f39d5ac41c4c211d710310abc9dd9 Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <edmondas@poweradmin.org>
Date: Tue, 5 May 2015 10:08:54 -0400
Subject: [PATCH 27/61] Removed undefined variable from logging.

---
 add_zone_slave.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/add_zone_slave.php b/add_zone_slave.php
index e43636a0a..081b4fd56 100644
--- a/add_zone_slave.php
+++ b/add_zone_slave.php
@@ -71,7 +71,7 @@
             success("<a href=\"edit.php?id=" . get_zone_id_from_name($zone) . "\">" . SUC_ZONE_ADD . '</a>');
             log_info(sprintf('client_ip:%s user:%s operation:add_zone zone:%s zone_type:SLAVE zone_master:%s',
                               $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"],
-                              $zone, $master, $zone_template));
+                              $zone, $master));
             unset($zone, $owner, $webip, $mailip, $empty, $type, $master);
         }
     }

From 3c289f49fdd96923b1d22b5d4f8195735c642340 Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <edmondas@poweradmin.org>
Date: Tue, 5 May 2015 10:43:25 -0400
Subject: [PATCH 28/61] Fixes #220 - Initialise array.

---
 inc/record.inc.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/inc/record.inc.php b/inc/record.inc.php
index 890b71da3..1c5c9495a 100644
--- a/inc/record.inc.php
+++ b/inc/record.inc.php
@@ -1596,6 +1596,8 @@ function sort_domain_results_by_ttl($a, $b) {
  */
 function get_users_from_domain_id($id) {
     global $db;
+    $owners = array();
+
     $sqlq = "SELECT owner FROM zones WHERE domain_id =" . $db->quote($id, 'integer');
     $id_owners = $db->query($sqlq);
     if ($id_owners) {

From 65090660c4cea14d9bc9af83fe41af38a34d8a74 Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <edmondas@poweradmin.org>
Date: Wed, 6 May 2015 06:08:07 -0400
Subject: [PATCH 29/61] Recompiled binary German translation file (required
 after changes in #229)

---
 locale/de_DE/LC_MESSAGES/messages.mo | Bin 31036 -> 31036 bytes
 1 file changed, 0 insertions(+), 0 deletions(-)

diff --git a/locale/de_DE/LC_MESSAGES/messages.mo b/locale/de_DE/LC_MESSAGES/messages.mo
index 5acef4c80df779ca616cfbc1184d0535a41686f5..92d534466e5548499a7898b5718199decbdb3d0c 100644
GIT binary patch
delta 16
Ycmdn<iE+;-#tm!27;`qS4eM6|07;t%<p2Nx

delta 16
Ycmdn<iE+;-#tm!27=1Rc4eM6|07%;h#Q*>R


From d7a9800a418e49b1422c4884a774ae61ad13dd66 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20Gr=C3=B6ger?= <jonas.groeger@noris.de>
Date: Mon, 29 Jun 2015 15:19:40 +0200
Subject: [PATCH 30/61] Update records only if they have been changed

Prior, for every zone change, all records in the database were
updated. This patch improves upon that so that only changed records
in a zone are updated in the database.

The zone comment is still unchecked. A new serial will be generated,
even if there is no record change.
---
 edit.php                | 38 +++++++++++++-----------
 inc/RecordLog.class.php | 64 +++++++++++++++++++++++++++++++++++++++++
 inc/error.inc.php       |  1 +
 3 files changed, 87 insertions(+), 16 deletions(-)
 create mode 100644 inc/RecordLog.class.php

diff --git a/edit.php b/edit.php
index c6d750f5f..dca2b1743 100644
--- a/edit.php
+++ b/edit.php
@@ -32,6 +32,7 @@
  */
 require_once("inc/toolkit.inc.php");
 include_once("inc/header.inc.php");
+include_once("inc/RecordLog.class.php");
 
 global $pdnssec_use;
 
@@ -48,28 +49,28 @@
 
 if (isset($_POST['commit'])) {
     $error = false;
+    $one_record_changed = false;
+
     if (isset($_POST['record'])) {
         foreach ($_POST['record'] as $record) {
             $old_record_info = get_record_from_id($record['rid']);
+
+            // Check if a record changed and save the state
+            $log = new RecordLog();
+            $log->log_prior($record['rid']);
+            if (!$log->has_changed($record)) {
+                continue;
+            } else {
+                $one_record_changed = true;
+            }
+
             $edit_record = edit_record($record);
             if (false === $edit_record) {
                 $error = true;
             } else {
-               $new_record_info = get_record_from_id($record["rid"]);
-               //Figure out if record was updated
-               unset($new_record_info["change_date"]);
-               unset($old_record_info["change_date"]);
-               if ($new_record_info != $old_record_info){
-                 //The record was changed, so log the edit_record operation
-                 log_info(sprintf('client_ip:%s user:%s operation:edit_record'
-                                  .' old_record_type:%s old_record:%s old_content:%s old_ttl:%s old_priority:%s'
-                                  .' record_type:%s record:%s content:%s ttl:%s priority:%s',
-                                  $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"],
-                              $old_record_info['type'], $old_record_info['name'],
-                              $old_record_info['content'], $old_record_info['ttl'], $old_record_info['prio'],
-                              $new_record_info['type'], $new_record_info['name'],
-                              $new_record_info['content'], $new_record_info['ttl'], $new_record_info['prio']));
-               }
+                // Log the state after saving and write it to logging table
+                $log->log_after($record['rid']);
+                $log->write();
             }
         }
     }
@@ -78,7 +79,12 @@
 
     if (false === $error) {
         update_soa_serial($_GET['id']);
-        success(SUC_ZONE_UPD);
+
+        if ($one_record_changed) {
+            success(SUC_ZONE_UPD);
+        } else {
+            success(SUC_ZONE_NOCHANGE);
+        }
 
         if ($pdnssec_use) {
             if (dnssec_rectify_zone($_GET['id'])) {
diff --git a/inc/RecordLog.class.php b/inc/RecordLog.class.php
new file mode 100644
index 000000000..c9ab55ed7
--- /dev/null
+++ b/inc/RecordLog.class.php
@@ -0,0 +1,64 @@
+<?php
+
+class RecordLog {
+
+    private $record_prior;
+    private $record_after;
+
+    private $record_changed = false;
+
+    public function log_prior($rid) {
+        $this->record_prior = $this->getRecord($rid);
+    }
+
+    public function log_after($rid) {
+        $this->record_after = $this->getRecord($rid);
+    }
+
+    private function getRecord($rid) {
+        return get_record_from_id($rid);
+    }
+
+    public function has_changed(array $record) {
+        // Arrays are assigned by copy.
+        // Copy arrays to avoid side effects caused by unset().
+        $record_copy = $record;
+        $record_prior_copy = $this->record_prior;
+
+        // Don't compare the 'change_date'
+        unset($record_copy["change_date"]);
+        unset($record_prior_copy["change_date"]);
+
+        // PowerDNS only searches for lowercase records
+        $record_copy['name'] = strtolower($record_copy['name']);
+        $record_prior_copy['name'] = strtolower($record_prior_copy['name']);
+
+        // Quotes are special for SPF and TXT
+        $type = $record_prior_copy['type'];
+        if ($type == "SPF" || $type == "TXT") {
+            $record_prior_copy['content'] = trim($record_prior_copy['content'], '"');
+            $record_copy['content'] = trim($record_copy['content'], '"');
+        }
+
+        // Make $record_copy and $record_prior_copy compatible
+        $record_copy['id'] = $record_copy['rid'];
+        $record_copy['domain_id'] = $record_copy['zid'];
+        unset($record_copy['zid']);
+        unset($record_copy['rid']);
+
+        // Do the comparison
+        $this->record_changed = ($record_copy != $record_prior_copy);
+        return $this->record_changed;
+    }
+
+    public function write() {
+        log_info(sprintf('client_ip:%s user:%s operation:edit_record'
+            . ' old_record_type:%s old_record:%s old_content:%s old_ttl:%s old_priority:%s'
+            . ' record_type:%s record:%s content:%s ttl:%s priority:%s',
+            $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"],
+            $this->record_prior['type'], $this->record_prior['name'],
+            $this->record_prior['content'], $this->record_prior['ttl'], $this->record_prior['prio'],
+            $this->record_after['type'], $this->record_after['name'],
+            $this->record_after['content'], $this->record_after['ttl'], $this->record_after['prio']));
+    }
+}
diff --git a/inc/error.inc.php b/inc/error.inc.php
index c26417cc7..0033ec4eb 100644
--- a/inc/error.inc.php
+++ b/inc/error.inc.php
@@ -130,6 +130,7 @@
 define("SUC_ZONE_DEL", _('Zone has been deleted successfully.'));
 define("SUC_ZONES_DEL", _('Zones have been deleted successfully.'));
 define("SUC_ZONE_UPD", _('Zone has been updated successfully.'));
+define("SUC_ZONE_NOCHANGE", _('Zone did not have any record changes.'));
 define("SUC_ZONES_UPD", _('Zones have been updated successfully.'));
 define("SUC_USER_UPD", _('The user has been updated successfully.'));
 define("SUC_USER_ADD", _('The user has been created successfully.'));

From 74e84197232b34c8c757b3bb7a16ac4f486134dd Mon Sep 17 00:00:00 2001
From: Keenan Tims <ktims@stargate.ca>
Date: Thu, 13 Aug 2015 10:53:41 -0700
Subject: [PATCH 31/61] Sort by length(name) is not sensible, sort by name
 DBMSs that don't support the natsort hack should revert to lexical sort
 Sorting by length first doesn't make sense as a fallback here, it causes
 sorting such that short domains appear first in the list which is not very
 intuitive or useful. Revert to a lexical sort in that case.

---
 inc/record.inc.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/inc/record.inc.php b/inc/record.inc.php
index 1c5c9495a..5a4c7af2d 100644
--- a/inc/record.inc.php
+++ b/inc/record.inc.php
@@ -1255,7 +1255,7 @@ function get_zones($perm, $userid = 0, $letterstart = 'all', $rowstart = 0, $row
         $sortby = 'domains.' . $sortby;
     }
 
-    $natural_sort = 'LENGTH(domains.name), domains.name';
+    $natural_sort = 'domains.name';
     if ($db_type == 'mysql' || $db_type == 'mysqli' || $db_type == 'sqlite' || $db_type == 'sqlite3') {
         $natural_sort = 'domains.name+0<>0 DESC, domains.name+0, domains.name';
     }
@@ -1431,7 +1431,7 @@ function get_records_from_domain_id($id, $rowstart = 0, $rowamount = 999999, $so
         } else {
             $db->setLimit($rowamount, $rowstart);
 
-            $natural_sort = 'LENGTH(records.name), records.name';
+            $natural_sort = 'records.name';
             if ($db_type == 'mysql' || $db_type == 'mysqli' || $db_type == 'sqlite' || $db_type == 'sqlite3') {
                 $natural_sort = 'records.name+0<>0 DESC, records.name+0, records.name';
             }

From 63396b5c38c7a4b6ddd7c8cc279af8d45e4cded1 Mon Sep 17 00:00:00 2001
From: Keenan Tims <ktims@stargate.ca>
Date: Thu, 13 Aug 2015 12:38:52 -0700
Subject: [PATCH 32/61] list_zones optimization & sort fixing Performance
 substantially improved for list_zones.php - Improve main get_zones() query to
 join instead of subselect and   also return DNSSEC state and zone owner.
 Tested with Postgres only. - Don't call 'pdnssec' from list_zones.php,
 instead use DNSSEC state   from get_zones. - Ditto for owner fullname - Also
 fixes DNSSEC state checking which was not working due to   checking pdnssec
 return code, which is '0' if the domain exists,   not related to DNSSEC state

---
 inc/record.inc.php | 41 ++++++++++++++++++++++++++++-------------
 list_zones.php     |  5 ++---
 2 files changed, 30 insertions(+), 16 deletions(-)

diff --git a/inc/record.inc.php b/inc/record.inc.php
index 1c5c9495a..4f444a3a0 100644
--- a/inc/record.inc.php
+++ b/inc/record.inc.php
@@ -1230,6 +1230,7 @@ function get_zones($perm, $userid = 0, $letterstart = 'all', $rowstart = 0, $row
     global $db;
     global $db_type;
     global $sql_regexp;
+    global $pdnssec_use;
 
     if ($letterstart == '_') {
         $letterstart = '\_';
@@ -1245,7 +1246,7 @@ function get_zones($perm, $userid = 0, $letterstart = 'all', $rowstart = 0, $row
 				AND zones.owner = " . $db->quote($userid, 'integer');
         }
         if ($letterstart != 'all' && $letterstart != 1) {
-            $sql_add .=" AND domains.name LIKE " . $db->quote($letterstart . "%", 'text') . " ";
+            $sql_add .=" AND substring(domains.name,1,1) = " . $db->quote($letterstart, 'text') . " ";
         } elseif ($letterstart == 1) {
             $sql_add .=" AND substring(domains.name,1,1) " . $sql_regexp . " '^[[:digit:]]'";
         }
@@ -1262,17 +1263,27 @@ function get_zones($perm, $userid = 0, $letterstart = 'all', $rowstart = 0, $row
     $sql_sortby = ($sortby == 'domains.name' ? $natural_sort : $sortby . ', ' . $natural_sort);
 
     $sqlq = "SELECT domains.id,
-			domains.name,
-			domains.type,
-			Record_Count.count_records
-			FROM domains
-			LEFT JOIN zones ON domains.id=zones.domain_id
-			LEFT JOIN (
-				SELECT COUNT(domain_id) AS count_records, domain_id FROM records WHERE type IS NOT NULL GROUP BY domain_id
-			) Record_Count ON Record_Count.domain_id=domains.id
-			WHERE 1=1" . $sql_add . "
-			GROUP BY domains.name, domains.id, domains.type, Record_Count.count_records
-			ORDER BY " . $sql_sortby;
+                        domains.name,
+                        domains.type,
+                        COUNT(records.id) AS count_records,
+                        users.fullname
+                        " . ($pdnssec_use ? ",COUNT(cryptokeys.id) > 0 OR COUNT(domainmetadata.id) > 0 AS secured" : "") . "
+                        FROM domains
+                        LEFT JOIN zones ON domains.id=zones.domain_id
+                        LEFT JOIN records ON records.domain_id=domains.id AND records.type IS NOT NULL
+                        LEFT JOIN users ON users.id=zones.owner
+        ";
+
+    if ($pdnssec_use) {
+        $sqlq .= "      LEFT JOIN cryptokeys ON domains.id = cryptokeys.domain_id AND cryptokeys.active
+                        LEFT JOIN domainmetadata ON domains.id = domainmetadata.domain_id AND domainmetadata.kind = 'PRESIGNED'
+            ";
+    }
+
+        $sqlq .= "
+                        WHERE 1=1" . $sql_add . "
+                        GROUP BY domains.name, domains.id, domains.type, users.fullname
+                        ORDER BY " . $sql_sortby;
 
     if ($letterstart != 'all') {
         $db->setLimit($rowamount, $rowstart);
@@ -1286,8 +1297,12 @@ function get_zones($perm, $userid = 0, $letterstart = 'all', $rowstart = 0, $row
             "id" => $r["id"],
             "name" => $r["name"],
             "type" => $r["type"],
-            "count_records" => $r["count_records"]
+            "count_records" => $r["count_records"],
+            "owner" => $r["fullname"],
         );
+        if ($pdnssec_use) {
+            $ret[$r["name"]]["secured"] = $r["secured"];
+        }
     }
     return $ret;
 }
diff --git a/list_zones.php b/list_zones.php
index 160b85bd0..eb1e9d7a6 100644
--- a/list_zones.php
+++ b/list_zones.php
@@ -122,7 +122,6 @@
             $zone['count_records'] = 0;
         }
 
-        $zone_owners = do_hook('get_fullnames_owners_from_domainid', $zone['id']);
         if ($iface_zonelist_serial)
             $serial = get_serial_by_zid($zone['id']);
 
@@ -144,7 +143,7 @@
         echo "          <td class=\"name\">" . $zone["name"] . "</td>\n";
         echo "          <td class=\"type\">" . strtolower($zone["type"]) . "</td>\n";
         echo "          <td class=\"count\">" . $zone["count_records"] . "</td>\n";
-        echo "          <td class=\"owner\">" . $zone_owners . "</td>\n";
+        echo "          <td class=\"owner\">" . $zone["owner"] . "</td>\n";
         if ($iface_zonelist_serial) {
             if ($serial != "") {
                 echo "          <td class=\"y\">" . $serial . "</td>\n";
@@ -153,7 +152,7 @@
             }
         }
         if ($pdnssec_use) {
-            echo "          <td class=\"dnssec\"><input type=\"checkbox\" onclick=\"return false\" " . (dnssec_is_zone_secured($zone['name']) ? 'checked' : '') . "></td>\n";
+            echo "          <td class=\"dnssec\"><input type=\"checkbox\" onclick=\"return false\" " . ($zone["secured"] ? 'checked' : '') . "></td>\n";
         }
         echo "           </tr>\n";
     }

From 7051a797bf6bf9611d01f2fd543d974dcceb9df7 Mon Sep 17 00:00:00 2001
From: Keenan Tims <ktims@stargate.ca>
Date: Thu, 13 Aug 2015 12:59:22 -0700
Subject: [PATCH 33/61] Implement is_zone_secured directly in SQL Instead of
 calling pdnssec, do it with SQL for security and performance

---
 inc/dnssec.inc.php | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

diff --git a/inc/dnssec.inc.php b/inc/dnssec.inc.php
index cc428e8ec..feeb82f8b 100644
--- a/inc/dnssec.inc.php
+++ b/inc/dnssec.inc.php
@@ -172,16 +172,19 @@ function dnssec_unsecure_zone($domain_name) {
  * @return boolean true on success, false on failure
  */
 function dnssec_is_zone_secured($domain_name) {
-    $call_result = dnssec_call_pdnssec('show-zone', $domain_name);
-    $output = $call_result[0];
-    $return_code = $call_result[1];
-
-    if ($return_code != 0) {
-        error(ERR_EXEC_PDNSSEC_SHOW_ZONE);
-        return false;
-    }
-
-    return (count($output) == 0 ? false : true);
+    global $db;
+    $query = $db->prepare("SELECT
+                  COUNT(cryptokeys.id) AS active_keys,
+                  COUNT(domainmetadata.id) > 0 AS presigned
+                  FROM domains
+                  LEFT JOIN cryptokeys ON domains.id = cryptokeys.domain_id
+                  LEFT JOIN domainmetadata ON domains.id = domainmetadata.domain_id AND domainmetadata.kind = 'PRESIGNED'
+                  WHERE domains.name = ?
+                  GROUP BY domains.id
+        ");
+    $query->execute(array($domain_name));
+    $row = $query->fetch();
+    return $row['active_keys'] > 0 || $row['presigned'];
 }
 
 /** Use presigned RRSIGs from storage

From 7517799e5465d9f3ae069cb2a74e6f8187daeb2d Mon Sep 17 00:00:00 2001
From: Keenan Tims <ktims@stargate.ca>
Date: Thu, 13 Aug 2015 14:12:48 -0700
Subject: [PATCH 34/61] Get records directly from DB instead of iterating Do a
 single query to get all record info - Old code called `get_record_from_id`
 for every record listed - No reason for this, improved the SQL to pull it all
 in one query

---
 inc/record.inc.php | 60 ++++++++++++++++++++++++++--------------------
 1 file changed, 34 insertions(+), 26 deletions(-)

diff --git a/inc/record.inc.php b/inc/record.inc.php
index 4f444a3a0..cde4bd417 100644
--- a/inc/record.inc.php
+++ b/inc/record.inc.php
@@ -1419,30 +1419,32 @@ function get_records_from_domain_id($id, $rowstart = 0, $rowamount = 999999, $so
     if (is_numeric($id)) {
         if ((isset($_SESSION[$id . "_ispartial"])) && ($_SESSION[$id . "_ispartial"] == 1)) {
             $db->setLimit($rowamount, $rowstart);
-            $result = $db->query("SELECT record_owners.record_id as id
-					FROM record_owners,domains,records
-					WHERE record_owners.user_id = " . $db->quote($_SESSION["userid"], 'integer') . "
-					AND record_owners.record_id = records.id
-					AND records.domain_id = " . $db->quote($id, 'integer') . "
-					GROUP BY record_owners.record_id ORDER BY records." . $sortby);
+            $result = $db->query("SELECT records.id, domains.id, records.name, records.type, records.content, records.ttl, records.prio, records.change_date
+                                    FROM record_owners,domains,records
+                                    WHERE record_owners.user_id = " . $db->quote($_SESSION["userid"], 'integer') . "
+                                    AND record_owners.record_id = records.id
+                                    AND records.domain_id = " . $db->quote($id, 'integer') . "
+                                    GROUP BY records.id, domains.id, records.name, records.type, records.content, records.ttl, records.prio, records.change_date
+                                    ORDER BY type = 'SOA' DESC, type = 'NS' DESC, records." . $sortby);
 
-            $ret = array();
             if ($result) {
-                $ret[] = array();
-                $retcount = 0;
                 while ($r = $result->fetchRow()) {
-                    // Call get_record_from_id for each row.
-                    $fields = get_record_from_id($r["id"]);
-                    if ($fields == -1) {
-                        continue;
-                    }
-                    $ret[$retcount] = $fields;
-                    $retcount++;
+                    $ret[] = array(
+                        "id" => $r["id"],
+                        "domain_id" => $r["domain_id"],
+                        "name" => $r["name"],
+                        "type" => $r["type"],
+                        "content" => $r["content"],
+                        "ttl" => $r["ttl"],
+                        "prio" => $r["prio"],
+                        "change_date" => $r["change_date"]
+                    );
                 }
                 $result = $ret;
             } else {
                 return -1;
             }
+
         } else {
             $db->setLimit($rowamount, $rowstart);
 
@@ -1452,24 +1454,30 @@ function get_records_from_domain_id($id, $rowstart = 0, $rowamount = 999999, $so
             }
             $sql_sortby = ($sortby == 'name' ? $natural_sort : $sortby . ', ' . $natural_sort);
 
-            $result = $db->query("SELECT id FROM records WHERE domain_id=" . $db->quote($id, 'integer') . " AND type IS NOT NULL ORDER BY " . $sql_sortby);
+            $result = $db->query("SELECT id, domain_id, name, type, content, ttl, prio, change_date
+                                    FROM records 
+                                    WHERE domain_id=" . $db->quote($id, 'integer') . " AND type IS NOT NULL
+                                    ORDER BY type = 'SOA' DESC, type = 'NS' DESC," . $sql_sortby);
+
             $ret = array();
             if ($result) {
-                $ret[] = array();
-                $retcount = 0;
                 while ($r = $result->fetchRow()) {
-                    // Call get_record_from_id for each row.
-                    $fields = get_record_from_id($r["id"]);
-                    if ($fields == -1) {
-                        continue;
-                    }
-                    $ret[$retcount] = $fields;
-                    $retcount++;
+                    $ret[] = array(
+                        "id" => $r["id"],
+                        "domain_id" => $r["domain_id"],
+                        "name" => $r["name"],
+                        "type" => $r["type"],
+                        "content" => $r["content"],
+                        "ttl" => $r["ttl"],
+                        "prio" => $r["prio"],
+                        "change_date" => $r["change_date"]
+                    );
                 }
                 $result = $ret;
             } else {
                 return -1;
             }
+
             $result = order_domain_results($result, $sortby);
             return $result;
         }

From ed1a51091b4593b0270f843159bc97a9168cdb3e Mon Sep 17 00:00:00 2001
From: Keenan Tims <ktims@stargate.ca>
Date: Thu, 13 Aug 2015 14:15:24 -0700
Subject: [PATCH 35/61] Query user permissions only once per pageload Get all
 permissions at the first request, cache for others - Was making an SQL query
 for every permissions checking request - Now grab all permissions for the
 user in a single query and   store them in a static cache for future requests

---
 .../users_local/users_local.plugin.php        | 47 +++++++------------
 1 file changed, 17 insertions(+), 30 deletions(-)

diff --git a/inc/plugins/users_local/users_local.plugin.php b/inc/plugins/users_local/users_local.plugin.php
index 46466b187..6f1b37219 100644
--- a/inc/plugins/users_local/users_local.plugin.php
+++ b/inc/plugins/users_local/users_local.plugin.php
@@ -34,7 +34,12 @@ function verify_permission_local($arg) {
         $permission = $arg;
     }
 
-    $permission = $arg;
+    static $cache = false;
+
+    if ($cache !== false) {
+        return array_key_exists('user_is_ueberuser', $cache) || array_key_exists($permission, $cache);
+    }
+
     global $db;
     if ((!isset($_SESSION ['userid'])) || (!is_object($db))) {
         return 0;
@@ -42,35 +47,17 @@ function verify_permission_local($arg) {
     // Set current user ID.
     $userid = $_SESSION ['userid'];
 
-    $query = 'SELECT id FROM perm_items WHERE name=' . $db->quote('user_is_ueberuser', 'text');
-    $ueberUserId = $db->queryOne($query);
-
-    // Find the template ID that this user has been assigned.
-    $query = "SELECT perm_templ
-			FROM users
-			WHERE id = " . $db->quote($userid, 'integer');
-    $templ_id = $db->queryOne($query);
-
-    // Does this user have ueberuser rights?
-    $query = "SELECT id
-			FROM perm_templ_items
-			WHERE templ_id = " . $db->quote($templ_id, 'integer') . "
-			AND perm_id = " . $ueberUserId;
-    if ($db->queryOne($query)) {
-        return true;
-    }
-
-    // Find the permission ID for the requested permission.
-    $query = "SELECT id
-			FROM perm_items
-			WHERE name = " . $db->quote($permission, 'text');
-    $perm_id = $db->queryOne($query);
-    // Check if the permission ID is assigned to the template ID.
-    $query = "SELECT id
-			FROM perm_templ_items
-			WHERE templ_id = " . $db->quote($templ_id, 'integer') . "
-			AND perm_id = " . $db->quote($perm_id, 'integer');
-    return ($db->queryOne($query) ? true : false);
+    $query = $db->prepare("SELECT
+        perm_items.name AS permission
+        FROM perm_templ_items
+        LEFT JOIN perm_items ON perm_items.id = perm_templ_items.perm_id
+        LEFT JOIN perm_templ ON perm_templ.id = perm_templ_items.templ_id
+        LEFT JOIN users ON perm_templ.id = users.perm_templ
+        WHERE users.id = ?");
+    $query->execute(array($userid));
+    $cache = $query->fetchAll(PDO::FETCH_COLUMN | PDO::FETCH_GROUP, 'permission');
+
+    return array_key_exists('user_is_ueberuser', $cache) || array_key_exists($permission, $cache);
 }
 
 /**

From 2a090ad8e71a9ea5b072290215007b04f2114a92 Mon Sep 17 00:00:00 2001
From: NTX <NTX@users.noreply.github.com>
Date: Thu, 20 Aug 2015 10:55:23 +0200
Subject: [PATCH 36/61] Update toolkit.inc.php

---
 inc/toolkit.inc.php | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/inc/toolkit.inc.php b/inc/toolkit.inc.php
index 4279b6845..b051daeb0 100644
--- a/inc/toolkit.inc.php
+++ b/inc/toolkit.inc.php
@@ -718,3 +718,18 @@ function logout($msg = "", $type = "") {
     auth($msg, $type);
     exit;
 }
+
+/** Matches end of string
+ * 
+ * Matches end of string (haystack) against another string (needle)
+ *
+ * @param string $needle
+ * @param string $haystack
+ * 
+ * @return true if ends with specified string, otherwise false
+ */
+function endsWith($needle, $haystack) {
+    $length = strlen($haystack);
+    $nLength = strlen($needle);
+    return $nLength <= $length && strncmp(substr($haystack, -$nLength), $needle, $nLength) === 0;
+}

From f400889c81e718a69d2c5c759a18676cddec0c94 Mon Sep 17 00:00:00 2001
From: NTX <NTX@users.noreply.github.com>
Date: Thu, 20 Aug 2015 11:01:36 +0200
Subject: [PATCH 37/61] Fix Record validation

Fixes wrong appeding of zone when name or zone contains slashes (e.g in PTR subnet records)
---
 inc/dns.inc.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/inc/dns.inc.php b/inc/dns.inc.php
index 697745a91..fe19561eb 100644
--- a/inc/dns.inc.php
+++ b/inc/dns.inc.php
@@ -46,7 +46,7 @@ function validate_input($rid, $zid, $type, &$content, &$name, &$prio, &$ttl) {
 
     $zone = get_zone_name_from_id($zid);    // TODO check for return
 
-    if (!(preg_match("/$zone$/i", $name))) {
+    if (!endsWith(strtolower($zone), strtolower($name))) {
         if (isset($name) && $name != "") {
             $name = $name . "." . $zone;
         } else {

From 43ff83f8bcdd3ddc0bcdb14db6047b01e624a9e5 Mon Sep 17 00:00:00 2001
From: Keenan Tims <ktims@stargate.ca>
Date: Mon, 24 Aug 2015 10:44:22 -0700
Subject: [PATCH 38/61] must delete domain record last to retain relational
 integrity

---
 inc/record.inc.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/inc/record.inc.php b/inc/record.inc.php
index 1c5c9495a..58fbde61c 100644
--- a/inc/record.inc.php
+++ b/inc/record.inc.php
@@ -2055,9 +2055,9 @@ function delete_domains($domains) {
                 }
 
                 $db->exec("DELETE FROM zones WHERE domain_id=" . $db->quote($id, 'integer'));
-                $db->exec("DELETE FROM domains WHERE id=" . $db->quote($id, 'integer'));
                 $db->exec("DELETE FROM records WHERE domain_id=" . $db->quote($id, 'integer'));
                 $db->query("DELETE FROM records_zone_templ WHERE domain_id=" . $db->quote($id, 'integer'));
+                $db->exec("DELETE FROM domains WHERE id=" . $db->quote($id, 'integer'));
             } else {
                 error(sprintf(ERR_INV_ARGC, "delete_domains", "id must be a number"));
                 $error = true;

From dbef02a243d20febce0d163ef962e5ecf8989285 Mon Sep 17 00:00:00 2001
From: Giorgio <giorgio@lardone.it>
Date: Tue, 22 Sep 2015 13:09:46 +0200
Subject: [PATCH 39/61] Update top level domains list to newest version

Updated on 2015092200 - 1061 TLDs - http://data.iana.org/TLD/tlds-alpha-by-domain.txt
---
 inc/toolkit.inc.php | 174 +++++++++++++++++++++++---------------------
 1 file changed, 92 insertions(+), 82 deletions(-)

diff --git a/inc/toolkit.inc.php b/inc/toolkit.inc.php
index 4279b6845..f86dcaa36 100644
--- a/inc/toolkit.inc.php
+++ b/inc/toolkit.inc.php
@@ -108,89 +108,99 @@
     define('RECORD_SORT_BY', "name");
 }
 
-// Updated on 2015022800 - 831 TLDs
+// Updated on 2015092200 - 1061 TLDs
 // http://data.iana.org/TLD/tlds-alpha-by-domain.txt
-$valid_tlds = array('abogado','ac','academy','accountants','active','actor','ad','adult','ae','aero',
-'af','ag','agency','ai','airforce','al','allfinanz','alsace','am','amsterdam','an',
-'android','ao','apartments','aq','aquarelle','ar','archi','army','arpa','as','asia',
-'associates','at','attorney','au','auction','audio','autos','aw','ax','axa','az','ba',
-'band','bank','bar','barclaycard','barclays','bargains','bayern','bb','bd','be','beer',
-'berlin','best','bf','bg','bh','bi','bid','bike','bingo','bio','biz','bj','black',
-'blackfriday','bloomberg','blue','bm','bmw','bn','bnpparibas','bo','boats','boo',
-'boutique','br','brussels','bs','bt','budapest','build','builders','business','buzz',
-'bv','bw','by','bz','bzh','ca','cab','cal','camera','camp','cancerresearch','canon',
-'capetown','capital','caravan','cards','care','career','careers','cartier','casa',
-'cash','casino','cat','catering','cbn','cc','cd','center','ceo','cern','cf','cg',
-'ch','channel','chat','cheap','christmas','chrome','church','ci','citic','city','ck',
-'cl','claims','cleaning','click','clinic','clothing','club','cm','cn','co','coach',
-'codes','coffee','college','cologne','com','community','company','computer','condos',
-'construction','consulting','contractors','cooking','cool','coop','country','courses',
-'cr','credit','creditcard','cricket','crs','cruises','cu','cuisinella','cv','cw','cx',
-'cy','cymru','cz','dabur','dad','dance','dating','day','dclk','de','deals','degree',
-'delivery','democrat','dental','dentist','desi','design','dev','diamonds','diet',
-'digital','direct','directory','discount','dj','dk','dm','dnp','do','docs','domains',
-'doosan','durban','dvag','dz','eat','ec','edu','education','ee','eg','email','emerck',
-'energy','engineer','engineering','enterprises','equipment','er','es','esq','estate',
-'et','eu','eurovision','eus','events','everbank','exchange','expert','exposed','fail',
-'fans','farm','fashion','feedback','fi','finance','financial','firmdale','fish',
-'fishing','fit','fitness','fj','fk','flights','florist','flowers','flsmidth','fly',
-'fm','fo','foo','football','forsale','foundation','fr','frl','frogans','fund',
-'furniture','futbol','ga','gal','gallery','garden','gb','gbiz','gd','gdn','ge','gent',
-'gf','gg','ggee','gh','gi','gift','gifts','gives','gl','glass','gle','global','globo',
-'gm','gmail','gmo','gmx','gn','goldpoint','goog','google','gop','gov','gp','gq','gr',
-'graphics','gratis','green','gripe','gs','gt','gu','guide','guitars','guru','gw','gy',
-'hamburg','hangout','haus','healthcare','help','here','hermes','hiphop','hiv','hk',
-'hm','hn','holdings','holiday','homes','horse','host','hosting','house','how','hr',
-'ht','hu','ibm','id','ie','ifm','il','im','immo','immobilien','in','industries','info',
-'ing','ink','institute','insure','int','international','investments','io','iq','ir',
-'irish','is','it','iwc','jcb','je','jetzt','jm','jo','jobs','joburg','jp','juegos',
-'kaufen','kddi','ke','kg','kh','ki','kim','kitchen','kiwi','km','kn','koeln','kp','kr',
-'krd','kred','kw','ky','kyoto','kz','la','lacaixa','land','lat','latrobe','lawyer',
-'lb','lc','lds','lease','legal','lgbt','li','lidl','life','lighting','limited','limo',
-'link','lk','loans','london','lotte','lotto','lr','ls','lt','ltda','lu','luxe','luxury',
-'lv','ly','ma','madrid','maison','management','mango','market','marketing','marriott',
-'mc','md','me','media','meet','melbourne','meme','memorial','menu','mg','mh','miami',
-'mil','mini','mk','ml','mm','mn','mo','mobi','moda','moe','monash','money','mormon',
-'mortgage','moscow','motorcycles','mov','mp','mq','mr','ms','mt','mu','museum','mv',
-'mw','mx','my','mz','na','nagoya','name','navy','nc','ne','net','network','neustar',
-'new','nexus','nf','ng','ngo','nhk','ni','nico','ninja','nl','no','np','nr','nra',
-'nrw','ntt','nu','nyc','nz','okinawa','om','one','ong','onl','ooo','org','organic',
-'osaka','otsuka','ovh','pa','paris','partners','parts','party','pe','pf','pg','ph',
-'pharmacy','photo','photography','photos','physio','pics','pictures','pink','pizza',
-'pk','pl','place','plumbing','pm','pn','pohl','poker','porn','post','pr','praxi',
-'press','pro','prod','productions','prof','properties','property','ps','pt','pub',
-'pw','py','qa','qpon','quebec','re','realtor','recipes','red','rehab','reise','reisen',
-'reit','ren','rentals','repair','report','republican','rest','restaurant','reviews',
-'rich','rio','rip','ro','rocks','rodeo','rs','rsvp','ru','ruhr','rw','ryukyu','sa',
-'saarland','sale','samsung','sarl','saxo','sb','sc','sca','scb','schmidt','school',
-'schule','schwarz','science','scot','sd','se','services','sew','sexy','sg','sh',
-'shiksha','shoes','shriram','si','singles','sj','sk','sky','sl','sm','sn','so',
-'social','software','sohu','solar','solutions','soy','space','spiegel','sr','st',
-'study','style','su','sucks','supplies','supply','support','surf','surgery','suzuki',
-'sv','sx','sy','sydney','systems','sz','taipei','tatar','tattoo','tax','tc','td',
-'technology','tel','temasek','tennis','tf','tg','th','tienda','tips','tires','tirol',
-'tj','tk','tl','tm','tn','to','today','tokyo','tools','top','toshiba','town','toys',
-'tr','trade','training','travel','trust','tt','tui','tv','tw','tz','ua','ug','uk',
-'university','uno','uol','us','uy','uz','va','vacations','vc','ve','vegas','ventures',
-'versicherung','vet','vg','vi','viajes','video','villas','vision','vlaanderen','vn',
-'vodka','vote','voting','voto','voyage','vu','wales','wang','watch','webcam','website',
-'wed','wedding','wf','whoswho','wien','wiki','williamhill','wme','work','works','world',
-'ws','wtc','wtf','xn--1qqw23a','xn--3bst00m','xn--3ds443g','xn--3e0b707e','xn--45brj9c',
-'xn--45q11c','xn--4gbrim','xn--55qw42g','xn--55qx5d','xn--6frz82g','xn--6qq986b3xl',
-'xn--80adxhks','xn--80ao21a','xn--80asehdb','xn--80aswg','xn--90a3ac','xn--90ais',
-'xn--b4w605ferd','xn--c1avg','xn--cg4bki','xn--clchc0ea0b2g2a9gcd','xn--czr694b',
-'xn--czrs0t','xn--czru2d','xn--d1acj3b','xn--d1alf','xn--fiq228c5hs','xn--fiq64b',
-'xn--fiqs8s','xn--fiqz9s','xn--flw351e','xn--fpcrj9c3d','xn--fzc2c9e2c','xn--gecrj9c',
-'xn--h2brj9c','xn--hxt814e','xn--i1b6b1a6a2e','xn--io0a7i','xn--j1amh','xn--j6w193g',
-'xn--kprw13d','xn--kpry57d','xn--kput3i','xn--l1acc','xn--lgbbat1ad8j','xn--mgb9awbf',
-'xn--mgba3a4f16a','xn--mgbaam7a8h','xn--mgbab2bd','xn--mgbayh7gpa','xn--mgbbh1a71e',
-'xn--mgbc0a9azcg','xn--mgberp4a5d4ar','xn--mgbx4cd0ab','xn--ngbc5azd','xn--node',
-'xn--nqv7f','xn--nqv7fs00ema','xn--o3cw4h','xn--ogbpf8fl','xn--p1acf','xn--p1ai',
-'xn--pgbs0dh','xn--q9jyb4c','xn--qcka1pmc','xn--rhqv96g','xn--s9brj9c','xn--ses554g',
-'xn--unup4y','xn--vermgensberater-ctb','xn--vermgensberatung-pwb','xn--vhquv',
-'xn--wgbh1c','xn--wgbl6a','xn--xhq521b','xn--xkc2al3hye2a','xn--xkc2dl3a5ee0h',
-'xn--yfro4i67o','xn--ygbi2ammx','xn--zfr164b','xxx','xyz','yachts','yandex','ye',
-'yodobashi','yoga','yokohama','youtube','yt','za','zip','zm','zone','zuerich','zw');
+$valid_tlds = array('aaa', 'abb', 'abbott', 'abogado', 'ac', 'academy', 'accenture', 'accountant', 'accountants',
+'aco', 'active', 'actor', 'ad', 'ads', 'adult', 'ae', 'aeg', 'aero', 'af', 'afl', 'ag', 'agency', 'ai', 'aig',
+'airforce', 'airtel', 'al', 'allfinanz', 'alsace', 'am', 'amica', 'amsterdam', 'android', 'ao', 'apartments',
+'app', 'aq', 'aquarelle', 'ar', 'archi', 'army', 'arpa', 'as', 'asia', 'associates', 'at', 'attorney', 'au',
+'auction', 'audio', 'auto', 'autos', 'aw', 'ax', 'axa', 'az', 'azure', 'ba', 'band', 'bank', 'bar', 'barcelona',
+'barclaycard', 'barclays', 'bargains', 'bauhaus', 'bayern', 'bb', 'bbc', 'bbva', 'bcn', 'bd', 'be', 'beer',
+'bentley', 'berlin', 'best', 'bet', 'bf', 'bg', 'bh', 'bharti', 'bi', 'bible', 'bid', 'bike', 'bing', 'bingo',
+'bio', 'biz', 'bj', 'black', 'blackfriday', 'bloomberg', 'blue', 'bm', 'bmw', 'bn', 'bnl', 'bnpparibas', 'bo',
+'boats', 'bond', 'boo', 'boots', 'boutique', 'br', 'bradesco', 'bridgestone', 'broker', 'brother', 'brussels',
+'bs', 'bt', 'budapest', 'build', 'builders', 'business', 'buzz', 'bv', 'bw', 'by', 'bz', 'bzh', 'ca', 'cab',
+'cafe', 'cal', 'camera', 'camp', 'cancerresearch', 'canon', 'capetown', 'capital', 'car', 'caravan', 'cards',
+'care', 'career', 'careers', 'cars', 'cartier', 'casa', 'cash', 'casino', 'cat', 'catering', 'cba', 'cbn', 'cc',
+'cd', 'ceb', 'center', 'ceo', 'cern', 'cf', 'cfa', 'cfd', 'cg', 'ch', 'chanel', 'channel', 'chat', 'cheap',
+'chloe', 'christmas', 'chrome', 'church', 'ci', 'cisco', 'citic', 'city', 'ck', 'cl', 'claims', 'cleaning',
+'click', 'clinic', 'clothing', 'cloud', 'club', 'cm', 'cn', 'co', 'coach', 'codes', 'coffee', 'college',
+'cologne', 'com', 'commbank', 'community', 'company', 'computer', 'condos', 'construction', 'consulting',
+'contractors', 'cooking', 'cool', 'coop', 'corsica', 'country', 'coupons', 'courses', 'cr', 'credit',
+'creditcard', 'cricket', 'crown', 'crs', 'cruises', 'csc', 'cu', 'cuisinella', 'cv', 'cw', 'cx', 'cy',
+'cymru', 'cyou', 'cz', 'dabur', 'dad', 'dance', 'date', 'dating', 'datsun', 'day', 'dclk', 'de', 'deals',
+'degree', 'delivery', 'delta', 'democrat', 'dental', 'dentist', 'desi', 'design', 'dev', 'diamonds', 'diet',
+'digital', 'direct', 'directory', 'discount', 'dj', 'dk', 'dm', 'dnp', 'do', 'docs', 'dog', 'doha', 'domains',
+'doosan', 'download', 'drive', 'durban', 'dvag', 'dz', 'earth', 'eat', 'ec', 'edu', 'education', 'ee', 'eg',
+'email', 'emerck', 'energy', 'engineer', 'engineering', 'enterprises', 'epson', 'equipment', 'er', 'erni',
+'es', 'esq', 'estate', 'et', 'eu', 'eurovision', 'eus', 'events', 'everbank', 'exchange', 'expert', 'exposed',
+'express', 'fage', 'fail', 'faith', 'family', 'fan', 'fans', 'farm', 'fashion', 'feedback', 'fi', 'film',
+'finance', 'financial', 'firmdale', 'fish', 'fishing', 'fit', 'fitness', 'fj', 'fk', 'flights', 'florist',
+'flowers', 'flsmidth', 'fly', 'fm', 'fo', 'foo', 'football', 'forex', 'forsale', 'forum', 'foundation', 'fr',
+'frl', 'frogans', 'fund', 'furniture', 'futbol', 'fyi', 'ga', 'gal', 'gallery', 'game', 'garden', 'gb', 'gbiz',
+'gd', 'gdn', 'ge', 'gea', 'gent', 'genting', 'gf', 'gg', 'ggee', 'gh', 'gi', 'gift', 'gifts', 'gives', 'giving',
+'gl', 'glass', 'gle', 'global', 'globo', 'gm', 'gmail', 'gmo', 'gmx', 'gn', 'gold', 'goldpoint', 'golf', 'goo',
+'goog', 'google', 'gop', 'gov', 'gp', 'gq', 'gr', 'graphics', 'gratis', 'green', 'gripe', 'group', 'gs', 'gt',
+'gu', 'guge', 'guide', 'guitars', 'guru', 'gw', 'gy', 'hamburg', 'hangout', 'haus', 'healthcare', 'help', 'here',
+'hermes', 'hiphop', 'hitachi', 'hiv', 'hk', 'hm', 'hn', 'hockey', 'holdings', 'holiday', 'homedepot', 'homes',
+'honda', 'horse', 'host', 'hosting', 'hoteles', 'hotmail', 'house', 'how', 'hr', 'hsbc', 'ht', 'hu', 'ibm',
+'icbc', 'ice', 'icu', 'id', 'ie', 'ifm', 'iinet', 'il', 'im', 'immo', 'immobilien', 'in', 'industries',
+'infiniti', 'info', 'ing', 'ink', 'institute', 'insure', 'int', 'international', 'investments', 'io',
+'ipiranga', 'iq', 'ir', 'irish', 'is', 'ist', 'istanbul', 'it', 'itau', 'iwc', 'java', 'jcb', 'je',
+'jetzt', 'jewelry', 'jlc', 'jll', 'jm', 'jo', 'jobs', 'joburg', 'jp', 'jprs', 'juegos', 'kaufen', 'kddi',
+'ke', 'kg', 'kh', 'ki', 'kim', 'kitchen', 'kiwi', 'km', 'kn', 'koeln', 'komatsu', 'kp', 'kr', 'krd', 'kred',
+'kw', 'ky', 'kyoto', 'kz', 'la', 'lacaixa', 'lancaster', 'land', 'lasalle', 'lat', 'latrobe', 'law', 'lawyer',
+'lb', 'lc', 'lds', 'lease', 'leclerc', 'legal', 'lexus', 'lgbt', 'li', 'liaison', 'lidl', 'life', 'lighting',
+'limited', 'limo', 'linde', 'link', 'live', 'lixil', 'lk', 'loan', 'loans', 'lol', 'london', 'lotte', 'lotto',
+'love', 'lr', 'ls', 'lt', 'ltda', 'lu', 'lupin', 'luxe', 'luxury', 'lv', 'ly', 'ma', 'madrid', 'maif', 'maison',
+'man', 'management', 'mango', 'market', 'marketing', 'markets', 'marriott', 'mba', 'mc', 'md', 'me', 'media',
+'meet', 'melbourne', 'meme', 'memorial', 'men', 'menu', 'mg', 'mh', 'miami', 'microsoft', 'mil', 'mini', 'mk',
+'ml', 'mm', 'mma', 'mn', 'mo', 'mobi', 'moda', 'moe', 'mom', 'monash', 'money', 'montblanc', 'mormon', 'mortgage',
+'moscow', 'motorcycles', 'mov', 'movie', 'movistar', 'mp', 'mq', 'mr', 'ms', 'mt', 'mtn', 'mtpc', 'mu', 'museum',
+'mv', 'mw', 'mx', 'my', 'mz', 'na', 'nadex', 'nagoya', 'name', 'navy', 'nc', 'ne', 'nec', 'net', 'netbank',
+'network', 'neustar', 'new', 'news', 'nexus', 'nf', 'ng', 'ngo', 'nhk', 'ni', 'nico', 'ninja', 'nissan', 'nl',
+'no', 'nokia', 'np', 'nr', 'nra', 'nrw', 'ntt', 'nu', 'nyc', 'nz', 'office', 'okinawa', 'om', 'omega', 'one',
+'ong', 'onl', 'online', 'ooo', 'oracle', 'orange', 'org', 'organic', 'osaka', 'otsuka', 'ovh', 'pa', 'page',
+'panerai', 'paris', 'partners', 'parts', 'party', 'pe', 'pet', 'pf', 'pg', 'ph', 'pharmacy', 'philips', 'photo',
+'photography', 'photos', 'physio', 'piaget', 'pics', 'pictet', 'pictures', 'pink', 'pizza', 'pk', 'pl', 'place',
+'play', 'plumbing', 'plus', 'pm', 'pn', 'pohl', 'poker', 'porn', 'post', 'pr', 'praxi', 'press', 'pro', 'prod',
+'productions', 'prof', 'properties', 'property', 'protection', 'ps', 'pt', 'pub', 'pw', 'py', 'qa', 'qpon',
+'quebec', 'racing', 're', 'realtor', 'realty', 'recipes', 'red', 'redstone', 'rehab', 'reise', 'reisen', 'reit',
+'ren', 'rent', 'rentals', 'repair', 'report', 'republican', 'rest', 'restaurant', 'review', 'reviews', 'rich',
+'ricoh', 'rio', 'rip', 'ro', 'rocks', 'rodeo', 'rs', 'rsvp', 'ru', 'ruhr', 'run', 'rw', 'ryukyu', 'sa', 'saarland',
+'sakura', 'sale', 'samsung', 'sandvik', 'sandvikcoromant', 'sanofi', 'sap', 'sarl', 'saxo', 'sb', 'sc', 'sca',
+'scb', 'schmidt', 'scholarships', 'school', 'schule', 'schwarz', 'science', 'scor', 'scot', 'sd', 'se', 'seat',
+'security', 'seek', 'sener', 'services', 'sew', 'sex', 'sexy', 'sg', 'sh', 'shiksha', 'shoes', 'show', 'shriram',
+'si', 'singles', 'site', 'sj', 'sk', 'ski', 'sky', 'skype', 'sl', 'sm', 'sn', 'sncf', 'so', 'soccer', 'social',
+'software', 'sohu', 'solar', 'solutions', 'sony', 'soy', 'space', 'spiegel', 'spreadbetting', 'sr', 'srl', 'st',
+'stada', 'starhub', 'statoil', 'stc', 'stcgroup', 'studio', 'study', 'style', 'su', 'sucks', 'supplies', 'supply',
+'support', 'surf', 'surgery', 'suzuki', 'sv', 'swatch', 'swiss', 'sx', 'sy', 'sydney', 'systems', 'sz', 'taipei',
+'tatamotors', 'tatar', 'tattoo', 'tax', 'taxi', 'tc', 'td', 'team', 'tech', 'technology', 'tel', 'telefonica',
+'temasek', 'tennis', 'tf', 'tg', 'th', 'thd', 'theater', 'theatre', 'tickets', 'tienda', 'tips', 'tires', 'tirol',
+'tj', 'tk', 'tl', 'tm', 'tn', 'to', 'today', 'tokyo', 'tools', 'top', 'toray', 'toshiba', 'tours', 'town', 'toyota',
+'toys', 'tr', 'trade', 'trading', 'training', 'travel', 'trust', 'tt', 'tui', 'tv', 'tw', 'tz', 'ua', 'ubs', 'ug',
+'uk', 'university', 'uno', 'uol', 'us', 'uy', 'uz', 'va', 'vacations', 'vc', 've', 'vegas', 'ventures',
+'versicherung', 'vet', 'vg', 'vi', 'viajes', 'video', 'villas', 'vin', 'vision', 'vista', 'vistaprint', 'viva',
+'vlaanderen', 'vn', 'vodka', 'vote', 'voting', 'voto', 'voyage', 'vu', 'wales', 'walter', 'wang', 'watch',
+'webcam', 'website', 'wed', 'wedding', 'weir', 'wf', 'whoswho', 'wien', 'wiki', 'williamhill', 'win', 'windows',
+'wine', 'wme', 'work', 'works', 'world', 'ws', 'wtc', 'wtf', 'xbox', 'xerox', 'xin', 'xn--11b4c3d', 'xn--1qqw23a',
+'xn--30rr7y', 'xn--3bst00m', 'xn--3ds443g', 'xn--3e0b707e', 'xn--3pxu8k', 'xn--42c2d9a', 'xn--45brj9c',
+'xn--45q11c', 'xn--4gbrim', 'xn--55qw42g', 'xn--55qx5d', 'xn--6frz82g', 'xn--6qq986b3xl', 'xn--80adxhks',
+'xn--80ao21a', 'xn--80asehdb', 'xn--80aswg', 'xn--90a3ac', 'xn--90ais', 'xn--9dbq2a', 'xn--9et52u',
+'xn--b4w605ferd', 'xn--c1avg', 'xn--c2br7g', 'xn--cg4bki', 'xn--clchc0ea0b2g2a9gcd', 'xn--czr694b',
+'xn--czrs0t', 'xn--czru2d', 'xn--d1acj3b', 'xn--d1alf', 'xn--efvy88h', 'xn--estv75g', 'xn--fhbei',
+'xn--fiq228c5hs', 'xn--fiq64b', 'xn--fiqs8s', 'xn--fiqz9s', 'xn--fjq720a', 'xn--flw351e', 'xn--fpcrj9c3d',
+'xn--fzc2c9e2c', 'xn--gecrj9c', 'xn--h2brj9c', 'xn--hxt814e', 'xn--i1b6b1a6a2e', 'xn--imr513n', 'xn--io0a7i',
+'xn--j1aef', 'xn--j1amh', 'xn--j6w193g', 'xn--kcrx77d1x4a', 'xn--kprw13d', 'xn--kpry57d', 'xn--kput3i',
+'xn--l1acc', 'xn--lgbbat1ad8j', 'xn--mgb9awbf', 'xn--mgba3a4f16a', 'xn--mgbaam7a8h', 'xn--mgbab2bd',
+'xn--mgbayh7gpa', 'xn--mgbbh1a71e', 'xn--mgbc0a9azcg', 'xn--mgberp4a5d4ar', 'xn--mgbpl2fh', 'xn--mgbx4cd0ab',
+'xn--mk1bu44c', 'xn--mxtq1m', 'xn--ngbc5azd', 'xn--node', 'xn--nqv7f', 'xn--nqv7fs00ema', 'xn--nyqy26a',
+'xn--o3cw4h', 'xn--ogbpf8fl', 'xn--p1acf', 'xn--p1ai', 'xn--pgbs0dh', 'xn--pssy2u', 'xn--q9jyb4c',
+'xn--qcka1pmc', 'xn--rhqv96g', 'xn--s9brj9c', 'xn--ses554g', 'xn--t60b56a', 'xn--tckwe', 'xn--unup4y',
+'xn--vermgensberater-ctb', 'xn--vermgensberatung-pwb', 'xn--vhquv', 'xn--vuq861b', 'xn--wgbh1c',
+'xn--wgbl6a', 'xn--xhq521b', 'xn--xkc2al3hye2a', 'xn--xkc2dl3a5ee0h', 'xn--y9a3aq', 'xn--yfro4i67o',
+'xn--ygbi2ammx', 'xn--zfr164b', 'xperia', 'xxx', 'xyz', 'yachts', 'yandex', 'ye', 'yodobashi', 'yoga',
+'yokohama', 'youtube', 'yt', 'za', 'zip', 'zm', 'zone', 'zuerich', 'zw');
 
 // Special TLDs for testing and documentation purposes
 // http://tools.ietf.org/html/rfc2606#section-2

From 1a4198b48ffbe4ee3b27c0db34acabe9cdb78b28 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alexander=20Finkh=C3=A4user?= <alex@elaon.de>
Date: Tue, 22 Sep 2015 21:13:09 +0200
Subject: [PATCH 40/61] fix srv error messages

---
 inc/error.inc.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/inc/error.inc.php b/inc/error.inc.php
index 0033ec4eb..fdd110480 100644
--- a/inc/error.inc.php
+++ b/inc/error.inc.php
@@ -110,8 +110,8 @@
 define("ERR_DNS_INV_TTL", _('Invalid value for TTL field. It should be numeric.'));
 define("ERR_DNS_INV_PRIO", _('Invalid value for prio field. It should be numeric.'));
 define("ERR_DNS_SRV_NAME", _('Invalid value for name field of SRV record.'));
-define("ERR_DNS_SRV_WGHT", _('Invalid value for the priority field of the SRV record.'));
-define("ERR_DNS_SRV_PORT", _('Invalid value for the weight field of the SRV record.'));
+define("ERR_DNS_SRV_PORT", _('Invalid value for the port field of the SRV record.'));
+define("ERR_DNS_SRV_WGHT", _('Invalid value for the weight field of the SRV record.'));
 define("ERR_DNS_SRV_TRGT", _('Invalid SRV target.'));
 define("ERR_DNS_PRINTABLE", _('Invalid characters have been used in this record.'));
 

From 944d16c83b49ea1369fdae73052d40e4b0b71917 Mon Sep 17 00:00:00 2001
From: Keenan Tims <ktims@stargate.ca>
Date: Wed, 25 Nov 2015 10:56:59 -0800
Subject: [PATCH 41/61] Delete domain last in delete_domain For referential
 integrity

---
 inc/record.inc.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/inc/record.inc.php b/inc/record.inc.php
index 58fbde61c..e320764f6 100644
--- a/inc/record.inc.php
+++ b/inc/record.inc.php
@@ -831,9 +831,9 @@ function delete_domain($id) {
     if ($perm_edit == "all" || ( $perm_edit == "own" && $user_is_zone_owner == "1")) {
         if (is_numeric($id)) {
             $db->query("DELETE FROM zones WHERE domain_id=" . $db->quote($id, 'integer'));
-            $db->query("DELETE FROM domains WHERE id=" . $db->quote($id, 'integer'));
             $db->query("DELETE FROM records WHERE domain_id=" . $db->quote($id, 'integer'));
             $db->query("DELETE FROM records_zone_templ WHERE domain_id=" . $db->quote($id, 'integer'));
+            $db->query("DELETE FROM domains WHERE id=" . $db->quote($id, 'integer'));
             return true;
         } else {
             error(sprintf(ERR_INV_ARGC, "delete_domain", "id must be a number"));

From 09f6c18f3f24a4e3eaf5cdd3a94c0f0f50091b57 Mon Sep 17 00:00:00 2001
From: Bernd Bestel <bernd@berrnd.de>
Date: Mon, 28 Dec 2015 16:32:33 +0100
Subject: [PATCH 42/61] "sqlite" DB type was missing in dynamic_update.php

---
 dynamic_update.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dynamic_update.php b/dynamic_update.php
index 345d6b3de..f9fcfc720 100644
--- a/dynamic_update.php
+++ b/dynamic_update.php
@@ -45,7 +45,7 @@
 function safe($value) {
     global $db, $db_type;
 
-    if ($db_type == 'mysql') {
+    if ($db_type == 'mysql' || $db_type == 'sqlite') {
         $value = $db->quote($value, 'text');
         $value = substr($value, 1, -1); // remove quotes
     } elseif ($db_type == 'pgsql') {

From 34ce6f2d5865a21e5251303251ac38e3eb534d84 Mon Sep 17 00:00:00 2001
From: Aleksey Kuzmin <Aleksey.Kuzmin@rt.ru>
Date: Thu, 25 Feb 2016 14:55:00 +0300
Subject: [PATCH 43/61] hide inaccessible zone letters at "List zones" page

---
 inc/toolkit.inc.php | 11 ++++++-----
 list_zones.php      |  4 ++--
 2 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/inc/toolkit.inc.php b/inc/toolkit.inc.php
index 4279b6845..ce5ce8ae7 100644
--- a/inc/toolkit.inc.php
+++ b/inc/toolkit.inc.php
@@ -366,11 +366,11 @@ function show_pages($amount, $rowamount, $id = '') {
  * Display the alphabetic option: [0-9] [a] [b] .. [z]
  *
  * @param string $letterstart Starting letter/number or 'all'
- * @param boolean $userid unknown usage
+ * @param int $userid Current user ID
  *
  * @return null
  */
-function show_letters($letterstart, $userid = true) {
+function show_letters($letterstart, $userid) {
     echo _('Show zones beginning with') . ":<br>";
 
     $letter = "[[:digit:]]";
@@ -410,11 +410,11 @@ function show_letters($letterstart, $userid = true) {
 /** Check if any zones start with letter
  *
  * @param string $letter Starting Letter
- * @param boolean $userid unknown usage
+ * @param int $userid Current user ID
  *
  * @return int 1 if rows found, 0 otherwise
  */
-function zone_letter_start($letter, $userid = true) {
+function zone_letter_start($letter, $userid) {
     global $db;
     global $sql_regexp;
     $query = "SELECT
@@ -423,7 +423,8 @@ function zone_letter_start($letter, $userid = true) {
 			domains.name AS domainname
 			FROM domains
 			LEFT JOIN zones ON domains.id=zones.domain_id
-			WHERE substring(domains.name,1,1) " . $sql_regexp . " " . $db->quote("^" . $letter, 'text');
+			WHERE zones.owner = " . $userid . "
+			AND substring(domains.name,1,1) " . $sql_regexp . " " . $db->quote("^" . $letter, 'text');
     $db->setLimit(1);
     $result = $db->queryOne($query);
     return ($result ? 1 : 0);
diff --git a/list_zones.php b/list_zones.php
index 160b85bd0..3ed16395b 100644
--- a/list_zones.php
+++ b/list_zones.php
@@ -73,7 +73,7 @@
 } elseif (($count_zones_view > $iface_rowamount && $count_zones_all_letterstart == "0") || $count_zones_view == 0) {
     if ($count_zones_view > $iface_rowamount) {
         echo "<div class=\"showmax\">";
-        show_letters(LETTERSTART);
+        show_letters(LETTERSTART, $_SESSION["userid"]);
         echo "</div>";
     }
     echo "     <p>" . _('There are no zones to show in this listing.') . "</p>\n";
@@ -86,7 +86,7 @@
 
     if ($count_zones_view > $iface_rowamount) {
         echo "<div class=\"showmax\">";
-        show_letters(LETTERSTART);
+        show_letters(LETTERSTART, $_SESSION["userid"]);
         echo "</div>";
     }
     echo "     <form method=\"post\" action=\"delete_domains.php\">\n";

From efed1aa0e8c070d5229d9be7d25a578da5a6df8f Mon Sep 17 00:00:00 2001
From: Sebastian Sellmeier <sebastian@sellmeier.me>
Date: Fri, 26 Feb 2016 00:09:50 +0100
Subject: [PATCH 44/61] Overworked "search.php" & search-function in
 "record.inc.php".

---
 inc/record.inc.php | 205 +++++++++++++-------------------
 search.php         | 284 ++++++++++++++++++++-------------------------
 2 files changed, 207 insertions(+), 282 deletions(-)

diff --git a/inc/record.inc.php b/inc/record.inc.php
index 1c5c9495a..fec5780b6 100644
--- a/inc/record.inc.php
+++ b/inc/record.inc.php
@@ -1617,145 +1617,102 @@ function get_users_from_domain_id($id) {
 /** Search for Zone or Record
  *
  * @param string $search_string  String to search
- * @param string $perm User permitted to view 'all' or 'own' zones
- * @param string $zone_sortby Column to sort domain results [default='name']
- * @param string $record_sortby Column to sort record results by [default='name']
- * @param boolean $wildcards Add wildcards automatically
- * @param boolean $arpa Search reverse records automatically
+ * @param string $permission_view User permitted to view 'all' or 'own' zones
+ * @param string $sort_zones_by Column to sort domain results [default='name']
+ * @param string $sort_records_by Column to sort record results by [default='name']
+ * @param boolean $wildcard Add wildcards automatically
+ * @param boolean $reverse Search reverse records automatically
  *
  * @return mixed[] 'zones' => array of zones, 'records' => array of records
  */
-function search_zone_and_record($search_string, $perm, $zone_sortby = 'name', $record_sortby = 'name', $wildcards = true, $arpa = true) {
+function search_zone_and_record($search_string, $permission_view, $sort_zones_by = 'name', $sort_records_by = 'name', $wildcard = true, $reverse = true) {
     global $db;
 
-    $search_string = trim($search_string);
+    $return = array('zones' => [], 'records' => []);
 
-    $sql_add_from = '';
-    $sql_add_where = '';
-    $arpa_search = '';
-
-    $return_zones = array();
-    $return_records = array();
-
-    if (do_hook('verify_permission' , 'zone_content_view_others' )) {
-        $perm_view = "all";
-    } elseif (do_hook('verify_permission' , 'zone_content_view_own' )) {
-        $perm_view = "own";
-    } else {
-        $perm_view = "none";
-    }
-    
-    //redundant?
-    if (do_hook('verify_permission' , 'zone_content_edit_others' )) {
-        $perm_content_edit = "all";
-    } elseif (do_hook('verify_permission' , 'zone_content_edit_own' )) {
-        $perm_content_edit = "own";
-    } elseif (do_hook('verify_permission' , 'zone_content_edit_own_as_client' )) {
-    	$perm_content_edit = "own_as_client";
-    }else {
-        $perm_content_edit = "none";
-    }
-
-    if ($perm == "all") {
-        $sql_add_from = ", zones, users ";
-        $sql_add_where = " AND zones.domain_id = domains.id AND users.id = " . $db->quote($_SESSION['userid'], 'integer');
-    }
-
-    if ($perm == "own") {
-        $sql_add_from = ", zones, users ";
-        $sql_add_where = " AND zones.domain_id = domains.id AND users.id = " . $db->quote($_SESSION['userid'], 'integer') . " AND zones.owner = " . $db->quote($_SESSION['userid'], 'integer');
-    }
-
-
-    if ($arpa) {
-        if (preg_match("/^[0-9\.]+$/", $search_string)) {
-            $quads = explode('.', $search_string);
-            $arpa_search = join('.', array_reverse($quads));
-        }
-        if (preg_match("/^[0-9a-f]{0,4}:([0-9a-f]{0,4}:){0,6}[0-9a-f]{0,4}$/i", $search_string)) {
-            //TODO ipv6 search
-        }
-    }
-
-    $query = "SELECT
-			domains.id AS zid,
-			domains.name AS name,
-			domains.type AS type,
-			domains.master AS master,
-                        zones.owner AS owner
-			FROM domains" . $sql_add_from . "
-			WHERE " . ($arpa_search ? "(" : "") .
-            " domains.name LIKE " . $db->quote(($wildcards ? "%" : "") . $search_string . ($wildcards ? "%" : ""), 'text')
-            . ($arpa_search ? " OR domains.name LIKE " . $db->quote("%" . $arpa_search . "%in-addr.arpa", 'text') . ")" : "")
-            . $sql_add_where . "
-                        ORDER BY " . $zone_sortby;
-
-    $response = $db->query($query);
-    if (PEAR::isError($response)) {
-        error($response->getMessage());
-        return false;
-    }
-
-    $cached_owners = array();
-    while ($r = $response->fetchRow()) {
-        $owner = '';
-        if (isset($cached_owners[$r['owner']])) {
-            $owner = $cached_owners[$r['owner']];
+    if ($reverse) {
+        if (filter_var($search_string, FILTER_FLAG_IPV4)) {
+            $reverse_search_string = implode('.', array_reverse(explode('.', $search_string)));
+        } elseif (filter_var($search_string, FILTER_FLAG_IPV6)) {
+            $reverse_search_string = unpack('H*hex', inet_pton($search_string));
+            $reverse_search_string = implode('.', array_reverse(str_split($reverse_search_string['hex'])));
         } else {
-            $owner = do_hook('get_owner_from_id' , $r['owner'] );
-            $cached_owners[$r['owner']] = $owner;
+            $reverse = false;
+            $reverse_search_string = '';
         }
 
-        $return_zones[] = array(
-            "zid" => $r['zid'],
-            "name" => $r['name'],
-            "type" => $r['type'],
-            "master" => $r['master'],
-            "owner" => $owner);
-    }
-
-    $sql_add_from = '';
-    $sql_add_where = '';
-
-    // Search for matching records
-
-    if ($perm == "own") {
-        $sql_add_from = ", zones ";
-        $sql_add_where = " AND zones.domain_id = records.domain_id AND zones.owner = " . $db->quote($_SESSION['userid'], 'integer');
+        $reverse_search_string = $db->quote('%' . $reverse_search_string . '%', 'text');
+    }
+
+    $search_string = ($wildcard ? '%' : '') . trim($search_string) . ($wildcard ? '%' : '');
+
+    $zonesQuery = '
+        SELECT
+            domains.id,
+            domains.name,
+            domains.type,
+            z.id as zone_id,
+            z.domain_id,
+            z.owner,
+            u.id as user_id,
+            u.fullname,
+            record_count.count_records
+        FROM
+            domains
+        LEFT JOIN zones z on domains.id = z.domain_id
+        LEFT JOIN users u on z.owner = u.id
+        LEFT JOIN (SELECT COUNT(domain_id) AS count_records, domain_id FROM records WHERE type IS NOT NULL GROUP BY domain_id) record_count ON record_count.domain_id=domains.id
+        WHERE
+            (domains.name LIKE ' . $db->quote($search_string, 'text') .
+            ($reverse ? ' OR domains.name LIKE ' . $reverse_search_string : '') . ') ' .
+            ($permission_view == 'own' ? ' AND z.owner = ' . $db->quote($_SESSION['userid'], 'integer') : '') .
+        ' ORDER BY ' . $sort_zones_by;
+
+    $zonesResponse = $db->query($zonesQuery);
+    if (PEAR::isError($zonesResponse)) {
+        error($zonesResponse->getMessage());
+        return false;
     }
 
-    $query = "SELECT
-			records.id AS rid,
-			records.name AS name,
-			records.type AS type,
-			records.content AS content,
-			records.ttl AS ttl,
-			records.prio AS prio,
-			records.domain_id AS zid
-			FROM records" . $sql_add_from . "
-			WHERE (records.name LIKE " . $db->quote(($wildcards ? "%" : "") . $search_string . ($wildcards ? "%" : ""), 'text') . " OR records.content LIKE " . $db->quote(($wildcards ? "%" : "") . $search_string . ($wildcards ? "%" : ""), 'text')
-            . ($arpa_search ? " OR records.name LIKE " . $db->quote("%" . $arpa_search . "%in-addr.arpa", 'text') : "")
-            . ")"
-            . $sql_add_where . "
-			ORDER BY " . $record_sortby;
-
-    $response = $db->query($query);
-    if (PEAR::isError($response)) {
-        error($response->getMessage());
+    while($zone = $zonesResponse->fetchRow()) {
+        $return['zones'][] = $zone;
+    }
+
+
+    $recordsQuery = '
+        SELECT
+            records.id,
+            records.domain_id,
+            records.name,
+            records.type,
+            records.content,
+            records.ttl,
+            records.prio,
+            z.id as zone_id,
+            z.owner,
+            u.id as user_id,
+            u.fullname
+        FROM
+            records
+        LEFT JOIN zones z on records.domain_id = z.domain_id
+        LEFT JOIN users u on z.owner = u.id
+        WHERE
+            (records.name LIKE ' . $db->quote($search_string, 'text') . ' OR records.content LIKE ' . $db->quote($search_string, 'text') .
+            ($reverse ? ' OR records.name LIKE ' . $reverse_search_string . ' OR records.content LIKE ' . $reverse_search_string : '') . ')' .
+            ($permission_view == 'own' ? 'AND z.owner = ' . $db->quote($_SESSION['userid'], 'integer') : '') .
+        ' ORDER BY ' . $sort_records_by;
+
+    $recordsResponse = $db->query($recordsQuery);
+    if (PEAR::isError($recordsResponse)) {
+        error($recordsResponse->getMessage());
         return false;
     }
 
-    while ($r = $response->fetchRow()) {
-        $return_records[] = array(
-            "rid" => $r['rid'],
-            "name" => $r['name'],
-            "type" => $r['type'],
-            "content" => $r['content'],
-            "ttl" => $r['ttl'],
-            "zid" => $r['zid'],
-            "prio" => $r['prio']);
+    while($record = $recordsResponse->fetchRow()) {
+        $return['records'][] = $record;
     }
-    return array('zones' => $return_zones, 'records' => $return_records);
+
+    return $return;
 }
 
 /** Get Domain Type for Domain ID
diff --git a/search.php b/search.php
index 09db84b74..55e53163a 100644
--- a/search.php
+++ b/search.php
@@ -29,166 +29,134 @@
  * @copyright   2010-2014 Poweradmin Development Team
  * @license     http://opensource.org/licenses/GPL-3.0 GPL
  */
-require_once('inc/toolkit.inc.php');
-include_once('inc/header.inc.php');
 
-if (!(do_hook('verify_permission', 'search'))) {
+error_reporting(E_ALL);
+ini_set('display_errors', 1);
+
+require_once 'inc/toolkit.inc.php';
+require_once 'inc/header.inc.php';
+
+if (!do_hook('verify_permission', 'search')) {
     error(ERR_PERM_SEARCH);
-    include_once('inc/footer.inc.php');
-    exit;
-} else {
-    echo "     <h2>" . _('Search zones and records') . "</h2>\n";
-    $holy_grail = '';
-    if (isset($_POST['query'])) {
-
-        if (do_hook('verify_permission', 'zone_content_view_others')) {
-            $perm_view = "all";
-        } elseif (do_hook('verify_permission', 'zone_content_view_own')) {
-            $perm_view = "own";
-        } else {
-            $perm_view = "none";
-        }
-
-        if (do_hook('verify_permission', 'zone_content_edit_others')) {
-            $perm_edit = "all";
-        } elseif (do_hook('verify_permission', 'zone_content_edit_own')) {
-            $perm_edit = "own";
-        } else {
-            $perm_edit = "none";
-        }
-
-        $holy_grail = $_POST['query'];
-        $wildcards = ($_POST['wildcards'] == "true" ? true : false);
-        $arpa = ($_POST['arpa'] == "true" ? true : false);
-
-        $result = search_zone_and_record($holy_grail, $perm_view, ZONE_SORT_BY, RECORD_SORT_BY, $wildcards, $arpa);
-
-        if (is_array($result['zones'])) {
-            echo "     <script language=\"JavaScript\" type=\"text/javascript\">\n";
-            echo "     <!--\n";
-            echo "     function zone_sort_by ( sortbytype )\n";
-            echo "     {\n";
-            echo "       document.sortby_zone_form.zone_sort_by.value = sortbytype ;\n";
-            echo "       document.sortby_zone_form.submit() ;\n";
-            echo "     }\n";
-            echo "     -->\n";
-            echo "     </script>\n";
-            echo "     <form name=\"sortby_zone_form\" method=\"post\" action=\"search.php\">\n";
-            echo "     <input type=\"hidden\" name=\"query\" value=\"" . $_POST['query'] . "\" />\n";
-            echo "     <input type=\"hidden\" name=\"zone_sort_by\" />\n";
-            echo "     <h3>" . _('Zones found') . ":</h3>\n";
-            echo "     <table>\n";
-            echo "      <tr>\n";
-            echo "       <th>&nbsp;</th>\n";
-            echo "       <th><a href=\"javascript:zone_sort_by('name')\">" . _('Name') . "</a></th>\n";
-            echo "       <th><a href=\"javascript:zone_sort_by('type')\">" . _('Type') . "</a></th>\n";
-            echo "       <th><a href=\"javascript:zone_sort_by('master')\">" . _('Master') . "</a></th>\n";
-            /* If user has all edit permissions show zone owners */
-            if ($perm_edit == "all") {
-                echo "	     <th><a href=\"javascript:zone_sort_by('owner')\">" . _('Owner') . "</a></th>\n";
-            }
-
-            echo "      </tr>\n";
-            echo "      </form>\n";
-
-            foreach ($result['zones'] as $zone) {
-                echo "      <tr>\n";
-                echo "          <td>\n";
-                echo "           <a href=\"edit.php?name=" . $zone['name'] . "&id=" . $zone['zid'] . "\"><img src=\"images/edit.gif\" title=\"" . _('Edit zone') . " " . $zone['name'] . "\" alt=\"[ " . _('Edit zone') . " " . $zone['name'] . " ]\"></a>\n";
-                if ($perm_edit != "all" || $perm_edit != "none") {
-                    $user_is_zone_owner = do_hook('verify_user_is_owner_zoneid', $zone['zid']);
-                }
-                if ($perm_edit == "all" || ( $perm_edit == "own" && $user_is_zone_owner == "1")) {
-                    echo "           <a href=\"delete_domain.php?name=" . $zone['name'] . "&id=" . $zone['zid'] . "\"><img src=\"images/delete.gif\" title=\"" . _('Delete zone') . " " . $zone['name'] . "\" alt=\"[ " . _('Delete zone') . " " . $zone['name'] . " ]\"></a>\n";
-                }
-                echo "          </td>\n";
-                echo "       <td>" . $zone['name'] . "</td>\n";
-                echo "       <td>" . $zone['type'] . "</td>\n";
-                if ($zone['type'] == "SLAVE") {
-                    echo "       <td>" . $zone['master'] . "</td>\n";
-                } else {
-                    echo "       <td>&nbsp;</td>\n";
-                }
-                if ($perm_edit == "all") {
-                    echo "          <td>" . $zone['owner'] . "</td>";
-                }
-                echo "      </tr>\n";
-            }
-            echo "     </table>\n";
-        }
-
-        if (is_array($result['records'])) {
-            echo "     <script language=\"JavaScript\" type=\"text/javascript\">\n";
-            echo "     <!--\n";
-            echo "     function record_sort_by ( sortbytype )\n";
-            echo "     {\n";
-            echo "       document.sortby_record_form.record_sort_by.value = sortbytype ;\n";
-            echo "       document.sortby_record_form.submit() ;\n";
-            echo "     }\n";
-            echo "     -->\n";
-            echo "     </script>\n";
-            echo "     <form name=\"sortby_record_form\" method=\"post\" action=\"search.php\">\n";
-            echo "     <input type=\"hidden\" name=\"query\" value=\"" . $_POST['query'] . "\" />\n";
-            echo "     <input type=\"hidden\" name=\"record_sort_by\" />\n";
-            echo "     <h3>" . _('Records found') . ":</h3>\n";
-            echo "     <table>\n";
-            echo "      <tr>\n";
-            echo "       <th>&nbsp;</th>\n";
-            echo "       <th><a href=\"javascript:record_sort_by('name')\">" . _('Name') . "</a></th>\n";
-            echo "       <th><a href=\"javascript:record_sort_by('type')\">" . _('Type') . "</a></th>\n";
-            echo "       <th><a href=\"javascript:record_sort_by('content')\">" . _('Content') . "</a></th>\n";
-            echo "       <th>Priority</th>\n";
-            echo "       <th><a href=\"javascript:record_sort_by('ttl')\">" . _('TTL') . "</a></th>\n";
-            echo "      </tr>\n";
-            echo "      </form>\n";
-
-            foreach ($result['records'] as $record) {
-
-                echo "      <tr>\n";
-                echo "          <td>\n";
-                echo "           <a href=\"edit_record.php?id=" . $record['rid'] . "\"><img src=\"images/edit.gif\" title=\"" . _('Edit record') . " " . $record['name'] . "\" alt=\"[ " . _('Edit record') . " " . $record['name'] . " ]\"></a>\n";
-                if ($perm_edit != "all" || $perm_edit != "none") {
-                    $user_is_zone_owner = do_hook('verify_user_is_owner_zoneid', $record['zid']);
-                }
-                if ($perm_edit == "all" || ( $perm_edit == "own" && $user_is_zone_owner == "1")) {
-                    echo "           <a href=\"delete_record.php?id=" . $record['rid'] . "\"><img src=\"images/delete.gif\" title=\"" . _('Delete record') . " " . $record['name'] . "\" alt=\"[ " . _('Delete record') . " " . $record['name'] . " ]\"></a>\n";
-                }
-                echo "          </td>\n";
-                echo "       <td>" . $record['name'] . "</td>\n";
-                echo "       <td>" . $record['type'] . "</td>\n";
-                echo "       <td>" . $record['content'] . "</td>\n";
-                if ($record['type'] == "MX" || $record['type'] == "SRV") {
-                    echo "       <td>" . $record['prio'] . "</td>\n";
-                } else {
-                    echo "       <td>&nbsp;</td>\n";
-                }
-                echo "       <td>" . $record['ttl'] . "</td>\n";
-                echo "      </tr>\n";
-            }
-            echo "     </table>\n";
-        }
-    } else { // !isset($_POST['query'])
-        $wildcards = true;
-        $arpa = true;
+    require_once 'inc/footer.inc.php';
+    die();
+}
+
+$parameters['query'] = isset($_POST['query']) && !empty($_POST['query']) ? $_POST['query'] : '';
+$parameters['wildcard'] = !isset($_POST['wildcard']) || isset($_POST['wildcard']) && $_POST['wildcard'] == true ? true : false;
+$parameters['reverse'] = !isset($_POST['reverse']) || isset($_POST['reverse']) && $_POST['reverse'] == true ? true : false;
+
+?>
+
+<h2><?php echo _('Search zones and records'); ?></h2>
+<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="POST">
+    <table>
+        <tr>
+            <td>
+                <input type="text" class="input" name="query" value="<?php echo $parameters['query']; ?>">
+                <input type="submit" class="button" name="submit" value="<?php echo _('Search'); ?>">
+                <input type="checkbox" class="input" name="wildcard" value="true"<?php echo $parameters['wildcard'] ? ' checked="checked"' : ''; ?>><?php echo _('Wildcard'); ?>
+                <input type="checkbox" class="input" name="reverse" value="true"<?php echo $parameters['reverse'] ? ' checked="checked"' : ''; ?>><?php echo _('Reverse'); ?>
+            </td>
+        </tr>
+        <tr>
+            <td><?php echo _('Enter a hostname or IP address. SQL LIKE syntax supported: an underscore (_) in pattern matches any single character, a percent sign (%) matches any string of zero or more characters.'); ?></td>
+        </tr>
+    </table>
+</form>
+
+<?php
+
+if (isset($_POST['query'])) {
+    if (do_hook('verify_permission', 'zone_content_view_others')) {
+        $permissions['view'] = "all";
+    } elseif (do_hook('verify_permission', 'zone_content_view_own')) {
+        $permissions['view'] = "own";
+    } else {
+        $permissions['view'] = "none";
+    }
+
+    if (do_hook('verify_permission', 'zone_content_edit_others')) {
+        $permissions['edit'] = "all";
+    } elseif (do_hook('verify_permission', 'zone_content_edit_own')) {
+        $permissions['edit'] = "own";
+    } else {
+        $permissions['edit'] = "none";
     }
 
-    echo "     <h3>" . _('Query') . ":</h3>\n";
-    echo "      <form method=\"post\" action=\"" . htmlentities($_SERVER['PHP_SELF'], ENT_QUOTES) . "\">\n";
-    echo "       <table>\n";
-    echo "        <tr>\n";
-    echo "         <td>\n";
-    echo "          <input type=\"text\" class=\"input\" name=\"query\" value=\"" . $holy_grail . "\">&nbsp;\n";
-    echo "          <input type=\"submit\" class=\"button\" name=\"submit\" value=\"" . _('Search') . "\">\n";
-    echo "          <input type=\"checkbox\" class=\"input\" name=\"wildcards\" value=\"true\"" . ($wildcards ? "checked=\"checked\"" : "") . ">" . _('Wildcard') . "\n";
-    echo "          <input type=\"checkbox\" class=\"input\" name=\"arpa\" value=\"true\"" . ($arpa ? "checked=\"checked\"" : "") . ">" . _('Reverse') . "\n";
-    echo "         </td>\n";
-    echo "        </tr>\n";
-    echo "        <tr>\n";
-    echo "         <td>\n";
-    echo "          " . _('Enter a hostname or IP address. SQL LIKE syntax supported: an underscore (_) in pattern matches any single character, a percent sign (%) matches any string of zero or more characters.') . "\n";
-    echo "         </td>\n";
-    echo "        </tr>\n";
-    echo "       </table>\n";
-    echo "      </form>\n";
+    $searchResult = search_zone_and_record(
+        $parameters['query'],
+        $permissions['view'],
+        ZONE_SORT_BY,
+        RECORD_SORT_BY,
+        $parameters['wildcard'],
+        $parameters['reverse']
+    );
+
+    if (is_array($searchResult['zones'])):
+?>
+
+        <h3><?php echo _('Zones found'); ?></h3>
+        <table>
+            <tr>
+                <th></th>
+                <th><a href=""><?php echo _('Name'); ?></a></th>
+                <th><a href=""><?php echo _('Type'); ?></a></th>
+                <th><a href=""><?php echo _('Records'); ?></a></th>
+                <th><a href=""><?php echo _('Owner'); ?></a></th>
+            </tr>
+            <?php foreach ($searchResult['zones'] as $zone): ?>
+                <tr>
+                    <td>
+                        <?php if ($permissions['edit'] == 'all' || $permissions['edit'] == 'own' && do_hook('verify_user_is_owner_zoneid', $zone['id'])): ?>
+                            <a href="<?php echo 'edit.php?name=' . $zone['name'] . '&id=' . $zone['id']; ?>"><img src="images/edit.gif" alt="[ <?php echo _('Edit zone'); ?> ]" title="<?php echo _('Edit zone'); ?>"></a>
+                            <a href="<?php echo 'delete_domain.php?name=' . $zone['name'] . '&id=' . $zone['id']; ?>"><img src="images/delete.gif" alt="[ <?php echo _('Delete zone'); ?> ]" title="<?php echo _('Delete zone'); ?>"></a>
+                        <?php endif; ?>
+                    </td>
+                    <td><?php echo $zone['name']; ?></td>
+                    <td><?php echo $zone['type']; ?></td>
+                    <td><?php echo $zone['count_records']; ?></td>
+                    <td><?php echo $zone['fullname']; ?></td>
+                </tr>
+            <?php endforeach; ?>
+        </table>
+
+<?php
+    endif;
+    if (is_array($searchResult['records'])):
+?>
+
+        <h3><?php echo _('Records found'); ?></h3>
+        <table>
+            <tr>
+                <th></th>
+                <th><a href=""><?php echo _('Name'); ?></a></th>
+                <th><a href=""><?php echo _('Type'); ?></a></th>
+                <th><a href=""><?php echo _('Priority'); ?></a></th>
+                <th><a href=""><?php echo _('Content'); ?></a></th>
+                <th><a href=""><?php echo _('TTL'); ?></a></th>
+            </tr>
+            <?php foreach ($searchResult['records'] as $record): ?>
+                <tr>
+                    <td>
+                        <?php if ($permissions['edit'] == 'all' || $permissions['edit'] == 'own' && do_hook('verify_user_is_owner_zoneid', $record['domain_id'])): ?>
+                            <a href="<?php echo 'edit_record.php?domain=' . $record['domain_id'] . '&id=' . $record['id']; ?>"><img src="images/edit.gif" alt="[ <?php echo _('Edit zone'); ?> ]" title="<?php echo _('Edit zone'); ?>"></a>
+                            <a href="<?php echo 'delete_record.php?domain=' . $record['domain_id'] . '&id=' . $record['id']; ?>"><img src="images/delete.gif" alt="[ <?php echo _('Delete zone'); ?> ]" title="<?php echo _('Delete zone'); ?>"></a>
+                        <?php endif; ?>
+                    </td>
+                    <td><?php echo $record['name']; ?></td>
+                    <td><?php echo $record['type']; ?></td>
+                    <td><?php echo $record['prio']; ?></td>
+                    <td><?php echo $record['content']; ?></td>
+                    <td><?php echo $record['ttl']; ?></td>
+                </tr>
+            <?php endforeach; ?>
+        </table>
+
+<?php
+    endif;
 }
-include_once('inc/footer.inc.php');
+
+require_once 'inc/footer.inc.php';
+
+?>

From 65bc55783a6f4e431874f812aeebcd394dcbf4c5 Mon Sep 17 00:00:00 2001
From: Aleksey Kuzmin <Aleksey.Kuzmin@rt.ru>
Date: Fri, 26 Feb 2016 13:32:56 +0300
Subject: [PATCH 45/61] zone letters visibility reworked

---
 inc/toolkit.inc.php | 72 +++++++++++++++++++++++++++++----------------
 1 file changed, 47 insertions(+), 25 deletions(-)

diff --git a/inc/toolkit.inc.php b/inc/toolkit.inc.php
index ce5ce8ae7..1d5a31553 100644
--- a/inc/toolkit.inc.php
+++ b/inc/toolkit.inc.php
@@ -371,35 +371,54 @@ function show_pages($amount, $rowamount, $id = '') {
  * @return null
  */
 function show_letters($letterstart, $userid) {
+    global $db;
+
+    $char_range = array_merge(range('a', 'z'), array('_'));
+
+    $allowed = zone_content_view_others($userid);
+
+    $query = "SELECT
+			DISTINCT SUBSTRING(domains.name, 1, 1) AS letter
+			FROM domains
+			LEFT JOIN zones ON domains.id = zones.domain_id
+			WHERE " . $allowed . " = 1
+			OR zones.owner = " . $userid . "
+			ORDER BY 1";
+    $db->setLimit(36);
+
+    $available_chars = array();
+    $digits_available = 0;
+
+    $response = $db->query($query);
+
+    while ($row = $response->fetchRow()) {
+        if (preg_match("/[0-9]/", $row['letter'])) {
+	    $digits_available = 1;
+	} elseif (in_array($row['letter'], $char_range)) {
+	    array_push($available_chars, $row['letter']);
+	}
+    }
+
     echo _('Show zones beginning with') . ":<br>";
 
-    $letter = "[[:digit:]]";
     if ($letterstart == "1") {
         echo "<span class=\"lettertaken\">[ 0-9 ]</span> ";
-    } elseif (zone_letter_start($letter, $userid)) {
+    } elseif ($digits_available) {
         echo "<a href=\"" . htmlentities($_SERVER["PHP_SELF"], ENT_QUOTES) . "?letter=1\">[ 0-9 ]</a> ";
     } else {
         echo "[ <span class=\"letternotavailable\">0-9</span> ] ";
     }
 
-    foreach (range('a', 'z') as $letter) {
+    foreach ($char_range as $letter) {
         if ($letter == $letterstart) {
             echo "<span class=\"lettertaken\">[ " . $letter . " ]</span> ";
-        } elseif (zone_letter_start($letter, $userid)) {
+        } elseif (in_array($letter, $available_chars)) {
             echo "<a href=\"" . htmlentities($_SERVER["PHP_SELF"], ENT_QUOTES) . "?letter=" . $letter . "\">[ " . $letter . " ]</a> ";
         } else {
             echo "[ <span class=\"letternotavailable\">" . $letter . "</span> ] ";
         }
     }
 
-    if ($letterstart == '_') {
-        echo "<span class=\"lettertaken\">[ _ ]</span> ";
-    } elseif (zone_letter_start('_', $userid)) {
-        echo "<a href=\"" . htmlentities($_SERVER["PHP_SELF"], ENT_QUOTES) . "?letter=_\">[ _ ]</a> ";
-    } else {
-        echo "[ <span class=\"letternotavailable\">_</span> ] ";
-    }
-
     if ($letterstart == 'all') {
         echo "<span class=\"lettertaken\">[ Show all ]</span>";
     } else {
@@ -407,26 +426,29 @@ function show_letters($letterstart, $userid) {
     }
 }
 
-/** Check if any zones start with letter
+/** Check if current user allowed to view any zone content
  *
- * @param string $letter Starting Letter
  * @param int $userid Current user ID
  *
- * @return int 1 if rows found, 0 otherwise
+ * @return int 1 if user has permission to view other users zones content, 0 otherwise
  */
-function zone_letter_start($letter, $userid) {
+function zone_content_view_others($userid) {
     global $db;
-    global $sql_regexp;
+
     $query = "SELECT
-			domains.id AS domain_id,
-			zones.owner,
-			domains.name AS domainname
-			FROM domains
-			LEFT JOIN zones ON domains.id=zones.domain_id
-			WHERE zones.owner = " . $userid . "
-			AND substring(domains.name,1,1) " . $sql_regexp . " " . $db->quote("^" . $letter, 'text');
-    $db->setLimit(1);
+		DISTINCT u.id
+		FROM 	users u,
+		        perm_templ pt,
+		        perm_templ_items pti,
+		        (SELECT id FROM perm_items WHERE name
+			    IN ('zone_content_view_others', 'user_is_ueberuser')) pit
+                WHERE u.id = " . $userid . "
+                AND u.perm_templ = pt.id
+                AND pti.templ_id = pt.id
+                AND pti.perm_id  = pit.id";
+
     $result = $db->queryOne($query);
+
     return ($result ? 1 : 0);
 }
 

From 23ab35d16c9520afc5ee961328be77e516cc53a0 Mon Sep 17 00:00:00 2001
From: Sebastian Sellmeier <sebastian@sellmeier.me>
Date: Fri, 26 Feb 2016 23:01:55 +0100
Subject: [PATCH 46/61] Readd function to change order, removed debug-code

---
 search.php | 41 +++++++++++++++++++++++++++--------------
 1 file changed, 27 insertions(+), 14 deletions(-)

diff --git a/search.php b/search.php
index 55e53163a..e50e624c8 100644
--- a/search.php
+++ b/search.php
@@ -30,9 +30,6 @@
  * @license     http://opensource.org/licenses/GPL-3.0 GPL
  */
 
-error_reporting(E_ALL);
-ini_set('display_errors', 1);
-
 require_once 'inc/toolkit.inc.php';
 require_once 'inc/header.inc.php';
 
@@ -49,14 +46,16 @@
 ?>
 
 <h2><?php echo _('Search zones and records'); ?></h2>
-<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="POST">
+<form name="search_form" action="<?php echo $_SERVER['PHP_SELF']; ?>" method="POST">
     <table>
         <tr>
             <td>
                 <input type="text" class="input" name="query" value="<?php echo $parameters['query']; ?>">
-                <input type="submit" class="button" name="submit" value="<?php echo _('Search'); ?>">
+                <input type="submit" class="button" name="do_search" value="<?php echo _('Search'); ?>">
                 <input type="checkbox" class="input" name="wildcard" value="true"<?php echo $parameters['wildcard'] ? ' checked="checked"' : ''; ?>><?php echo _('Wildcard'); ?>
                 <input type="checkbox" class="input" name="reverse" value="true"<?php echo $parameters['reverse'] ? ' checked="checked"' : ''; ?>><?php echo _('Reverse'); ?>
+                <input type="hidden" name="zone_sort_by" value="<?php echo ZONE_SORT_BY; ?>">
+                <input type="hidden" name="record_sort_by" value="<?php echo RECORD_SORT_BY; ?>">
             </td>
         </tr>
         <tr>
@@ -100,10 +99,10 @@
         <table>
             <tr>
                 <th></th>
-                <th><a href=""><?php echo _('Name'); ?></a></th>
-                <th><a href=""><?php echo _('Type'); ?></a></th>
-                <th><a href=""><?php echo _('Records'); ?></a></th>
-                <th><a href=""><?php echo _('Owner'); ?></a></th>
+                <th><a href="javascript:zone_sort_by('name');"><?php echo _('Name'); ?></a></th>
+                <th><a href="javascript:zone_sort_by('type');"><?php echo _('Type'); ?></a></th>
+                <th><a href="javascript:zone_sort_by('count_records');"><?php echo _('Records'); ?></a></th>
+                <th><a href="javascript:zone_sort_by('fullname');"><?php echo _('Owner'); ?></a></th>
             </tr>
             <?php foreach ($searchResult['zones'] as $zone): ?>
                 <tr>
@@ -130,11 +129,11 @@
         <table>
             <tr>
                 <th></th>
-                <th><a href=""><?php echo _('Name'); ?></a></th>
-                <th><a href=""><?php echo _('Type'); ?></a></th>
-                <th><a href=""><?php echo _('Priority'); ?></a></th>
-                <th><a href=""><?php echo _('Content'); ?></a></th>
-                <th><a href=""><?php echo _('TTL'); ?></a></th>
+                <th><a href="javascript:record_sort_by('name');"><?php echo _('Name'); ?></a></th>
+                <th><a href="javascript:record_sort_by('type');"><?php echo _('Type'); ?></a></th>
+                <th><a href="javascript:record_sort_by('prio');"><?php echo _('Priority'); ?></a></th>
+                <th><a href="javascript:record_sort_by('content');"><?php echo _('Content'); ?></a></th>
+                <th><a href="javascript:record_sort_by('ttl');"><?php echo _('TTL'); ?></a></th>
             </tr>
             <?php foreach ($searchResult['records'] as $record): ?>
                 <tr>
@@ -153,6 +152,20 @@
             <?php endforeach; ?>
         </table>
 
+        <script type="text/javascript">
+            function zone_sort_by(sortbytype)
+            {
+                document.search_form.zone_sort_by.value = sortbytype;
+                document.search_form.submit();
+            }
+
+            function record_sort_by(sortbytype)
+            {
+                document.search_form.record_sort_by.value = sortbytype;
+                document.search_form.submit();
+            }
+        </script>
+
 <?php
     endif;
 }

From 9d79e08426a6f4f7a626f22c058c0113dfca1d95 Mon Sep 17 00:00:00 2001
From: Sebastian Sellmeier <sebastian@sellmeier.me>
Date: Fri, 26 Feb 2016 23:36:45 +0100
Subject: [PATCH 47/61] Implemented feature as requested in #92, fixed filter
 not submited correct using order

---
 inc/record.inc.php | 150 +++++++++++++++++++++++----------------------
 search.php         |  18 +++---
 2 files changed, 86 insertions(+), 82 deletions(-)

diff --git a/inc/record.inc.php b/inc/record.inc.php
index fec5780b6..e6bbcf641 100644
--- a/inc/record.inc.php
+++ b/inc/record.inc.php
@@ -1614,102 +1614,104 @@ function get_users_from_domain_id($id) {
     return $owners;
 }
 
-/** Search for Zone or Record
+/**
+ * Search for Zones and/or Records
  *
- * @param string $search_string  String to search
+ * @param array $parameters Array with parameters which configures function
  * @param string $permission_view User permitted to view 'all' or 'own' zones
- * @param string $sort_zones_by Column to sort domain results [default='name']
- * @param string $sort_records_by Column to sort record results by [default='name']
- * @param boolean $wildcard Add wildcards automatically
- * @param boolean $reverse Search reverse records automatically
- *
- * @return mixed[] 'zones' => array of zones, 'records' => array of records
+ * @param string $sort_zones_by Column to sort zone results
+ * @param string $sort_records_by Column to sort record results
+ * @return array|bool
  */
-function search_zone_and_record($search_string, $permission_view, $sort_zones_by = 'name', $sort_records_by = 'name', $wildcard = true, $reverse = true) {
+function search_zone_and_record($parameters, $permission_view, $sort_zones_by, $sort_records_by) {
     global $db;
 
     $return = array('zones' => [], 'records' => []);
 
-    if ($reverse) {
-        if (filter_var($search_string, FILTER_FLAG_IPV4)) {
-            $reverse_search_string = implode('.', array_reverse(explode('.', $search_string)));
-        } elseif (filter_var($search_string, FILTER_FLAG_IPV6)) {
-            $reverse_search_string = unpack('H*hex', inet_pton($search_string));
+    if ($parameters['reverse']) {
+        if (filter_var($parameters['query'], FILTER_FLAG_IPV4)) {
+            $reverse_search_string = implode('.', array_reverse(explode('.', $parameters['query'])));
+        } elseif (filter_var($parameters['query'], FILTER_FLAG_IPV6)) {
+            $reverse_search_string = unpack('H*hex', inet_pton($parameters['query']));
             $reverse_search_string = implode('.', array_reverse(str_split($reverse_search_string['hex'])));
         } else {
-            $reverse = false;
+            $parameters['reverse'] = false;
             $reverse_search_string = '';
         }
 
         $reverse_search_string = $db->quote('%' . $reverse_search_string . '%', 'text');
     }
 
-    $search_string = ($wildcard ? '%' : '') . trim($search_string) . ($wildcard ? '%' : '');
-
-    $zonesQuery = '
-        SELECT
-            domains.id,
-            domains.name,
-            domains.type,
-            z.id as zone_id,
-            z.domain_id,
-            z.owner,
-            u.id as user_id,
-            u.fullname,
-            record_count.count_records
-        FROM
-            domains
-        LEFT JOIN zones z on domains.id = z.domain_id
-        LEFT JOIN users u on z.owner = u.id
-        LEFT JOIN (SELECT COUNT(domain_id) AS count_records, domain_id FROM records WHERE type IS NOT NULL GROUP BY domain_id) record_count ON record_count.domain_id=domains.id
-        WHERE
-            (domains.name LIKE ' . $db->quote($search_string, 'text') .
-            ($reverse ? ' OR domains.name LIKE ' . $reverse_search_string : '') . ') ' .
+    $search_string = ($parameters['wildcard'] ? '%' : '') . trim($parameters['query']) . ($parameters['wildcard'] ? '%' : '');
+
+    if ($parameters['zones']) {
+        $zonesQuery = '
+            SELECT
+                domains.id,
+                domains.name,
+                domains.type,
+                z.id as zone_id,
+                z.domain_id,
+                z.owner,
+                u.id as user_id,
+                u.fullname,
+                record_count.count_records
+            FROM
+                domains
+            LEFT JOIN zones z on domains.id = z.domain_id
+            LEFT JOIN users u on z.owner = u.id
+            LEFT JOIN (SELECT COUNT(domain_id) AS count_records, domain_id FROM records WHERE type IS NOT NULL GROUP BY domain_id) record_count ON record_count.domain_id=domains.id
+            WHERE
+                (domains.name LIKE ' . $db->quote($search_string, 'text') .
+            ($parameters['reverse'] ? ' OR domains.name LIKE ' . $reverse_search_string : '') . ') ' .
             ($permission_view == 'own' ? ' AND z.owner = ' . $db->quote($_SESSION['userid'], 'integer') : '') .
-        ' ORDER BY ' . $sort_zones_by;
+            ' ORDER BY ' . $sort_zones_by;
 
-    $zonesResponse = $db->query($zonesQuery);
-    if (PEAR::isError($zonesResponse)) {
-        error($zonesResponse->getMessage());
-        return false;
+        $zonesResponse = $db->query($zonesQuery);
+        if (PEAR::isError($zonesResponse)) {
+            error($zonesResponse->getMessage());
+            return false;
+        }
+
+        while ($zone = $zonesResponse->fetchRow()) {
+            $return['zones'][] = $zone;
+        }
     }
 
-    while($zone = $zonesResponse->fetchRow()) {
-        $return['zones'][] = $zone;
-    }
-
-
-    $recordsQuery = '
-        SELECT
-            records.id,
-            records.domain_id,
-            records.name,
-            records.type,
-            records.content,
-            records.ttl,
-            records.prio,
-            z.id as zone_id,
-            z.owner,
-            u.id as user_id,
-            u.fullname
-        FROM
-            records
-        LEFT JOIN zones z on records.domain_id = z.domain_id
-        LEFT JOIN users u on z.owner = u.id
-        WHERE
-            (records.name LIKE ' . $db->quote($search_string, 'text') . ' OR records.content LIKE ' . $db->quote($search_string, 'text') .
-            ($reverse ? ' OR records.name LIKE ' . $reverse_search_string . ' OR records.content LIKE ' . $reverse_search_string : '') . ')' .
+
+    if ($parameters['records']) {
+        $recordsQuery = '
+            SELECT
+                records.id,
+                records.domain_id,
+                records.name,
+                records.type,
+                records.content,
+                records.ttl,
+                records.prio,
+                z.id as zone_id,
+                z.owner,
+                u.id as user_id,
+                u.fullname
+            FROM
+                records
+            LEFT JOIN zones z on records.domain_id = z.domain_id
+            LEFT JOIN users u on z.owner = u.id
+            WHERE
+                (records.name LIKE ' . $db->quote($search_string, 'text') . ' OR records.content LIKE ' . $db->quote($search_string, 'text') .
+            ($parameters['reverse'] ? ' OR records.name LIKE ' . $reverse_search_string . ' OR records.content LIKE ' . $reverse_search_string : '') . ')' .
             ($permission_view == 'own' ? 'AND z.owner = ' . $db->quote($_SESSION['userid'], 'integer') : '') .
-        ' ORDER BY ' . $sort_records_by;
+            ' ORDER BY ' . $sort_records_by;
 
-    $recordsResponse = $db->query($recordsQuery);
-    if (PEAR::isError($recordsResponse)) {
-        error($recordsResponse->getMessage());
-        return false;
-    }
+        $recordsResponse = $db->query($recordsQuery);
+        if (PEAR::isError($recordsResponse)) {
+            error($recordsResponse->getMessage());
+            return false;
+        }
 
-    while($record = $recordsResponse->fetchRow()) {
-        $return['records'][] = $record;
+        while ($record = $recordsResponse->fetchRow()) {
+            $return['records'][] = $record;
+        }
     }
 
     return $return;
diff --git a/search.php b/search.php
index e50e624c8..14db935e6 100644
--- a/search.php
+++ b/search.php
@@ -40,8 +40,10 @@
 }
 
 $parameters['query'] = isset($_POST['query']) && !empty($_POST['query']) ? $_POST['query'] : '';
-$parameters['wildcard'] = !isset($_POST['wildcard']) || isset($_POST['wildcard']) && $_POST['wildcard'] == true ? true : false;
-$parameters['reverse'] = !isset($_POST['reverse']) || isset($_POST['reverse']) && $_POST['reverse'] == true ? true : false;
+$parameters['zones'] = !isset($_POST['do_search']) && !isset($_POST['zones']) || isset($_POST['zones']) && $_POST['zones'] == true ? true : false;
+$parameters['records'] = !isset($_POST['do_search']) && !isset($_POST['records']) || isset($_POST['records']) && $_POST['records'] == true ? true : false;
+$parameters['wildcard'] = !isset($_POST['do_search']) && !isset($_POST['wildcard']) || isset($_POST['wildcard']) && $_POST['wildcard'] == true ? true : false;
+$parameters['reverse'] = !isset($_POST['do_search']) && !isset($_POST['reverse']) || isset($_POST['reverse']) && $_POST['reverse'] == true ? true : false;
 
 ?>
 
@@ -52,6 +54,8 @@
             <td>
                 <input type="text" class="input" name="query" value="<?php echo $parameters['query']; ?>">
                 <input type="submit" class="button" name="do_search" value="<?php echo _('Search'); ?>">
+                <input type="checkbox" class="input" name="zones" value="true"<?php echo $parameters['zones'] ? ' checked="checked"' : ''; ?>><?php echo _('Zones'); ?>
+                <input type="checkbox" class="input" name="records" value="true"<?php echo $parameters['records'] ? ' checked="checked"' : ''; ?>><?php echo _('Records'); ?> |
                 <input type="checkbox" class="input" name="wildcard" value="true"<?php echo $parameters['wildcard'] ? ' checked="checked"' : ''; ?>><?php echo _('Wildcard'); ?>
                 <input type="checkbox" class="input" name="reverse" value="true"<?php echo $parameters['reverse'] ? ' checked="checked"' : ''; ?>><?php echo _('Reverse'); ?>
                 <input type="hidden" name="zone_sort_by" value="<?php echo ZONE_SORT_BY; ?>">
@@ -84,12 +88,10 @@
     }
 
     $searchResult = search_zone_and_record(
-        $parameters['query'],
+        $parameters,
         $permissions['view'],
         ZONE_SORT_BY,
-        RECORD_SORT_BY,
-        $parameters['wildcard'],
-        $parameters['reverse']
+        RECORD_SORT_BY
     );
 
     if (is_array($searchResult['zones'])):
@@ -156,13 +158,13 @@
             function zone_sort_by(sortbytype)
             {
                 document.search_form.zone_sort_by.value = sortbytype;
-                document.search_form.submit();
+                document.getElementsByName("do_search")[0].click();
             }
 
             function record_sort_by(sortbytype)
             {
                 document.search_form.record_sort_by.value = sortbytype;
-                document.search_form.submit();
+                document.getElementsByName("do_search")[0].click();
             }
         </script>
 

From 95017a780d71805ee647eb732c4c2e9fbbe9e6c1 Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <edmondas@poweradmin.org>
Date: Sat, 27 Feb 2016 21:32:48 +0200
Subject: [PATCH 48/61] Updated valid TLD list.

---
 inc/toolkit.inc.php | 252 ++++++++++++++++++++++++++++----------------
 1 file changed, 160 insertions(+), 92 deletions(-)

diff --git a/inc/toolkit.inc.php b/inc/toolkit.inc.php
index f86dcaa36..a7ddf22f5 100644
--- a/inc/toolkit.inc.php
+++ b/inc/toolkit.inc.php
@@ -108,99 +108,167 @@
     define('RECORD_SORT_BY', "name");
 }
 
-// Updated on 2015092200 - 1061 TLDs
+// Updated on 2016022601 - 1238 TLDs
 // http://data.iana.org/TLD/tlds-alpha-by-domain.txt
-$valid_tlds = array('aaa', 'abb', 'abbott', 'abogado', 'ac', 'academy', 'accenture', 'accountant', 'accountants',
-'aco', 'active', 'actor', 'ad', 'ads', 'adult', 'ae', 'aeg', 'aero', 'af', 'afl', 'ag', 'agency', 'ai', 'aig',
-'airforce', 'airtel', 'al', 'allfinanz', 'alsace', 'am', 'amica', 'amsterdam', 'android', 'ao', 'apartments',
-'app', 'aq', 'aquarelle', 'ar', 'archi', 'army', 'arpa', 'as', 'asia', 'associates', 'at', 'attorney', 'au',
-'auction', 'audio', 'auto', 'autos', 'aw', 'ax', 'axa', 'az', 'azure', 'ba', 'band', 'bank', 'bar', 'barcelona',
-'barclaycard', 'barclays', 'bargains', 'bauhaus', 'bayern', 'bb', 'bbc', 'bbva', 'bcn', 'bd', 'be', 'beer',
-'bentley', 'berlin', 'best', 'bet', 'bf', 'bg', 'bh', 'bharti', 'bi', 'bible', 'bid', 'bike', 'bing', 'bingo',
-'bio', 'biz', 'bj', 'black', 'blackfriday', 'bloomberg', 'blue', 'bm', 'bmw', 'bn', 'bnl', 'bnpparibas', 'bo',
-'boats', 'bond', 'boo', 'boots', 'boutique', 'br', 'bradesco', 'bridgestone', 'broker', 'brother', 'brussels',
-'bs', 'bt', 'budapest', 'build', 'builders', 'business', 'buzz', 'bv', 'bw', 'by', 'bz', 'bzh', 'ca', 'cab',
-'cafe', 'cal', 'camera', 'camp', 'cancerresearch', 'canon', 'capetown', 'capital', 'car', 'caravan', 'cards',
-'care', 'career', 'careers', 'cars', 'cartier', 'casa', 'cash', 'casino', 'cat', 'catering', 'cba', 'cbn', 'cc',
-'cd', 'ceb', 'center', 'ceo', 'cern', 'cf', 'cfa', 'cfd', 'cg', 'ch', 'chanel', 'channel', 'chat', 'cheap',
-'chloe', 'christmas', 'chrome', 'church', 'ci', 'cisco', 'citic', 'city', 'ck', 'cl', 'claims', 'cleaning',
-'click', 'clinic', 'clothing', 'cloud', 'club', 'cm', 'cn', 'co', 'coach', 'codes', 'coffee', 'college',
-'cologne', 'com', 'commbank', 'community', 'company', 'computer', 'condos', 'construction', 'consulting',
-'contractors', 'cooking', 'cool', 'coop', 'corsica', 'country', 'coupons', 'courses', 'cr', 'credit',
-'creditcard', 'cricket', 'crown', 'crs', 'cruises', 'csc', 'cu', 'cuisinella', 'cv', 'cw', 'cx', 'cy',
-'cymru', 'cyou', 'cz', 'dabur', 'dad', 'dance', 'date', 'dating', 'datsun', 'day', 'dclk', 'de', 'deals',
-'degree', 'delivery', 'delta', 'democrat', 'dental', 'dentist', 'desi', 'design', 'dev', 'diamonds', 'diet',
-'digital', 'direct', 'directory', 'discount', 'dj', 'dk', 'dm', 'dnp', 'do', 'docs', 'dog', 'doha', 'domains',
-'doosan', 'download', 'drive', 'durban', 'dvag', 'dz', 'earth', 'eat', 'ec', 'edu', 'education', 'ee', 'eg',
-'email', 'emerck', 'energy', 'engineer', 'engineering', 'enterprises', 'epson', 'equipment', 'er', 'erni',
-'es', 'esq', 'estate', 'et', 'eu', 'eurovision', 'eus', 'events', 'everbank', 'exchange', 'expert', 'exposed',
-'express', 'fage', 'fail', 'faith', 'family', 'fan', 'fans', 'farm', 'fashion', 'feedback', 'fi', 'film',
-'finance', 'financial', 'firmdale', 'fish', 'fishing', 'fit', 'fitness', 'fj', 'fk', 'flights', 'florist',
-'flowers', 'flsmidth', 'fly', 'fm', 'fo', 'foo', 'football', 'forex', 'forsale', 'forum', 'foundation', 'fr',
-'frl', 'frogans', 'fund', 'furniture', 'futbol', 'fyi', 'ga', 'gal', 'gallery', 'game', 'garden', 'gb', 'gbiz',
-'gd', 'gdn', 'ge', 'gea', 'gent', 'genting', 'gf', 'gg', 'ggee', 'gh', 'gi', 'gift', 'gifts', 'gives', 'giving',
-'gl', 'glass', 'gle', 'global', 'globo', 'gm', 'gmail', 'gmo', 'gmx', 'gn', 'gold', 'goldpoint', 'golf', 'goo',
-'goog', 'google', 'gop', 'gov', 'gp', 'gq', 'gr', 'graphics', 'gratis', 'green', 'gripe', 'group', 'gs', 'gt',
-'gu', 'guge', 'guide', 'guitars', 'guru', 'gw', 'gy', 'hamburg', 'hangout', 'haus', 'healthcare', 'help', 'here',
-'hermes', 'hiphop', 'hitachi', 'hiv', 'hk', 'hm', 'hn', 'hockey', 'holdings', 'holiday', 'homedepot', 'homes',
-'honda', 'horse', 'host', 'hosting', 'hoteles', 'hotmail', 'house', 'how', 'hr', 'hsbc', 'ht', 'hu', 'ibm',
-'icbc', 'ice', 'icu', 'id', 'ie', 'ifm', 'iinet', 'il', 'im', 'immo', 'immobilien', 'in', 'industries',
-'infiniti', 'info', 'ing', 'ink', 'institute', 'insure', 'int', 'international', 'investments', 'io',
-'ipiranga', 'iq', 'ir', 'irish', 'is', 'ist', 'istanbul', 'it', 'itau', 'iwc', 'java', 'jcb', 'je',
-'jetzt', 'jewelry', 'jlc', 'jll', 'jm', 'jo', 'jobs', 'joburg', 'jp', 'jprs', 'juegos', 'kaufen', 'kddi',
-'ke', 'kg', 'kh', 'ki', 'kim', 'kitchen', 'kiwi', 'km', 'kn', 'koeln', 'komatsu', 'kp', 'kr', 'krd', 'kred',
-'kw', 'ky', 'kyoto', 'kz', 'la', 'lacaixa', 'lancaster', 'land', 'lasalle', 'lat', 'latrobe', 'law', 'lawyer',
-'lb', 'lc', 'lds', 'lease', 'leclerc', 'legal', 'lexus', 'lgbt', 'li', 'liaison', 'lidl', 'life', 'lighting',
-'limited', 'limo', 'linde', 'link', 'live', 'lixil', 'lk', 'loan', 'loans', 'lol', 'london', 'lotte', 'lotto',
-'love', 'lr', 'ls', 'lt', 'ltda', 'lu', 'lupin', 'luxe', 'luxury', 'lv', 'ly', 'ma', 'madrid', 'maif', 'maison',
-'man', 'management', 'mango', 'market', 'marketing', 'markets', 'marriott', 'mba', 'mc', 'md', 'me', 'media',
-'meet', 'melbourne', 'meme', 'memorial', 'men', 'menu', 'mg', 'mh', 'miami', 'microsoft', 'mil', 'mini', 'mk',
-'ml', 'mm', 'mma', 'mn', 'mo', 'mobi', 'moda', 'moe', 'mom', 'monash', 'money', 'montblanc', 'mormon', 'mortgage',
-'moscow', 'motorcycles', 'mov', 'movie', 'movistar', 'mp', 'mq', 'mr', 'ms', 'mt', 'mtn', 'mtpc', 'mu', 'museum',
-'mv', 'mw', 'mx', 'my', 'mz', 'na', 'nadex', 'nagoya', 'name', 'navy', 'nc', 'ne', 'nec', 'net', 'netbank',
-'network', 'neustar', 'new', 'news', 'nexus', 'nf', 'ng', 'ngo', 'nhk', 'ni', 'nico', 'ninja', 'nissan', 'nl',
-'no', 'nokia', 'np', 'nr', 'nra', 'nrw', 'ntt', 'nu', 'nyc', 'nz', 'office', 'okinawa', 'om', 'omega', 'one',
-'ong', 'onl', 'online', 'ooo', 'oracle', 'orange', 'org', 'organic', 'osaka', 'otsuka', 'ovh', 'pa', 'page',
-'panerai', 'paris', 'partners', 'parts', 'party', 'pe', 'pet', 'pf', 'pg', 'ph', 'pharmacy', 'philips', 'photo',
-'photography', 'photos', 'physio', 'piaget', 'pics', 'pictet', 'pictures', 'pink', 'pizza', 'pk', 'pl', 'place',
-'play', 'plumbing', 'plus', 'pm', 'pn', 'pohl', 'poker', 'porn', 'post', 'pr', 'praxi', 'press', 'pro', 'prod',
-'productions', 'prof', 'properties', 'property', 'protection', 'ps', 'pt', 'pub', 'pw', 'py', 'qa', 'qpon',
-'quebec', 'racing', 're', 'realtor', 'realty', 'recipes', 'red', 'redstone', 'rehab', 'reise', 'reisen', 'reit',
-'ren', 'rent', 'rentals', 'repair', 'report', 'republican', 'rest', 'restaurant', 'review', 'reviews', 'rich',
-'ricoh', 'rio', 'rip', 'ro', 'rocks', 'rodeo', 'rs', 'rsvp', 'ru', 'ruhr', 'run', 'rw', 'ryukyu', 'sa', 'saarland',
-'sakura', 'sale', 'samsung', 'sandvik', 'sandvikcoromant', 'sanofi', 'sap', 'sarl', 'saxo', 'sb', 'sc', 'sca',
-'scb', 'schmidt', 'scholarships', 'school', 'schule', 'schwarz', 'science', 'scor', 'scot', 'sd', 'se', 'seat',
-'security', 'seek', 'sener', 'services', 'sew', 'sex', 'sexy', 'sg', 'sh', 'shiksha', 'shoes', 'show', 'shriram',
-'si', 'singles', 'site', 'sj', 'sk', 'ski', 'sky', 'skype', 'sl', 'sm', 'sn', 'sncf', 'so', 'soccer', 'social',
-'software', 'sohu', 'solar', 'solutions', 'sony', 'soy', 'space', 'spiegel', 'spreadbetting', 'sr', 'srl', 'st',
-'stada', 'starhub', 'statoil', 'stc', 'stcgroup', 'studio', 'study', 'style', 'su', 'sucks', 'supplies', 'supply',
-'support', 'surf', 'surgery', 'suzuki', 'sv', 'swatch', 'swiss', 'sx', 'sy', 'sydney', 'systems', 'sz', 'taipei',
-'tatamotors', 'tatar', 'tattoo', 'tax', 'taxi', 'tc', 'td', 'team', 'tech', 'technology', 'tel', 'telefonica',
-'temasek', 'tennis', 'tf', 'tg', 'th', 'thd', 'theater', 'theatre', 'tickets', 'tienda', 'tips', 'tires', 'tirol',
-'tj', 'tk', 'tl', 'tm', 'tn', 'to', 'today', 'tokyo', 'tools', 'top', 'toray', 'toshiba', 'tours', 'town', 'toyota',
-'toys', 'tr', 'trade', 'trading', 'training', 'travel', 'trust', 'tt', 'tui', 'tv', 'tw', 'tz', 'ua', 'ubs', 'ug',
-'uk', 'university', 'uno', 'uol', 'us', 'uy', 'uz', 'va', 'vacations', 'vc', 've', 'vegas', 'ventures',
-'versicherung', 'vet', 'vg', 'vi', 'viajes', 'video', 'villas', 'vin', 'vision', 'vista', 'vistaprint', 'viva',
-'vlaanderen', 'vn', 'vodka', 'vote', 'voting', 'voto', 'voyage', 'vu', 'wales', 'walter', 'wang', 'watch',
-'webcam', 'website', 'wed', 'wedding', 'weir', 'wf', 'whoswho', 'wien', 'wiki', 'williamhill', 'win', 'windows',
-'wine', 'wme', 'work', 'works', 'world', 'ws', 'wtc', 'wtf', 'xbox', 'xerox', 'xin', 'xn--11b4c3d', 'xn--1qqw23a',
-'xn--30rr7y', 'xn--3bst00m', 'xn--3ds443g', 'xn--3e0b707e', 'xn--3pxu8k', 'xn--42c2d9a', 'xn--45brj9c',
-'xn--45q11c', 'xn--4gbrim', 'xn--55qw42g', 'xn--55qx5d', 'xn--6frz82g', 'xn--6qq986b3xl', 'xn--80adxhks',
-'xn--80ao21a', 'xn--80asehdb', 'xn--80aswg', 'xn--90a3ac', 'xn--90ais', 'xn--9dbq2a', 'xn--9et52u',
-'xn--b4w605ferd', 'xn--c1avg', 'xn--c2br7g', 'xn--cg4bki', 'xn--clchc0ea0b2g2a9gcd', 'xn--czr694b',
-'xn--czrs0t', 'xn--czru2d', 'xn--d1acj3b', 'xn--d1alf', 'xn--efvy88h', 'xn--estv75g', 'xn--fhbei',
-'xn--fiq228c5hs', 'xn--fiq64b', 'xn--fiqs8s', 'xn--fiqz9s', 'xn--fjq720a', 'xn--flw351e', 'xn--fpcrj9c3d',
-'xn--fzc2c9e2c', 'xn--gecrj9c', 'xn--h2brj9c', 'xn--hxt814e', 'xn--i1b6b1a6a2e', 'xn--imr513n', 'xn--io0a7i',
-'xn--j1aef', 'xn--j1amh', 'xn--j6w193g', 'xn--kcrx77d1x4a', 'xn--kprw13d', 'xn--kpry57d', 'xn--kput3i',
-'xn--l1acc', 'xn--lgbbat1ad8j', 'xn--mgb9awbf', 'xn--mgba3a4f16a', 'xn--mgbaam7a8h', 'xn--mgbab2bd',
-'xn--mgbayh7gpa', 'xn--mgbbh1a71e', 'xn--mgbc0a9azcg', 'xn--mgberp4a5d4ar', 'xn--mgbpl2fh', 'xn--mgbx4cd0ab',
-'xn--mk1bu44c', 'xn--mxtq1m', 'xn--ngbc5azd', 'xn--node', 'xn--nqv7f', 'xn--nqv7fs00ema', 'xn--nyqy26a',
-'xn--o3cw4h', 'xn--ogbpf8fl', 'xn--p1acf', 'xn--p1ai', 'xn--pgbs0dh', 'xn--pssy2u', 'xn--q9jyb4c',
-'xn--qcka1pmc', 'xn--rhqv96g', 'xn--s9brj9c', 'xn--ses554g', 'xn--t60b56a', 'xn--tckwe', 'xn--unup4y',
-'xn--vermgensberater-ctb', 'xn--vermgensberatung-pwb', 'xn--vhquv', 'xn--vuq861b', 'xn--wgbh1c',
-'xn--wgbl6a', 'xn--xhq521b', 'xn--xkc2al3hye2a', 'xn--xkc2dl3a5ee0h', 'xn--y9a3aq', 'xn--yfro4i67o',
-'xn--ygbi2ammx', 'xn--zfr164b', 'xperia', 'xxx', 'xyz', 'yachts', 'yandex', 'ye', 'yodobashi', 'yoga',
-'yokohama', 'youtube', 'yt', 'za', 'zip', 'zm', 'zone', 'zuerich', 'zw');
+$valid_tlds = array("aaa", "aarp", "abb", "abbott", "abogado", "ac", "academy",
+    "accenture", "accountant", "accountants", "aco", "active", "actor", "ad",
+    "adac", "ads", "adult", "ae", "aeg", "aero", "af", "afl", "ag", "agency",
+    "ai", "aig", "airforce", "airtel", "al", "alibaba", "alipay", "allfinanz",
+    "alsace", "am", "amica", "amsterdam", "analytics", "android", "ao",
+    "apartments", "app", "apple", "aq", "aquarelle", "ar", "aramco", "archi",
+    "army", "arpa", "arte", "as", "asia", "associates", "at", "attorney", "au",
+    "auction", "audi", "audio", "author", "auto", "autos", "aw", "ax", "axa",
+    "az", "azure", "ba", "baidu", "band", "bank", "bar", "barcelona",
+    "barclaycard", "barclays", "bargains", "bauhaus", "bayern", "bb", "bbc",
+    "bbva", "bcn", "bd", "be", "beats", "beer", "bentley", "berlin", "best",
+    "bet", "bf", "bg", "bh", "bharti", "bi", "bible", "bid", "bike", "bing",
+    "bingo", "bio", "biz", "bj", "black", "blackfriday", "bloomberg", "blue",
+    "bm", "bms", "bmw", "bn", "bnl", "bnpparibas", "bo", "boats", "boehringer",
+    "bom", "bond", "boo", "book", "boots", "bosch", "bostik", "bot", "boutique",
+    "br", "bradesco", "bridgestone", "broadway", "broker", "brother", "brussels",
+    "bs", "bt", "budapest", "bugatti", "build", "builders", "business", "buy",
+    "buzz", "bv", "bw", "by", "bz", "bzh", "ca", "cab", "cafe", "cal", "call",
+    "camera", "camp", "cancerresearch", "canon", "capetown", "capital", "car",
+    "caravan", "cards", "care", "career", "careers", "cars", "cartier", "casa",
+    "cash", "casino", "cat", "catering", "cba", "cbn", "cc", "cd", "ceb",
+    "center", "ceo", "cern", "cf", "cfa", "cfd", "cg", "ch", "chanel", "channel",
+    "chat", "cheap", "chloe", "christmas", "chrome", "church", "ci", "cipriani",
+    "circle", "cisco", "citic", "city", "cityeats", "ck", "cl", "claims",
+    "cleaning", "click", "clinic", "clinique", "clothing", "cloud", "club",
+    "clubmed", "cm", "cn", "co", "coach", "codes", "coffee", "college", "cologne",
+    "com", "commbank", "community", "company", "compare", "computer", "comsec",
+    "condos", "construction", "consulting", "contact", "contractors", "cooking",
+    "cool", "coop", "corsica", "country", "coupon", "coupons", "courses", "cr",
+    "credit", "creditcard", "creditunion", "cricket", "crown", "crs", "cruises",
+    "csc", "cu", "cuisinella", "cv", "cw", "cx", "cy", "cymru", "cyou", "cz",
+    "dabur", "dad", "dance", "date", "dating", "datsun", "day", "dclk", "de",
+    "dealer", "deals", "degree", "delivery", "dell", "deloitte", "delta",
+    "democrat", "dental", "dentist", "desi", "design", "dev", "diamonds", "diet",
+    "digital", "direct", "directory", "discount", "dj", "dk", "dm", "dnp", "do",
+    "docs", "dog", "doha", "domains", "download", "drive", "dubai", "durban",
+    "dvag", "dz", "earth", "eat", "ec", "edeka", "edu", "education", "ee", "eg",
+    "email", "emerck", "energy", "engineer", "engineering", "enterprises",
+    "epson", "equipment", "er", "erni", "es", "esq", "estate", "et", "eu",
+    "eurovision", "eus", "events", "everbank", "exchange", "expert", "exposed",
+    "express", "fage", "fail", "fairwinds", "faith", "family", "fan", "fans",
+    "farm", "fashion", "fast", "feedback", "ferrero", "fi", "film", "final",
+    "finance", "financial", "firestone", "firmdale", "fish", "fishing", "fit",
+    "fitness", "fj", "fk", "flickr", "flights", "florist", "flowers", "flsmidth",
+    "fly", "fm", "fo", "foo", "football", "ford", "forex", "forsale", "forum",
+    "foundation", "fox", "fr", "fresenius", "frl", "frogans", "frontier", "fund",
+    "furniture", "futbol", "fyi", "ga", "gal", "gallery", "gallup", "game",
+    "garden", "gb", "gbiz", "gd", "gdn", "ge", "gea", "gent", "genting", "gf",
+    "gg", "ggee", "gh", "gi", "gift", "gifts", "gives", "giving", "gl", "glass",
+    "gle", "global", "globo", "gm", "gmail", "gmo", "gmx", "gn", "gold",
+    "goldpoint", "golf", "goo", "goog", "google", "gop", "got", "gov", "gp", "gq",
+    "gr", "grainger", "graphics", "gratis", "green", "gripe", "group", "gs", "gt",
+    "gu", "gucci", "guge", "guide", "guitars", "guru", "gw", "gy", "hamburg",
+    "hangout", "haus", "hdfcbank", "health", "healthcare", "help", "helsinki",
+    "here", "hermes", "hiphop", "hitachi", "hiv", "hk", "hm", "hn", "hockey",
+    "holdings", "holiday", "homedepot", "homes", "honda", "horse", "host",
+    "hosting", "hoteles", "hotmail", "house", "how", "hr", "hsbc", "ht", "hu",
+    "hyundai", "ibm", "icbc", "ice", "icu", "id", "ie", "ifm", "iinet", "il",
+    "im", "immo", "immobilien", "in", "industries", "infiniti", "info", "ing",
+    "ink", "institute", "insurance", "insure", "int", "international",
+    "investments", "io", "ipiranga", "iq", "ir", "irish", "is", "iselect", "ist",
+    "istanbul", "it", "itau", "iwc", "jaguar", "java", "jcb", "je", "jetzt",
+    "jewelry", "jlc", "jll", "jm", "jmp", "jo", "jobs", "joburg", "jot", "joy",
+    "jp", "jprs", "juegos", "kaufen", "kddi", "ke", "kfh", "kg", "kh", "ki",
+    "kia", "kim", "kinder", "kitchen", "kiwi", "km", "kn", "koeln", "komatsu",
+    "kp", "kpn", "kr", "krd", "kred", "kw", "ky", "kyoto", "kz", "la", "lacaixa",
+    "lamborghini", "lamer", "lancaster", "land", "landrover", "lanxess",
+    "lasalle", "lat", "latrobe", "law", "lawyer", "lb", "lc", "lds", "lease",
+    "leclerc", "legal", "lexus", "lgbt", "li", "liaison", "lidl", "life",
+    "lifeinsurance", "lifestyle", "lighting", "like", "limited", "limo",
+    "lincoln", "linde", "link", "live", "living", "lixil", "lk", "loan", "loans",
+    "lol", "london", "lotte", "lotto", "love", "lr", "ls", "lt", "ltd", "ltda",
+    "lu", "lupin", "luxe", "luxury", "lv", "ly", "ma", "madrid", "maif", "maison",
+    "makeup", "man", "management", "mango", "market", "marketing", "markets",
+    "marriott", "mba", "mc", "md", "me", "med", "media", "meet", "melbourne",
+    "meme", "memorial", "men", "menu", "meo", "mg", "mh", "miami", "microsoft",
+    "mil", "mini", "mk", "ml", "mm", "mma", "mn", "mo", "mobi", "mobily", "moda",
+    "moe", "moi", "mom", "monash", "money", "montblanc", "mormon", "mortgage",
+    "moscow", "motorcycles", "mov", "movie", "movistar", "mp", "mq", "mr", "ms",
+    "mt", "mtn", "mtpc", "mtr", "mu", "museum", "mutuelle", "mv", "mw", "mx",
+    "my", "mz", "na", "nadex", "nagoya", "name", "natura", "navy", "nc", "ne",
+    "nec", "net", "netbank", "network", "neustar", "new", "news", "nexus", "nf",
+    "ng", "ngo", "nhk", "ni", "nico", "nikon", "ninja", "nissan", "nl", "no",
+    "nokia", "norton", "nowruz", "np", "nr", "nra", "nrw", "ntt", "nu", "nyc",
+    "nz", "obi", "office", "okinawa", "om", "omega", "one", "ong", "onl",
+    "online", "ooo", "oracle", "orange", "org", "organic", "origins", "osaka",
+    "otsuka", "ovh", "pa", "page", "pamperedchef", "panerai", "paris", "pars",
+    "partners", "parts", "party", "pe", "pet", "pf", "pg", "ph", "pharmacy",
+    "philips", "photo", "photography", "photos", "physio", "piaget", "pics",
+    "pictet", "pictures", "pid", "pin", "ping", "pink", "pizza", "pk", "pl",
+    "place", "play", "playstation", "plumbing", "plus", "pm", "pn", "pohl",
+    "poker", "porn", "post", "pr", "praxi", "press", "pro", "prod", "productions",
+    "prof", "promo", "properties", "property", "protection", "ps", "pt", "pub",
+    "pw", "pwc", "py", "qa", "qpon", "quebec", "quest", "racing", "re", "read",
+    "realtor", "realty", "recipes", "red", "redstone", "redumbrella", "rehab",
+    "reise", "reisen", "reit", "ren", "rent", "rentals", "repair", "report",
+    "republican", "rest", "restaurant", "review", "reviews", "rexroth", "rich",
+    "ricoh", "rio", "rip", "ro", "rocher", "rocks", "rodeo", "room", "rs", "rsvp",
+    "ru", "ruhr", "run", "rw", "rwe", "ryukyu", "sa", "saarland", "safe",
+    "safety", "sakura", "sale", "salon", "samsung", "sandvik", "sandvikcoromant",
+    "sanofi", "sap", "sapo", "sarl", "sas", "saxo", "sb", "sbs", "sc", "sca",
+    "scb", "schaeffler", "schmidt", "scholarships", "school", "schule", "schwarz",
+    "science", "scor", "scot", "sd", "se", "seat", "security", "seek", "select",
+    "sener", "services", "seven", "sew", "sex", "sexy", "sfr", "sg", "sh",
+    "sharp", "shell", "shia", "shiksha", "shoes", "show", "shriram", "si",
+    "singles", "site", "sj", "sk", "ski", "skin", "sky", "skype", "sl", "sm",
+    "smile", "sn", "sncf", "so", "soccer", "social", "softbank", "software",
+    "sohu", "solar", "solutions", "song", "sony", "soy", "space", "spiegel",
+    "spot", "spreadbetting", "sr", "srl", "st", "stada", "star", "starhub",
+    "statefarm", "statoil", "stc", "stcgroup", "stockholm", "storage", "store",
+    "studio", "study", "style", "su", "sucks", "supplies", "supply", "support",
+    "surf", "surgery", "suzuki", "sv", "swatch", "swiss", "sx", "sy", "sydney",
+    "symantec", "systems", "sz", "tab", "taipei", "taobao", "tatamotors", "tatar",
+    "tattoo", "tax", "taxi", "tc", "tci", "td", "team", "tech", "technology",
+    "tel", "telecity", "telefonica", "temasek", "tennis", "tf", "tg", "th", "thd",
+    "theater", "theatre", "tickets", "tienda", "tiffany", "tips", "tires",
+    "tirol", "tj", "tk", "tl", "tm", "tmall", "tn", "to", "today", "tokyo",
+    "tools", "top", "toray", "toshiba", "tours", "town", "toyota", "toys", "tr",
+    "trade", "trading", "training", "travel", "travelers", "travelersinsurance",
+    "trust", "trv", "tt", "tube", "tui", "tunes", "tushu", "tv", "tvs", "tw",
+    "tz", "ua", "ubs", "ug", "uk", "unicom", "university", "uno", "uol", "us",
+    "uy", "uz", "va", "vacations", "vana", "vc", "ve", "vegas", "ventures",
+    "verisign", "versicherung", "vet", "vg", "vi", "viajes", "video", "viking",
+    "villas", "vin", "vip", "virgin", "vision", "vista", "vistaprint", "viva",
+    "vlaanderen", "vn", "vodka", "volkswagen", "vote", "voting", "voto", "voyage",
+    "vu", "wales", "walter", "wang", "wanggou", "watch", "watches", "weather",
+    "weatherchannel", "webcam", "weber", "website", "wed", "wedding", "weir",
+    "wf", "whoswho", "wien", "wiki", "williamhill", "win", "windows", "wine",
+    "wme", "wolterskluwer", "work", "works", "world", "ws", "wtc", "wtf", "xbox",
+    "xerox", "xin", "xn--11b4c3d", "xn--1ck2e1b", "xn--1qqw23a", "xn--30rr7y",
+    "xn--3bst00m", "xn--3ds443g", "xn--3e0b707e", "xn--3pxu8k", "xn--42c2d9a",
+    "xn--45brj9c", "xn--45q11c", "xn--4gbrim", "xn--55qw42g", "xn--55qx5d",
+    "xn--6frz82g", "xn--6qq986b3xl", "xn--80adxhks", "xn--80ao21a",
+    "xn--80asehdb", "xn--80aswg", "xn--8y0a063a", "xn--90a3ac", "xn--90ais",
+    "xn--9dbq2a", "xn--9et52u", "xn--b4w605ferd", "xn--bck1b9a5dre4c",
+    "xn--c1avg", "xn--c2br7g", "xn--cck2b3b", "xn--cg4bki",
+    "xn--clchc0ea0b2g2a9gcd", "xn--czr694b", "xn--czrs0t", "xn--czru2d",
+    "xn--d1acj3b", "xn--d1alf", "xn--e1a4c", "xn--eckvdtc9d", "xn--efvy88h",
+    "xn--estv75g", "xn--fhbei", "xn--fiq228c5hs", "xn--fiq64b", "xn--fiqs8s",
+    "xn--fiqz9s", "xn--fjq720a", "xn--flw351e", "xn--fpcrj9c3d", "xn--fzc2c9e2c",
+    "xn--g2xx48c", "xn--gckr3f0f", "xn--gecrj9c", "xn--h2brj9c", "xn--hxt814e",
+    "xn--i1b6b1a6a2e", "xn--imr513n", "xn--io0a7i", "xn--j1aef", "xn--j1amh",
+    "xn--j6w193g", "xn--jlq61u9w7b", "xn--jvr189m", "xn--kcrx77d1x4a",
+    "xn--kprw13d", "xn--kpry57d", "xn--kpu716f", "xn--kput3i", "xn--l1acc",
+    "xn--lgbbat1ad8j", "xn--mgb9awbf", "xn--mgba3a3ejt", "xn--mgba3a4f16a",
+    "xn--mgbaam7a8h", "xn--mgbab2bd", "xn--mgbayh7gpa", "xn--mgbb9fbpob",
+    "xn--mgbbh1a71e", "xn--mgbc0a9azcg", "xn--mgberp4a5d4ar", "xn--mgbpl2fh",
+    "xn--mgbt3dhd", "xn--mgbtx2b", "xn--mgbx4cd0ab", "xn--mix891f",
+    "xn--mk1bu44c", "xn--mxtq1m", "xn--ngbc5azd", "xn--ngbe9e0a", "xn--node",
+    "xn--nqv7f", "xn--nqv7fs00ema", "xn--nyqy26a", "xn--o3cw4h", "xn--ogbpf8fl",
+    "xn--p1acf", "xn--p1ai", "xn--pbt977c", "xn--pgbs0dh", "xn--pssy2u",
+    "xn--q9jyb4c", "xn--qcka1pmc", "xn--qxam", "xn--rhqv96g", "xn--rovu88b",
+    "xn--s9brj9c", "xn--ses554g", "xn--t60b56a", "xn--tckwe", "xn--unup4y",
+    "xn--vermgensberater-ctb", "xn--vermgensberatung-pwb", "xn--vhquv",
+    "xn--vuq861b", "xn--wgbh1c", "xn--wgbl6a", "xn--xhq521b", "xn--xkc2al3hye2a",
+    "xn--xkc2dl3a5ee0h", "xn--y9a3aq", "xn--yfro4i67o", "xn--ygbi2ammx",
+    "xn--zfr164b", "xperia", "xxx", "xyz", "yachts", "yahoo", "yamaxun", "yandex",
+    "ye", "yodobashi", "yoga", "yokohama", "youtube", "yt", "za", "zara", "zero",
+    "zip", "zm", "zone", "zuerich", "zw");
 
 // Special TLDs for testing and documentation purposes
 // http://tools.ietf.org/html/rfc2606#section-2

From 3e842ba88e0eb384f3e4630c6055538dca927bbe Mon Sep 17 00:00:00 2001
From: Robin Elfrink <robin.elfrink@eu.equinix.com>
Date: Wed, 2 Mar 2016 13:48:20 +0100
Subject: [PATCH 49/61] Log DNSSEC operations.

---
 inc/dnssec.inc.php | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/inc/dnssec.inc.php b/inc/dnssec.inc.php
index cc428e8ec..e4d5f51de 100644
--- a/inc/dnssec.inc.php
+++ b/inc/dnssec.inc.php
@@ -144,6 +144,9 @@ function dnssec_secure_zone($domain_name) {
         return false;
     }
 
+    log_info(sprintf('client_ip:%s user:%s operation:dnssec_secure_zone zone:%s',
+        $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"], $domain_name));
+
     return true;
 }
 
@@ -162,6 +165,9 @@ function dnssec_unsecure_zone($domain_name) {
         return false;
     }
 
+    log_info(sprintf('client_ip:%s user:%s operation:dnssec_unsecure_zone zone:%s',
+        $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"], $domain_name));
+
     return true;
 }
 
@@ -190,6 +196,8 @@ function dnssec_is_zone_secured($domain_name) {
  */
 function dnssec_set_nsec3($domain_name) {
     dnssec_call_pdnssec('set-nsec3', $domain_name);
+    log_info(sprintf('client_ip:%s user:%s operation:dnssec_set_nsec3 zone:%s',
+        $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"], $domain_name));
 }
 
 /** Switch back to NSEC
@@ -198,6 +206,8 @@ function dnssec_set_nsec3($domain_name) {
  */
 function dnssec_unset_nsec3($domain_name) {
     dnssec_call_pdnssec('unset-nsec3', $domain_name);
+    log_info(sprintf('client_ip:%s user:%s operation:dnssec_unset_nsec3 zone:%s',
+        $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"], $domain_name));
 }
 
 /** Return nsec type
@@ -219,6 +229,8 @@ function dnssec_get_nsec_type($domain_name) {
  */
 function dnssec_set_presigned($domain_name) {
     dnssec_call_pdnssec('set-presigned', $domain_name);
+    log_info(sprintf('client_ip:%s user:%s operation:dnssec_set_presigned zone:%s',
+        $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"], $domain_name));
 }
 
 /** No longer use presigned RRSIGs
@@ -227,6 +239,8 @@ function dnssec_set_presigned($domain_name) {
  */
 function dnssec_unset_presigned($domain_name) {
     dnssec_call_pdnssec('unset-presigned', $domain_name);
+    log_info(sprintf('client_ip:%s user:%s operation:unset-presigned zone:%s',
+        $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"], $domain_name));
 }
 
 /** Return presigned status
@@ -246,6 +260,8 @@ function dnssec_get_presigned_status($domain_name) {
  */
 function dnssec_rectify_all_zones() {
     dnssec_call_pdnssec('rectify-all-zones', '');
+    log_info(sprintf('client_ip:%s user:%s operation:dnssec_rectify_all_zones',
+        $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"]));
 }
 
 /** Return DS records
@@ -455,6 +471,9 @@ function dnssec_activate_zone_key($domain_name, $key_id) {
         return false;
     }
 
+    log_info(sprintf('client_ip:%s user:%s operation:dnssec_activate_zone_key zone:%s key_id:%s',
+        $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"], $domain_name, $key_id));
+
     return true;
 }
 
@@ -473,6 +492,9 @@ function dnssec_deactivate_zone_key($domain_name, $key_id) {
         return false;
     }
 
+    log_info(sprintf('client_ip:%s user:%s operation:dnssec_deactivate_zone_key zone:%s key_id:%s',
+        $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"], $domain_name, $key_id));
+
     return true;
 }
 
@@ -522,6 +544,9 @@ function dnssec_add_zone_key($domain_name, $key_type, $bits, $algorithm) {
         return false;
     }
 
+    log_info(sprintf('client_ip:%s user:%s operation:dnssec_add_zone_key zone:%s type:%s bits:%s algorithm:%s',
+        $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"], $domain_name, $key_type, $bits, $algorithm));
+
     return true;
 }
 
@@ -541,6 +566,9 @@ function dnssec_remove_zone_key($domain_name, $key_id) {
         return false;
     }
 
+    log_info(sprintf('client_ip:%s user:%s operation:dnssec_remove_zone_key zone:%s key_id:%s',
+        $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"], $domain_name, $key_id));
+
     return true;
 }
 

From c58e787501f6e145dda6fc7fad1a75135b748e87 Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <edmondas@poweradmin.org>
Date: Sun, 6 Mar 2016 19:59:42 +0200
Subject: [PATCH 50/61] Use single quotes.

---
 inc/dnssec.inc.php | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/inc/dnssec.inc.php b/inc/dnssec.inc.php
index e4d5f51de..5a5888105 100644
--- a/inc/dnssec.inc.php
+++ b/inc/dnssec.inc.php
@@ -145,7 +145,7 @@ function dnssec_secure_zone($domain_name) {
     }
 
     log_info(sprintf('client_ip:%s user:%s operation:dnssec_secure_zone zone:%s',
-        $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"], $domain_name));
+        $_SERVER['REMOTE_ADDR'], $_SESSION['userlogin'], $domain_name));
 
     return true;
 }
@@ -166,7 +166,7 @@ function dnssec_unsecure_zone($domain_name) {
     }
 
     log_info(sprintf('client_ip:%s user:%s operation:dnssec_unsecure_zone zone:%s',
-        $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"], $domain_name));
+        $_SERVER['REMOTE_ADDR'], $_SESSION['userlogin'], $domain_name));
 
     return true;
 }
@@ -197,7 +197,7 @@ function dnssec_is_zone_secured($domain_name) {
 function dnssec_set_nsec3($domain_name) {
     dnssec_call_pdnssec('set-nsec3', $domain_name);
     log_info(sprintf('client_ip:%s user:%s operation:dnssec_set_nsec3 zone:%s',
-        $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"], $domain_name));
+        $_SERVER['REMOTE_ADDR'], $_SESSION['userlogin'], $domain_name));
 }
 
 /** Switch back to NSEC
@@ -207,7 +207,7 @@ function dnssec_set_nsec3($domain_name) {
 function dnssec_unset_nsec3($domain_name) {
     dnssec_call_pdnssec('unset-nsec3', $domain_name);
     log_info(sprintf('client_ip:%s user:%s operation:dnssec_unset_nsec3 zone:%s',
-        $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"], $domain_name));
+        $_SERVER['REMOTE_ADDR'], $_SESSION['userlogin'], $domain_name));
 }
 
 /** Return nsec type
@@ -230,7 +230,7 @@ function dnssec_get_nsec_type($domain_name) {
 function dnssec_set_presigned($domain_name) {
     dnssec_call_pdnssec('set-presigned', $domain_name);
     log_info(sprintf('client_ip:%s user:%s operation:dnssec_set_presigned zone:%s',
-        $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"], $domain_name));
+        $_SERVER['REMOTE_ADDR'], $_SESSION['userlogin'], $domain_name));
 }
 
 /** No longer use presigned RRSIGs
@@ -240,7 +240,7 @@ function dnssec_set_presigned($domain_name) {
 function dnssec_unset_presigned($domain_name) {
     dnssec_call_pdnssec('unset-presigned', $domain_name);
     log_info(sprintf('client_ip:%s user:%s operation:unset-presigned zone:%s',
-        $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"], $domain_name));
+        $_SERVER['REMOTE_ADDR'], $_SESSION['userlogin'], $domain_name));
 }
 
 /** Return presigned status
@@ -261,7 +261,7 @@ function dnssec_get_presigned_status($domain_name) {
 function dnssec_rectify_all_zones() {
     dnssec_call_pdnssec('rectify-all-zones', '');
     log_info(sprintf('client_ip:%s user:%s operation:dnssec_rectify_all_zones',
-        $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"]));
+        $_SERVER['REMOTE_ADDR'], $_SESSION['userlogin']));
 }
 
 /** Return DS records
@@ -472,7 +472,7 @@ function dnssec_activate_zone_key($domain_name, $key_id) {
     }
 
     log_info(sprintf('client_ip:%s user:%s operation:dnssec_activate_zone_key zone:%s key_id:%s',
-        $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"], $domain_name, $key_id));
+        $_SERVER['REMOTE_ADDR'], $_SESSION['userlogin'], $domain_name, $key_id));
 
     return true;
 }
@@ -493,7 +493,7 @@ function dnssec_deactivate_zone_key($domain_name, $key_id) {
     }
 
     log_info(sprintf('client_ip:%s user:%s operation:dnssec_deactivate_zone_key zone:%s key_id:%s',
-        $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"], $domain_name, $key_id));
+        $_SERVER['REMOTE_ADDR'], $_SESSION['userlogin'], $domain_name, $key_id));
 
     return true;
 }
@@ -545,7 +545,7 @@ function dnssec_add_zone_key($domain_name, $key_type, $bits, $algorithm) {
     }
 
     log_info(sprintf('client_ip:%s user:%s operation:dnssec_add_zone_key zone:%s type:%s bits:%s algorithm:%s',
-        $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"], $domain_name, $key_type, $bits, $algorithm));
+        $_SERVER['REMOTE_ADDR'], $_SESSION['userlogin'], $domain_name, $key_type, $bits, $algorithm));
 
     return true;
 }
@@ -567,7 +567,7 @@ function dnssec_remove_zone_key($domain_name, $key_id) {
     }
 
     log_info(sprintf('client_ip:%s user:%s operation:dnssec_remove_zone_key zone:%s key_id:%s',
-        $_SERVER['REMOTE_ADDR'], $_SESSION["userlogin"], $domain_name, $key_id));
+        $_SERVER['REMOTE_ADDR'], $_SESSION['userlogin'], $domain_name, $key_id));
 
     return true;
 }

From ed45d620d0788259b04e4f19e592a5959a5ce4a9 Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <edmondas@poweradmin.org>
Date: Sun, 6 Mar 2016 20:00:21 +0200
Subject: [PATCH 51/61] Updated php doc for some functions.

---
 inc/dnssec.inc.php | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/inc/dnssec.inc.php b/inc/dnssec.inc.php
index 5a5888105..80149803b 100644
--- a/inc/dnssec.inc.php
+++ b/inc/dnssec.inc.php
@@ -459,8 +459,9 @@ function dnssec_get_dnskey_record($domain_name) {
 /** Activate zone key
  *
  * @param string $domain_name Domain Name
+ * @param $key_id
  *
- * @return boolean true on success, false on failure
+ * @return bool true on success, false on failure
  */
 function dnssec_activate_zone_key($domain_name, $key_id) {
     $call_result = dnssec_call_pdnssec('activate-zone-key', join(" ", array($domain_name, $key_id)));
@@ -480,8 +481,9 @@ function dnssec_activate_zone_key($domain_name, $key_id) {
 /** Deactivate zone key
  *
  * @param string $domain_name Domain Name
+ * @param $key_id
  *
- * @return boolean true on success, false on failure
+ * @return bool true on success, false on failure
  */
 function dnssec_deactivate_zone_key($domain_name, $key_id) {
     $call_result = dnssec_call_pdnssec('deactivate-zone-key', join(" ", array($domain_name, $key_id)));

From bfe81d62ffad2b10e47a593d7a6aea175433bbec Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <edmondas@poweradmin.org>
Date: Sun, 6 Mar 2016 20:05:34 +0200
Subject: [PATCH 52/61] Updated phpdoc block.

---
 inc/dnssec.inc.php | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/inc/dnssec.inc.php b/inc/dnssec.inc.php
index 80149803b..bc777dc8b 100644
--- a/inc/dnssec.inc.php
+++ b/inc/dnssec.inc.php
@@ -52,8 +52,9 @@ function dnssec_is_pdnssec_callable() {
 
 /** Execute dnssec utility
  *
- * @param $command Command name
- * @param $args Command arguments
+ * @param string $command Command name
+ * @param string $args Command arguments
+ *
  * @return mixed[] Array with output from command execution and error code
  */
 function dnssec_call_pdnssec($command, $args) {

From f70c08c9cc7e3b29d9a8121788c14575eb2b7102 Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <edmondas@poweradmin.org>
Date: Fri, 11 Mar 2016 12:19:36 +0200
Subject: [PATCH 53/61] Updated phpdoc for password functions.

---
 inc/password.inc.php | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/inc/password.inc.php b/inc/password.inc.php
index 67f6ebeb0..1974234b6 100644
--- a/inc/password.inc.php
+++ b/inc/password.inc.php
@@ -36,7 +36,7 @@
          *
          * @param string $pass password
          *
-         * @return salted password
+         * @return string salted password
          */
         function gen_mix_salt($pass) {
             $salt = generate_salt();
@@ -121,7 +121,12 @@ function needs_rehash($hash) {
         }
 
         /**
+         * Count the number of bytes in a string
          * @see https://github.com/ircmaxell/password_compat
+         *
+         * @param string $binary_string The input string
+         *
+         * @return int The number of bytes
          */
         function _strlen($binary_string) {
             if (function_exists('mb_strlen')) {
@@ -131,7 +136,13 @@ function _strlen($binary_string) {
         }
 
         /**
+         *
          * @see https://github.com/ircmaxell/password_compat
+         *
+         * @param string $str1 The first string
+         * @param string $str2 The second string
+         *
+         * @return bool true if they are equal, otherwise - false
          */
         function _strsafecmp($str1, $str2) {
             if (!is_string($str1) || !is_string($str2) || _strlen($str1) !== _strlen($str1)) {

From 02ea7d8c0a8ba3945e2b1a9937f9a1630bc307dc Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <edmondas@poweradmin.org>
Date: Fri, 11 Mar 2016 12:49:28 +0200
Subject: [PATCH 54/61] Let's use bcrypt as hashing algorithm for new
 installations.

---
 inc/config-me.inc.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/inc/config-me.inc.php b/inc/config-me.inc.php
index c5b9feeee..9e50ca356 100644
--- a/inc/config-me.inc.php
+++ b/inc/config-me.inc.php
@@ -28,8 +28,8 @@
 // Security settings
 // This should be changed upon install
 $session_key = 'p0w3r4dm1n';
-$password_encryption = 'md5'; // md5, md5salt or bcrypt
-//$password_encryption_cost = 12; // needed for bcrypt
+$password_encryption = 'bcrypt'; // md5, md5salt or bcrypt
+$password_encryption_cost = 12; // needed for bcrypt
 
 // Interface settings
 $iface_lang = 'en_EN';

From 51c4165f8754273a1eff11ad2d9cf17baa1f2451 Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <edmondas@poweradmin.org>
Date: Fri, 11 Mar 2016 13:09:29 +0200
Subject: [PATCH 55/61] Removed unused function.

---
 inc/toolkit.inc.php | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/inc/toolkit.inc.php b/inc/toolkit.inc.php
index c34b143bd..666be2218 100644
--- a/inc/toolkit.inc.php
+++ b/inc/toolkit.inc.php
@@ -599,20 +599,6 @@ function clean_page($arg = '') {
     }
 }
 
-/** Print active status
- *
- * @param int $res status, 0 for inactive, 1 active
- *
- * @return string html containing status
- */
-function get_status($res) {
-    if ($res == '0') {
-        return "<FONT CLASS=\"inactive\">" . _('Inactive') . "</FONT>";
-    } elseif ($res == '1') {
-        return "<FONT CLASS=\"active\">" . _('Active') . "</FONT>";
-    }
-}
-
 /** Validate email address string
  *
  * @param string $address email address string

From f9d368bce6a26a3638609802d3a8cb74a2b19b4c Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <edmondas@poweradmin.org>
Date: Fri, 11 Mar 2016 13:09:49 +0200
Subject: [PATCH 56/61] Minor refactoring, let variable has better naming.

---
 install/index.php | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/install/index.php b/install/index.php
index 92f89cba2..6f1ed51fc 100644
--- a/install/index.php
+++ b/install/index.php
@@ -10,7 +10,7 @@
     $language = "en_EN";
 }
 
-# FIXME: setlocale can fail if locale package is not installed ion the systme for that language
+# FIXME: setlocale can fail if locale package is not installed on the system for that language
 setlocale(LC_ALL, $language, $language . '.UTF-8');
 $gettext_domain = 'messages';
 if (!function_exists('bindtextdomain')) {
@@ -180,8 +180,8 @@ function get_random_key() {
         if (method_exists($fill_perm_items, 'free')) {
             $fill_perm_items->free();
         }
-        foreach ($def_remaining_queries as $n => $user_query) {
-            if ($n === 0) {
+        foreach ($def_remaining_queries as $query_nr => $user_query) {
+            if ($query_nr === 0) {
                 $user_query = sprintf($user_query, $db->quote(Poweradmin\password\hash($pa_pass), 'text'));
             }
             $db->query($user_query);

From ae919a67f09c9edb3aa999076ef38a091e37f54e Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <edmondas@poweradmin.org>
Date: Fri, 11 Mar 2016 13:13:06 +0200
Subject: [PATCH 57/61] Added new config variables that defines database
 charset and collation.

---
 inc/config-me.inc.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/inc/config-me.inc.php b/inc/config-me.inc.php
index 9e50ca356..e84ca4b62 100644
--- a/inc/config-me.inc.php
+++ b/inc/config-me.inc.php
@@ -21,6 +21,8 @@
 $db_pass = '';
 $db_name = '';
 $db_type = '';
+$db_charset = 'latin1'; // or utf8
+$db_collation = 'latin1_swedish_ci'; // or 'utf8_general_ci';
 //$db_file		= '';		# used only for SQLite, provide full path to database file
 //$db_debug		= false;	# show all SQL queries
 //$db_ssl_ca            = '';

From 64411b8bdccd5359dd4668245e47733b799e8b76 Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <edmondas@poweradmin.org>
Date: Fri, 11 Mar 2016 13:13:33 +0200
Subject: [PATCH 58/61] Do not set charset in sql statements, encoding and
 collation will be inherited from database.

---
 sql/poweradmin-mysql-db-structure.sql | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/sql/poweradmin-mysql-db-structure.sql b/sql/poweradmin-mysql-db-structure.sql
index a78f7de50..9b57158de 100644
--- a/sql/poweradmin-mysql-db-structure.sql
+++ b/sql/poweradmin-mysql-db-structure.sql
@@ -13,7 +13,7 @@ CREATE TABLE users (
   active      TINYINT      NOT NULL,
   use_ldap    TINYINT      NOT NULL,
   PRIMARY KEY (id)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+) ENGINE=InnoDB;
 
 START TRANSACTION;
     INSERT INTO users ( id, username, `password`, fullname, email
@@ -27,7 +27,7 @@ CREATE TABLE perm_items (
   name VARCHAR(64) NOT NULL,
   descr TEXT       NOT NULL,
   PRIMARY KEY (id)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+) ENGINE=InnoDB;
 
 START TRANSACTION;
     INSERT INTO perm_items ( id, name, descr ) VALUES ( 41, 'zone_master_add', 'User is allowed to add new master zones.' );
@@ -58,7 +58,7 @@ CREATE TABLE perm_templ (
   name  VARCHAR(128) NOT NULL,
   descr TEXT         NOT NULL,
   PRIMARY KEY  (id)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+) ENGINE=InnoDB;
 
 START TRANSACTION;
     INSERT INTO perm_templ ( id, name, descr )
@@ -71,7 +71,7 @@ CREATE TABLE perm_templ_items (
   templ_id INTEGER NOT NULL,
   perm_id INTEGER  NOT NULL,
   PRIMARY KEY (id)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+) ENGINE=InnoDB;
 
 START TRANSACTION;
     INSERT INTO perm_templ_items ( id, templ_id, perm_id )
@@ -86,7 +86,7 @@ CREATE TABLE zones (
   zone_templ_id INTEGER NOT NULL,
   PRIMARY KEY (id),
   KEY owner (owner)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+) ENGINE=InnoDB;
 
 CREATE TABLE zone_templ (
   id    INTEGER      NOT NULL AUTO_INCREMENT,
@@ -94,7 +94,7 @@ CREATE TABLE zone_templ (
   descr TEXT         NOT NULL,
   owner INTEGER      NOT NULL,
   PRIMARY KEY (id)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+) ENGINE=InnoDB;
 
 CREATE TABLE zone_templ_records (
   id            INTEGER      NOT NULL AUTO_INCREMENT,
@@ -105,15 +105,15 @@ CREATE TABLE zone_templ_records (
   ttl           INTEGER      NOT NULL,
   prio          INTEGER      NOT NULL,
   PRIMARY KEY (id)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+) ENGINE=InnoDB;
 
 CREATE TABLE records_zone_templ (
     domain_id INTEGER NOT NULL,
     record_id INTEGER NOT NULL,
     zone_templ_id INTEGER NOT NULL
-) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+) ENGINE=InnoDB;
 
 CREATE TABLE migrations (
     version VARCHAR(255) NOT NULL,
     apply_time INTEGER NOT NULL
-) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+) ENGINE=InnoDB;

From bd7f4ea391c973030904c41ce82d24dadae4d203 Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <edmondas@poweradmin.org>
Date: Fri, 11 Mar 2016 17:20:17 +0200
Subject: [PATCH 59/61] Changed implementation of setting charset and collation
 for database.

---
 inc/PDOLayer.php                   |  8 ++++----
 inc/config-me.inc.php              |  3 +--
 inc/database.inc.php               |  5 +++--
 install/database-structure.inc.php | 18 ++++++++--------
 install/index.php                  | 33 ++++++++++++++++++++++++++++--
 5 files changed, 48 insertions(+), 19 deletions(-)

diff --git a/inc/PDOLayer.php b/inc/PDOLayer.php
index a8a8e02dc..2026cb081 100644
--- a/inc/PDOLayer.php
+++ b/inc/PDOLayer.php
@@ -227,12 +227,12 @@ public function createTable($name, $fields, $options = array()) {
                 $query .= ' ENGINE=' . $options['type'];
             }
 
-            if (isset($options['default_charset'])) {
-                $query .= ' DEFAULT CHARSET=' . $options['default_charset'];
+            if (isset($options['charset'])) {
+                $query .= ' DEFAULT CHARSET=' . $options['charset'];
             }
 
-            if (isset($options['collate'])) {
-                $query .= ' COLLATE=' . $options['collate'];
+            if (isset($options['collation'])) {
+                $query .= ' COLLATE=' . $options['collation'];
             }
         }
 
diff --git a/inc/config-me.inc.php b/inc/config-me.inc.php
index e84ca4b62..2692c1e8f 100644
--- a/inc/config-me.inc.php
+++ b/inc/config-me.inc.php
@@ -21,8 +21,7 @@
 $db_pass = '';
 $db_name = '';
 $db_type = '';
-$db_charset = 'latin1'; // or utf8
-$db_collation = 'latin1_swedish_ci'; // or 'utf8_general_ci';
+//$db_charset = 'latin1'; // or utf8
 //$db_file		= '';		# used only for SQLite, provide full path to database file
 //$db_debug		= false;	# show all SQL queries
 //$db_ssl_ca            = '';
diff --git a/inc/database.inc.php b/inc/database.inc.php
index 1f629a986..2b15f9552 100644
--- a/inc/database.inc.php
+++ b/inc/database.inc.php
@@ -64,6 +64,7 @@ function dbConnect() {
     global $db_host;
     global $db_port;
     global $db_name;
+    global $db_charset;
     global $db_file;
     global $db_debug;
     global $db_ssl_ca;
@@ -131,14 +132,14 @@ function dbConnect() {
         $dsn = "$db_type:host=$db_host;port=$db_port;dbname=$db_name";
     }
 
-    if ($db_type === 'mysql') {
+    if ($db_type === 'mysql' && $db_charset === 'utf8') {
         $dsn .= ';charset=utf8';
     }
 
     $db = new PDOLayer($dsn, $db_user, $db_pass);
 
     // http://stackoverflow.com/a/4361485/567193
-    if ($db_type === 'mysql' && version_compare(phpversion(), '5.3.6', '<')) {
+    if ($db_type === 'mysql' && $db_charset === 'utf8' && version_compare(phpversion(), '5.3.6', '<')) {
         $db->exec('set names utf8');
     }
 
diff --git a/install/database-structure.inc.php b/install/database-structure.inc.php
index 5cdb9e9db..6f6c9d825 100644
--- a/install/database-structure.inc.php
+++ b/install/database-structure.inc.php
@@ -3,7 +3,7 @@
 $def_tables = array(
     array(
         'table_name' => 'perm_items',
-        'options' => array('type' => 'innodb', 'default_charset' => 'utf8', 'collate' => 'utf8_unicode_ci'),
+        'options' => array('type' => 'innodb'),
         'fields' => array(
             'id' => array(
                 'type' => 'integer',
@@ -38,7 +38,7 @@
     ),
     array(
         'table_name' => 'perm_templ',
-        'options' => array('type' => 'innodb', 'default_charset' => 'utf8', 'collate' => 'utf8_unicode_ci'),
+        'options' => array('type' => 'innodb'),
         'fields' => array(
             'id' => array(
                 'type' => 'integer',
@@ -74,7 +74,7 @@
     ),
     array(
         'table_name' => 'perm_templ_items',
-        'options' => array('type' => 'innodb', 'default_charset' => 'utf8', 'collate' => 'utf8_unicode_ci'),
+        'options' => array('type' => 'innodb'),
         'fields' => array(
             'id' => array(
                 'notnull' => 1,
@@ -110,7 +110,7 @@
     ),
     array(
         'table_name' => 'users',
-        'options' => array('type' => 'innodb', 'default_charset' => 'utf8', 'collate' => 'utf8_unicode_ci'),
+        'options' => array('type' => 'innodb'),
         'fields' => array(
             'id' => array
                 (
@@ -215,7 +215,7 @@
     ),
     array(
         'table_name' => 'zones',
-        'options' => array('type' => 'innodb', 'default_charset' => 'utf8', 'collate' => 'utf8_unicode_ci'),
+        'options' => array('type' => 'innodb'),
         'fields' => array(
             'id' => array
                 (
@@ -276,7 +276,7 @@
     ),
     array(
         'table_name' => 'zone_templ',
-        'options' => array('type' => 'innodb', 'default_charset' => 'utf8', 'collate' => 'utf8_unicode_ci'),
+        'options' => array('type' => 'innodb'),
         'fields' => array(
             'id' => array
                 (
@@ -327,7 +327,7 @@
     ),
     array(
         'table_name' => 'zone_templ_records',
-        'options' => array('type' => 'innodb', 'default_charset' => 'utf8', 'collate' => 'utf8_unicode_ci'),
+        'options' => array('type' => 'innodb'),
         'fields' => array(
             'id' => array
                 (
@@ -411,7 +411,7 @@
     ),
     array(
         'table_name' => 'records_zone_templ',
-        'options' => array('type' => 'innodb', 'default_charset' => 'utf8', 'collate' => 'utf8_unicode_ci'),
+        'options' => array('type' => 'innodb'),
         'fields' => array(
             'domain_id' => array
                 (
@@ -450,7 +450,7 @@
     ),
     array(
         'table_name' => 'migrations',
-        'options' => array('type' => 'innodb', 'default_charset' => 'utf8', 'collate' => 'utf8_unicode_ci'),
+        'options' => array('type' => 'innodb'),
         'fields' => array(
             'domain_id' => array
                 (
diff --git a/install/index.php b/install/index.php
index 6f1ed51fc..e24fbc2e3 100644
--- a/install/index.php
+++ b/install/index.php
@@ -138,6 +138,16 @@ function get_random_key() {
                 . "<span id=\"db_path_title\" style=\"display: none;\">" . _('The path and filename to the PowerDNS SQLite database.') . "</span></td>\n";
         echo " </tr>\n";
         echo "  <tr>\n";
+        echo "   <td>" . _('DB charset') . "</td>\n";
+        echo "   <td><input type=\"text\" name=\"charset\" value=\"\"></td>\n";
+        echo "   <td>" . _('The charset (encoding) which will be used for new tables. Leave it empty then default database charset will be used') . "</td>\n";
+        echo "  </tr>\n";
+        echo "  <tr>\n";
+        echo "   <td>" . _('DB collation') . "</td>\n";
+        echo "   <td><input type=\"text\" name=\"collation\" value=\"\"></td>\n";
+        echo "   <td>" . _('Set of rules for comparing characters in database. Leave it empty then default database collation will be used') . "</td>\n";
+        echo "  </tr>\n";
+        echo "  <tr>\n";
         echo "   <td>" . _('Poweradmin administrator password') . "</td>\n";
         echo "   <td><input type=\"password\" name=\"pa_pass\" value=\"\" autocomplete=\"off\"></td>\n";
         echo "   <td>" . _('The password of the Poweradmin administrator. This administrator has full rights to Poweradmin using the web interface.') . "</td>\n";
@@ -159,6 +169,8 @@ function get_random_key() {
         $db_host = $_POST['host'];
         $db_port = $_POST['dbport'];
         $db_name = $_POST['name'];
+        $db_charset = $_POST['charset'];
+        $db_collation = $_POST['collation'];
         $db_type = $_POST['type'];
         if ($db_type == 'sqlite') {
             $db_file = $db_name;
@@ -170,11 +182,24 @@ function get_random_key() {
         $db->loadModule('Extended');
         include_once("database-structure.inc.php");
         $current_tables = $db->listTables();
+
         foreach ($def_tables as $table) {
-            if (in_array($table['table_name'], $current_tables))
+            if (in_array($table['table_name'], $current_tables)) {
                 $db->dropTable($table['table_name']);
-            $db->createTable($table['table_name'], $table['fields'], $table['options']);
+            }
+
+            $options = $table['options'];
+
+            if ($db_charset) {
+                $options['charset'] = $db_charset;
+            }
+
+            if ($db_collation) {
+                $options['collation'] = $db_collation;
+            }
+            $db->createTable($table['table_name'], $table['fields'], $options);
         }
+
         $fill_perm_items = $db->prepare('INSERT INTO perm_items VALUES (?, ?, ?)');
         $db->extended->executeMultiple($fill_perm_items, $def_permissions);
         if (method_exists($fill_perm_items, 'free')) {
@@ -227,6 +252,7 @@ function get_random_key() {
         echo "<input type=\"hidden\" name=\"db_port\" value=\"" . $db_port . "\">";
         echo "<input type=\"hidden\" name=\"db_name\" value=\"" . $db_name . "\">";
         echo "<input type=\"hidden\" name=\"db_type\" value=\"" . $db_type . "\">";
+        echo "<input type=\"hidden\" name=\"db_charset\" value=\"" . $db_charset . "\">";
         echo "<input type=\"hidden\" name=\"pa_pass\" value=\"" . $pa_pass . "\">";
         echo "<input type=\"hidden\" name=\"step\" value=\"" . $step . "\">";
         echo "<input type=\"hidden\" name=\"language\" value=\"" . $language . "\">";
@@ -242,6 +268,7 @@ function get_random_key() {
         $db_port = $_POST['db_port'];
         $db_name = $_POST['db_name'];
         $db_type = $_POST['db_type'];
+        $db_charset = $_POST['db_charset'];
         if ($db_type == 'sqlite') {
             $db_file = $db_name;
         } else {
@@ -297,6 +324,7 @@ function get_random_key() {
         echo "<input type=\"hidden\" name=\"db_type\" value=\"" . $db_type . "\">";
         echo "<input type=\"hidden\" name=\"db_user\" value=\"" . $db_user . "\">";
         echo "<input type=\"hidden\" name=\"db_pass\" value=\"" . $db_pass . "\">";
+        echo "<input type=\"hidden\" name=\"db_charset\" value=\"" . $db_charset . "\">";
         if ($db_type != 'sqlite') {
             echo "<input type=\"hidden\" name=\"pa_db_user\" value=\"" . $pa_db_user . "\">";
             echo "<input type=\"hidden\" name=\"pa_db_pass\" value=\"" . $pa_db_pass . "\">";
@@ -328,6 +356,7 @@ function get_random_key() {
                 "\$db_name\t\t= '" . $_POST['db_name'] . "';\n" .
                 (($db_type == 'mysql' && $db_port != 3306) || ($db_type == 'pgsql' && $db_port != 5432) ? "\$db_port\t\t= '" . $db_port . "';\n" : '')) .
                 "\$db_type\t\t= '" . $_POST['db_type'] . "';\n" .
+                "\$db_charset\t\t= '" . $_POST['db_charset'] . "';\n" .
                 "\n" .
                 "\$session_key\t\t= '" . get_random_key() . "';\n" .
                 "\n" .

From 46cc9c5c88a8fda42c9e5f68f72af020ece2a688 Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <edmondas@poweradmin.org>
Date: Fri, 11 Mar 2016 18:25:24 +0200
Subject: [PATCH 60/61] Added composer configuration also generated PSR-4 style
 autoloader.

---
 composer.json                           |  21 ++
 vendor/autoload.php                     |   7 +
 vendor/composer/ClassLoader.php         | 413 ++++++++++++++++++++++++
 vendor/composer/autoload_classmap.php   |   9 +
 vendor/composer/autoload_namespaces.php |   9 +
 vendor/composer/autoload_psr4.php       |  10 +
 vendor/composer/autoload_real.php       |  50 +++
 7 files changed, 519 insertions(+)
 create mode 100644 composer.json
 create mode 100644 vendor/autoload.php
 create mode 100644 vendor/composer/ClassLoader.php
 create mode 100644 vendor/composer/autoload_classmap.php
 create mode 100644 vendor/composer/autoload_namespaces.php
 create mode 100644 vendor/composer/autoload_psr4.php
 create mode 100644 vendor/composer/autoload_real.php

diff --git a/composer.json b/composer.json
new file mode 100644
index 000000000..214f1c43f
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,21 @@
+{
+  "description": "A web-based control panel for PowerDNS.",
+  "name": "poweradmin/poweradmin",
+  "type": "project",
+  "homepage": "http://www.poweradmin.org",
+  "license": "GPL-3.0",
+  "support": {
+    "issues": "https://github.com/poweradmin/poweradmin/issues",
+    "wiki": "https://github.com/poweradmin/poweradmin/wiki",
+    "irc": "irc://irc.oftc.net/poweradmin",
+    "source": "https://github.com/poweradmin/poweradmin"
+  },
+  "require": {
+    "php": ">=5.5.0"
+  },
+  "autoload": {
+    "psr-4": {
+      "Poweradmin\\": "vendor/poweradmin/"
+    }
+  }
+}
\ No newline at end of file
diff --git a/vendor/autoload.php b/vendor/autoload.php
new file mode 100644
index 000000000..e45ee0724
--- /dev/null
+++ b/vendor/autoload.php
@@ -0,0 +1,7 @@
+<?php
+
+// autoload.php @generated by Composer
+
+require_once __DIR__ . '/composer' . '/autoload_real.php';
+
+return ComposerAutoloaderInit02fd231869a48df50cb631d6580008da::getLoader();
diff --git a/vendor/composer/ClassLoader.php b/vendor/composer/ClassLoader.php
new file mode 100644
index 000000000..4e05d3b15
--- /dev/null
+++ b/vendor/composer/ClassLoader.php
@@ -0,0 +1,413 @@
+<?php
+
+/*
+ * This file is part of Composer.
+ *
+ * (c) Nils Adermann <naderman@naderman.de>
+ *     Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Composer\Autoload;
+
+/**
+ * ClassLoader implements a PSR-0 class loader
+ *
+ * See https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-0.md
+ *
+ *     $loader = new \Composer\Autoload\ClassLoader();
+ *
+ *     // register classes with namespaces
+ *     $loader->add('Symfony\Component', __DIR__.'/component');
+ *     $loader->add('Symfony',           __DIR__.'/framework');
+ *
+ *     // activate the autoloader
+ *     $loader->register();
+ *
+ *     // to enable searching the include path (eg. for PEAR packages)
+ *     $loader->setUseIncludePath(true);
+ *
+ * In this example, if you try to use a class in the Symfony\Component
+ * namespace or one of its children (Symfony\Component\Console for instance),
+ * the autoloader will first look for the class under the component/
+ * directory, and it will then fallback to the framework/ directory if not
+ * found before giving up.
+ *
+ * This class is loosely based on the Symfony UniversalClassLoader.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+class ClassLoader
+{
+    // PSR-4
+    private $prefixLengthsPsr4 = array();
+    private $prefixDirsPsr4 = array();
+    private $fallbackDirsPsr4 = array();
+
+    // PSR-0
+    private $prefixesPsr0 = array();
+    private $fallbackDirsPsr0 = array();
+
+    private $useIncludePath = false;
+    private $classMap = array();
+
+    private $classMapAuthoritative = false;
+
+    public function getPrefixes()
+    {
+        if (!empty($this->prefixesPsr0)) {
+            return call_user_func_array('array_merge', $this->prefixesPsr0);
+        }
+
+        return array();
+    }
+
+    public function getPrefixesPsr4()
+    {
+        return $this->prefixDirsPsr4;
+    }
+
+    public function getFallbackDirs()
+    {
+        return $this->fallbackDirsPsr0;
+    }
+
+    public function getFallbackDirsPsr4()
+    {
+        return $this->fallbackDirsPsr4;
+    }
+
+    public function getClassMap()
+    {
+        return $this->classMap;
+    }
+
+    /**
+     * @param array $classMap Class to filename map
+     */
+    public function addClassMap(array $classMap)
+    {
+        if ($this->classMap) {
+            $this->classMap = array_merge($this->classMap, $classMap);
+        } else {
+            $this->classMap = $classMap;
+        }
+    }
+
+    /**
+     * Registers a set of PSR-0 directories for a given prefix, either
+     * appending or prepending to the ones previously set for this prefix.
+     *
+     * @param string       $prefix  The prefix
+     * @param array|string $paths   The PSR-0 root directories
+     * @param bool         $prepend Whether to prepend the directories
+     */
+    public function add($prefix, $paths, $prepend = false)
+    {
+        if (!$prefix) {
+            if ($prepend) {
+                $this->fallbackDirsPsr0 = array_merge(
+                    (array) $paths,
+                    $this->fallbackDirsPsr0
+                );
+            } else {
+                $this->fallbackDirsPsr0 = array_merge(
+                    $this->fallbackDirsPsr0,
+                    (array) $paths
+                );
+            }
+
+            return;
+        }
+
+        $first = $prefix[0];
+        if (!isset($this->prefixesPsr0[$first][$prefix])) {
+            $this->prefixesPsr0[$first][$prefix] = (array) $paths;
+
+            return;
+        }
+        if ($prepend) {
+            $this->prefixesPsr0[$first][$prefix] = array_merge(
+                (array) $paths,
+                $this->prefixesPsr0[$first][$prefix]
+            );
+        } else {
+            $this->prefixesPsr0[$first][$prefix] = array_merge(
+                $this->prefixesPsr0[$first][$prefix],
+                (array) $paths
+            );
+        }
+    }
+
+    /**
+     * Registers a set of PSR-4 directories for a given namespace, either
+     * appending or prepending to the ones previously set for this namespace.
+     *
+     * @param string       $prefix  The prefix/namespace, with trailing '\\'
+     * @param array|string $paths   The PSR-0 base directories
+     * @param bool         $prepend Whether to prepend the directories
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function addPsr4($prefix, $paths, $prepend = false)
+    {
+        if (!$prefix) {
+            // Register directories for the root namespace.
+            if ($prepend) {
+                $this->fallbackDirsPsr4 = array_merge(
+                    (array) $paths,
+                    $this->fallbackDirsPsr4
+                );
+            } else {
+                $this->fallbackDirsPsr4 = array_merge(
+                    $this->fallbackDirsPsr4,
+                    (array) $paths
+                );
+            }
+        } elseif (!isset($this->prefixDirsPsr4[$prefix])) {
+            // Register directories for a new namespace.
+            $length = strlen($prefix);
+            if ('\\' !== $prefix[$length - 1]) {
+                throw new \InvalidArgumentException("A non-empty PSR-4 prefix must end with a namespace separator.");
+            }
+            $this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;
+            $this->prefixDirsPsr4[$prefix] = (array) $paths;
+        } elseif ($prepend) {
+            // Prepend directories for an already registered namespace.
+            $this->prefixDirsPsr4[$prefix] = array_merge(
+                (array) $paths,
+                $this->prefixDirsPsr4[$prefix]
+            );
+        } else {
+            // Append directories for an already registered namespace.
+            $this->prefixDirsPsr4[$prefix] = array_merge(
+                $this->prefixDirsPsr4[$prefix],
+                (array) $paths
+            );
+        }
+    }
+
+    /**
+     * Registers a set of PSR-0 directories for a given prefix,
+     * replacing any others previously set for this prefix.
+     *
+     * @param string       $prefix The prefix
+     * @param array|string $paths  The PSR-0 base directories
+     */
+    public function set($prefix, $paths)
+    {
+        if (!$prefix) {
+            $this->fallbackDirsPsr0 = (array) $paths;
+        } else {
+            $this->prefixesPsr0[$prefix[0]][$prefix] = (array) $paths;
+        }
+    }
+
+    /**
+     * Registers a set of PSR-4 directories for a given namespace,
+     * replacing any others previously set for this namespace.
+     *
+     * @param string       $prefix The prefix/namespace, with trailing '\\'
+     * @param array|string $paths  The PSR-4 base directories
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function setPsr4($prefix, $paths)
+    {
+        if (!$prefix) {
+            $this->fallbackDirsPsr4 = (array) $paths;
+        } else {
+            $length = strlen($prefix);
+            if ('\\' !== $prefix[$length - 1]) {
+                throw new \InvalidArgumentException("A non-empty PSR-4 prefix must end with a namespace separator.");
+            }
+            $this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;
+            $this->prefixDirsPsr4[$prefix] = (array) $paths;
+        }
+    }
+
+    /**
+     * Turns on searching the include path for class files.
+     *
+     * @param bool $useIncludePath
+     */
+    public function setUseIncludePath($useIncludePath)
+    {
+        $this->useIncludePath = $useIncludePath;
+    }
+
+    /**
+     * Can be used to check if the autoloader uses the include path to check
+     * for classes.
+     *
+     * @return bool
+     */
+    public function getUseIncludePath()
+    {
+        return $this->useIncludePath;
+    }
+
+    /**
+     * Turns off searching the prefix and fallback directories for classes
+     * that have not been registered with the class map.
+     *
+     * @param bool $classMapAuthoritative
+     */
+    public function setClassMapAuthoritative($classMapAuthoritative)
+    {
+        $this->classMapAuthoritative = $classMapAuthoritative;
+    }
+
+    /**
+     * Should class lookup fail if not found in the current class map?
+     *
+     * @return bool
+     */
+    public function isClassMapAuthoritative()
+    {
+        return $this->classMapAuthoritative;
+    }
+
+    /**
+     * Registers this instance as an autoloader.
+     *
+     * @param bool $prepend Whether to prepend the autoloader or not
+     */
+    public function register($prepend = false)
+    {
+        spl_autoload_register(array($this, 'loadClass'), true, $prepend);
+    }
+
+    /**
+     * Unregisters this instance as an autoloader.
+     */
+    public function unregister()
+    {
+        spl_autoload_unregister(array($this, 'loadClass'));
+    }
+
+    /**
+     * Loads the given class or interface.
+     *
+     * @param  string    $class The name of the class
+     * @return bool|null True if loaded, null otherwise
+     */
+    public function loadClass($class)
+    {
+        if ($file = $this->findFile($class)) {
+            includeFile($file);
+
+            return true;
+        }
+    }
+
+    /**
+     * Finds the path to the file where the class is defined.
+     *
+     * @param string $class The name of the class
+     *
+     * @return string|false The path if found, false otherwise
+     */
+    public function findFile($class)
+    {
+        // work around for PHP 5.3.0 - 5.3.2 https://bugs.php.net/50731
+        if ('\\' == $class[0]) {
+            $class = substr($class, 1);
+        }
+
+        // class map lookup
+        if (isset($this->classMap[$class])) {
+            return $this->classMap[$class];
+        }
+        if ($this->classMapAuthoritative) {
+            return false;
+        }
+
+        $file = $this->findFileWithExtension($class, '.php');
+
+        // Search for Hack files if we are running on HHVM
+        if ($file === null && defined('HHVM_VERSION')) {
+            $file = $this->findFileWithExtension($class, '.hh');
+        }
+
+        if ($file === null) {
+            // Remember that this class does not exist.
+            return $this->classMap[$class] = false;
+        }
+
+        return $file;
+    }
+
+    private function findFileWithExtension($class, $ext)
+    {
+        // PSR-4 lookup
+        $logicalPathPsr4 = strtr($class, '\\', DIRECTORY_SEPARATOR) . $ext;
+
+        $first = $class[0];
+        if (isset($this->prefixLengthsPsr4[$first])) {
+            foreach ($this->prefixLengthsPsr4[$first] as $prefix => $length) {
+                if (0 === strpos($class, $prefix)) {
+                    foreach ($this->prefixDirsPsr4[$prefix] as $dir) {
+                        if (is_file($file = $dir . DIRECTORY_SEPARATOR . substr($logicalPathPsr4, $length))) {
+                            return $file;
+                        }
+                    }
+                }
+            }
+        }
+
+        // PSR-4 fallback dirs
+        foreach ($this->fallbackDirsPsr4 as $dir) {
+            if (is_file($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr4)) {
+                return $file;
+            }
+        }
+
+        // PSR-0 lookup
+        if (false !== $pos = strrpos($class, '\\')) {
+            // namespaced class name
+            $logicalPathPsr0 = substr($logicalPathPsr4, 0, $pos + 1)
+                . strtr(substr($logicalPathPsr4, $pos + 1), '_', DIRECTORY_SEPARATOR);
+        } else {
+            // PEAR-like class name
+            $logicalPathPsr0 = strtr($class, '_', DIRECTORY_SEPARATOR) . $ext;
+        }
+
+        if (isset($this->prefixesPsr0[$first])) {
+            foreach ($this->prefixesPsr0[$first] as $prefix => $dirs) {
+                if (0 === strpos($class, $prefix)) {
+                    foreach ($dirs as $dir) {
+                        if (is_file($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
+                            return $file;
+                        }
+                    }
+                }
+            }
+        }
+
+        // PSR-0 fallback dirs
+        foreach ($this->fallbackDirsPsr0 as $dir) {
+            if (is_file($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
+                return $file;
+            }
+        }
+
+        // PSR-0 include paths.
+        if ($this->useIncludePath && $file = stream_resolve_include_path($logicalPathPsr0)) {
+            return $file;
+        }
+    }
+}
+
+/**
+ * Scope isolated include.
+ *
+ * Prevents access to $this/self from included files.
+ */
+function includeFile($file)
+{
+    include $file;
+}
diff --git a/vendor/composer/autoload_classmap.php b/vendor/composer/autoload_classmap.php
new file mode 100644
index 000000000..7a91153b0
--- /dev/null
+++ b/vendor/composer/autoload_classmap.php
@@ -0,0 +1,9 @@
+<?php
+
+// autoload_classmap.php @generated by Composer
+
+$vendorDir = dirname(dirname(__FILE__));
+$baseDir = dirname($vendorDir);
+
+return array(
+);
diff --git a/vendor/composer/autoload_namespaces.php b/vendor/composer/autoload_namespaces.php
new file mode 100644
index 000000000..b7fc0125d
--- /dev/null
+++ b/vendor/composer/autoload_namespaces.php
@@ -0,0 +1,9 @@
+<?php
+
+// autoload_namespaces.php @generated by Composer
+
+$vendorDir = dirname(dirname(__FILE__));
+$baseDir = dirname($vendorDir);
+
+return array(
+);
diff --git a/vendor/composer/autoload_psr4.php b/vendor/composer/autoload_psr4.php
new file mode 100644
index 000000000..72631401e
--- /dev/null
+++ b/vendor/composer/autoload_psr4.php
@@ -0,0 +1,10 @@
+<?php
+
+// autoload_psr4.php @generated by Composer
+
+$vendorDir = dirname(dirname(__FILE__));
+$baseDir = dirname($vendorDir);
+
+return array(
+    'Poweradmin\\' => array($vendorDir . '/poweradmin'),
+);
diff --git a/vendor/composer/autoload_real.php b/vendor/composer/autoload_real.php
new file mode 100644
index 000000000..092883fa3
--- /dev/null
+++ b/vendor/composer/autoload_real.php
@@ -0,0 +1,50 @@
+<?php
+
+// autoload_real.php @generated by Composer
+
+class ComposerAutoloaderInit02fd231869a48df50cb631d6580008da
+{
+    private static $loader;
+
+    public static function loadClassLoader($class)
+    {
+        if ('Composer\Autoload\ClassLoader' === $class) {
+            require __DIR__ . '/ClassLoader.php';
+        }
+    }
+
+    public static function getLoader()
+    {
+        if (null !== self::$loader) {
+            return self::$loader;
+        }
+
+        spl_autoload_register(array('ComposerAutoloaderInit02fd231869a48df50cb631d6580008da', 'loadClassLoader'), true, true);
+        self::$loader = $loader = new \Composer\Autoload\ClassLoader();
+        spl_autoload_unregister(array('ComposerAutoloaderInit02fd231869a48df50cb631d6580008da', 'loadClassLoader'));
+
+        $map = require __DIR__ . '/autoload_namespaces.php';
+        foreach ($map as $namespace => $path) {
+            $loader->set($namespace, $path);
+        }
+
+        $map = require __DIR__ . '/autoload_psr4.php';
+        foreach ($map as $namespace => $path) {
+            $loader->setPsr4($namespace, $path);
+        }
+
+        $classMap = require __DIR__ . '/autoload_classmap.php';
+        if ($classMap) {
+            $loader->addClassMap($classMap);
+        }
+
+        $loader->register(true);
+
+        return $loader;
+    }
+}
+
+function composerRequire02fd231869a48df50cb631d6580008da($file)
+{
+    require $file;
+}

From 2deded1de4630293595aae05bb6d06d9f0fc8365 Mon Sep 17 00:00:00 2001
From: Edmondas Girkantas <edmondas@poweradmin.org>
Date: Fri, 11 Mar 2016 18:31:03 +0200
Subject: [PATCH 61/61] Added twig as dependency.

---
 composer.json                                 |    5 +-
 vendor/composer/autoload_classmap.php         |  185 ++
 vendor/composer/autoload_namespaces.php       |    1 +
 vendor/composer/installed.json                |   65 +
 vendor/twig/twig/.editorconfig                |   18 +
 vendor/twig/twig/.gitignore                   |    5 +
 vendor/twig/twig/.travis.yml                  |   39 +
 vendor/twig/twig/CHANGELOG                    |  828 +++++++++
 vendor/twig/twig/LICENSE                      |   31 +
 vendor/twig/twig/README.rst                   |   15 +
 vendor/twig/twig/composer.json                |   46 +
 vendor/twig/twig/doc/advanced.rst             |  872 ++++++++++
 vendor/twig/twig/doc/advanced_legacy.rst      |  887 ++++++++++
 vendor/twig/twig/doc/api.rst                  |  552 ++++++
 vendor/twig/twig/doc/coding_standards.rst     |  101 ++
 vendor/twig/twig/doc/deprecated.rst           |  162 ++
 vendor/twig/twig/doc/filters/abs.rst          |   18 +
 vendor/twig/twig/doc/filters/batch.rst        |   51 +
 vendor/twig/twig/doc/filters/capitalize.rst   |   11 +
 .../twig/doc/filters/convert_encoding.rst     |   28 +
 vendor/twig/twig/doc/filters/date.rst         |   94 +
 vendor/twig/twig/doc/filters/date_modify.rst  |   23 +
 vendor/twig/twig/doc/filters/default.rst      |   33 +
 vendor/twig/twig/doc/filters/escape.rst       |  116 ++
 vendor/twig/twig/doc/filters/first.rst        |   25 +
 vendor/twig/twig/doc/filters/format.rst       |   16 +
 vendor/twig/twig/doc/filters/index.rst        |   37 +
 vendor/twig/twig/doc/filters/join.rst         |   23 +
 vendor/twig/twig/doc/filters/json_encode.rst  |   21 +
 vendor/twig/twig/doc/filters/keys.rst         |   11 +
 vendor/twig/twig/doc/filters/last.rst         |   25 +
 vendor/twig/twig/doc/filters/length.rst       |   11 +
 vendor/twig/twig/doc/filters/lower.rst        |   10 +
 vendor/twig/twig/doc/filters/merge.rst        |   48 +
 vendor/twig/twig/doc/filters/nl2br.rst        |   22 +
 .../twig/twig/doc/filters/number_format.rst   |   45 +
 vendor/twig/twig/doc/filters/raw.rst          |   36 +
 vendor/twig/twig/doc/filters/replace.rst      |   19 +
 vendor/twig/twig/doc/filters/reverse.rst      |   47 +
 vendor/twig/twig/doc/filters/round.rst        |   37 +
 vendor/twig/twig/doc/filters/slice.rst        |   71 +
 vendor/twig/twig/doc/filters/sort.rst         |   18 +
 vendor/twig/twig/doc/filters/split.rst        |   53 +
 vendor/twig/twig/doc/filters/striptags.rst    |   15 +
 vendor/twig/twig/doc/filters/title.rst        |   11 +
 vendor/twig/twig/doc/filters/trim.rst         |   29 +
 vendor/twig/twig/doc/filters/upper.rst        |   10 +
 vendor/twig/twig/doc/filters/url_encode.rst   |   34 +
 vendor/twig/twig/doc/functions/attribute.rst  |   26 +
 vendor/twig/twig/doc/functions/block.rst      |   15 +
 vendor/twig/twig/doc/functions/constant.rst   |   18 +
 vendor/twig/twig/doc/functions/cycle.rst      |   28 +
 vendor/twig/twig/doc/functions/date.rst       |   52 +
 vendor/twig/twig/doc/functions/dump.rst       |   69 +
 vendor/twig/twig/doc/functions/include.rst    |   80 +
 vendor/twig/twig/doc/functions/index.rst      |   20 +
 vendor/twig/twig/doc/functions/max.rst        |   20 +
 vendor/twig/twig/doc/functions/min.rst        |   20 +
 vendor/twig/twig/doc/functions/parent.rst     |   20 +
 vendor/twig/twig/doc/functions/random.rst     |   29 +
 vendor/twig/twig/doc/functions/range.rst      |   45 +
 vendor/twig/twig/doc/functions/source.rst     |   32 +
 .../doc/functions/template_from_string.rst    |   32 +
 vendor/twig/twig/doc/index.rst                |   19 +
 vendor/twig/twig/doc/installation.rst         |  116 ++
 vendor/twig/twig/doc/internals.rst            |  138 ++
 vendor/twig/twig/doc/intro.rst                |   85 +
 vendor/twig/twig/doc/recipes.rst              |  518 ++++++
 vendor/twig/twig/doc/tags/autoescape.rst      |   83 +
 vendor/twig/twig/doc/tags/block.rst           |   11 +
 vendor/twig/twig/doc/tags/do.rst              |   12 +
 vendor/twig/twig/doc/tags/embed.rst           |  178 ++
 vendor/twig/twig/doc/tags/extends.rst         |  268 +++
 vendor/twig/twig/doc/tags/filter.rst          |   21 +
 vendor/twig/twig/doc/tags/flush.rst           |   17 +
 vendor/twig/twig/doc/tags/for.rst             |  172 ++
 vendor/twig/twig/doc/tags/from.rst            |    8 +
 vendor/twig/twig/doc/tags/if.rst              |   76 +
 vendor/twig/twig/doc/tags/import.rst          |   57 +
 vendor/twig/twig/doc/tags/include.rst         |   86 +
 vendor/twig/twig/doc/tags/index.rst           |   24 +
 vendor/twig/twig/doc/tags/macro.rst           |   86 +
 vendor/twig/twig/doc/tags/sandbox.rst         |   30 +
 vendor/twig/twig/doc/tags/set.rst             |   78 +
 vendor/twig/twig/doc/tags/spaceless.rst       |   37 +
 vendor/twig/twig/doc/tags/use.rst             |  124 ++
 vendor/twig/twig/doc/tags/verbatim.rst        |   24 +
 vendor/twig/twig/doc/templates.rst            |  907 ++++++++++
 vendor/twig/twig/doc/tests/constant.rst       |   22 +
 vendor/twig/twig/doc/tests/defined.rst        |   30 +
 vendor/twig/twig/doc/tests/divisibleby.rst    |   14 +
 vendor/twig/twig/doc/tests/empty.rst          |   11 +
 vendor/twig/twig/doc/tests/even.rst           |   10 +
 vendor/twig/twig/doc/tests/index.rst          |   15 +
 vendor/twig/twig/doc/tests/iterable.rst       |   19 +
 vendor/twig/twig/doc/tests/null.rst           |   12 +
 vendor/twig/twig/doc/tests/odd.rst            |   10 +
 vendor/twig/twig/doc/tests/sameas.rst         |   14 +
 vendor/twig/twig/ext/twig/.gitignore          |   30 +
 vendor/twig/twig/ext/twig/config.m4           |    8 +
 vendor/twig/twig/ext/twig/config.w32          |    8 +
 vendor/twig/twig/ext/twig/php_twig.h          |   35 +
 vendor/twig/twig/ext/twig/twig.c              | 1127 ++++++++++++
 vendor/twig/twig/lib/Twig/Autoloader.php      |   54 +
 vendor/twig/twig/lib/Twig/BaseNodeVisitor.php |   62 +
 .../twig/twig/lib/Twig/Cache/Filesystem.php   |   96 +
 vendor/twig/twig/lib/Twig/Cache/Null.php      |   48 +
 vendor/twig/twig/lib/Twig/CacheInterface.php  |   56 +
 vendor/twig/twig/lib/Twig/Compiler.php        |  277 +++
 .../twig/twig/lib/Twig/CompilerInterface.php  |   36 +
 vendor/twig/twig/lib/Twig/Environment.php     | 1381 +++++++++++++++
 vendor/twig/twig/lib/Twig/Error.php           |  272 +++
 vendor/twig/twig/lib/Twig/Error/Loader.php    |   31 +
 vendor/twig/twig/lib/Twig/Error/Runtime.php   |   20 +
 vendor/twig/twig/lib/Twig/Error/Syntax.php    |   53 +
 .../twig/lib/Twig/ExistsLoaderInterface.php   |   29 +
 .../twig/twig/lib/Twig/ExpressionParser.php   |  647 +++++++
 vendor/twig/twig/lib/Twig/Extension.php       |   79 +
 vendor/twig/twig/lib/Twig/Extension/Core.php  | 1548 +++++++++++++++++
 vendor/twig/twig/lib/Twig/Extension/Debug.php |   61 +
 .../twig/twig/lib/Twig/Extension/Escaper.php  |  102 ++
 .../lib/Twig/Extension/GlobalsInterface.php   |   22 +
 .../Twig/Extension/InitRuntimeInterface.php   |   22 +
 .../twig/lib/Twig/Extension/Optimizer.php     |   29 +
 .../twig/twig/lib/Twig/Extension/Profiler.php |   46 +
 .../twig/twig/lib/Twig/Extension/Sandbox.php  |   97 ++
 .../twig/twig/lib/Twig/Extension/Staging.php  |   94 +
 .../twig/lib/Twig/Extension/StringLoader.php  |   41 +
 .../twig/twig/lib/Twig/ExtensionInterface.php |   87 +
 .../Twig/FileExtensionEscapingStrategy.php    |   58 +
 vendor/twig/twig/lib/Twig/Filter.php          |   84 +
 vendor/twig/twig/lib/Twig/Filter/Function.php |   40 +
 vendor/twig/twig/lib/Twig/Filter/Method.php   |   42 +
 vendor/twig/twig/lib/Twig/Filter/Node.php     |   42 +
 .../twig/lib/Twig/FilterCallableInterface.php |   24 +
 vendor/twig/twig/lib/Twig/FilterInterface.php |   43 +
 vendor/twig/twig/lib/Twig/Function.php        |   74 +
 .../twig/twig/lib/Twig/Function/Function.php  |   41 +
 vendor/twig/twig/lib/Twig/Function/Method.php |   43 +
 vendor/twig/twig/lib/Twig/Function/Node.php   |   42 +
 .../lib/Twig/FunctionCallableInterface.php    |   24 +
 .../twig/twig/lib/Twig/FunctionInterface.php  |   40 +
 vendor/twig/twig/lib/Twig/Lexer.php           |  411 +++++
 vendor/twig/twig/lib/Twig/LexerInterface.php  |   32 +
 vendor/twig/twig/lib/Twig/Loader/Array.php    |   95 +
 vendor/twig/twig/lib/Twig/Loader/Chain.php    |  138 ++
 .../twig/twig/lib/Twig/Loader/Filesystem.php  |  260 +++
 vendor/twig/twig/lib/Twig/Loader/String.php   |   63 +
 vendor/twig/twig/lib/Twig/LoaderInterface.php |   53 +
 vendor/twig/twig/lib/Twig/Markup.php          |   37 +
 vendor/twig/twig/lib/Twig/Node.php            |  231 +++
 vendor/twig/twig/lib/Twig/Node/AutoEscape.php |   34 +
 vendor/twig/twig/lib/Twig/Node/Block.php      |   39 +
 .../twig/lib/Twig/Node/BlockReference.php     |   32 +
 vendor/twig/twig/lib/Twig/Node/Body.php       |   19 +
 .../twig/twig/lib/Twig/Node/CheckSecurity.php |   78 +
 vendor/twig/twig/lib/Twig/Node/Do.php         |   33 +
 vendor/twig/twig/lib/Twig/Node/Embed.php      |   42 +
 vendor/twig/twig/lib/Twig/Node/Expression.php |   20 +
 .../twig/lib/Twig/Node/Expression/Array.php   |   81 +
 .../lib/Twig/Node/Expression/AssignName.php   |   23 +
 .../twig/lib/Twig/Node/Expression/Binary.php  |   35 +
 .../lib/Twig/Node/Expression/Binary/Add.php   |   18 +
 .../lib/Twig/Node/Expression/Binary/And.php   |   18 +
 .../Node/Expression/Binary/BitwiseAnd.php     |   18 +
 .../Twig/Node/Expression/Binary/BitwiseOr.php |   18 +
 .../Node/Expression/Binary/BitwiseXor.php     |   18 +
 .../Twig/Node/Expression/Binary/Concat.php    |   18 +
 .../lib/Twig/Node/Expression/Binary/Div.php   |   18 +
 .../Twig/Node/Expression/Binary/EndsWith.php  |   30 +
 .../lib/Twig/Node/Expression/Binary/Equal.php |   17 +
 .../Twig/Node/Expression/Binary/FloorDiv.php  |   24 +
 .../Twig/Node/Expression/Binary/Greater.php   |   17 +
 .../Node/Expression/Binary/GreaterEqual.php   |   17 +
 .../lib/Twig/Node/Expression/Binary/In.php    |   28 +
 .../lib/Twig/Node/Expression/Binary/Less.php  |   17 +
 .../Twig/Node/Expression/Binary/LessEqual.php |   17 +
 .../Twig/Node/Expression/Binary/Matches.php   |   28 +
 .../lib/Twig/Node/Expression/Binary/Mod.php   |   18 +
 .../lib/Twig/Node/Expression/Binary/Mul.php   |   18 +
 .../Twig/Node/Expression/Binary/NotEqual.php  |   17 +
 .../lib/Twig/Node/Expression/Binary/NotIn.php |   28 +
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 .../lib/Twig/Profiler/Node/LeaveProfile.php   |   34 +
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 .../Tests/Fixtures/tags/autoescape/basic.test |   26 +
 .../Fixtures/tags/autoescape/blocks.test      |   12 +
 .../tags/autoescape/double_escaping.test      |   10 +
 .../Fixtures/tags/autoescape/functions.test   |   83 +
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 .../tags/autoescape/with_filters.test         |  131 ++
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 .../Fixtures/tags/filter/with_for_tag.test    |   13 +
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 .../Fixtures/tags/for/loop_context_local.test |   10 +
 .../Fixtures/tags/for/loop_not_defined.test   |   10 +
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 .../Fixtures/tags/include/ignore_missing.test |   10 +
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 .../Fixtures/tags/include/missing_nested.test |   16 +
 .../Tests/Fixtures/tags/include/only.test     |   16 +
 .../tags/include/template_instance.test       |   10 +
 .../tags/include/templates_as_array.test      |   12 +
 .../Fixtures/tags/include/with_variables.test |   12 +
 .../Fixtures/tags/inheritance/basic.test      |   14 +
 .../Fixtures/tags/inheritance/block_expr.test |   32 +
 .../tags/inheritance/block_expr2.test         |   34 +
 .../tags/inheritance/conditional.test         |   14 +
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 .../tags/inheritance/extends_as_array.test    |   12 +
 .../extends_as_array_with_empty_name.test     |   12 +
 .../extends_as_array_with_null_name.test      |   12 +
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 .../tags/inheritance/multiple_dynamic.test    |   22 +
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 .../tags/inheritance/parent_nested.test       |   28 +
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 .../Fixtures/tags/macro/reserved_name.test    |   10 +
 .../Fixtures/tags/macro/self_import.test      |   17 +
 .../Fixtures/tags/macro/special_chars.test    |   14 +
 .../Fixtures/tags/macro/super_globals.test    |   14 +
 .../Tests/Fixtures/tags/raw/basic.legacy.test |   10 +
 .../tags/raw/mixed_usage_with_raw.legacy.test |   10 +
 .../tags/raw/whitespace_control.legacy.test   |   56 +
 .../Fixtures/tags/sandbox/not_valid1.test     |   11 +
 .../Fixtures/tags/sandbox/not_valid2.test     |   14 +
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 .../Twig/Tests/Fixtures/tags/use/aliases.test |   12 +
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 .../Tests/Fixtures/tags/use/inheritance2.test |   24 +
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 .../Fixtures/tags/use/multiple_aliases.test   |   23 +
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 .../Fixtures/tags/use/parent_block2.test      |   24 +
 .../Fixtures/tags/use/parent_block3.test      |   38 +
 .../Tests/Fixtures/tags/verbatim/basic.test   |   10 +
 .../tags/verbatim/mixed_usage_with_raw.test   |   10 +
 .../tags/verbatim/whitespace_control.test     |   56 +
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 .../Twig/Tests/Fixtures/tests/constant.test   |   14 +
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 .../test/Twig/Tests/Fixtures/tests/empty.test |   45 +
 .../test/Twig/Tests/Fixtures/tests/even.test  |   14 +
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 .../twig/test/Twig/Tests/IntegrationTest.php  |  229 +++
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 .../test/Twig/Tests/LegacyIntegrationTest.php |   54 +
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 ...y_inheritance_nonexistent_parent.html.twig |    3 +
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 .../Tests/Loader/Fixtures/normal/index.html   |    1 +
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 .../Node/Expression/PHP53/FilterInclude.php   |    6 +
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 .../Twig/Tests/Node/Expression/ParentTest.php |   28 +
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 .../twig/test/Twig/Tests/Node/ForTest.php     |  191 ++
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 .../twig/test/Twig/Tests/Node/ImportTest.php  |   40 +
 .../twig/test/Twig/Tests/Node/IncludeTest.php |   83 +
 .../twig/test/Twig/Tests/Node/MacroTest.php   |   70 +
 .../twig/test/Twig/Tests/Node/ModuleTest.php  |  183 ++
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 .../twig/test/Twig/Tests/Node/SandboxTest.php |   44 +
 .../Twig/Tests/Node/SandboxedPrintTest.php    |   33 +
 .../twig/test/Twig/Tests/Node/SetTest.php     |   69 +
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 .../Twig/Tests/Profiler/Dumper/HtmlTest.php   |   30 +
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 .../twig/test/Twig/Tests/TokenStreamTest.php  |   70 +
 .../twig/test/Twig/Tests/escapingTest.php     |  320 ++++
 vendor/twig/twig/test/bootstrap.php           |   13 +
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 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/sandbox/not_valid1.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/sandbox/not_valid2.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/sandbox/simple.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/set/basic.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/set/capture-empty.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/set/capture.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/set/expression.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/spaceless/simple.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/special_chars.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/trim_block.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/aliases.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/basic.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/deep.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/deep_empty.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/inheritance.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/inheritance2.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/multiple.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/multiple_aliases.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/parent_block.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/parent_block2.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/parent_block3.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/verbatim/basic.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/verbatim/mixed_usage_with_raw.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tags/verbatim/whitespace_control.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tests/array.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tests/constant.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tests/defined.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tests/empty.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tests/even.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tests/in.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tests/in_with_objects.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tests/iterable.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tests/null_coalesce.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Fixtures/tests/odd.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/IntegrationTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/LegacyFixtures/test.legacy.test
 create mode 100644 vendor/twig/twig/test/Twig/Tests/LegacyIntegrationTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/LexerTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Loader/ArrayTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Loader/ChainTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Loader/FilesystemTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/array_inheritance_empty_parent.html.twig
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/array_inheritance_nonexistent_parent.html.twig
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/array_inheritance_null_parent.html.twig
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/array_inheritance_valid_parent.html.twig
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/parent.html.twig
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/spare_parent.html.twig
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/named/index.html
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/named_bis/index.html
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/named_final/index.html
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/named_quater/named_absolute.html
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/named_ter/index.html
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/normal/index.html
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/normal_bis/index.html
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/normal_final/index.html
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/normal_ter/index.html
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/themes/theme1/blocks.html.twig
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/themes/theme2/blocks.html.twig
 create mode 100644 vendor/twig/twig/test/Twig/Tests/NativeExtensionTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/AutoEscapeTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/BlockReferenceTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/BlockTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/DoTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/ArrayTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/AssignNameTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/AddTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/AndTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/ConcatTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/DivTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/FloorDivTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/ModTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/MulTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/OrTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/SubTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/CallTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/ConditionalTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/ConstantTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/FilterTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/FunctionTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/GetAttrTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/NameTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/PHP53/FilterInclude.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/PHP53/FunctionInclude.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/PHP53/TestInclude.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/ParentTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/TestTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/Unary/NegTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/Unary/NotTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/Expression/Unary/PosTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/ForTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/IfTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/ImportTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/IncludeTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/MacroTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/ModuleTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/PrintTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/SandboxTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/SandboxedPrintTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/SetTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/SpacelessTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Node/TextTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/NodeVisitor/OptimizerTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/ParserTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Profiler/Dumper/AbstractTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Profiler/Dumper/BlackfireTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Profiler/Dumper/HtmlTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Profiler/Dumper/TextTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/Profiler/ProfileTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/TemplateTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/TokenStreamTest.php
 create mode 100644 vendor/twig/twig/test/Twig/Tests/escapingTest.php
 create mode 100644 vendor/twig/twig/test/bootstrap.php

diff --git a/composer.json b/composer.json
index 214f1c43f..e9ca55f8f 100644
--- a/composer.json
+++ b/composer.json
@@ -11,11 +11,12 @@
     "source": "https://github.com/poweradmin/poweradmin"
   },
   "require": {
-    "php": ">=5.5.0"
+    "php": ">=5.5.0",
+    "twig/twig": "~1.0"
   },
   "autoload": {
     "psr-4": {
       "Poweradmin\\": "vendor/poweradmin/"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/vendor/composer/autoload_classmap.php b/vendor/composer/autoload_classmap.php
index 7a91153b0..d317baf3b 100644
--- a/vendor/composer/autoload_classmap.php
+++ b/vendor/composer/autoload_classmap.php
@@ -6,4 +6,189 @@
 $baseDir = dirname($vendorDir);
 
 return array(
+    'Twig_Autoloader' => $vendorDir . '/twig/twig/lib/Twig/Autoloader.php',
+    'Twig_BaseNodeVisitor' => $vendorDir . '/twig/twig/lib/Twig/BaseNodeVisitor.php',
+    'Twig_CacheInterface' => $vendorDir . '/twig/twig/lib/Twig/CacheInterface.php',
+    'Twig_Cache_Filesystem' => $vendorDir . '/twig/twig/lib/Twig/Cache/Filesystem.php',
+    'Twig_Cache_Null' => $vendorDir . '/twig/twig/lib/Twig/Cache/Null.php',
+    'Twig_Compiler' => $vendorDir . '/twig/twig/lib/Twig/Compiler.php',
+    'Twig_CompilerInterface' => $vendorDir . '/twig/twig/lib/Twig/CompilerInterface.php',
+    'Twig_Environment' => $vendorDir . '/twig/twig/lib/Twig/Environment.php',
+    'Twig_Error' => $vendorDir . '/twig/twig/lib/Twig/Error.php',
+    'Twig_Error_Loader' => $vendorDir . '/twig/twig/lib/Twig/Error/Loader.php',
+    'Twig_Error_Runtime' => $vendorDir . '/twig/twig/lib/Twig/Error/Runtime.php',
+    'Twig_Error_Syntax' => $vendorDir . '/twig/twig/lib/Twig/Error/Syntax.php',
+    'Twig_ExistsLoaderInterface' => $vendorDir . '/twig/twig/lib/Twig/ExistsLoaderInterface.php',
+    'Twig_ExpressionParser' => $vendorDir . '/twig/twig/lib/Twig/ExpressionParser.php',
+    'Twig_Extension' => $vendorDir . '/twig/twig/lib/Twig/Extension.php',
+    'Twig_ExtensionInterface' => $vendorDir . '/twig/twig/lib/Twig/ExtensionInterface.php',
+    'Twig_Extension_Core' => $vendorDir . '/twig/twig/lib/Twig/Extension/Core.php',
+    'Twig_Extension_Debug' => $vendorDir . '/twig/twig/lib/Twig/Extension/Debug.php',
+    'Twig_Extension_Escaper' => $vendorDir . '/twig/twig/lib/Twig/Extension/Escaper.php',
+    'Twig_Extension_GlobalsInterface' => $vendorDir . '/twig/twig/lib/Twig/Extension/GlobalsInterface.php',
+    'Twig_Extension_InitRuntimeInterface' => $vendorDir . '/twig/twig/lib/Twig/Extension/InitRuntimeInterface.php',
+    'Twig_Extension_Optimizer' => $vendorDir . '/twig/twig/lib/Twig/Extension/Optimizer.php',
+    'Twig_Extension_Profiler' => $vendorDir . '/twig/twig/lib/Twig/Extension/Profiler.php',
+    'Twig_Extension_Sandbox' => $vendorDir . '/twig/twig/lib/Twig/Extension/Sandbox.php',
+    'Twig_Extension_Staging' => $vendorDir . '/twig/twig/lib/Twig/Extension/Staging.php',
+    'Twig_Extension_StringLoader' => $vendorDir . '/twig/twig/lib/Twig/Extension/StringLoader.php',
+    'Twig_FileExtensionEscapingStrategy' => $vendorDir . '/twig/twig/lib/Twig/FileExtensionEscapingStrategy.php',
+    'Twig_Filter' => $vendorDir . '/twig/twig/lib/Twig/Filter.php',
+    'Twig_FilterCallableInterface' => $vendorDir . '/twig/twig/lib/Twig/FilterCallableInterface.php',
+    'Twig_FilterInterface' => $vendorDir . '/twig/twig/lib/Twig/FilterInterface.php',
+    'Twig_Filter_Function' => $vendorDir . '/twig/twig/lib/Twig/Filter/Function.php',
+    'Twig_Filter_Method' => $vendorDir . '/twig/twig/lib/Twig/Filter/Method.php',
+    'Twig_Filter_Node' => $vendorDir . '/twig/twig/lib/Twig/Filter/Node.php',
+    'Twig_Function' => $vendorDir . '/twig/twig/lib/Twig/Function.php',
+    'Twig_FunctionCallableInterface' => $vendorDir . '/twig/twig/lib/Twig/FunctionCallableInterface.php',
+    'Twig_FunctionInterface' => $vendorDir . '/twig/twig/lib/Twig/FunctionInterface.php',
+    'Twig_Function_Function' => $vendorDir . '/twig/twig/lib/Twig/Function/Function.php',
+    'Twig_Function_Method' => $vendorDir . '/twig/twig/lib/Twig/Function/Method.php',
+    'Twig_Function_Node' => $vendorDir . '/twig/twig/lib/Twig/Function/Node.php',
+    'Twig_Lexer' => $vendorDir . '/twig/twig/lib/Twig/Lexer.php',
+    'Twig_LexerInterface' => $vendorDir . '/twig/twig/lib/Twig/LexerInterface.php',
+    'Twig_LoaderInterface' => $vendorDir . '/twig/twig/lib/Twig/LoaderInterface.php',
+    'Twig_Loader_Array' => $vendorDir . '/twig/twig/lib/Twig/Loader/Array.php',
+    'Twig_Loader_Chain' => $vendorDir . '/twig/twig/lib/Twig/Loader/Chain.php',
+    'Twig_Loader_Filesystem' => $vendorDir . '/twig/twig/lib/Twig/Loader/Filesystem.php',
+    'Twig_Loader_String' => $vendorDir . '/twig/twig/lib/Twig/Loader/String.php',
+    'Twig_Markup' => $vendorDir . '/twig/twig/lib/Twig/Markup.php',
+    'Twig_Node' => $vendorDir . '/twig/twig/lib/Twig/Node.php',
+    'Twig_NodeInterface' => $vendorDir . '/twig/twig/lib/Twig/NodeInterface.php',
+    'Twig_NodeOutputInterface' => $vendorDir . '/twig/twig/lib/Twig/NodeOutputInterface.php',
+    'Twig_NodeTraverser' => $vendorDir . '/twig/twig/lib/Twig/NodeTraverser.php',
+    'Twig_NodeVisitorInterface' => $vendorDir . '/twig/twig/lib/Twig/NodeVisitorInterface.php',
+    'Twig_NodeVisitor_Escaper' => $vendorDir . '/twig/twig/lib/Twig/NodeVisitor/Escaper.php',
+    'Twig_NodeVisitor_Optimizer' => $vendorDir . '/twig/twig/lib/Twig/NodeVisitor/Optimizer.php',
+    'Twig_NodeVisitor_SafeAnalysis' => $vendorDir . '/twig/twig/lib/Twig/NodeVisitor/SafeAnalysis.php',
+    'Twig_NodeVisitor_Sandbox' => $vendorDir . '/twig/twig/lib/Twig/NodeVisitor/Sandbox.php',
+    'Twig_Node_AutoEscape' => $vendorDir . '/twig/twig/lib/Twig/Node/AutoEscape.php',
+    'Twig_Node_Block' => $vendorDir . '/twig/twig/lib/Twig/Node/Block.php',
+    'Twig_Node_BlockReference' => $vendorDir . '/twig/twig/lib/Twig/Node/BlockReference.php',
+    'Twig_Node_Body' => $vendorDir . '/twig/twig/lib/Twig/Node/Body.php',
+    'Twig_Node_CheckSecurity' => $vendorDir . '/twig/twig/lib/Twig/Node/CheckSecurity.php',
+    'Twig_Node_Do' => $vendorDir . '/twig/twig/lib/Twig/Node/Do.php',
+    'Twig_Node_Embed' => $vendorDir . '/twig/twig/lib/Twig/Node/Embed.php',
+    'Twig_Node_Expression' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression.php',
+    'Twig_Node_Expression_Array' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Array.php',
+    'Twig_Node_Expression_AssignName' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/AssignName.php',
+    'Twig_Node_Expression_Binary' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary.php',
+    'Twig_Node_Expression_Binary_Add' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/Add.php',
+    'Twig_Node_Expression_Binary_And' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/And.php',
+    'Twig_Node_Expression_Binary_BitwiseAnd' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/BitwiseAnd.php',
+    'Twig_Node_Expression_Binary_BitwiseOr' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/BitwiseOr.php',
+    'Twig_Node_Expression_Binary_BitwiseXor' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/BitwiseXor.php',
+    'Twig_Node_Expression_Binary_Concat' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/Concat.php',
+    'Twig_Node_Expression_Binary_Div' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/Div.php',
+    'Twig_Node_Expression_Binary_EndsWith' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/EndsWith.php',
+    'Twig_Node_Expression_Binary_Equal' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/Equal.php',
+    'Twig_Node_Expression_Binary_FloorDiv' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/FloorDiv.php',
+    'Twig_Node_Expression_Binary_Greater' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/Greater.php',
+    'Twig_Node_Expression_Binary_GreaterEqual' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/GreaterEqual.php',
+    'Twig_Node_Expression_Binary_In' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/In.php',
+    'Twig_Node_Expression_Binary_Less' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/Less.php',
+    'Twig_Node_Expression_Binary_LessEqual' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/LessEqual.php',
+    'Twig_Node_Expression_Binary_Matches' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/Matches.php',
+    'Twig_Node_Expression_Binary_Mod' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/Mod.php',
+    'Twig_Node_Expression_Binary_Mul' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/Mul.php',
+    'Twig_Node_Expression_Binary_NotEqual' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/NotEqual.php',
+    'Twig_Node_Expression_Binary_NotIn' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/NotIn.php',
+    'Twig_Node_Expression_Binary_Or' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/Or.php',
+    'Twig_Node_Expression_Binary_Power' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/Power.php',
+    'Twig_Node_Expression_Binary_Range' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/Range.php',
+    'Twig_Node_Expression_Binary_StartsWith' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/StartsWith.php',
+    'Twig_Node_Expression_Binary_Sub' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Binary/Sub.php',
+    'Twig_Node_Expression_BlockReference' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/BlockReference.php',
+    'Twig_Node_Expression_Call' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Call.php',
+    'Twig_Node_Expression_Conditional' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Conditional.php',
+    'Twig_Node_Expression_Constant' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Constant.php',
+    'Twig_Node_Expression_ExtensionReference' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/ExtensionReference.php',
+    'Twig_Node_Expression_Filter' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Filter.php',
+    'Twig_Node_Expression_Filter_Default' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Filter/Default.php',
+    'Twig_Node_Expression_Function' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Function.php',
+    'Twig_Node_Expression_GetAttr' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/GetAttr.php',
+    'Twig_Node_Expression_MethodCall' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/MethodCall.php',
+    'Twig_Node_Expression_Name' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Name.php',
+    'Twig_Node_Expression_NullCoalesce' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/NullCoalesce.php',
+    'Twig_Node_Expression_Parent' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Parent.php',
+    'Twig_Node_Expression_TempName' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/TempName.php',
+    'Twig_Node_Expression_Test' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Test.php',
+    'Twig_Node_Expression_Test_Constant' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Test/Constant.php',
+    'Twig_Node_Expression_Test_Defined' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Test/Defined.php',
+    'Twig_Node_Expression_Test_Divisibleby' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Test/Divisibleby.php',
+    'Twig_Node_Expression_Test_Even' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Test/Even.php',
+    'Twig_Node_Expression_Test_Null' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Test/Null.php',
+    'Twig_Node_Expression_Test_Odd' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Test/Odd.php',
+    'Twig_Node_Expression_Test_Sameas' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Test/Sameas.php',
+    'Twig_Node_Expression_Unary' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Unary.php',
+    'Twig_Node_Expression_Unary_Neg' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Unary/Neg.php',
+    'Twig_Node_Expression_Unary_Not' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Unary/Not.php',
+    'Twig_Node_Expression_Unary_Pos' => $vendorDir . '/twig/twig/lib/Twig/Node/Expression/Unary/Pos.php',
+    'Twig_Node_Flush' => $vendorDir . '/twig/twig/lib/Twig/Node/Flush.php',
+    'Twig_Node_For' => $vendorDir . '/twig/twig/lib/Twig/Node/For.php',
+    'Twig_Node_ForLoop' => $vendorDir . '/twig/twig/lib/Twig/Node/ForLoop.php',
+    'Twig_Node_If' => $vendorDir . '/twig/twig/lib/Twig/Node/If.php',
+    'Twig_Node_Import' => $vendorDir . '/twig/twig/lib/Twig/Node/Import.php',
+    'Twig_Node_Include' => $vendorDir . '/twig/twig/lib/Twig/Node/Include.php',
+    'Twig_Node_Macro' => $vendorDir . '/twig/twig/lib/Twig/Node/Macro.php',
+    'Twig_Node_Module' => $vendorDir . '/twig/twig/lib/Twig/Node/Module.php',
+    'Twig_Node_Print' => $vendorDir . '/twig/twig/lib/Twig/Node/Print.php',
+    'Twig_Node_Sandbox' => $vendorDir . '/twig/twig/lib/Twig/Node/Sandbox.php',
+    'Twig_Node_SandboxedPrint' => $vendorDir . '/twig/twig/lib/Twig/Node/SandboxedPrint.php',
+    'Twig_Node_Set' => $vendorDir . '/twig/twig/lib/Twig/Node/Set.php',
+    'Twig_Node_SetTemp' => $vendorDir . '/twig/twig/lib/Twig/Node/SetTemp.php',
+    'Twig_Node_Spaceless' => $vendorDir . '/twig/twig/lib/Twig/Node/Spaceless.php',
+    'Twig_Node_Text' => $vendorDir . '/twig/twig/lib/Twig/Node/Text.php',
+    'Twig_Parser' => $vendorDir . '/twig/twig/lib/Twig/Parser.php',
+    'Twig_ParserInterface' => $vendorDir . '/twig/twig/lib/Twig/ParserInterface.php',
+    'Twig_Profiler_Dumper_Blackfire' => $vendorDir . '/twig/twig/lib/Twig/Profiler/Dumper/Blackfire.php',
+    'Twig_Profiler_Dumper_Html' => $vendorDir . '/twig/twig/lib/Twig/Profiler/Dumper/Html.php',
+    'Twig_Profiler_Dumper_Text' => $vendorDir . '/twig/twig/lib/Twig/Profiler/Dumper/Text.php',
+    'Twig_Profiler_NodeVisitor_Profiler' => $vendorDir . '/twig/twig/lib/Twig/Profiler/NodeVisitor/Profiler.php',
+    'Twig_Profiler_Node_EnterProfile' => $vendorDir . '/twig/twig/lib/Twig/Profiler/Node/EnterProfile.php',
+    'Twig_Profiler_Node_LeaveProfile' => $vendorDir . '/twig/twig/lib/Twig/Profiler/Node/LeaveProfile.php',
+    'Twig_Profiler_Profile' => $vendorDir . '/twig/twig/lib/Twig/Profiler/Profile.php',
+    'Twig_Sandbox_SecurityError' => $vendorDir . '/twig/twig/lib/Twig/Sandbox/SecurityError.php',
+    'Twig_Sandbox_SecurityNotAllowedFilterError' => $vendorDir . '/twig/twig/lib/Twig/Sandbox/SecurityNotAllowedFilterError.php',
+    'Twig_Sandbox_SecurityNotAllowedFunctionError' => $vendorDir . '/twig/twig/lib/Twig/Sandbox/SecurityNotAllowedFunctionError.php',
+    'Twig_Sandbox_SecurityNotAllowedTagError' => $vendorDir . '/twig/twig/lib/Twig/Sandbox/SecurityNotAllowedTagError.php',
+    'Twig_Sandbox_SecurityPolicy' => $vendorDir . '/twig/twig/lib/Twig/Sandbox/SecurityPolicy.php',
+    'Twig_Sandbox_SecurityPolicyInterface' => $vendorDir . '/twig/twig/lib/Twig/Sandbox/SecurityPolicyInterface.php',
+    'Twig_SimpleFilter' => $vendorDir . '/twig/twig/lib/Twig/SimpleFilter.php',
+    'Twig_SimpleFunction' => $vendorDir . '/twig/twig/lib/Twig/SimpleFunction.php',
+    'Twig_Template' => $vendorDir . '/twig/twig/lib/Twig/Template.php',
+    'Twig_TemplateInterface' => $vendorDir . '/twig/twig/lib/Twig/TemplateInterface.php',
+    'Twig_Test' => $vendorDir . '/twig/twig/lib/Twig/Test.php',
+    'Twig_TestCallableInterface' => $vendorDir . '/twig/twig/lib/Twig/TestCallableInterface.php',
+    'Twig_TestInterface' => $vendorDir . '/twig/twig/lib/Twig/TestInterface.php',
+    'Twig_Test_Function' => $vendorDir . '/twig/twig/lib/Twig/Test/Function.php',
+    'Twig_Test_IntegrationTestCase' => $vendorDir . '/twig/twig/lib/Twig/Test/IntegrationTestCase.php',
+    'Twig_Test_Method' => $vendorDir . '/twig/twig/lib/Twig/Test/Method.php',
+    'Twig_Test_Node' => $vendorDir . '/twig/twig/lib/Twig/Test/Node.php',
+    'Twig_Test_NodeTestCase' => $vendorDir . '/twig/twig/lib/Twig/Test/NodeTestCase.php',
+    'Twig_Token' => $vendorDir . '/twig/twig/lib/Twig/Token.php',
+    'Twig_TokenParser' => $vendorDir . '/twig/twig/lib/Twig/TokenParser.php',
+    'Twig_TokenParserBroker' => $vendorDir . '/twig/twig/lib/Twig/TokenParserBroker.php',
+    'Twig_TokenParserBrokerInterface' => $vendorDir . '/twig/twig/lib/Twig/TokenParserBrokerInterface.php',
+    'Twig_TokenParserInterface' => $vendorDir . '/twig/twig/lib/Twig/TokenParserInterface.php',
+    'Twig_TokenParser_AutoEscape' => $vendorDir . '/twig/twig/lib/Twig/TokenParser/AutoEscape.php',
+    'Twig_TokenParser_Block' => $vendorDir . '/twig/twig/lib/Twig/TokenParser/Block.php',
+    'Twig_TokenParser_Do' => $vendorDir . '/twig/twig/lib/Twig/TokenParser/Do.php',
+    'Twig_TokenParser_Embed' => $vendorDir . '/twig/twig/lib/Twig/TokenParser/Embed.php',
+    'Twig_TokenParser_Extends' => $vendorDir . '/twig/twig/lib/Twig/TokenParser/Extends.php',
+    'Twig_TokenParser_Filter' => $vendorDir . '/twig/twig/lib/Twig/TokenParser/Filter.php',
+    'Twig_TokenParser_Flush' => $vendorDir . '/twig/twig/lib/Twig/TokenParser/Flush.php',
+    'Twig_TokenParser_For' => $vendorDir . '/twig/twig/lib/Twig/TokenParser/For.php',
+    'Twig_TokenParser_From' => $vendorDir . '/twig/twig/lib/Twig/TokenParser/From.php',
+    'Twig_TokenParser_If' => $vendorDir . '/twig/twig/lib/Twig/TokenParser/If.php',
+    'Twig_TokenParser_Import' => $vendorDir . '/twig/twig/lib/Twig/TokenParser/Import.php',
+    'Twig_TokenParser_Include' => $vendorDir . '/twig/twig/lib/Twig/TokenParser/Include.php',
+    'Twig_TokenParser_Macro' => $vendorDir . '/twig/twig/lib/Twig/TokenParser/Macro.php',
+    'Twig_TokenParser_Sandbox' => $vendorDir . '/twig/twig/lib/Twig/TokenParser/Sandbox.php',
+    'Twig_TokenParser_Set' => $vendorDir . '/twig/twig/lib/Twig/TokenParser/Set.php',
+    'Twig_TokenParser_Spaceless' => $vendorDir . '/twig/twig/lib/Twig/TokenParser/Spaceless.php',
+    'Twig_TokenParser_Use' => $vendorDir . '/twig/twig/lib/Twig/TokenParser/Use.php',
+    'Twig_TokenStream' => $vendorDir . '/twig/twig/lib/Twig/TokenStream.php',
+    'Twig_Util_DeprecationCollector' => $vendorDir . '/twig/twig/lib/Twig/Util/DeprecationCollector.php',
+    'Twig_Util_TemplateDirIterator' => $vendorDir . '/twig/twig/lib/Twig/Util/TemplateDirIterator.php',
 );
diff --git a/vendor/composer/autoload_namespaces.php b/vendor/composer/autoload_namespaces.php
index b7fc0125d..a7edd32d5 100644
--- a/vendor/composer/autoload_namespaces.php
+++ b/vendor/composer/autoload_namespaces.php
@@ -6,4 +6,5 @@
 $baseDir = dirname($vendorDir);
 
 return array(
+    'Twig_' => array($vendorDir . '/twig/twig/lib'),
 );
diff --git a/vendor/composer/installed.json b/vendor/composer/installed.json
new file mode 100644
index 000000000..b04c5d5a5
--- /dev/null
+++ b/vendor/composer/installed.json
@@ -0,0 +1,65 @@
+[
+    {
+        "name": "twig/twig",
+        "version": "v1.24.0",
+        "version_normalized": "1.24.0.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/twigphp/Twig.git",
+            "reference": "3e5aa30ebfbafd5951fb1b01e338e1800ce7e0e8"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/twigphp/Twig/zipball/3e5aa30ebfbafd5951fb1b01e338e1800ce7e0e8",
+            "reference": "3e5aa30ebfbafd5951fb1b01e338e1800ce7e0e8",
+            "shasum": ""
+        },
+        "require": {
+            "php": ">=5.2.7"
+        },
+        "require-dev": {
+            "symfony/debug": "~2.7",
+            "symfony/phpunit-bridge": "~2.7"
+        },
+        "time": "2016-01-25 21:22:18",
+        "type": "library",
+        "extra": {
+            "branch-alias": {
+                "dev-master": "1.24-dev"
+            }
+        },
+        "installation-source": "dist",
+        "autoload": {
+            "psr-0": {
+                "Twig_": "lib/"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "BSD-3-Clause"
+        ],
+        "authors": [
+            {
+                "name": "Fabien Potencier",
+                "email": "fabien@symfony.com",
+                "homepage": "http://fabien.potencier.org",
+                "role": "Lead Developer"
+            },
+            {
+                "name": "Armin Ronacher",
+                "email": "armin.ronacher@active-4.com",
+                "role": "Project Founder"
+            },
+            {
+                "name": "Twig Team",
+                "homepage": "http://twig.sensiolabs.org/contributors",
+                "role": "Contributors"
+            }
+        ],
+        "description": "Twig, the flexible, fast, and secure template language for PHP",
+        "homepage": "http://twig.sensiolabs.org",
+        "keywords": [
+            "templating"
+        ]
+    }
+]
diff --git a/vendor/twig/twig/.editorconfig b/vendor/twig/twig/.editorconfig
new file mode 100644
index 000000000..270f1d1b7
--- /dev/null
+++ b/vendor/twig/twig/.editorconfig
@@ -0,0 +1,18 @@
+; top-most EditorConfig file
+root = true
+
+; Unix-style newlines
+[*]
+end_of_line = LF
+
+[*.php]
+indent_style = space
+indent_size = 4
+
+[*.test]
+indent_style = space
+indent_size = 4
+
+[*.rst]
+indent_style = space
+indent_size = 4
diff --git a/vendor/twig/twig/.gitignore b/vendor/twig/twig/.gitignore
new file mode 100644
index 000000000..31103621c
--- /dev/null
+++ b/vendor/twig/twig/.gitignore
@@ -0,0 +1,5 @@
+/build
+/composer.lock
+/ext/twig/autom4te.cache/
+/phpunit.xml
+/vendor
diff --git a/vendor/twig/twig/.travis.yml b/vendor/twig/twig/.travis.yml
new file mode 100644
index 000000000..37262da2f
--- /dev/null
+++ b/vendor/twig/twig/.travis.yml
@@ -0,0 +1,39 @@
+language: php
+
+sudo: false
+
+cache:
+    directories:
+        - vendor
+        - $HOME/.composer/cache
+
+php:
+    - 5.2
+    - 5.3
+    - 5.4
+    - 5.5
+    - 5.6
+    - 7.0
+    - hhvm
+
+env:
+    - TWIG_EXT=no
+    - TWIG_EXT=yes
+
+install:
+    # Composer is not available on PHP 5.2
+    - if [ ${TRAVIS_PHP_VERSION:0:3} != "5.2" ]; then travis_retry composer install; fi
+
+before_script:
+    - if [ "$TWIG_EXT" == "yes" ]; then sh -c "cd ext/twig && phpize && ./configure --enable-twig && make && make install"; fi
+    - if [ "$TWIG_EXT" == "yes" ]; then echo "extension=twig.so" >> `php --ini | grep "Loaded Configuration" | sed -e "s|.*:\s*||"`; fi
+    - if [ ${TRAVIS_PHP_VERSION:0:3} == "5.2" ]; then sed -i.bak "s|vendor/autoload.php|test/bootstrap.php|" phpunit.xml.dist; fi
+
+matrix:
+    fast_finish: true
+    exclude:
+        - php: hhvm
+          env: TWIG_EXT=yes
+    allow_failures:
+        - php: 7.0
+          env: TWIG_EXT=yes
diff --git a/vendor/twig/twig/CHANGELOG b/vendor/twig/twig/CHANGELOG
new file mode 100644
index 000000000..85de10dd6
--- /dev/null
+++ b/vendor/twig/twig/CHANGELOG
@@ -0,0 +1,828 @@
+* 1.24.0 (2016-01-25)
+
+ * adding support for the ?? operator
+ * fixed the defined test when used on a constant, a map, or a sequence
+ * undeprecated _self (should only be used to get the template name, not the template instance)
+ * fixed parsing on PHP7
+
+* 1.23.3 (2016-01-11)
+
+ * fixed typo
+
+* 1.23.2 (2015-01-11)
+
+ * added versions in deprecated messages
+ * made file cache tolerant for trailing (back)slashes on directory configuration
+ * deprecated unused Twig_Node_Expression_ExtensionReference class
+
+* 1.23.1 (2015-11-05)
+
+ * fixed some exception messages which triggered PHP warnings
+ * fixed BC on Twig_Test_NodeTestCase
+
+* 1.23.0 (2015-10-29)
+
+ * deprecated the possibility to override an extension by registering another one with the same name
+ * deprecated Twig_ExtensionInterface::getGlobals() (added Twig_Extension_GlobalsInterface for BC)
+ * deprecated Twig_ExtensionInterface::initRuntime() (added Twig_Extension_InitRuntimeInterface for BC)
+ * deprecated Twig_Environment::computeAlternatives()
+
+* 1.22.3 (2015-10-13)
+
+ * fixed regression when using null as a cache strategy
+ * improved performance when checking template freshness
+ * fixed warnings when loaded templates do not exist
+ * fixed template class name generation to prevent possible collisions
+ * fixed logic for custom escapers to call them even on integers and null values
+ * changed template cache names to take into account the Twig C extension
+
+* 1.22.2 (2015-09-22)
+
+ * fixed a race condition in template loading
+
+* 1.22.1 (2015-09-15)
+
+ * fixed regression in template_from_string
+
+* 1.22.0 (2015-09-13)
+
+ * made Twig_Test_IntegrationTestCase more flexible
+ * added an option to force PHP bytecode invalidation when writing a compiled template into the cache
+ * fixed the profiler duration for the root node
+ * changed template cache names to take into account enabled extensions
+ * deprecated Twig_Environment::clearCacheFiles(), Twig_Environment::getCacheFilename(),
+   Twig_Environment::writeCacheFile(), and Twig_Environment::getTemplateClassPrefix()
+ * added a way to override the filesystem template cache system
+ * added a way to get the original template source from Twig_Template
+
+* 1.21.2 (2015-09-09)
+
+ * fixed variable names for the deprecation triggering code
+ * fixed escaping strategy detection based on filename
+ * added Traversable support for replace, merge, and sort
+ * deprecated support for character by character replacement for the "replace" filter
+
+* 1.21.1 (2015-08-26)
+
+ * fixed regression when using the deprecated Twig_Test_* classes
+
+* 1.21.0 (2015-08-24)
+
+ * added deprecation notices for deprecated features
+ * added a deprecation "framework" for filters/functions/tests and test fixtures
+
+* 1.20.0 (2015-08-12)
+
+ * forbid access to the Twig environment from templates and internal parts of Twig_Template
+ * fixed limited RCEs when in sandbox mode
+ * deprecated Twig_Template::getEnvironment()
+ * deprecated the _self variable for usage outside of the from and import tags
+ * added Twig_BaseNodeVisitor to ease the compatibility of node visitors 
+   between 1.x and 2.x
+
+* 1.19.0 (2015-07-31)
+
+ * fixed wrong error message when including an undefined template in a child template
+ * added support for variadic filters, functions, and tests
+ * added support for extra positional arguments in macros
+ * added ignore_missing flag to the source function
+ * fixed batch filter with zero items
+ * deprecated Twig_Environment::clearTemplateCache()
+ * fixed sandbox disabling when using the include function
+
+* 1.18.2 (2015-06-06)
+
+ * fixed template/line guessing in exceptions for nested templates
+ * optimized the number of inodes and the size of realpath cache when using the cache
+
+* 1.18.1 (2015-04-19)
+
+ * fixed memory leaks in the C extension
+ * deprecated Twig_Loader_String
+ * fixed the slice filter when used with a SimpleXMLElement object
+ * fixed filesystem loader when trying to load non-files (like directories)
+
+* 1.18.0 (2015-01-25)
+
+ * fixed some error messages where the line was wrong (unknown variables or argument names)
+ * added a new way to customize the main Module node (via empty nodes)
+ * added Twig_Environment::createTemplate() to create a template from a string
+ * added a profiler
+ * fixed filesystem loader cache when different file paths are used for the same template
+
+* 1.17.0 (2015-01-14)
+
+ * added a 'filename' autoescaping strategy, which dynamically chooses the
+   autoescaping strategy for a template based on template file extension.
+
+* 1.16.3 (2014-12-25)
+
+ * fixed regression for dynamic parent templates
+ * fixed cache management with statcache
+ * fixed a regression in the slice filter
+
+* 1.16.2 (2014-10-17)
+
+ * fixed timezone on dates as strings
+ * fixed 2-words test names when a custom node class is not used
+ * fixed macros when using an argument named like a PHP super global (like GET or POST)
+ * fixed date_modify when working with DateTimeImmutable
+ * optimized for loops
+ * fixed multi-byte characters handling in the split filter
+ * fixed a regression in the in operator
+ * fixed a regression in the slice filter
+
+* 1.16.1 (2014-10-10)
+
+ * improved error reporting in a sandboxed template
+ * fixed missing error file/line information under certain circumstances
+ * fixed wrong error line number in some error messages
+ * fixed the in operator to use strict comparisons
+ * sped up the slice filter
+ * fixed for mb function overload mb_substr acting different
+ * fixed the attribute() function when passing a variable for the arguments
+
+* 1.16.0 (2014-07-05)
+
+ * changed url_encode to always encode according to RFC 3986
+ * fixed inheritance in a 'use'-hierarchy
+ * removed the __toString policy check when the sandbox is disabled
+ * fixed recursively calling blocks in templates with inheritance
+
+* 1.15.1 (2014-02-13)
+
+ * fixed the conversion of the special '0000-00-00 00:00' date
+ * added an error message when trying to import an undefined block from a trait
+ * fixed a C extension crash when accessing defined but uninitialized property.
+
+* 1.15.0 (2013-12-06)
+
+ * made ignoreStrictCheck in Template::getAttribute() works with __call() methods throwing BadMethodCallException
+ * added min and max functions
+ * added the round filter
+ * fixed a bug that prevented the optimizers to be enabled/disabled selectively
+ * fixed first and last filters for UTF-8 strings
+ * added a source function to include the content of a template without rendering it
+ * fixed the C extension sandbox behavior when get or set is prepend to method name
+
+* 1.14.2 (2013-10-30)
+
+ * fixed error filename/line when an error occurs in an included file
+ * allowed operators that contain whitespaces to have more than one whitespace
+ * allowed tests to be made of 1 or 2 words (like "same as" or "divisible by")
+
+* 1.14.1 (2013-10-15)
+
+ * made it possible to use named operators as variables
+ * fixed the possibility to have a variable named 'matches'
+ * added support for PHP 5.5 DateTimeInterface
+
+* 1.14.0 (2013-10-03)
+
+ * fixed usage of the html_attr escaping strategy to avoid double-escaping with the html strategy
+ * added new operators: ends with, starts with, and matches
+ * fixed some compatibility issues with HHVM
+ * added a way to add custom escaping strategies
+ * fixed the C extension compilation on Windows
+ * fixed the batch filter when using a fill argument with an exact match of elements to batch
+ * fixed the filesystem loader cache when a template name exists in several namespaces
+ * fixed template_from_string when the template includes or extends other ones
+ * fixed a crash of the C extension on an edge case
+
+* 1.13.2 (2013-08-03)
+
+ * fixed the error line number for an error occurs in and embedded template
+ * fixed crashes of the C extension on some edge cases
+
+* 1.13.1 (2013-06-06)
+
+ * added the possibility to ignore the filesystem constructor argument in Twig_Loader_Filesystem
+ * fixed Twig_Loader_Chain::exists() for a loader which implements Twig_ExistsLoaderInterface
+ * adjusted backtrace call to reduce memory usage when an error occurs
+ * added support for object instances as the second argument of the constant test
+ * fixed the include function when used in an assignment
+
+* 1.13.0 (2013-05-10)
+
+ * fixed getting a numeric-like item on a variable ('09' for instance)
+ * fixed getting a boolean or float key on an array, so it is consistent with PHP's array access:
+   `{{ array[false] }}` behaves the same as `echo $array[false];` (equals `$array[0]`)
+ * made the escape filter 20% faster for happy path (escaping string for html with UTF-8)
+ * changed ☃ to § in tests
+ * enforced usage of named arguments after positional ones
+
+* 1.12.3 (2013-04-08)
+
+ * fixed a security issue in the filesystem loader where it was possible to include a template one
+   level above the configured path
+ * fixed fatal error that should be an exception when adding a filter/function/test too late
+ * added a batch filter
+ * added support for encoding an array as query string in the url_encode filter
+
+* 1.12.2 (2013-02-09)
+
+ * fixed the timezone used by the date filter and function when the given date contains a timezone (like 2010-01-28T15:00:00+02:00)
+ * fixed globals when getGlobals is called early on
+ * added the first and last filter
+
+* 1.12.1 (2013-01-15)
+
+ * added support for object instances as the second argument of the constant function
+ * relaxed globals management to avoid a BC break
+ * added support for {{ some_string[:2] }}
+
+* 1.12.0 (2013-01-08)
+
+ * added verbatim as an alias for the raw tag to avoid confusion with the raw filter
+ * fixed registration of tests and functions as anonymous functions
+ * fixed globals management
+
+* 1.12.0-RC1 (2012-12-29)
+
+ * added an include function (does the same as the include tag but in a more flexible way)
+ * added the ability to use any PHP callable to define filters, functions, and tests
+ * added a syntax error when using a loop variable that is not defined
+ * added the ability to set default values for macro arguments
+ * added support for named arguments for filters, tests, and functions
+ * moved filters/functions/tests syntax errors to the parser
+ * added support for extended ternary operator syntaxes
+
+* 1.11.1 (2012-11-11)
+
+ * fixed debug info line numbering (was off by 2)
+ * fixed escaping when calling a macro inside another one (regression introduced in 1.9.1)
+ * optimized variable access on PHP 5.4
+ * fixed a crash of the C extension when an exception was thrown from a macro called without being imported (using _self.XXX)
+
+* 1.11.0 (2012-11-07)
+
+ * fixed macro compilation when a variable name is a PHP reserved keyword
+ * changed the date filter behavior to always apply the default timezone, except if false is passed as the timezone
+ * fixed bitwise operator precedences
+ * added the template_from_string function
+ * fixed default timezone usage for the date function
+ * optimized the way Twig exceptions are managed (to make them faster)
+ * added Twig_ExistsLoaderInterface (implementing this interface in your loader make the chain loader much faster)
+
+* 1.10.3 (2012-10-19)
+
+ * fixed wrong template location in some error messages
+ * reverted a BC break introduced in 1.10.2
+ * added a split filter
+
+* 1.10.2 (2012-10-15)
+
+ * fixed macro calls on PHP 5.4
+
+* 1.10.1 (2012-10-15)
+
+ * made a speed optimization to macro calls when imported via the "import" tag
+ * fixed C extension compilation on Windows
+ * fixed a segfault in the C extension when using DateTime objects
+
+* 1.10.0 (2012-09-28)
+
+ * extracted functional tests framework to make it reusable for third-party extensions
+ * added namespaced templates support in Twig_Loader_Filesystem
+ * added Twig_Loader_Filesystem::prependPath()
+ * fixed an error when a token parser pass a closure as a test to the subparse() method
+
+* 1.9.2 (2012-08-25)
+
+ * fixed the in operator for objects that contain circular references
+ * fixed the C extension when accessing a public property of an object implementing the \ArrayAccess interface
+
+* 1.9.1 (2012-07-22)
+
+ * optimized macro calls when auto-escaping is on
+ * fixed wrong parent class for Twig_Function_Node
+ * made Twig_Loader_Chain more explicit about problems
+
+* 1.9.0 (2012-07-13)
+
+ * made the parsing independent of the template loaders
+ * fixed exception trace when an error occurs when rendering a child template
+ * added escaping strategies for CSS, URL, and HTML attributes
+ * fixed nested embed tag calls
+ * added the date_modify filter
+
+* 1.8.3 (2012-06-17)
+
+ * fixed paths in the filesystem loader when passing a path that ends with a slash or a backslash
+ * fixed escaping when a project defines a function named html or js
+ * fixed chmod mode to apply the umask correctly
+
+* 1.8.2 (2012-05-30)
+
+ * added the abs filter
+ * fixed a regression when using a number in template attributes
+ * fixed compiler when mbstring.func_overload is set to 2
+ * fixed DateTimeZone support in date filter
+
+* 1.8.1 (2012-05-17)
+
+ * fixed a regression when dealing with SimpleXMLElement instances in templates
+ * fixed "is_safe" value for the "dump" function when "html_errors" is not defined in php.ini
+ * switched to use mbstring whenever possible instead of iconv (you might need to update your encoding as mbstring and iconv encoding names sometimes differ)
+
+* 1.8.0 (2012-05-08)
+
+ * enforced interface when adding tests, filters, functions, and node visitors from extensions
+ * fixed a side-effect of the date filter where the timezone might be changed
+ * simplified usage of the autoescape tag; the only (optional) argument is now the escaping strategy or false (with a BC layer)
+ * added a way to dynamically change the auto-escaping strategy according to the template "filename"
+ * changed the autoescape option to also accept a supported escaping strategy (for BC, true is equivalent to html)
+ * added an embed tag
+
+* 1.7.0 (2012-04-24)
+
+ * fixed a PHP warning when using CIFS
+ * fixed template line number in some exceptions
+ * added an iterable test
+ * added an error when defining two blocks with the same name in a template
+ * added the preserves_safety option for filters
+ * fixed a PHP notice when trying to access a key on a non-object/array variable
+ * enhanced error reporting when the template file is an instance of SplFileInfo
+ * added Twig_Environment::mergeGlobals()
+ * added compilation checks to avoid misuses of the sandbox tag
+ * fixed filesystem loader freshness logic for high traffic websites
+ * fixed random function when charset is null
+
+* 1.6.5 (2012-04-11)
+
+ * fixed a regression when a template only extends another one without defining any blocks
+
+* 1.6.4 (2012-04-02)
+
+ * fixed PHP notice in Twig_Error::guessTemplateLine() introduced in 1.6.3
+ * fixed performance when compiling large files
+ * optimized parent template creation when the template does not use dynamic inheritance
+
+* 1.6.3 (2012-03-22)
+
+ * fixed usage of Z_ADDREF_P for PHP 5.2 in the C extension
+ * fixed compilation of numeric values used in templates when using a locale where the decimal separator is not a dot
+ * made the strategy used to guess the real template file name and line number in exception messages much faster and more accurate
+
+* 1.6.2 (2012-03-18)
+
+ * fixed sandbox mode when used with inheritance
+ * added preserveKeys support for the slice filter
+ * fixed the date filter when a DateTime instance is passed with a specific timezone
+ * added a trim filter
+
+* 1.6.1 (2012-02-29)
+
+ * fixed Twig C extension
+ * removed the creation of Twig_Markup instances when not needed
+ * added a way to set the default global timezone for dates
+ * fixed the slice filter on strings when the length is not specified
+ * fixed the creation of the cache directory in case of a race condition
+
+* 1.6.0 (2012-02-04)
+
+ * fixed raw blocks when used with the whitespace trim option
+ * made a speed optimization to macro calls when imported via the "from" tag
+ * fixed globals, parsers, visitors, filters, tests, and functions management in Twig_Environment when a new one or new extension is added
+ * fixed the attribute function when passing arguments
+ * added slice notation support for the [] operator (syntactic sugar for the slice operator)
+ * added a slice filter
+ * added string support for the reverse filter
+ * fixed the empty test and the length filter for Twig_Markup instances
+ * added a date function to ease date comparison
+ * fixed unary operators precedence
+ * added recursive parsing support in the parser
+ * added string and integer handling for the random function
+
+* 1.5.1 (2012-01-05)
+
+ * fixed a regression when parsing strings
+
+* 1.5.0 (2012-01-04)
+
+ * added Traversable objects support for the join filter
+
+* 1.5.0-RC2 (2011-12-30)
+
+ * added a way to set the default global date interval format
+ * fixed the date filter for DateInterval instances (setTimezone() does not exist for them)
+ * refactored Twig_Template::display() to ease its extension
+ * added a number_format filter
+
+* 1.5.0-RC1 (2011-12-26)
+
+ * removed the need to quote hash keys
+ * allowed hash keys to be any expression
+ * added a do tag
+ * added a flush tag
+ * added support for dynamically named filters and functions
+ * added a dump function to help debugging templates
+ * added a nl2br filter
+ * added a random function
+ * added a way to change the default format for the date filter
+ * fixed the lexer when an operator ending with a letter ends a line
+ * added string interpolation support
+ * enhanced exceptions for unknown filters, functions, tests, and tags
+
+* 1.4.0 (2011-12-07)
+
+ * fixed lexer when using big numbers (> PHP_INT_MAX)
+ * added missing preserveKeys argument to the reverse filter
+ * fixed macros containing filter tag calls
+
+* 1.4.0-RC2 (2011-11-27)
+
+ * removed usage of Reflection in Twig_Template::getAttribute()
+ * added a C extension that can optionally replace Twig_Template::getAttribute()
+ * added negative timestamp support to the date filter
+
+* 1.4.0-RC1 (2011-11-20)
+
+ * optimized variable access when using PHP 5.4
+ * changed the precedence of the .. operator to be more consistent with languages that implements such a feature like Ruby
+ * added an Exception to Twig_Loader_Array::isFresh() method when the template does not exist to be consistent with other loaders
+ * added Twig_Function_Node to allow more complex functions to have their own Node class
+ * added Twig_Filter_Node to allow more complex filters to have their own Node class
+ * added Twig_Test_Node to allow more complex tests to have their own Node class
+ * added a better error message when a template is empty but contain a BOM
+ * fixed "in" operator for empty strings
+ * fixed the "defined" test and the "default" filter (now works with more than one call (foo.bar.foo) and for both values of the strict_variables option)
+ * changed the way extensions are loaded (addFilter/addFunction/addGlobal/addTest/addNodeVisitor/addTokenParser/addExtension can now be called in any order)
+ * added Twig_Environment::display()
+ * made the escape filter smarter when the encoding is not supported by PHP
+ * added a convert_encoding filter
+ * moved all node manipulations outside the compile() Node method
+ * made several speed optimizations
+
+* 1.3.0 (2011-10-08)
+
+no changes
+
+* 1.3.0-RC1 (2011-10-04)
+
+ * added an optimization for the parent() function
+ * added cache reloading when auto_reload is true and an extension has been modified
+ * added the possibility to force the escaping of a string already marked as safe (instance of Twig_Markup)
+ * allowed empty templates to be used as traits
+ * added traits support for the "parent" function
+
+* 1.2.0 (2011-09-13)
+
+no changes
+
+* 1.2.0-RC1 (2011-09-10)
+
+ * enhanced the exception when a tag remains unclosed
+ * added support for empty Countable objects for the "empty" test
+ * fixed algorithm that determines if a template using inheritance is valid (no output between block definitions)
+ * added better support for encoding problems when escaping a string (available as of PHP 5.4)
+ * added a way to ignore a missing template when using the "include" tag ({% include "foo" ignore missing %})
+ * added support for an array of templates to the "include" and "extends" tags ({% include ['foo', 'bar'] %})
+ * added support for bitwise operators in expressions
+ * added the "attribute" function to allow getting dynamic attributes on variables
+ * added Twig_Loader_Chain
+ * added Twig_Loader_Array::setTemplate()
+ * added an optimization for the set tag when used to capture a large chunk of static text
+ * changed name regex to match PHP one "[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*" (works for blocks, tags, functions, filters, and macros)
+ * removed the possibility to use the "extends" tag from a block
+ * added "if" modifier support to "for" loops
+
+* 1.1.2 (2011-07-30)
+
+ * fixed json_encode filter on PHP 5.2
+ * fixed regression introduced in 1.1.1 ({{ block(foo|lower) }})
+ * fixed inheritance when using conditional parents
+ * fixed compilation of templates when the body of a child template is not empty
+ * fixed output when a macro throws an exception
+ * fixed a parsing problem when a large chunk of text is enclosed in a comment tag
+ * added PHPDoc for all Token parsers and Core extension functions
+
+* 1.1.1 (2011-07-17)
+
+ * added a performance optimization in the Optimizer (also helps to lower the number of nested level calls)
+ * made some performance improvement for some edge cases
+
+* 1.1.0 (2011-06-28)
+
+ * fixed json_encode filter
+
+* 1.1.0-RC3 (2011-06-24)
+
+ * fixed method case-sensitivity when using the sandbox mode
+ * added timezone support for the date filter
+ * fixed possible security problems with NUL bytes
+
+* 1.1.0-RC2 (2011-06-16)
+
+ * added an exception when the template passed to "use" is not a string
+ * made 'a.b is defined' not throw an exception if a is not defined (in strict mode)
+ * added {% line \d+ %} directive
+
+* 1.1.0-RC1 (2011-05-28)
+
+Flush your cache after upgrading.
+
+ * fixed date filter when using a timestamp
+ * fixed the defined test for some cases
+ * fixed a parsing problem when a large chunk of text is enclosed in a raw tag
+ * added support for horizontal reuse of template blocks (see docs for more information)
+ * added whitespace control modifier to all tags (see docs for more information)
+ * added null as an alias for none (the null test is also an alias for the none test now)
+ * made TRUE, FALSE, NONE equivalent to their lowercase counterparts
+ * wrapped all compilation and runtime exceptions with Twig_Error_Runtime and added logic to guess the template name and line
+ * moved display() method to Twig_Template (generated templates should now use doDisplay() instead)
+
+* 1.0.0 (2011-03-27)
+
+ * fixed output when using mbstring
+ * fixed duplicate call of methods when using the sandbox
+ * made the charset configurable for the escape filter
+
+* 1.0.0-RC2 (2011-02-21)
+
+ * changed the way {% set %} works when capturing (the content is now marked as safe)
+ * added support for macro name in the endmacro tag
+ * make Twig_Error compatible with PHP 5.3.0 >
+ * fixed an infinite loop on some Windows configurations
+ * fixed the "length" filter for numbers
+ * fixed Template::getAttribute() as properties in PHP are case sensitive
+ * removed coupling between Twig_Node and Twig_Template
+ * fixed the ternary operator precedence rule
+
+* 1.0.0-RC1 (2011-01-09)
+
+Backward incompatibilities:
+
+ * the "items" filter, which has been deprecated for quite a long time now, has been removed
+ * the "range" filter has been converted to a function: 0|range(10) -> range(0, 10)
+ * the "constant" filter has been converted to a function: {{ some_date|date('DATE_W3C'|constant) }} -> {{ some_date|date(constant('DATE_W3C')) }}
+ * the "cycle" filter has been converted to a function: {{ ['odd', 'even']|cycle(i) }} -> {{ cycle(['odd', 'even'], i) }}
+ * the "for" tag does not support "joined by" anymore
+ * the "autoescape" first argument is now "true"/"false" (instead of "on"/"off")
+ * the "parent" tag has been replaced by a "parent" function ({{ parent() }} instead of {% parent %})
+ * the "display" tag has been replaced by a "block" function ({{ block('title') }} instead of {% display title %})
+ * removed the grammar and simple token parser (moved to the Twig Extensions repository)
+
+Changes:
+
+ * added "needs_context" option for filters and functions (the context is then passed as a first argument)
+ * added global variables support
+ * made macros return their value instead of echoing directly (fixes calling a macro in sandbox mode)
+ * added the "from" tag to import macros as functions
+ * added support for functions (a function is just syntactic sugar for a getAttribute() call)
+ * made macros callable when sandbox mode is enabled
+ * added an exception when a macro uses a reserved name
+ * the "default" filter now uses the "empty" test instead of just checking for null
+ * added the "empty" test
+
+* 0.9.10 (2010-12-16)
+
+Backward incompatibilities:
+
+ * The Escaper extension is enabled by default, which means that all displayed
+   variables are now automatically escaped. You can revert to the previous
+   behavior by removing the extension via $env->removeExtension('escaper')
+   or just set the 'autoescape' option to 'false'.
+ * removed the "without loop" attribute for the "for" tag (not needed anymore
+   as the Optimizer take care of that for most cases)
+ * arrays and hashes have now a different syntax
+     * arrays keep the same syntax with square brackets: [1, 2]
+     * hashes now use curly braces (["a": "b"] should now be written as {"a": "b"})
+     * support for "arrays with keys" and "hashes without keys" is not supported anymore ([1, "foo": "bar"] or {"foo": "bar", 1})
+ * the i18n extension is now part of the Twig Extensions repository
+
+Changes:
+
+ * added the merge filter
+ * removed 'is_escaper' option for filters (a left over from the previous version) -- you must use 'is_safe' now instead
+ * fixed usage of operators as method names (like is, in, and not)
+ * changed the order of execution for node visitors
+ * fixed default() filter behavior when used with strict_variables set to on
+ * fixed filesystem loader compatibility with PHAR files
+ * enhanced error messages when an unexpected token is parsed in an expression
+ * fixed filename not being added to syntax error messages
+ * added the autoescape option to enable/disable autoescaping
+ * removed the newline after a comment (mimics PHP behavior)
+ * added a syntax error exception when parent block is used on a template that does not extend another one
+ * made the Escaper extension enabled by default
+ * fixed sandbox extension when used with auto output escaping
+ * fixed escaper when wrapping a Twig_Node_Print (the original class must be preserved)
+ * added an Optimizer extension (enabled by default; optimizes "for" loops and "raw" filters)
+ * added priority to node visitors
+
+* 0.9.9 (2010-11-28)
+
+Backward incompatibilities:
+ * the self special variable has been renamed to _self
+ * the odd and even filters are now tests:
+     {{ foo|odd }} must now be written {{ foo is odd }}
+ * the "safe" filter has been renamed to "raw"
+ * in Node classes,
+        sub-nodes are now accessed via getNode() (instead of property access)
+        attributes via getAttribute() (instead of array access)
+ * the urlencode filter had been renamed to url_encode
+ * the include tag now merges the passed variables with the current context by default
+   (the old behavior is still possible by adding the "only" keyword)
+ * moved Exceptions to Twig_Error_* (Twig_SyntaxError/Twig_RuntimeError are now Twig_Error_Syntax/Twig_Error_Runtime)
+ * removed support for {{ 1 < i < 3 }} (use {{ i > 1 and i < 3 }} instead)
+ * the "in" filter has been removed ({{ a|in(b) }} should now be written {{ a in b }})
+
+Changes:
+ * added file and line to Twig_Error_Runtime exceptions thrown from Twig_Template
+ * changed trans tag to accept any variable for the plural count
+ * fixed sandbox mode (__toString() method check was not enforced if called implicitly from complex statements)
+ * added the ** (power) operator
+ * changed the algorithm used for parsing expressions
+ * added the spaceless tag
+ * removed trim_blocks option
+ * added support for is*() methods for attributes (foo.bar now looks for foo->getBar() or foo->isBar())
+ * changed all exceptions to extend Twig_Error
+ * fixed unary expressions ({{ not(1 or 0) }})
+ * fixed child templates (with an extend tag) that uses one or more imports
+ * added support for {{ 1 not in [2, 3] }} (more readable than the current {{ not (1 in [2, 3]) }})
+ * escaping has been rewritten
+ * the implementation of template inheritance has been rewritten
+   (blocks can now be called individually and still work with inheritance)
+ * fixed error handling for if tag when a syntax error occurs within a subparse process
+ * added a way to implement custom logic for resolving token parsers given a tag name
+ * fixed js escaper to be stricter (now uses a whilelist-based js escaper)
+ * added the following filers: "constant", "trans", "replace", "json_encode"
+ * added a "constant" test
+ * fixed objects with __toString() not being autoescaped
+ * fixed subscript expressions when calling __call() (methods now keep the case)
+ * added "test" feature (accessible via the "is" operator)
+ * removed the debug tag (should be done in an extension)
+ * fixed trans tag when no vars are used in plural form
+ * fixed race condition when writing template cache
+ * added the special _charset variable to reference the current charset
+ * added the special _context variable to reference the current context
+ * renamed self to _self (to avoid conflict)
+ * fixed Twig_Template::getAttribute() for protected properties
+
+* 0.9.8 (2010-06-28)
+
+Backward incompatibilities:
+ * the trans tag plural count is now attached to the plural tag:
+    old: `{% trans count %}...{% plural %}...{% endtrans %}`
+    new: `{% trans %}...{% plural count %}...{% endtrans %}`
+
+ * added a way to translate strings coming from a variable ({% trans var %})
+ * fixed trans tag when used with the Escaper extension
+ * fixed default cache umask
+ * removed Twig_Template instances from the debug tag output
+ * fixed objects with __isset() defined
+ * fixed set tag when used with a capture
+ * fixed type hinting for Twig_Environment::addFilter() method
+
+* 0.9.7 (2010-06-12)
+
+Backward incompatibilities:
+ * changed 'as' to '=' for the set tag ({% set title as "Title" %} must now be {% set title = "Title" %})
+ * removed the sandboxed attribute of the include tag (use the new sandbox tag instead)
+ * refactored the Node system (if you have custom nodes, you will have to update them to use the new API)
+
+ * added self as a special variable that refers to the current template (useful for importing macros from the current template)
+ * added Twig_Template instance support to the include tag
+ * added support for dynamic and conditional inheritance ({% extends some_var %} and {% extends standalone ? "minimum" : "base" %})
+ * added a grammar sub-framework to ease the creation of custom tags
+ * fixed the for tag for large arrays (some loop variables are now only available for arrays and objects that implement the Countable interface)
+ * removed the Twig_Resource::resolveMissingFilter() method
+ * fixed the filter tag which did not apply filtering to included files
+ * added a bunch of unit tests
+ * added a bunch of phpdoc
+ * added a sandbox tag in the sandbox extension
+ * changed the date filter to support any date format supported by DateTime
+ * added strict_variable setting to throw an exception when an invalid variable is used in a template (disabled by default)
+ * added the lexer, parser, and compiler as arguments to the Twig_Environment constructor
+ * changed the cache option to only accepts an explicit path to a cache directory or false
+ * added a way to add token parsers, filters, and visitors without creating an extension
+ * added three interfaces: Twig_NodeInterface, Twig_TokenParserInterface, and Twig_FilterInterface
+ * changed the generated code to match the new coding standards
+ * fixed sandbox mode (__toString() method check was not enforced if called implicitly from a simple statement like {{ article }})
+ * added an exception when a child template has a non-empty body (as it is always ignored when rendering)
+
+* 0.9.6 (2010-05-12)
+
+ * fixed variables defined outside a loop and for which the value changes in a for loop
+ * fixed the test suite for PHP 5.2 and older versions of PHPUnit
+ * added support for __call() in expression resolution
+ * fixed node visiting for macros (macros are now visited by visitors as any other node)
+ * fixed nested block definitions with a parent call (rarely useful but nonetheless supported now)
+ * added the cycle filter
+ * fixed the Lexer when mbstring.func_overload is used with an mbstring.internal_encoding different from ASCII
+ * added a long-syntax for the set tag ({% set foo %}...{% endset %})
+ * unit tests are now powered by PHPUnit
+ * added support for gettext via the `i18n` extension
+ * fixed twig_capitalize_string_filter() and fixed twig_length_filter() when used with UTF-8 values
+ * added a more useful exception if an if tag is not closed properly
+ * added support for escaping strategy in the autoescape tag
+ * fixed lexer when a template has a big chunk of text between/in a block
+
+* 0.9.5 (2010-01-20)
+
+As for any new release, don't forget to remove all cached templates after
+upgrading.
+
+If you have defined custom filters, you MUST upgrade them for this release. To
+upgrade, replace "array" with "new Twig_Filter_Function", and replace the
+environment constant by the "needs_environment" option:
+
+  // before
+  'even'   => array('twig_is_even_filter', false),
+  'escape' => array('twig_escape_filter', true),
+
+  // after
+  'even'   => new Twig_Filter_Function('twig_is_even_filter'),
+  'escape' => new Twig_Filter_Function('twig_escape_filter', array('needs_environment' => true)),
+
+If you have created NodeTransformer classes, you will need to upgrade them to
+the new interface (please note that the interface is not yet considered
+stable).
+
+ * fixed list nodes that did not extend the Twig_NodeListInterface
+ * added the "without loop" option to the for tag (it disables the generation of the loop variable)
+ * refactored node transformers to node visitors
+ * fixed automatic-escaping for blocks
+ * added a way to specify variables to pass to an included template
+ * changed the automatic-escaping rules to be more sensible and more configurable in custom filters (the documentation lists all the rules)
+ * improved the filter system to allow object methods to be used as filters
+ * changed the Array and String loaders to actually make use of the cache mechanism
+ * included the default filter function definitions in the extension class files directly (Core, Escaper)
+ * added the // operator (like the floor() PHP function)
+ * added the .. operator (as a syntactic sugar for the range filter when the step is 1)
+ * added the in operator (as a syntactic sugar for the in filter)
+ * added the following filters in the Core extension: in, range
+ * added support for arrays (same behavior as in PHP, a mix between lists and dictionaries, arrays and hashes)
+ * enhanced some error messages to provide better feedback in case of parsing errors
+
+* 0.9.4 (2009-12-02)
+
+If you have custom loaders, you MUST upgrade them for this release: The
+Twig_Loader base class has been removed, and the Twig_LoaderInterface has also
+been changed (see the source code for more information or the documentation).
+
+ * added support for DateTime instances for the date filter
+ * fixed loop.last when the array only has one item
+ * made it possible to insert newlines in tag and variable blocks
+ * fixed a bug when a literal '\n' were present in a template text
+ * fixed bug when the filename of a template contains */
+ * refactored loaders
+
+* 0.9.3 (2009-11-11)
+
+This release is NOT backward compatible with the previous releases.
+
+  The loaders do not take the cache and autoReload arguments anymore. Instead,
+  the Twig_Environment class has two new options: cache and auto_reload.
+  Upgrading your code means changing this kind of code:
+
+      $loader = new Twig_Loader_Filesystem('/path/to/templates', '/path/to/compilation_cache', true);
+      $twig = new Twig_Environment($loader);
+
+  to something like this:
+
+      $loader = new Twig_Loader_Filesystem('/path/to/templates');
+      $twig = new Twig_Environment($loader, array(
+        'cache' => '/path/to/compilation_cache',
+        'auto_reload' => true,
+      ));
+
+ * deprecated the "items" filter as it is not needed anymore
+ * made cache and auto_reload options of Twig_Environment instead of arguments of Twig_Loader
+ * optimized template loading speed
+ * removed output when an error occurs in a template and render() is used
+ * made major speed improvements for loops (up to 300% on even the smallest loops)
+ * added properties as part of the sandbox mode
+ * added public properties support (obj.item can now be the item property on the obj object)
+ * extended set tag to support expression as value ({% set foo as 'foo' ~ 'bar' %} )
+ * fixed bug when \ was used in HTML
+
+* 0.9.2 (2009-10-29)
+
+ * made some speed optimizations
+ * changed the cache extension to .php
+ * added a js escaping strategy
+ * added support for short block tag
+ * changed the filter tag to allow chained filters
+ * made lexer more flexible as you can now change the default delimiters
+ * added set tag
+ * changed default directory permission when cache dir does not exist (more secure)
+ * added macro support
+ * changed filters first optional argument to be a Twig_Environment instance instead of a Twig_Template instance
+ * made Twig_Autoloader::autoload() a static method
+ * avoid writing template file if an error occurs
+ * added $ escaping when outputting raw strings
+ * enhanced some error messages to ease debugging
+ * fixed empty cache files when the template contains an error
+
+* 0.9.1 (2009-10-14)
+
+  * fixed a bug in PHP 5.2.6
+  * fixed numbers with one than one decimal
+  * added support for method calls with arguments ({{ foo.bar('a', 43) }})
+  * made small speed optimizations
+  * made minor tweaks to allow better extensibility and flexibility
+
+* 0.9.0 (2009-10-12)
+
+ * Initial release
diff --git a/vendor/twig/twig/LICENSE b/vendor/twig/twig/LICENSE
new file mode 100644
index 000000000..cc74f810e
--- /dev/null
+++ b/vendor/twig/twig/LICENSE
@@ -0,0 +1,31 @@
+Copyright (c) 2009-2016 by the Twig Team.
+
+Some rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+
+    * The names of the contributors may not be used to endorse or
+      promote products derived from this software without specific
+      prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/vendor/twig/twig/README.rst b/vendor/twig/twig/README.rst
new file mode 100644
index 000000000..81737b0b2
--- /dev/null
+++ b/vendor/twig/twig/README.rst
@@ -0,0 +1,15 @@
+Twig, the flexible, fast, and secure template language for PHP
+==============================================================
+
+Twig is a template language for PHP, released under the new BSD license (code
+and documentation).
+
+Twig uses a syntax similar to the Django and Jinja template languages which
+inspired the Twig runtime environment.
+
+More Information
+----------------
+
+Read the `documentation`_ for more information.
+
+.. _documentation: http://twig.sensiolabs.org/documentation
diff --git a/vendor/twig/twig/composer.json b/vendor/twig/twig/composer.json
new file mode 100644
index 000000000..507d8aecd
--- /dev/null
+++ b/vendor/twig/twig/composer.json
@@ -0,0 +1,46 @@
+{
+    "name": "twig/twig",
+    "type": "library",
+    "description": "Twig, the flexible, fast, and secure template language for PHP",
+    "keywords": ["templating"],
+    "homepage": "http://twig.sensiolabs.org",
+    "license": "BSD-3-Clause",
+    "authors": [
+        {
+            "name": "Fabien Potencier",
+            "email": "fabien@symfony.com",
+            "homepage": "http://fabien.potencier.org",
+            "role": "Lead Developer"
+        },
+        {
+            "name": "Twig Team",
+            "homepage": "http://twig.sensiolabs.org/contributors",
+            "role": "Contributors"
+        },
+        {
+            "name": "Armin Ronacher",
+            "email": "armin.ronacher@active-4.com",
+            "role": "Project Founder"
+        }
+    ],
+    "support": {
+        "forum": "https://groups.google.com/forum/#!forum/twig-users"
+    },
+    "require": {
+        "php": ">=5.2.7"
+    },
+    "require-dev": {
+        "symfony/phpunit-bridge": "~2.7",
+        "symfony/debug": "~2.7"
+    },
+    "autoload": {
+        "psr-0" : {
+            "Twig_" : "lib/"
+        }
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "1.24-dev"
+        }
+    }
+}
diff --git a/vendor/twig/twig/doc/advanced.rst b/vendor/twig/twig/doc/advanced.rst
new file mode 100644
index 000000000..5b436ff2c
--- /dev/null
+++ b/vendor/twig/twig/doc/advanced.rst
@@ -0,0 +1,872 @@
+Extending Twig
+==============
+
+.. caution::
+
+    This section describes how to extend Twig as of **Twig 1.12**. If you are
+    using an older version, read the :doc:`legacy<advanced_legacy>` chapter
+    instead.
+
+Twig can be extended in many ways; you can add extra tags, filters, tests,
+operators, global variables, and functions. You can even extend the parser
+itself with node visitors.
+
+.. note::
+
+    The first section of this chapter describes how to extend Twig easily. If
+    you want to reuse your changes in different projects or if you want to
+    share them with others, you should then create an extension as described
+    in the following section.
+
+.. caution::
+
+    When extending Twig without creating an extension, Twig won't be able to
+    recompile your templates when the PHP code is updated. To see your changes
+    in real-time, either disable template caching or package your code into an
+    extension (see the next section of this chapter).
+
+Before extending Twig, you must understand the differences between all the
+different possible extension points and when to use them.
+
+First, remember that Twig has two main language constructs:
+
+* ``{{ }}``: used to print the result of an expression evaluation;
+
+* ``{% %}``: used to execute statements.
+
+To understand why Twig exposes so many extension points, let's see how to
+implement a *Lorem ipsum* generator (it needs to know the number of words to
+generate).
+
+You can use a ``lipsum`` *tag*:
+
+.. code-block:: jinja
+
+    {% lipsum 40 %}
+
+That works, but using a tag for ``lipsum`` is not a good idea for at least
+three main reasons:
+
+* ``lipsum`` is not a language construct;
+* The tag outputs something;
+* The tag is not flexible as you cannot use it in an expression:
+
+  .. code-block:: jinja
+
+      {{ 'some text' ~ {% lipsum 40 %} ~ 'some more text' }}
+
+In fact, you rarely need to create tags; and that's good news because tags are
+the most complex extension point of Twig.
+
+Now, let's use a ``lipsum`` *filter*:
+
+.. code-block:: jinja
+
+    {{ 40|lipsum }}
+
+Again, it works, but it looks weird. A filter transforms the passed value to
+something else but here we use the value to indicate the number of words to
+generate (so, ``40`` is an argument of the filter, not the value we want to
+transform).
+
+Next, let's use a ``lipsum`` *function*:
+
+.. code-block:: jinja
+
+    {{ lipsum(40) }}
+
+Here we go. For this specific example, the creation of a function is the
+extension point to use. And you can use it anywhere an expression is accepted:
+
+.. code-block:: jinja
+
+    {{ 'some text' ~ lipsum(40) ~ 'some more text' }}
+
+    {% set lipsum = lipsum(40) %}
+
+Last but not the least, you can also use a *global* object with a method able
+to generate lorem ipsum text:
+
+.. code-block:: jinja
+
+    {{ text.lipsum(40) }}
+
+As a rule of thumb, use functions for frequently used features and global
+objects for everything else.
+
+Keep in mind the following when you want to extend Twig:
+
+========== ========================== ========== =========================
+What?      Implementation difficulty? How often? When?
+========== ========================== ========== =========================
+*macro*    trivial                    frequent   Content generation
+*global*   trivial                    frequent   Helper object
+*function* trivial                    frequent   Content generation
+*filter*   trivial                    frequent   Value transformation
+*tag*      complex                    rare       DSL language construct
+*test*     trivial                    rare       Boolean decision
+*operator* trivial                    rare       Values transformation
+========== ========================== ========== =========================
+
+Globals
+-------
+
+A global variable is like any other template variable, except that it's
+available in all templates and macros::
+
+    $twig = new Twig_Environment($loader);
+    $twig->addGlobal('text', new Text());
+
+You can then use the ``text`` variable anywhere in a template:
+
+.. code-block:: jinja
+
+    {{ text.lipsum(40) }}
+
+Filters
+-------
+
+Creating a filter is as simple as associating a name with a PHP callable::
+
+    // an anonymous function
+    $filter = new Twig_SimpleFilter('rot13', function ($string) {
+        return str_rot13($string);
+    });
+
+    // or a simple PHP function
+    $filter = new Twig_SimpleFilter('rot13', 'str_rot13');
+
+    // or a class method
+    $filter = new Twig_SimpleFilter('rot13', array('SomeClass', 'rot13Filter'));
+
+The first argument passed to the ``Twig_SimpleFilter`` constructor is the name
+of the filter you will use in templates and the second one is the PHP callable
+to associate with it.
+
+Then, add the filter to your Twig environment::
+
+    $twig = new Twig_Environment($loader);
+    $twig->addFilter($filter);
+
+And here is how to use it in a template:
+
+.. code-block:: jinja
+
+    {{ 'Twig'|rot13 }}
+
+    {# will output Gjvt #}
+
+When called by Twig, the PHP callable receives the left side of the filter
+(before the pipe ``|``) as the first argument and the extra arguments passed
+to the filter (within parentheses ``()``) as extra arguments.
+
+For instance, the following code:
+
+.. code-block:: jinja
+
+    {{ 'TWIG'|lower }}
+    {{ now|date('d/m/Y') }}
+
+is compiled to something like the following::
+
+    <?php echo strtolower('TWIG') ?>
+    <?php echo twig_date_format_filter($now, 'd/m/Y') ?>
+
+The ``Twig_SimpleFilter`` class takes an array of options as its last
+argument::
+
+    $filter = new Twig_SimpleFilter('rot13', 'str_rot13', $options);
+
+Environment-aware Filters
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+If you want to access the current environment instance in your filter, set the
+``needs_environment`` option to ``true``; Twig will pass the current
+environment as the first argument to the filter call::
+
+    $filter = new Twig_SimpleFilter('rot13', function (Twig_Environment $env, $string) {
+        // get the current charset for instance
+        $charset = $env->getCharset();
+
+        return str_rot13($string);
+    }, array('needs_environment' => true));
+
+Context-aware Filters
+~~~~~~~~~~~~~~~~~~~~~
+
+If you want to access the current context in your filter, set the
+``needs_context`` option to ``true``; Twig will pass the current context as
+the first argument to the filter call (or the second one if
+``needs_environment`` is also set to ``true``)::
+
+    $filter = new Twig_SimpleFilter('rot13', function ($context, $string) {
+        // ...
+    }, array('needs_context' => true));
+
+    $filter = new Twig_SimpleFilter('rot13', function (Twig_Environment $env, $context, $string) {
+        // ...
+    }, array('needs_context' => true, 'needs_environment' => true));
+
+Automatic Escaping
+~~~~~~~~~~~~~~~~~~
+
+If automatic escaping is enabled, the output of the filter may be escaped
+before printing. If your filter acts as an escaper (or explicitly outputs HTML
+or JavaScript code), you will want the raw output to be printed. In such a
+case, set the ``is_safe`` option::
+
+    $filter = new Twig_SimpleFilter('nl2br', 'nl2br', array('is_safe' => array('html')));
+
+Some filters may need to work on input that is already escaped or safe, for
+example when adding (safe) HTML tags to originally unsafe output. In such a
+case, set the ``pre_escape`` option to escape the input data before it is run
+through your filter::
+
+    $filter = new Twig_SimpleFilter('somefilter', 'somefilter', array('pre_escape' => 'html', 'is_safe' => array('html')));
+
+Variadic Filters
+~~~~~~~~~~~~~~~~
+
+.. versionadded:: 1.19
+    Support for variadic filters was added in Twig 1.19.
+
+When a filter should accept an arbitrary number of arguments, set the
+``is_variadic`` option to ``true``; Twig will pass the extra arguments as the
+last argument to the filter call as an array::
+
+    $filter = new Twig_SimpleFilter('thumbnail', function ($file, array $options = array()) {
+        // ...
+    }, array('is_variadic' => true));
+
+Be warned that named arguments passed to a variadic filter cannot be checked
+for validity as they will automatically end up in the option array.
+
+Dynamic Filters
+~~~~~~~~~~~~~~~
+
+A filter name containing the special ``*`` character is a dynamic filter as
+the ``*`` can be any string::
+
+    $filter = new Twig_SimpleFilter('*_path', function ($name, $arguments) {
+        // ...
+    });
+
+The following filters will be matched by the above defined dynamic filter:
+
+* ``product_path``
+* ``category_path``
+
+A dynamic filter can define more than one dynamic parts::
+
+    $filter = new Twig_SimpleFilter('*_path_*', function ($name, $suffix, $arguments) {
+        // ...
+    });
+
+The filter will receive all dynamic part values before the normal filter
+arguments, but after the environment and the context. For instance, a call to
+``'foo'|a_path_b()`` will result in the following arguments to be passed to
+the filter: ``('a', 'b', 'foo')``.
+
+Deprecated Filters
+~~~~~~~~~~~~~~~~~~
+
+.. versionadded:: 1.21
+    Support for deprecated filters was added in Twig 1.21.
+
+You can mark a filter as being deprecated by setting the ``deprecated`` option
+to ``true``. You can also give an alternative filter that replaces the
+deprecated one when that makes sense::
+
+    $filter = new Twig_SimpleFilter('obsolete', function () {
+        // ...
+    }, array('deprecated' => true, 'alternative' => 'new_one'));
+
+When a filter is deprecated, Twig emits a deprecation notice when compiling a
+template using it. See :ref:`deprecation-notices` for more information.
+
+Functions
+---------
+
+Functions are defined in the exact same way as filters, but you need to create
+an instance of ``Twig_SimpleFunction``::
+
+    $twig = new Twig_Environment($loader);
+    $function = new Twig_SimpleFunction('function_name', function () {
+        // ...
+    });
+    $twig->addFunction($function);
+
+Functions support the same features as filters, except for the ``pre_escape``
+and ``preserves_safety`` options.
+
+Tests
+-----
+
+Tests are defined in the exact same way as filters and functions, but you need
+to create an instance of ``Twig_SimpleTest``::
+
+    $twig = new Twig_Environment($loader);
+    $test = new Twig_SimpleTest('test_name', function () {
+        // ...
+    });
+    $twig->addTest($test);
+
+Tests allow you to create custom application specific logic for evaluating
+boolean conditions. As a simple example, let's create a Twig test that checks if
+objects are 'red'::
+
+    $twig = new Twig_Environment($loader);
+    $test = new Twig_SimpleTest('red', function ($value) {
+        if (isset($value->color) && $value->color == 'red') {
+            return true;
+        }
+        if (isset($value->paint) && $value->paint == 'red') {
+            return true;
+        }
+        return false;
+    });
+    $twig->addTest($test);
+
+Test functions should always return true/false.
+
+When creating tests you can use the ``node_class`` option to provide custom test
+compilation. This is useful if your test can be compiled into PHP primitives.
+This is used by many of the tests built into Twig::
+
+    $twig = new Twig_Environment($loader);
+    $test = new Twig_SimpleTest(
+        'odd',
+        null,
+        array('node_class' => 'Twig_Node_Expression_Test_Odd'));
+    $twig->addTest($test);
+
+    class Twig_Node_Expression_Test_Odd extends Twig_Node_Expression_Test
+    {
+        public function compile(Twig_Compiler $compiler)
+        {
+            $compiler
+                ->raw('(')
+                ->subcompile($this->getNode('node'))
+                ->raw(' % 2 == 1')
+                ->raw(')')
+            ;
+        }
+    }
+
+The above example shows how you can create tests that use a node class. The
+node class has access to one sub-node called 'node'. This sub-node contains the
+value that is being tested. When the ``odd`` filter is used in code such as:
+
+.. code-block:: jinja
+
+    {% if my_value is odd %}
+
+The ``node`` sub-node will contain an expression of ``my_value``. Node-based
+tests also have access to the ``arguments`` node. This node will contain the
+various other arguments that have been provided to your test.
+
+If you want to pass a variable number of positional or named arguments to the
+test, set the ``is_variadic`` option to ``true``. Tests also support dynamic
+name feature as filters and functions.
+
+Tags
+----
+
+One of the most exciting features of a template engine like Twig is the
+possibility to define new language constructs. This is also the most complex
+feature as you need to understand how Twig's internals work.
+
+Let's create a simple ``set`` tag that allows the definition of simple
+variables from within a template. The tag can be used like follows:
+
+.. code-block:: jinja
+
+    {% set name = "value" %}
+
+    {{ name }}
+
+    {# should output value #}
+
+.. note::
+
+    The ``set`` tag is part of the Core extension and as such is always
+    available. The built-in version is slightly more powerful and supports
+    multiple assignments by default (cf. the template designers chapter for
+    more information).
+
+Three steps are needed to define a new tag:
+
+* Defining a Token Parser class (responsible for parsing the template code);
+
+* Defining a Node class (responsible for converting the parsed code to PHP);
+
+* Registering the tag.
+
+Registering a new tag
+~~~~~~~~~~~~~~~~~~~~~
+
+Adding a tag is as simple as calling the ``addTokenParser`` method on the
+``Twig_Environment`` instance::
+
+    $twig = new Twig_Environment($loader);
+    $twig->addTokenParser(new Project_Set_TokenParser());
+
+Defining a Token Parser
+~~~~~~~~~~~~~~~~~~~~~~~
+
+Now, let's see the actual code of this class::
+
+    class Project_Set_TokenParser extends Twig_TokenParser
+    {
+        public function parse(Twig_Token $token)
+        {
+            $parser = $this->parser;
+            $stream = $parser->getStream();
+
+            $name = $stream->expect(Twig_Token::NAME_TYPE)->getValue();
+            $stream->expect(Twig_Token::OPERATOR_TYPE, '=');
+            $value = $parser->getExpressionParser()->parseExpression();
+            $stream->expect(Twig_Token::BLOCK_END_TYPE);
+
+            return new Project_Set_Node($name, $value, $token->getLine(), $this->getTag());
+        }
+
+        public function getTag()
+        {
+            return 'set';
+        }
+    }
+
+The ``getTag()`` method must return the tag we want to parse, here ``set``.
+
+The ``parse()`` method is invoked whenever the parser encounters a ``set``
+tag. It should return a ``Twig_Node`` instance that represents the node (the
+``Project_Set_Node`` calls creating is explained in the next section).
+
+The parsing process is simplified thanks to a bunch of methods you can call
+from the token stream (``$this->parser->getStream()``):
+
+* ``getCurrent()``: Gets the current token in the stream.
+
+* ``next()``: Moves to the next token in the stream, *but returns the old one*.
+
+* ``test($type)``, ``test($value)`` or ``test($type, $value)``: Determines whether
+  the current token is of a particular type or value (or both). The value may be an
+  array of several possible values.
+
+* ``expect($type[, $value[, $message]])``: If the current token isn't of the given
+  type/value a syntax error is thrown. Otherwise, if the type and value are correct,
+  the token is returned and the stream moves to the next token.
+
+* ``look()``: Looks a the next token without consuming it.
+
+Parsing expressions is done by calling the ``parseExpression()`` like we did for
+the ``set`` tag.
+
+.. tip::
+
+    Reading the existing ``TokenParser`` classes is the best way to learn all
+    the nitty-gritty details of the parsing process.
+
+Defining a Node
+~~~~~~~~~~~~~~~
+
+The ``Project_Set_Node`` class itself is rather simple::
+
+    class Project_Set_Node extends Twig_Node
+    {
+        public function __construct($name, Twig_Node_Expression $value, $line, $tag = null)
+        {
+            parent::__construct(array('value' => $value), array('name' => $name), $line, $tag);
+        }
+
+        public function compile(Twig_Compiler $compiler)
+        {
+            $compiler
+                ->addDebugInfo($this)
+                ->write('$context[\''.$this->getAttribute('name').'\'] = ')
+                ->subcompile($this->getNode('value'))
+                ->raw(";\n")
+            ;
+        }
+    }
+
+The compiler implements a fluid interface and provides methods that helps the
+developer generate beautiful and readable PHP code:
+
+* ``subcompile()``: Compiles a node.
+
+* ``raw()``: Writes the given string as is.
+
+* ``write()``: Writes the given string by adding indentation at the beginning
+  of each line.
+
+* ``string()``: Writes a quoted string.
+
+* ``repr()``: Writes a PHP representation of a given value (see
+  ``Twig_Node_For`` for a usage example).
+
+* ``addDebugInfo()``: Adds the line of the original template file related to
+  the current node as a comment.
+
+* ``indent()``: Indents the generated code (see ``Twig_Node_Block`` for a
+  usage example).
+
+* ``outdent()``: Outdents the generated code (see ``Twig_Node_Block`` for a
+  usage example).
+
+.. _creating_extensions:
+
+Creating an Extension
+---------------------
+
+The main motivation for writing an extension is to move often used code into a
+reusable class like adding support for internationalization. An extension can
+define tags, filters, tests, operators, global variables, functions, and node
+visitors.
+
+Creating an extension also makes for a better separation of code that is
+executed at compilation time and code needed at runtime. As such, it makes
+your code faster.
+
+Most of the time, it is useful to create a single extension for your project,
+to host all the specific tags and filters you want to add to Twig.
+
+.. tip::
+
+    When packaging your code into an extension, Twig is smart enough to
+    recompile your templates whenever you make a change to it (when
+    ``auto_reload`` is enabled).
+
+.. note::
+
+    Before writing your own extensions, have a look at the Twig official
+    extension repository: http://github.com/twigphp/Twig-extensions.
+
+An extension is a class that implements the following interface::
+
+    interface Twig_ExtensionInterface
+    {
+        /**
+         * Initializes the runtime environment.
+         *
+         * This is where you can load some file that contains filter functions for instance.
+         *
+         * @param Twig_Environment $environment The current Twig_Environment instance
+         *
+         * @deprecated since 1.23 (to be removed in 2.0), implement Twig_Extension_InitRuntimeInterface instead
+         */
+        function initRuntime(Twig_Environment $environment);
+
+        /**
+         * Returns the token parser instances to add to the existing list.
+         *
+         * @return array An array of Twig_TokenParserInterface or Twig_TokenParserBrokerInterface instances
+         */
+        function getTokenParsers();
+
+        /**
+         * Returns the node visitor instances to add to the existing list.
+         *
+         * @return array An array of Twig_NodeVisitorInterface instances
+         */
+        function getNodeVisitors();
+
+        /**
+         * Returns a list of filters to add to the existing list.
+         *
+         * @return array An array of filters
+         */
+        function getFilters();
+
+        /**
+         * Returns a list of tests to add to the existing list.
+         *
+         * @return array An array of tests
+         */
+        function getTests();
+
+        /**
+         * Returns a list of functions to add to the existing list.
+         *
+         * @return array An array of functions
+         */
+        function getFunctions();
+
+        /**
+         * Returns a list of operators to add to the existing list.
+         *
+         * @return array An array of operators
+         */
+        function getOperators();
+
+        /**
+         * Returns a list of global variables to add to the existing list.
+         *
+         * @return array An array of global variables
+         *
+         * @deprecated since 1.23 (to be removed in 2.0), implement Twig_Extension_GlobalsInterface instead
+         */
+        function getGlobals();
+
+        /**
+         * Returns the name of the extension.
+         *
+         * @return string The extension name
+         */
+        function getName();
+    }
+
+To keep your extension class clean and lean, it can inherit from the built-in
+``Twig_Extension`` class instead of implementing the whole interface. That
+way, you just need to implement the ``getName()`` method as the
+``Twig_Extension`` provides empty implementations for all other methods.
+
+The ``getName()`` method must return a unique identifier for your extension.
+
+Now, with this information in mind, let's create the most basic extension
+possible::
+
+    class Project_Twig_Extension extends Twig_Extension
+    {
+        public function getName()
+        {
+            return 'project';
+        }
+    }
+
+.. note::
+
+    Of course, this extension does nothing for now. We will customize it in
+    the next sections.
+
+Twig does not care where you save your extension on the filesystem, as all
+extensions must be registered explicitly to be available in your templates.
+
+You can register an extension by using the ``addExtension()`` method on your
+main ``Environment`` object::
+
+    $twig = new Twig_Environment($loader);
+    $twig->addExtension(new Project_Twig_Extension());
+
+.. tip::
+
+    The bundled extensions are great examples of how extensions work.
+
+Globals
+~~~~~~~
+
+Global variables can be registered in an extension via the ``getGlobals()``
+method::
+
+    class Project_Twig_Extension extends Twig_Extension
+    {
+        public function getGlobals()
+        {
+            return array(
+                'text' => new Text(),
+            );
+        }
+
+        // ...
+    }
+
+Functions
+~~~~~~~~~
+
+Functions can be registered in an extension via the ``getFunctions()``
+method::
+
+    class Project_Twig_Extension extends Twig_Extension
+    {
+        public function getFunctions()
+        {
+            return array(
+                new Twig_SimpleFunction('lipsum', 'generate_lipsum'),
+            );
+        }
+
+        // ...
+    }
+
+Filters
+~~~~~~~
+
+To add a filter to an extension, you need to override the ``getFilters()``
+method. This method must return an array of filters to add to the Twig
+environment::
+
+    class Project_Twig_Extension extends Twig_Extension
+    {
+        public function getFilters()
+        {
+            return array(
+                new Twig_SimpleFilter('rot13', 'str_rot13'),
+            );
+        }
+
+        // ...
+    }
+
+Tags
+~~~~
+
+Adding a tag in an extension can be done by overriding the
+``getTokenParsers()`` method. This method must return an array of tags to add
+to the Twig environment::
+
+    class Project_Twig_Extension extends Twig_Extension
+    {
+        public function getTokenParsers()
+        {
+            return array(new Project_Set_TokenParser());
+        }
+
+        // ...
+    }
+
+In the above code, we have added a single new tag, defined by the
+``Project_Set_TokenParser`` class. The ``Project_Set_TokenParser`` class is
+responsible for parsing the tag and compiling it to PHP.
+
+Operators
+~~~~~~~~~
+
+The ``getOperators()`` methods lets you add new operators. Here is how to add
+``!``, ``||``, and ``&&`` operators::
+
+    class Project_Twig_Extension extends Twig_Extension
+    {
+        public function getOperators()
+        {
+            return array(
+                array(
+                    '!' => array('precedence' => 50, 'class' => 'Twig_Node_Expression_Unary_Not'),
+                ),
+                array(
+                    '||' => array('precedence' => 10, 'class' => 'Twig_Node_Expression_Binary_Or', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                    '&&' => array('precedence' => 15, 'class' => 'Twig_Node_Expression_Binary_And', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                ),
+            );
+        }
+
+        // ...
+    }
+
+Tests
+~~~~~
+
+The ``getTests()`` method lets you add new test functions::
+
+    class Project_Twig_Extension extends Twig_Extension
+    {
+        public function getTests()
+        {
+            return array(
+                new Twig_SimpleTest('even', 'twig_test_even'),
+            );
+        }
+
+        // ...
+    }
+
+Overloading
+-----------
+
+To overload an already defined filter, test, operator, global variable, or
+function, re-define it in an extension and register it **as late as
+possible** (order matters)::
+
+    class MyCoreExtension extends Twig_Extension
+    {
+        public function getFilters()
+        {
+            return array(
+                new Twig_SimpleFilter('date', array($this, 'dateFilter')),
+            );
+        }
+
+        public function dateFilter($timestamp, $format = 'F j, Y H:i')
+        {
+            // do something different from the built-in date filter
+        }
+
+        public function getName()
+        {
+            return 'project';
+        }
+    }
+
+    $twig = new Twig_Environment($loader);
+    $twig->addExtension(new MyCoreExtension());
+
+Here, we have overloaded the built-in ``date`` filter with a custom one.
+
+If you do the same on the Twig_Environment itself, beware that it takes
+precedence over any other registered extensions::
+
+    $twig = new Twig_Environment($loader);
+    $twig->addFilter(new Twig_SimpleFilter('date', function ($timestamp, $format = 'F j, Y H:i') {
+        // do something different from the built-in date filter
+    }));
+    // the date filter will come from the above registration, not
+    // from the registered extension below
+    $twig->addExtension(new MyCoreExtension());
+
+.. caution::
+
+    Note that overloading the built-in Twig elements is not recommended as it
+    might be confusing.
+
+Testing an Extension
+--------------------
+
+Functional Tests
+~~~~~~~~~~~~~~~~
+
+You can create functional tests for extensions simply by creating the
+following file structure in your test directory::
+
+    Fixtures/
+        filters/
+            foo.test
+            bar.test
+        functions/
+            foo.test
+            bar.test
+        tags/
+            foo.test
+            bar.test
+    IntegrationTest.php
+
+The ``IntegrationTest.php`` file should look like this::
+
+    class Project_Tests_IntegrationTest extends Twig_Test_IntegrationTestCase
+    {
+        public function getExtensions()
+        {
+            return array(
+                new Project_Twig_Extension1(),
+                new Project_Twig_Extension2(),
+            );
+        }
+
+        public function getFixturesDir()
+        {
+            return dirname(__FILE__).'/Fixtures/';
+        }
+    }
+
+Fixtures examples can be found within the Twig repository
+`tests/Twig/Fixtures`_ directory.
+
+Node Tests
+~~~~~~~~~~
+
+Testing the node visitors can be complex, so extend your test cases from
+``Twig_Test_NodeTestCase``. Examples can be found in the Twig repository
+`tests/Twig/Node`_ directory.
+
+.. _`rot13`:                   http://www.php.net/manual/en/function.str-rot13.php
+.. _`tests/Twig/Fixtures`:     https://github.com/twigphp/Twig/tree/master/test/Twig/Tests/Fixtures
+.. _`tests/Twig/Node`:         https://github.com/twigphp/Twig/tree/master/test/Twig/Tests/Node
diff --git a/vendor/twig/twig/doc/advanced_legacy.rst b/vendor/twig/twig/doc/advanced_legacy.rst
new file mode 100644
index 000000000..2ef6bfde8
--- /dev/null
+++ b/vendor/twig/twig/doc/advanced_legacy.rst
@@ -0,0 +1,887 @@
+Extending Twig
+==============
+
+.. caution::
+
+    This section describes how to extends Twig for versions **older than
+    1.12**. If you are using a newer version, read the :doc:`newer<advanced>`
+    chapter instead.
+
+Twig can be extended in many ways; you can add extra tags, filters, tests,
+operators, global variables, and functions. You can even extend the parser
+itself with node visitors.
+
+.. note::
+
+    The first section of this chapter describes how to extend Twig easily. If
+    you want to reuse your changes in different projects or if you want to
+    share them with others, you should then create an extension as described
+    in the following section.
+
+.. caution::
+
+    When extending Twig by calling methods on the Twig environment instance,
+    Twig won't be able to recompile your templates when the PHP code is
+    updated. To see your changes in real-time, either disable template caching
+    or package your code into an extension (see the next section of this
+    chapter).
+
+Before extending Twig, you must understand the differences between all the
+different possible extension points and when to use them.
+
+First, remember that Twig has two main language constructs:
+
+* ``{{ }}``: used to print the result of an expression evaluation;
+
+* ``{% %}``: used to execute statements.
+
+To understand why Twig exposes so many extension points, let's see how to
+implement a *Lorem ipsum* generator (it needs to know the number of words to
+generate).
+
+You can use a ``lipsum`` *tag*:
+
+.. code-block:: jinja
+
+    {% lipsum 40 %}
+
+That works, but using a tag for ``lipsum`` is not a good idea for at least
+three main reasons:
+
+* ``lipsum`` is not a language construct;
+* The tag outputs something;
+* The tag is not flexible as you cannot use it in an expression:
+
+  .. code-block:: jinja
+
+      {{ 'some text' ~ {% lipsum 40 %} ~ 'some more text' }}
+
+In fact, you rarely need to create tags; and that's good news because tags are
+the most complex extension point of Twig.
+
+Now, let's use a ``lipsum`` *filter*:
+
+.. code-block:: jinja
+
+    {{ 40|lipsum }}
+
+Again, it works, but it looks weird. A filter transforms the passed value to
+something else but here we use the value to indicate the number of words to
+generate (so, ``40`` is an argument of the filter, not the value we want to
+transform).
+
+Next, let's use a ``lipsum`` *function*:
+
+.. code-block:: jinja
+
+    {{ lipsum(40) }}
+
+Here we go. For this specific example, the creation of a function is the
+extension point to use. And you can use it anywhere an expression is accepted:
+
+.. code-block:: jinja
+
+    {{ 'some text' ~ ipsum(40) ~ 'some more text' }}
+
+    {% set ipsum = ipsum(40) %}
+
+Last but not the least, you can also use a *global* object with a method able
+to generate lorem ipsum text:
+
+.. code-block:: jinja
+
+    {{ text.lipsum(40) }}
+
+As a rule of thumb, use functions for frequently used features and global
+objects for everything else.
+
+Keep in mind the following when you want to extend Twig:
+
+========== ========================== ========== =========================
+What?      Implementation difficulty? How often? When?
+========== ========================== ========== =========================
+*macro*    trivial                    frequent   Content generation
+*global*   trivial                    frequent   Helper object
+*function* trivial                    frequent   Content generation
+*filter*   trivial                    frequent   Value transformation
+*tag*      complex                    rare       DSL language construct
+*test*     trivial                    rare       Boolean decision
+*operator* trivial                    rare       Values transformation
+========== ========================== ========== =========================
+
+Globals
+-------
+
+A global variable is like any other template variable, except that it's
+available in all templates and macros::
+
+    $twig = new Twig_Environment($loader);
+    $twig->addGlobal('text', new Text());
+
+You can then use the ``text`` variable anywhere in a template:
+
+.. code-block:: jinja
+
+    {{ text.lipsum(40) }}
+
+Filters
+-------
+
+A filter is a regular PHP function or an object method that takes the left
+side of the filter (before the pipe ``|``) as first argument and the extra
+arguments passed to the filter (within parentheses ``()``) as extra arguments.
+
+Defining a filter is as easy as associating the filter name with a PHP
+callable. For instance, let's say you have the following code in a template:
+
+.. code-block:: jinja
+
+    {{ 'TWIG'|lower }}
+
+When compiling this template to PHP, Twig looks for the PHP callable
+associated with the ``lower`` filter. The ``lower`` filter is a built-in Twig
+filter, and it is simply mapped to the PHP ``strtolower()`` function. After
+compilation, the generated PHP code is roughly equivalent to:
+
+.. code-block:: html+php
+
+    <?php echo strtolower('TWIG') ?>
+
+As you can see, the ``'TWIG'`` string is passed as a first argument to the PHP
+function.
+
+A filter can also take extra arguments like in the following example:
+
+.. code-block:: jinja
+
+    {{ now|date('d/m/Y') }}
+
+In this case, the extra arguments are passed to the function after the main
+argument, and the compiled code is equivalent to:
+
+.. code-block:: html+php
+
+    <?php echo twig_date_format_filter($now, 'd/m/Y') ?>
+
+Let's see how to create a new filter.
+
+In this section, we will create a ``rot13`` filter, which should return the
+`rot13`_ transformation of a string. Here is an example of its usage and the
+expected output:
+
+.. code-block:: jinja
+
+    {{ "Twig"|rot13 }}
+
+    {# should displays Gjvt #}
+
+Adding a filter is as simple as calling the ``addFilter()`` method on the
+``Twig_Environment`` instance::
+
+    $twig = new Twig_Environment($loader);
+    $twig->addFilter('rot13', new Twig_Filter_Function('str_rot13'));
+
+The second argument of ``addFilter()`` is an instance of ``Twig_Filter``.
+Here, we use ``Twig_Filter_Function`` as the filter is a PHP function. The
+first argument passed to the ``Twig_Filter_Function`` constructor is the name
+of the PHP function to call, here ``str_rot13``, a native PHP function.
+
+Let's say I now want to be able to add a prefix before the converted string:
+
+.. code-block:: jinja
+
+    {{ "Twig"|rot13('prefix_') }}
+
+    {# should displays prefix_Gjvt #}
+
+As the PHP ``str_rot13()`` function does not support this requirement, let's
+create a new PHP function::
+
+    function project_compute_rot13($string, $prefix = '')
+    {
+        return $prefix.str_rot13($string);
+    }
+
+As you can see, the ``prefix`` argument of the filter is passed as an extra
+argument to the ``project_compute_rot13()`` function.
+
+Adding this filter is as easy as before::
+
+    $twig->addFilter('rot13', new Twig_Filter_Function('project_compute_rot13'));
+
+For better encapsulation, a filter can also be defined as a static method of a
+class. The ``Twig_Filter_Function`` class can also be used to register such
+static methods as filters::
+
+    $twig->addFilter('rot13', new Twig_Filter_Function('SomeClass::rot13Filter'));
+
+.. tip::
+
+    In an extension, you can also define a filter as a static method of the
+    extension class.
+
+Environment aware Filters
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The ``Twig_Filter`` classes take options as their last argument. For instance,
+if you want access to the current environment instance in your filter, set the
+``needs_environment`` option to ``true``::
+
+    $filter = new Twig_Filter_Function('str_rot13', array('needs_environment' => true));
+
+Twig will then pass the current environment as the first argument to the
+filter call::
+
+    function twig_compute_rot13(Twig_Environment $env, $string)
+    {
+        // get the current charset for instance
+        $charset = $env->getCharset();
+
+        return str_rot13($string);
+    }
+
+Automatic Escaping
+~~~~~~~~~~~~~~~~~~
+
+If automatic escaping is enabled, the output of the filter may be escaped
+before printing. If your filter acts as an escaper (or explicitly outputs HTML
+or JavaScript code), you will want the raw output to be printed. In such a
+case, set the ``is_safe`` option::
+
+    $filter = new Twig_Filter_Function('nl2br', array('is_safe' => array('html')));
+
+Some filters may need to work on input that is already escaped or safe, for
+example when adding (safe) HTML tags to originally unsafe output. In such a
+case, set the ``pre_escape`` option to escape the input data before it is run
+through your filter::
+
+    $filter = new Twig_Filter_Function('somefilter', array('pre_escape' => 'html', 'is_safe' => array('html')));
+
+Dynamic Filters
+~~~~~~~~~~~~~~~
+
+.. versionadded:: 1.5
+    Dynamic filters support was added in Twig 1.5.
+
+A filter name containing the special ``*`` character is a dynamic filter as
+the ``*`` can be any string::
+
+    $twig->addFilter('*_path_*', new Twig_Filter_Function('twig_path'));
+
+    function twig_path($name, $arguments)
+    {
+        // ...
+    }
+
+The following filters will be matched by the above defined dynamic filter:
+
+* ``product_path``
+* ``category_path``
+
+A dynamic filter can define more than one dynamic parts::
+
+    $twig->addFilter('*_path_*', new Twig_Filter_Function('twig_path'));
+
+    function twig_path($name, $suffix, $arguments)
+    {
+        // ...
+    }
+
+The filter will receive all dynamic part values before the normal filters
+arguments. For instance, a call to ``'foo'|a_path_b()`` will result in the
+following PHP call: ``twig_path('a', 'b', 'foo')``.
+
+Functions
+---------
+
+A function is a regular PHP function or an object method that can be called from
+templates.
+
+.. code-block:: jinja
+
+    {{ constant("DATE_W3C") }}
+
+When compiling this template to PHP, Twig looks for the PHP callable
+associated with the ``constant`` function. The ``constant`` function is a built-in Twig
+function, and it is simply mapped to the PHP ``constant()`` function. After
+compilation, the generated PHP code is roughly equivalent to:
+
+.. code-block:: html+php
+
+    <?php echo constant('DATE_W3C') ?>
+
+Adding a function is similar to adding a filter. This can be done by calling the
+``addFunction()`` method on the ``Twig_Environment`` instance::
+
+    $twig = new Twig_Environment($loader);
+    $twig->addFunction('functionName', new Twig_Function_Function('someFunction'));
+
+You can also expose extension methods as functions in your templates::
+
+    // $this is an object that implements Twig_ExtensionInterface.
+    $twig = new Twig_Environment($loader);
+    $twig->addFunction('otherFunction', new Twig_Function_Method($this, 'someMethod'));
+
+Functions also support ``needs_environment`` and ``is_safe`` parameters.
+
+Dynamic Functions
+~~~~~~~~~~~~~~~~~
+
+.. versionadded:: 1.5
+    Dynamic functions support was added in Twig 1.5.
+
+A function name containing the special ``*`` character is a dynamic function
+as the ``*`` can be any string::
+
+    $twig->addFunction('*_path', new Twig_Function_Function('twig_path'));
+
+    function twig_path($name, $arguments)
+    {
+        // ...
+    }
+
+The following functions will be matched by the above defined dynamic function:
+
+* ``product_path``
+* ``category_path``
+
+A dynamic function can define more than one dynamic parts::
+
+    $twig->addFilter('*_path_*', new Twig_Filter_Function('twig_path'));
+
+    function twig_path($name, $suffix, $arguments)
+    {
+        // ...
+    }
+
+The function will receive all dynamic part values before the normal functions
+arguments. For instance, a call to ``a_path_b('foo')`` will result in the
+following PHP call: ``twig_path('a', 'b', 'foo')``.
+
+Tags
+----
+
+One of the most exciting feature of a template engine like Twig is the
+possibility to define new language constructs. This is also the most complex
+feature as you need to understand how Twig's internals work.
+
+Let's create a simple ``set`` tag that allows the definition of simple
+variables from within a template. The tag can be used like follows:
+
+.. code-block:: jinja
+
+    {% set name = "value" %}
+
+    {{ name }}
+
+    {# should output value #}
+
+.. note::
+
+    The ``set`` tag is part of the Core extension and as such is always
+    available. The built-in version is slightly more powerful and supports
+    multiple assignments by default (cf. the template designers chapter for
+    more information).
+
+Three steps are needed to define a new tag:
+
+* Defining a Token Parser class (responsible for parsing the template code);
+
+* Defining a Node class (responsible for converting the parsed code to PHP);
+
+* Registering the tag.
+
+Registering a new tag
+~~~~~~~~~~~~~~~~~~~~~
+
+Adding a tag is as simple as calling the ``addTokenParser`` method on the
+``Twig_Environment`` instance::
+
+    $twig = new Twig_Environment($loader);
+    $twig->addTokenParser(new Project_Set_TokenParser());
+
+Defining a Token Parser
+~~~~~~~~~~~~~~~~~~~~~~~
+
+Now, let's see the actual code of this class::
+
+    class Project_Set_TokenParser extends Twig_TokenParser
+    {
+        public function parse(Twig_Token $token)
+        {
+            $lineno = $token->getLine();
+            $name = $this->parser->getStream()->expect(Twig_Token::NAME_TYPE)->getValue();
+            $this->parser->getStream()->expect(Twig_Token::OPERATOR_TYPE, '=');
+            $value = $this->parser->getExpressionParser()->parseExpression();
+
+            $this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
+
+            return new Project_Set_Node($name, $value, $lineno, $this->getTag());
+        }
+
+        public function getTag()
+        {
+            return 'set';
+        }
+    }
+
+The ``getTag()`` method must return the tag we want to parse, here ``set``.
+
+The ``parse()`` method is invoked whenever the parser encounters a ``set``
+tag. It should return a ``Twig_Node`` instance that represents the node (the
+``Project_Set_Node`` calls creating is explained in the next section).
+
+The parsing process is simplified thanks to a bunch of methods you can call
+from the token stream (``$this->parser->getStream()``):
+
+* ``getCurrent()``: Gets the current token in the stream.
+
+* ``next()``: Moves to the next token in the stream, *but returns the old one*.
+
+* ``test($type)``, ``test($value)`` or ``test($type, $value)``: Determines whether
+  the current token is of a particular type or value (or both). The value may be an
+  array of several possible values.
+
+* ``expect($type[, $value[, $message]])``: If the current token isn't of the given
+  type/value a syntax error is thrown. Otherwise, if the type and value are correct,
+  the token is returned and the stream moves to the next token.
+
+* ``look()``: Looks a the next token without consuming it.
+
+Parsing expressions is done by calling the ``parseExpression()`` like we did for
+the ``set`` tag.
+
+.. tip::
+
+    Reading the existing ``TokenParser`` classes is the best way to learn all
+    the nitty-gritty details of the parsing process.
+
+Defining a Node
+~~~~~~~~~~~~~~~
+
+The ``Project_Set_Node`` class itself is rather simple::
+
+    class Project_Set_Node extends Twig_Node
+    {
+        public function __construct($name, Twig_Node_Expression $value, $lineno, $tag = null)
+        {
+            parent::__construct(array('value' => $value), array('name' => $name), $lineno, $tag);
+        }
+
+        public function compile(Twig_Compiler $compiler)
+        {
+            $compiler
+                ->addDebugInfo($this)
+                ->write('$context[\''.$this->getAttribute('name').'\'] = ')
+                ->subcompile($this->getNode('value'))
+                ->raw(";\n")
+            ;
+        }
+    }
+
+The compiler implements a fluid interface and provides methods that helps the
+developer generate beautiful and readable PHP code:
+
+* ``subcompile()``: Compiles a node.
+
+* ``raw()``: Writes the given string as is.
+
+* ``write()``: Writes the given string by adding indentation at the beginning
+  of each line.
+
+* ``string()``: Writes a quoted string.
+
+* ``repr()``: Writes a PHP representation of a given value (see
+  ``Twig_Node_For`` for a usage example).
+
+* ``addDebugInfo()``: Adds the line of the original template file related to
+  the current node as a comment.
+
+* ``indent()``: Indents the generated code (see ``Twig_Node_Block`` for a
+  usage example).
+
+* ``outdent()``: Outdents the generated code (see ``Twig_Node_Block`` for a
+  usage example).
+
+.. _creating_extensions:
+
+Creating an Extension
+---------------------
+
+The main motivation for writing an extension is to move often used code into a
+reusable class like adding support for internationalization. An extension can
+define tags, filters, tests, operators, global variables, functions, and node
+visitors.
+
+Creating an extension also makes for a better separation of code that is
+executed at compilation time and code needed at runtime. As such, it makes
+your code faster.
+
+Most of the time, it is useful to create a single extension for your project,
+to host all the specific tags and filters you want to add to Twig.
+
+.. tip::
+
+    When packaging your code into an extension, Twig is smart enough to
+    recompile your templates whenever you make a change to it (when the
+    ``auto_reload`` is enabled).
+
+.. note::
+
+    Before writing your own extensions, have a look at the Twig official
+    extension repository: http://github.com/twigphp/Twig-extensions.
+
+An extension is a class that implements the following interface::
+
+    interface Twig_ExtensionInterface
+    {
+        /**
+         * Initializes the runtime environment.
+         *
+         * This is where you can load some file that contains filter functions for instance.
+         *
+         * @param Twig_Environment $environment The current Twig_Environment instance
+         */
+        function initRuntime(Twig_Environment $environment);
+
+        /**
+         * Returns the token parser instances to add to the existing list.
+         *
+         * @return array An array of Twig_TokenParserInterface or Twig_TokenParserBrokerInterface instances
+         */
+        function getTokenParsers();
+
+        /**
+         * Returns the node visitor instances to add to the existing list.
+         *
+         * @return array An array of Twig_NodeVisitorInterface instances
+         */
+        function getNodeVisitors();
+
+        /**
+         * Returns a list of filters to add to the existing list.
+         *
+         * @return array An array of filters
+         */
+        function getFilters();
+
+        /**
+         * Returns a list of tests to add to the existing list.
+         *
+         * @return array An array of tests
+         */
+        function getTests();
+
+        /**
+         * Returns a list of functions to add to the existing list.
+         *
+         * @return array An array of functions
+         */
+        function getFunctions();
+
+        /**
+         * Returns a list of operators to add to the existing list.
+         *
+         * @return array An array of operators
+         */
+        function getOperators();
+
+        /**
+         * Returns a list of global variables to add to the existing list.
+         *
+         * @return array An array of global variables
+         */
+        function getGlobals();
+
+        /**
+         * Returns the name of the extension.
+         *
+         * @return string The extension name
+         */
+        function getName();
+    }
+
+To keep your extension class clean and lean, it can inherit from the built-in
+``Twig_Extension`` class instead of implementing the whole interface. That
+way, you just need to implement the ``getName()`` method as the
+``Twig_Extension`` provides empty implementations for all other methods.
+
+The ``getName()`` method must return a unique identifier for your extension.
+
+Now, with this information in mind, let's create the most basic extension
+possible::
+
+    class Project_Twig_Extension extends Twig_Extension
+    {
+        public function getName()
+        {
+            return 'project';
+        }
+    }
+
+.. note::
+
+    Of course, this extension does nothing for now. We will customize it in
+    the next sections.
+
+Twig does not care where you save your extension on the filesystem, as all
+extensions must be registered explicitly to be available in your templates.
+
+You can register an extension by using the ``addExtension()`` method on your
+main ``Environment`` object::
+
+    $twig = new Twig_Environment($loader);
+    $twig->addExtension(new Project_Twig_Extension());
+
+Of course, you need to first load the extension file by either using
+``require_once()`` or by using an autoloader (see `spl_autoload_register()`_).
+
+.. tip::
+
+    The bundled extensions are great examples of how extensions work.
+
+Globals
+~~~~~~~
+
+Global variables can be registered in an extension via the ``getGlobals()``
+method::
+
+    class Project_Twig_Extension extends Twig_Extension
+    {
+        public function getGlobals()
+        {
+            return array(
+                'text' => new Text(),
+            );
+        }
+
+        // ...
+    }
+
+Functions
+~~~~~~~~~
+
+Functions can be registered in an extension via the ``getFunctions()``
+method::
+
+    class Project_Twig_Extension extends Twig_Extension
+    {
+        public function getFunctions()
+        {
+            return array(
+                'lipsum' => new Twig_Function_Function('generate_lipsum'),
+            );
+        }
+
+        // ...
+    }
+
+Filters
+~~~~~~~
+
+To add a filter to an extension, you need to override the ``getFilters()``
+method. This method must return an array of filters to add to the Twig
+environment::
+
+    class Project_Twig_Extension extends Twig_Extension
+    {
+        public function getFilters()
+        {
+            return array(
+                'rot13' => new Twig_Filter_Function('str_rot13'),
+            );
+        }
+
+        // ...
+    }
+
+As you can see in the above code, the ``getFilters()`` method returns an array
+where keys are the name of the filters (``rot13``) and the values the
+definition of the filter (``new Twig_Filter_Function('str_rot13')``).
+
+As seen in the previous chapter, you can also define filters as static methods
+on the extension class::
+
+$twig->addFilter('rot13', new Twig_Filter_Function('Project_Twig_Extension::rot13Filter'));
+
+You can also use ``Twig_Filter_Method`` instead of ``Twig_Filter_Function``
+when defining a filter to use a method::
+
+    class Project_Twig_Extension extends Twig_Extension
+    {
+        public function getFilters()
+        {
+            return array(
+                'rot13' => new Twig_Filter_Method($this, 'rot13Filter'),
+            );
+        }
+
+        public function rot13Filter($string)
+        {
+            return str_rot13($string);
+        }
+
+        // ...
+    }
+
+The first argument of the ``Twig_Filter_Method`` constructor is always
+``$this``, the current extension object. The second one is the name of the
+method to call.
+
+Using methods for filters is a great way to package your filter without
+polluting the global namespace. This also gives the developer more flexibility
+at the cost of a small overhead.
+
+Overriding default Filters
+..........................
+
+If some default core filters do not suit your needs, you can easily override
+them by creating your own extension. Just use the same names as the one you
+want to override::
+
+    class MyCoreExtension extends Twig_Extension
+    {
+        public function getFilters()
+        {
+            return array(
+                'date' => new Twig_Filter_Method($this, 'dateFilter'),
+                // ...
+            );
+        }
+
+        public function dateFilter($timestamp, $format = 'F j, Y H:i')
+        {
+            return '...'.twig_date_format_filter($timestamp, $format);
+        }
+
+        public function getName()
+        {
+            return 'project';
+        }
+    }
+
+Here, we override the ``date`` filter with a custom one. Using this extension
+is as simple as registering the ``MyCoreExtension`` extension by calling the
+``addExtension()`` method on the environment instance::
+
+    $twig = new Twig_Environment($loader);
+    $twig->addExtension(new MyCoreExtension());
+
+Tags
+~~~~
+
+Adding a tag in an extension can be done by overriding the
+``getTokenParsers()`` method. This method must return an array of tags to add
+to the Twig environment::
+
+    class Project_Twig_Extension extends Twig_Extension
+    {
+        public function getTokenParsers()
+        {
+            return array(new Project_Set_TokenParser());
+        }
+
+        // ...
+    }
+
+In the above code, we have added a single new tag, defined by the
+``Project_Set_TokenParser`` class. The ``Project_Set_TokenParser`` class is
+responsible for parsing the tag and compiling it to PHP.
+
+Operators
+~~~~~~~~~
+
+The ``getOperators()`` methods allows to add new operators. Here is how to add
+``!``, ``||``, and ``&&`` operators::
+
+    class Project_Twig_Extension extends Twig_Extension
+    {
+        public function getOperators()
+        {
+            return array(
+                array(
+                    '!' => array('precedence' => 50, 'class' => 'Twig_Node_Expression_Unary_Not'),
+                ),
+                array(
+                    '||' => array('precedence' => 10, 'class' => 'Twig_Node_Expression_Binary_Or', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                    '&&' => array('precedence' => 15, 'class' => 'Twig_Node_Expression_Binary_And', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                ),
+            );
+        }
+
+        // ...
+    }
+
+Tests
+~~~~~
+
+The ``getTests()`` methods allows to add new test functions::
+
+    class Project_Twig_Extension extends Twig_Extension
+    {
+        public function getTests()
+        {
+            return array(
+                'even' => new Twig_Test_Function('twig_test_even'),
+            );
+        }
+
+        // ...
+    }
+
+Testing an Extension
+--------------------
+
+.. versionadded:: 1.10
+    Support for functional tests was added in Twig 1.10.
+
+Functional Tests
+~~~~~~~~~~~~~~~~
+
+You can create functional tests for extensions simply by creating the
+following file structure in your test directory::
+
+    Fixtures/
+        filters/
+            foo.test
+            bar.test
+        functions/
+            foo.test
+            bar.test
+        tags/
+            foo.test
+            bar.test
+    IntegrationTest.php
+
+The ``IntegrationTest.php`` file should look like this::
+
+    class Project_Tests_IntegrationTest extends Twig_Test_IntegrationTestCase
+    {
+        public function getExtensions()
+        {
+            return array(
+                new Project_Twig_Extension1(),
+                new Project_Twig_Extension2(),
+            );
+        }
+
+        public function getFixturesDir()
+        {
+            return dirname(__FILE__).'/Fixtures/';
+        }
+    }
+
+Fixtures examples can be found within the Twig repository
+`tests/Twig/Fixtures`_ directory.
+
+Node Tests
+~~~~~~~~~~
+
+Testing the node visitors can be complex, so extend your test cases from
+``Twig_Test_NodeTestCase``. Examples can be found in the Twig repository
+`tests/Twig/Node`_ directory.
+
+.. _`spl_autoload_register()`: http://www.php.net/spl_autoload_register
+.. _`rot13`:                   http://www.php.net/manual/en/function.str-rot13.php
+.. _`tests/Twig/Fixtures`:     https://github.com/twigphp/Twig/tree/master/test/Twig/Tests/Fixtures
+.. _`tests/Twig/Node`:         https://github.com/twigphp/Twig/tree/master/test/Twig/Tests/Node
diff --git a/vendor/twig/twig/doc/api.rst b/vendor/twig/twig/doc/api.rst
new file mode 100644
index 000000000..f367db07a
--- /dev/null
+++ b/vendor/twig/twig/doc/api.rst
@@ -0,0 +1,552 @@
+Twig for Developers
+===================
+
+This chapter describes the API to Twig and not the template language. It will
+be most useful as reference to those implementing the template interface to
+the application and not those who are creating Twig templates.
+
+Basics
+------
+
+Twig uses a central object called the **environment** (of class
+``Twig_Environment``). Instances of this class are used to store the
+configuration and extensions, and are used to load templates from the file
+system or other locations.
+
+Most applications will create one ``Twig_Environment`` object on application
+initialization and use that to load templates. In some cases it's however
+useful to have multiple environments side by side, if different configurations
+are in use.
+
+The simplest way to configure Twig to load templates for your application
+looks roughly like this::
+
+    require_once '/path/to/lib/Twig/Autoloader.php';
+    Twig_Autoloader::register();
+
+    $loader = new Twig_Loader_Filesystem('/path/to/templates');
+    $twig = new Twig_Environment($loader, array(
+        'cache' => '/path/to/compilation_cache',
+    ));
+
+This will create a template environment with the default settings and a loader
+that looks up the templates in the ``/path/to/templates/`` folder. Different
+loaders are available and you can also write your own if you want to load
+templates from a database or other resources.
+
+.. note::
+
+    Notice that the second argument of the environment is an array of options.
+    The ``cache`` option is a compilation cache directory, where Twig caches
+    the compiled templates to avoid the parsing phase for sub-sequent
+    requests. It is very different from the cache you might want to add for
+    the evaluated templates. For such a need, you can use any available PHP
+    cache library.
+
+To load a template from this environment you just have to call the
+``loadTemplate()`` method which then returns a ``Twig_Template`` instance::
+
+    $template = $twig->loadTemplate('index.html');
+
+To render the template with some variables, call the ``render()`` method::
+
+    echo $template->render(array('the' => 'variables', 'go' => 'here'));
+
+.. note::
+
+    The ``display()`` method is a shortcut to output the template directly.
+
+You can also load and render the template in one fell swoop::
+
+    echo $twig->render('index.html', array('the' => 'variables', 'go' => 'here'));
+
+.. _environment_options:
+
+Environment Options
+-------------------
+
+When creating a new ``Twig_Environment`` instance, you can pass an array of
+options as the constructor second argument::
+
+    $twig = new Twig_Environment($loader, array('debug' => true));
+
+The following options are available:
+
+* ``debug`` *boolean*
+
+  When set to ``true``, the generated templates have a
+  ``__toString()`` method that you can use to display the generated nodes
+  (default to ``false``).
+
+* ``charset`` *string (default to ``utf-8``)*
+
+  The charset used by the templates.
+
+* ``base_template_class`` *string (default to ``Twig_Template``)*
+
+  The base template class to use for generated
+  templates.
+
+* ``cache`` *string|false*
+
+  An absolute path where to store the compiled templates, or
+  ``false`` to disable caching (which is the default).
+
+* ``auto_reload`` *boolean*
+
+  When developing with Twig, it's useful to recompile the
+  template whenever the source code changes. If you don't provide a value for
+  the ``auto_reload`` option, it will be determined automatically based on the
+  ``debug`` value.
+
+* ``strict_variables`` *boolean*
+
+  If set to ``false``, Twig will silently ignore invalid
+  variables (variables and or attributes/methods that do not exist) and
+  replace them with a ``null`` value. When set to ``true``, Twig throws an
+  exception instead (default to ``false``).
+
+* ``autoescape`` *string|boolean*
+
+  If set to ``true``, HTML auto-escaping will be enabled by
+  default for all templates (default to ``true``).
+
+  As of Twig 1.8, you can set the escaping strategy to use (``html``, ``js``,
+  ``false`` to disable).
+
+  As of Twig 1.9, you can set the escaping strategy to use (``css``, ``url``,
+  ``html_attr``, or a PHP callback that takes the template "filename" and must
+  return the escaping strategy to use -- the callback cannot be a function name
+  to avoid collision with built-in escaping strategies).
+
+  As of Twig 1.17, the ``filename`` escaping strategy determines the escaping
+  strategy to use for a template based on the template filename extension (this
+  strategy does not incur any overhead at runtime as auto-escaping is done at
+  compilation time.)
+
+* ``optimizations`` *integer*
+
+  A flag that indicates which optimizations to apply
+  (default to ``-1`` -- all optimizations are enabled; set it to ``0`` to
+  disable).
+
+Loaders
+-------
+
+Loaders are responsible for loading templates from a resource such as the file
+system.
+
+Compilation Cache
+~~~~~~~~~~~~~~~~~
+
+All template loaders can cache the compiled templates on the filesystem for
+future reuse. It speeds up Twig a lot as templates are only compiled once; and
+the performance boost is even larger if you use a PHP accelerator such as APC.
+See the ``cache`` and ``auto_reload`` options of ``Twig_Environment`` above
+for more information.
+
+Built-in Loaders
+~~~~~~~~~~~~~~~~
+
+Here is a list of the built-in loaders Twig provides:
+
+``Twig_Loader_Filesystem``
+..........................
+
+.. versionadded:: 1.10
+    The ``prependPath()`` and support for namespaces were added in Twig 1.10.
+
+``Twig_Loader_Filesystem`` loads templates from the file system. This loader
+can find templates in folders on the file system and is the preferred way to
+load them::
+
+    $loader = new Twig_Loader_Filesystem($templateDir);
+
+It can also look for templates in an array of directories::
+
+    $loader = new Twig_Loader_Filesystem(array($templateDir1, $templateDir2));
+
+With such a configuration, Twig will first look for templates in
+``$templateDir1`` and if they do not exist, it will fallback to look for them
+in the ``$templateDir2``.
+
+You can add or prepend paths via the ``addPath()`` and ``prependPath()``
+methods::
+
+    $loader->addPath($templateDir3);
+    $loader->prependPath($templateDir4);
+
+The filesystem loader also supports namespaced templates. This allows to group
+your templates under different namespaces which have their own template paths.
+
+When using the ``setPaths()``, ``addPath()``, and ``prependPath()`` methods,
+specify the namespace as the second argument (when not specified, these
+methods act on the "main" namespace)::
+
+    $loader->addPath($templateDir, 'admin');
+
+Namespaced templates can be accessed via the special
+``@namespace_name/template_path`` notation::
+
+    $twig->render('@admin/index.html', array());
+
+``Twig_Loader_Array``
+.....................
+
+``Twig_Loader_Array`` loads a template from a PHP array. It's passed an array
+of strings bound to template names::
+
+    $loader = new Twig_Loader_Array(array(
+        'index.html' => 'Hello {{ name }}!',
+    ));
+    $twig = new Twig_Environment($loader);
+
+    echo $twig->render('index.html', array('name' => 'Fabien'));
+
+This loader is very useful for unit testing. It can also be used for small
+projects where storing all templates in a single PHP file might make sense.
+
+.. tip::
+
+    When using the ``Array`` or ``String`` loaders with a cache mechanism, you
+    should know that a new cache key is generated each time a template content
+    "changes" (the cache key being the source code of the template). If you
+    don't want to see your cache grows out of control, you need to take care
+    of clearing the old cache file by yourself.
+
+``Twig_Loader_Chain``
+.....................
+
+``Twig_Loader_Chain`` delegates the loading of templates to other loaders::
+
+    $loader1 = new Twig_Loader_Array(array(
+        'base.html' => '{% block content %}{% endblock %}',
+    ));
+    $loader2 = new Twig_Loader_Array(array(
+        'index.html' => '{% extends "base.html" %}{% block content %}Hello {{ name }}{% endblock %}',
+        'base.html'  => 'Will never be loaded',
+    ));
+
+    $loader = new Twig_Loader_Chain(array($loader1, $loader2));
+
+    $twig = new Twig_Environment($loader);
+
+When looking for a template, Twig will try each loader in turn and it will
+return as soon as the template is found. When rendering the ``index.html``
+template from the above example, Twig will load it with ``$loader2`` but the
+``base.html`` template will be loaded from ``$loader1``.
+
+``Twig_Loader_Chain`` accepts any loader that implements
+``Twig_LoaderInterface``.
+
+.. note::
+
+    You can also add loaders via the ``addLoader()`` method.
+
+Create your own Loader
+~~~~~~~~~~~~~~~~~~~~~~
+
+All loaders implement the ``Twig_LoaderInterface``::
+
+    interface Twig_LoaderInterface
+    {
+        /**
+         * Gets the source code of a template, given its name.
+         *
+         * @param  string $name string The name of the template to load
+         *
+         * @return string The template source code
+         */
+        function getSource($name);
+
+        /**
+         * Gets the cache key to use for the cache for a given template name.
+         *
+         * @param  string $name string The name of the template to load
+         *
+         * @return string The cache key
+         */
+        function getCacheKey($name);
+
+        /**
+         * Returns true if the template is still fresh.
+         *
+         * @param string    $name The template name
+         * @param timestamp $time The last modification time of the cached template
+         */
+        function isFresh($name, $time);
+    }
+
+The ``isFresh()`` method must return ``true`` if the current cached template
+is still fresh, given the last modification time, or ``false`` otherwise.
+
+.. tip::
+
+    As of Twig 1.11.0, you can also implement ``Twig_ExistsLoaderInterface``
+    to make your loader faster when used with the chain loader.
+
+Using Extensions
+----------------
+
+Twig extensions are packages that add new features to Twig. Using an
+extension is as simple as using the ``addExtension()`` method::
+
+    $twig->addExtension(new Twig_Extension_Sandbox());
+
+Twig comes bundled with the following extensions:
+
+* *Twig_Extension_Core*: Defines all the core features of Twig.
+
+* *Twig_Extension_Escaper*: Adds automatic output-escaping and the possibility
+  to escape/unescape blocks of code.
+
+* *Twig_Extension_Sandbox*: Adds a sandbox mode to the default Twig
+  environment, making it safe to evaluate untrusted code.
+
+* *Twig_Extension_Profiler*: Enabled the built-in Twig profiler (as of Twig
+  1.18).
+
+* *Twig_Extension_Optimizer*: Optimizes the node tree before compilation.
+
+The core, escaper, and optimizer extensions do not need to be added to the
+Twig environment, as they are registered by default.
+
+Built-in Extensions
+-------------------
+
+This section describes the features added by the built-in extensions.
+
+.. tip::
+
+    Read the chapter about extending Twig to learn how to create your own
+    extensions.
+
+Core Extension
+~~~~~~~~~~~~~~
+
+The ``core`` extension defines all the core features of Twig:
+
+* :doc:`Tags <tags/index>`;
+* :doc:`Filters <filters/index>`;
+* :doc:`Functions <functions/index>`;
+* :doc:`Tests <tests/index>`.
+
+Escaper Extension
+~~~~~~~~~~~~~~~~~
+
+The ``escaper`` extension adds automatic output escaping to Twig. It defines a
+tag, ``autoescape``, and a filter, ``raw``.
+
+When creating the escaper extension, you can switch on or off the global
+output escaping strategy::
+
+    $escaper = new Twig_Extension_Escaper('html');
+    $twig->addExtension($escaper);
+
+If set to ``html``, all variables in templates are escaped (using the ``html``
+escaping strategy), except those using the ``raw`` filter:
+
+.. code-block:: jinja
+
+    {{ article.to_html|raw }}
+
+You can also change the escaping mode locally by using the ``autoescape`` tag
+(see the :doc:`autoescape<tags/autoescape>` doc for the syntax used before
+Twig 1.8):
+
+.. code-block:: jinja
+
+    {% autoescape 'html' %}
+        {{ var }}
+        {{ var|raw }}      {# var won't be escaped #}
+        {{ var|escape }}   {# var won't be double-escaped #}
+    {% endautoescape %}
+
+.. warning::
+
+    The ``autoescape`` tag has no effect on included files.
+
+The escaping rules are implemented as follows:
+
+* Literals (integers, booleans, arrays, ...) used in the template directly as
+  variables or filter arguments are never automatically escaped:
+
+  .. code-block:: jinja
+
+        {{ "Twig<br />" }} {# won't be escaped #}
+
+        {% set text = "Twig<br />" %}
+        {{ text }} {# will be escaped #}
+
+* Expressions which the result is always a literal or a variable marked safe
+  are never automatically escaped:
+
+  .. code-block:: jinja
+
+        {{ foo ? "Twig<br />" : "<br />Twig" }} {# won't be escaped #}
+
+        {% set text = "Twig<br />" %}
+        {{ foo ? text : "<br />Twig" }} {# will be escaped #}
+
+        {% set text = "Twig<br />" %}
+        {{ foo ? text|raw : "<br />Twig" }} {# won't be escaped #}
+
+        {% set text = "Twig<br />" %}
+        {{ foo ? text|escape : "<br />Twig" }} {# the result of the expression won't be escaped #}
+
+* Escaping is applied before printing, after any other filter is applied:
+
+  .. code-block:: jinja
+
+        {{ var|upper }} {# is equivalent to {{ var|upper|escape }} #}
+
+* The `raw` filter should only be used at the end of the filter chain:
+
+  .. code-block:: jinja
+
+        {{ var|raw|upper }} {# will be escaped #}
+
+        {{ var|upper|raw }} {# won't be escaped #}
+
+* Automatic escaping is not applied if the last filter in the chain is marked
+  safe for the current context (e.g. ``html`` or ``js``). ``escape`` and
+  ``escape('html')`` are marked safe for HTML, ``escape('js')`` is marked
+  safe for JavaScript, ``raw`` is marked safe for everything.
+
+  .. code-block:: jinja
+
+        {% autoescape 'js' %}
+            {{ var|escape('html') }} {# will be escaped for HTML and JavaScript #}
+            {{ var }} {# will be escaped for JavaScript #}
+            {{ var|escape('js') }} {# won't be double-escaped #}
+        {% endautoescape %}
+
+.. note::
+
+    Note that autoescaping has some limitations as escaping is applied on
+    expressions after evaluation. For instance, when working with
+    concatenation, ``{{ foo|raw ~ bar }}`` won't give the expected result as
+    escaping is applied on the result of the concatenation, not on the
+    individual variables (so, the ``raw`` filter won't have any effect here).
+
+Sandbox Extension
+~~~~~~~~~~~~~~~~~
+
+The ``sandbox`` extension can be used to evaluate untrusted code. Access to
+unsafe attributes and methods is prohibited. The sandbox security is managed
+by a policy instance. By default, Twig comes with one policy class:
+``Twig_Sandbox_SecurityPolicy``. This class allows you to white-list some
+tags, filters, properties, and methods::
+
+    $tags = array('if');
+    $filters = array('upper');
+    $methods = array(
+        'Article' => array('getTitle', 'getBody'),
+    );
+    $properties = array(
+        'Article' => array('title', 'body'),
+    );
+    $functions = array('range');
+    $policy = new Twig_Sandbox_SecurityPolicy($tags, $filters, $methods, $properties, $functions);
+
+With the previous configuration, the security policy will only allow usage of
+the ``if`` tag, and the ``upper`` filter. Moreover, the templates will only be
+able to call the ``getTitle()`` and ``getBody()`` methods on ``Article``
+objects, and the ``title`` and ``body`` public properties. Everything else
+won't be allowed and will generate a ``Twig_Sandbox_SecurityError`` exception.
+
+The policy object is the first argument of the sandbox constructor::
+
+    $sandbox = new Twig_Extension_Sandbox($policy);
+    $twig->addExtension($sandbox);
+
+By default, the sandbox mode is disabled and should be enabled when including
+untrusted template code by using the ``sandbox`` tag:
+
+.. code-block:: jinja
+
+    {% sandbox %}
+        {% include 'user.html' %}
+    {% endsandbox %}
+
+You can sandbox all templates by passing ``true`` as the second argument of
+the extension constructor::
+
+    $sandbox = new Twig_Extension_Sandbox($policy, true);
+
+Profiler Extension
+~~~~~~~~~~~~~~~~~~
+
+.. versionadded:: 1.18
+    The Profile extension was added in Twig 1.18.
+
+The ``profiler`` extension enables a profiler for Twig templates; it should
+only be used on your development machines as it adds some overhead::
+
+    $profile = new Twig_Profiler_Profile();
+    $twig->addExtension(new Twig_Extension_Profiler($profile));
+
+    $dumper = new Twig_Profiler_Dumper_Text();
+    echo $dumper->dump($profile);
+
+A profile contains information about time and memory consumption for template,
+block, and macro executions.
+
+You can also dump the data in a `Blackfire.io <https://blackfire.io/>`_
+compatible format::
+
+    $dumper = new Twig_Profiler_Dumper_Blackfire();
+    file_put_contents('/path/to/profile.prof', $dumper->dump($profile));
+
+Upload the profile to visualize it (create a `free account
+<https://blackfire.io/signup>`_ first):
+
+.. code-block:: sh
+
+    blackfire --slot=7 upload /path/to/profile.prof
+
+Optimizer Extension
+~~~~~~~~~~~~~~~~~~~
+
+The ``optimizer`` extension optimizes the node tree before compilation::
+
+    $twig->addExtension(new Twig_Extension_Optimizer());
+
+By default, all optimizations are turned on. You can select the ones you want
+to enable by passing them to the constructor::
+
+    $optimizer = new Twig_Extension_Optimizer(Twig_NodeVisitor_Optimizer::OPTIMIZE_FOR);
+
+    $twig->addExtension($optimizer);
+
+Twig supports the following optimizations:
+
+* ``Twig_NodeVisitor_Optimizer::OPTIMIZE_ALL``, enables all optimizations
+  (this is the default value).
+* ``Twig_NodeVisitor_Optimizer::OPTIMIZE_NONE``, disables all optimizations.
+  This reduces the compilation time, but it can increase the execution time
+  and the consumed memory.
+* ``Twig_NodeVisitor_Optimizer::OPTIMIZE_FOR``, optimizes the ``for`` tag by
+  removing the ``loop`` variable creation whenever possible.
+* ``Twig_NodeVisitor_Optimizer::OPTIMIZE_RAW_FILTER``, removes the ``raw``
+  filter whenever possible.
+* ``Twig_NodeVisitor_Optimizer::OPTIMIZE_VAR_ACCESS``, simplifies the creation
+  and access of variables in the compiled templates whenever possible.
+
+Exceptions
+----------
+
+Twig can throw exceptions:
+
+* ``Twig_Error``: The base exception for all errors.
+
+* ``Twig_Error_Syntax``: Thrown to tell the user that there is a problem with
+  the template syntax.
+
+* ``Twig_Error_Runtime``: Thrown when an error occurs at runtime (when a filter
+  does not exist for instance).
+
+* ``Twig_Error_Loader``: Thrown when an error occurs during template loading.
+
+* ``Twig_Sandbox_SecurityError``: Thrown when an unallowed tag, filter, or
+  method is called in a sandboxed template.
diff --git a/vendor/twig/twig/doc/coding_standards.rst b/vendor/twig/twig/doc/coding_standards.rst
new file mode 100644
index 000000000..f435df490
--- /dev/null
+++ b/vendor/twig/twig/doc/coding_standards.rst
@@ -0,0 +1,101 @@
+Coding Standards
+================
+
+When writing Twig templates, we recommend you to follow these official coding
+standards:
+
+* Put one (and only one) space after the start of a delimiter (``{{``, ``{%``,
+  and ``{#``) and before the end of a delimiter (``}}``, ``%}``, and ``#}``):
+
+  .. code-block:: jinja
+
+    {{ foo }}
+    {# comment #}
+    {% if foo %}{% endif %}
+
+  When using the whitespace control character, do not put any spaces between
+  it and the delimiter:
+
+  .. code-block:: jinja
+
+    {{- foo -}}
+    {#- comment -#}
+    {%- if foo -%}{%- endif -%}
+
+* Put one (and only one) space before and after the following operators:
+  comparison operators (``==``, ``!=``, ``<``, ``>``, ``>=``, ``<=``), math
+  operators (``+``, ``-``, ``/``, ``*``, ``%``, ``//``, ``**``), logic
+  operators (``not``, ``and``, ``or``), ``~``, ``is``, ``in``, and the ternary
+  operator (``?:``):
+
+  .. code-block:: jinja
+
+     {{ 1 + 2 }}
+     {{ foo ~ bar }}
+     {{ true ? true : false }}
+
+* Put one (and only one) space after the ``:`` sign in hashes and ``,`` in
+  arrays and hashes:
+
+  .. code-block:: jinja
+
+     {{ [1, 2, 3] }}
+     {{ {'foo': 'bar'} }}
+
+* Do not put any spaces after an opening parenthesis and before a closing
+  parenthesis in expressions:
+
+  .. code-block:: jinja
+
+    {{ 1 + (2 * 3) }}
+
+* Do not put any spaces before and after string delimiters:
+
+  .. code-block:: jinja
+
+    {{ 'foo' }}
+    {{ "foo" }}
+
+* Do not put any spaces before and after the following operators: ``|``,
+  ``.``, ``..``, ``[]``:
+
+  .. code-block:: jinja
+
+    {{ foo|upper|lower }}
+    {{ user.name }}
+    {{ user[name] }}
+    {% for i in 1..12 %}{% endfor %}
+
+* Do not put any spaces before and after the parenthesis used for filter and
+  function calls:
+
+  .. code-block:: jinja
+
+     {{ foo|default('foo') }}
+     {{ range(1..10) }}
+
+* Do not put any spaces before and after the opening and the closing of arrays
+  and hashes:
+
+  .. code-block:: jinja
+
+     {{ [1, 2, 3] }}
+     {{ {'foo': 'bar'} }}
+
+* Use lower cased and underscored variable names:
+
+  .. code-block:: jinja
+
+     {% set foo = 'foo' %}
+     {% set foo_bar = 'foo' %}
+
+* Indent your code inside tags (use the same indentation as the one used for
+  the target language of the rendered template):
+
+  .. code-block:: jinja
+
+     {% block foo %}
+        {% if true %}
+            true
+        {% endif %}
+     {% endblock %}
diff --git a/vendor/twig/twig/doc/deprecated.rst b/vendor/twig/twig/doc/deprecated.rst
new file mode 100644
index 000000000..d31f1dd36
--- /dev/null
+++ b/vendor/twig/twig/doc/deprecated.rst
@@ -0,0 +1,162 @@
+Deprecated Features
+===================
+
+This document lists all deprecated features in Twig. Deprecated features are
+kept for backward compatibility and removed in the next major release (a
+feature that was deprecated in Twig 1.x is removed in Twig 2.0).
+
+Deprecation Notices
+-------------------
+
+As of Twig 1.21, Twig generates deprecation notices when a template uses
+deprecated features. See :ref:`deprecation-notices` for more information.
+
+Token Parsers
+-------------
+
+* As of Twig 1.x, the token parser broker sub-system is deprecated. The
+  following class and interface will be removed in 2.0:
+
+  * ``Twig_TokenParserBrokerInterface``
+  * ``Twig_TokenParserBroker``
+
+Extensions
+----------
+
+* As of Twig 1.x, the ability to remove an extension is deprecated and the
+  ``Twig_Environment::removeExtension()`` method will be removed in 2.0.
+
+* As of Twig 1.23, the ``Twig_ExtensionInterface::initRuntime()`` method is
+  deprecated. You have two options to avoid the deprecation notice: if you
+  implement this method to store the environment for your custom filters,
+  functions, or tests, use the ``needs_environment`` option instead; if you
+  have more complex needs, explicitly implement
+  ``Twig_Extension_InitRuntimeInterface`` (not recommended).
+
+* As of Twig 1.23, the ``Twig_ExtensionInterface::getGlobals()`` method is
+  deprecated. Implement ``Twig_Extension_GlobalsInterface`` to avoid
+  deprecation notices.
+
+PEAR
+----
+
+PEAR support has been discontinued in Twig 1.15.1, and no PEAR packages are
+provided anymore. Use Composer instead.
+
+Filters
+-------
+
+* As of Twig 1.x, use ``Twig_SimpleFilter`` to add a filter. The following
+  classes and interfaces will be removed in 2.0:
+
+  * ``Twig_FilterInterface``
+  * ``Twig_FilterCallableInterface``
+  * ``Twig_Filter``
+  * ``Twig_Filter_Function``
+  * ``Twig_Filter_Method``
+  * ``Twig_Filter_Node``
+
+* As of Twig 2.x, the ``Twig_SimpleFilter`` class is deprecated and will be
+  removed in Twig 3.x (use ``Twig_Filter`` instead). In Twig 2.x,
+  ``Twig_SimpleFilter`` is just an alias for ``Twig_Filter``.
+
+Functions
+---------
+
+* As of Twig 1.x, use ``Twig_SimpleFunction`` to add a function. The following
+  classes and interfaces will be removed in 2.0:
+
+  * ``Twig_FunctionInterface``
+  * ``Twig_FunctionCallableInterface``
+  * ``Twig_Function``
+  * ``Twig_Function_Function``
+  * ``Twig_Function_Method``
+  * ``Twig_Function_Node``
+
+* As of Twig 2.x, the ``Twig_SimpleFunction`` class is deprecated and will be
+  removed in Twig 3.x (use ``Twig_Function`` instead). In Twig 2.x,
+  ``Twig_SimpleFunction`` is just an alias for ``Twig_Function``.
+
+Tests
+-----
+
+* As of Twig 1.x, use ``Twig_SimpleTest`` to add a test. The following classes
+  and interfaces will be removed in 2.0:
+
+  * ``Twig_TestInterface``
+  * ``Twig_TestCallableInterface``
+  * ``Twig_Test``
+  * ``Twig_Test_Function``
+  * ``Twig_Test_Method``
+  * ``Twig_Test_Node``
+
+* As of Twig 2.x, the ``Twig_SimpleTest`` class is deprecated and will be
+  removed in Twig 3.x (use ``Twig_Test`` instead). In Twig 2.x,
+  ``Twig_SimpleTest`` is just an alias for ``Twig_Test``.
+
+* The ``sameas`` and ``divisibleby`` tests are deprecated in favor of ``same
+  as`` and ``divisible by`` respectively.
+
+Tags
+----
+
+* As of Twig 1.x, the ``raw`` tag is deprecated. You should use ``verbatim``
+  instead.
+
+Nodes
+-----
+
+* As of Twig 1.x, ``Node::toXml()`` is deprecated and will be removed in Twig
+  2.0.
+
+Interfaces
+----------
+
+* As of Twig 2.x, the following interfaces are deprecated and empty (they will
+  be removed in Twig 3.0):
+
+* ``Twig_CompilerInterface``     (use ``Twig_Compiler`` instead)
+* ``Twig_LexerInterface``        (use ``Twig_Lexer`` instead)
+* ``Twig_NodeInterface``         (use ``Twig_Node`` instead)
+* ``Twig_ParserInterface``       (use ``Twig_Parser`` instead)
+* ``Twig_ExistsLoaderInterface`` (merged with ``Twig_LoaderInterface``)
+* ``Twig_TemplateInterface``     (use ``Twig_Template`` instead, and use
+  those constants Twig_Template::ANY_CALL, Twig_Template::ARRAY_CALL,
+  Twig_Template::METHOD_CALL)
+
+Loaders
+-------
+
+* As of Twig 1.x, ``Twig_Loader_String`` is deprecated and will be removed in
+  2.0. You can render a string via ``Twig_Environment::createTemplate()``.
+
+Node Visitors
+-------------
+
+* Because of the removal of ``Twig_NodeInterface`` in 2.0, you need to extend
+  ``Twig_BaseNodeVisitor`` instead of implementing ``Twig_NodeVisitorInterface``
+  directly to make your node visitors compatible with both Twig 1.x and 2.x.
+
+Globals
+-------
+
+* As of Twig 2.x, the ability to register a global variable after the runtime
+  or the extensions have been initialized is not possible anymore (but
+  changing the value of an already registered global is possible).
+
+* As of Twig 1.x, using the ``_self`` global variable to get access to the
+  current ``Twig_Template`` instance is deprecated; most usages only need the
+  current template name, which will continue to work in Twig 2.0. In Twig 2.0,
+  ``_self`` returns the current template name instead of the current
+  ``Twig_Template`` instance.
+
+Miscellaneous
+-------------
+
+* As of Twig 1.x, ``Twig_Environment::clearTemplateCache()``, ``Twig_Environment::writeCacheFile()``,
+  ``Twig_Environment::clearCacheFiles()``, ``Twig_Environment::getCacheFilename()``, and
+  ``Twig_Environment::getTemplateClassPrefix()`` are deprecated and will be removed in 2.0.
+
+* As of Twig 1.x, ``Twig_Template::getEnvironment()`` and
+  ``Twig_TemplateInterface::getEnvironment()`` are deprecated and will be
+  removed in 2.0.
diff --git a/vendor/twig/twig/doc/filters/abs.rst b/vendor/twig/twig/doc/filters/abs.rst
new file mode 100644
index 000000000..22fa59d03
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/abs.rst
@@ -0,0 +1,18 @@
+``abs``
+=======
+
+The ``abs`` filter returns the absolute value.
+
+.. code-block:: jinja
+
+    {# number = -5 #}
+
+    {{ number|abs }}
+
+    {# outputs 5 #}
+
+.. note::
+
+    Internally, Twig uses the PHP `abs`_ function.
+
+.. _`abs`: http://php.net/abs
diff --git a/vendor/twig/twig/doc/filters/batch.rst b/vendor/twig/twig/doc/filters/batch.rst
new file mode 100644
index 000000000..f8b6fa9d4
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/batch.rst
@@ -0,0 +1,51 @@
+``batch``
+=========
+
+.. versionadded:: 1.12.3
+    The ``batch`` filter was added in Twig 1.12.3.
+
+The ``batch`` filter "batches" items by returning a list of lists with the
+given number of items. A second parameter can be provided and used to fill in
+missing items:
+
+.. code-block:: jinja
+
+    {% set items = ['a', 'b', 'c', 'd', 'e', 'f', 'g'] %}
+
+    <table>
+    {% for row in items|batch(3, 'No item') %}
+        <tr>
+            {% for column in row %}
+                <td>{{ column }}</td>
+            {% endfor %}
+        </tr>
+    {% endfor %}
+    </table>
+
+The above example will be rendered as:
+
+.. code-block:: jinja
+
+    <table>
+        <tr>
+            <td>a</td>
+            <td>b</td>
+            <td>c</td>
+        </tr>
+        <tr>
+            <td>d</td>
+            <td>e</td>
+            <td>f</td>
+        </tr>
+        <tr>
+            <td>g</td>
+            <td>No item</td>
+            <td>No item</td>
+        </tr>
+    </table>
+
+Arguments
+---------
+
+* ``size``: The size of the batch; fractional numbers will be rounded up
+* ``fill``: Used to fill in missing items
diff --git a/vendor/twig/twig/doc/filters/capitalize.rst b/vendor/twig/twig/doc/filters/capitalize.rst
new file mode 100644
index 000000000..10546a1f3
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/capitalize.rst
@@ -0,0 +1,11 @@
+``capitalize``
+==============
+
+The ``capitalize`` filter capitalizes a value. The first character will be
+uppercase, all others lowercase:
+
+.. code-block:: jinja
+
+    {{ 'my first car'|capitalize }}
+
+    {# outputs 'My first car' #}
diff --git a/vendor/twig/twig/doc/filters/convert_encoding.rst b/vendor/twig/twig/doc/filters/convert_encoding.rst
new file mode 100644
index 000000000..f4ebe5807
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/convert_encoding.rst
@@ -0,0 +1,28 @@
+``convert_encoding``
+====================
+
+.. versionadded:: 1.4
+    The ``convert_encoding`` filter was added in Twig 1.4.
+
+The ``convert_encoding`` filter converts a string from one encoding to
+another. The first argument is the expected output charset and the second one
+is the input charset:
+
+.. code-block:: jinja
+
+    {{ data|convert_encoding('UTF-8', 'iso-2022-jp') }}
+
+.. note::
+
+    This filter relies on the `iconv`_ or `mbstring`_ extension, so one of
+    them must be installed. In case both are installed, `mbstring`_ is used by
+    default (Twig before 1.8.1 uses `iconv`_ by default).
+
+Arguments
+---------
+
+* ``to``:   The output charset
+* ``from``: The input charset
+
+.. _`iconv`:    http://php.net/iconv
+.. _`mbstring`: http://php.net/mbstring
diff --git a/vendor/twig/twig/doc/filters/date.rst b/vendor/twig/twig/doc/filters/date.rst
new file mode 100644
index 000000000..c86d42baf
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/date.rst
@@ -0,0 +1,94 @@
+``date``
+========
+
+.. versionadded:: 1.1
+    The timezone support has been added in Twig 1.1.
+
+.. versionadded:: 1.5
+    The default date format support has been added in Twig 1.5.
+
+.. versionadded:: 1.6.1
+    The default timezone support has been added in Twig 1.6.1.
+
+.. versionadded:: 1.11.0
+    The introduction of the false value for the timezone was introduced in Twig 1.11.0
+
+The ``date`` filter formats a date to a given format:
+
+.. code-block:: jinja
+
+    {{ post.published_at|date("m/d/Y") }}
+
+The format specifier is the same as supported by `date`_,
+except when the filtered data is of type `DateInterval`_, when the format must conform to
+`DateInterval::format`_ instead.
+
+The ``date`` filter accepts strings (it must be in a format supported by the
+`strtotime`_ function), `DateTime`_ instances, or `DateInterval`_ instances. For
+instance, to display the current date, filter the word "now":
+
+.. code-block:: jinja
+
+    {{ "now"|date("m/d/Y") }}
+
+To escape words and characters in the date format use ``\\`` in front of each
+character:
+
+.. code-block:: jinja
+
+    {{ post.published_at|date("F jS \\a\\t g:ia") }}
+
+If the value passed to the ``date`` filter is ``null``, it will return the
+current date by default. If an empty string is desired instead of the current
+date, use a ternary operator:
+
+.. code-block:: jinja
+
+    {{ post.published_at is empty ? "" : post.published_at|date("m/d/Y") }}
+
+If no format is provided, Twig will use the default one: ``F j, Y H:i``. This
+default can be easily changed by calling the ``setDateFormat()`` method on the
+``core`` extension instance. The first argument is the default format for
+dates and the second one is the default format for date intervals:
+
+.. code-block:: php
+
+    $twig = new Twig_Environment($loader);
+    $twig->getExtension('core')->setDateFormat('d/m/Y', '%d days');
+
+Timezone
+--------
+
+By default, the date is displayed by applying the default timezone (the one
+specified in php.ini or declared in Twig -- see below), but you can override
+it by explicitly specifying a timezone:
+
+.. code-block:: jinja
+
+    {{ post.published_at|date("m/d/Y", "Europe/Paris") }}
+
+If the date is already a DateTime object, and if you want to keep its current
+timezone, pass ``false`` as the timezone value:
+
+.. code-block:: jinja
+
+    {{ post.published_at|date("m/d/Y", false) }}
+
+The default timezone can also be set globally by calling ``setTimezone()``:
+
+.. code-block:: php
+
+    $twig = new Twig_Environment($loader);
+    $twig->getExtension('core')->setTimezone('Europe/Paris');
+
+Arguments
+---------
+
+* ``format``:   The date format
+* ``timezone``: The date timezone
+
+.. _`strtotime`:            http://www.php.net/strtotime
+.. _`DateTime`:             http://www.php.net/DateTime
+.. _`DateInterval`:         http://www.php.net/DateInterval
+.. _`date`:                 http://www.php.net/date
+.. _`DateInterval::format`: http://www.php.net/DateInterval.format
diff --git a/vendor/twig/twig/doc/filters/date_modify.rst b/vendor/twig/twig/doc/filters/date_modify.rst
new file mode 100644
index 000000000..add40b56b
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/date_modify.rst
@@ -0,0 +1,23 @@
+``date_modify``
+===============
+
+.. versionadded:: 1.9.0
+    The date_modify filter has been added in Twig 1.9.0.
+
+The ``date_modify`` filter modifies a date with a given modifier string:
+
+.. code-block:: jinja
+
+    {{ post.published_at|date_modify("+1 day")|date("m/d/Y") }}
+
+The ``date_modify`` filter accepts strings (it must be in a format supported
+by the `strtotime`_ function) or `DateTime`_ instances. You can easily combine
+it with the :doc:`date<date>` filter for formatting.
+
+Arguments
+---------
+
+* ``modifier``: The modifier
+
+.. _`strtotime`: http://www.php.net/strtotime
+.. _`DateTime`:  http://www.php.net/DateTime
diff --git a/vendor/twig/twig/doc/filters/default.rst b/vendor/twig/twig/doc/filters/default.rst
new file mode 100644
index 000000000..641ac6e75
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/default.rst
@@ -0,0 +1,33 @@
+``default``
+===========
+
+The ``default`` filter returns the passed default value if the value is
+undefined or empty, otherwise the value of the variable:
+
+.. code-block:: jinja
+
+    {{ var|default('var is not defined') }}
+
+    {{ var.foo|default('foo item on var is not defined') }}
+
+    {{ var['foo']|default('foo item on var is not defined') }}
+
+    {{ ''|default('passed var is empty')  }}
+
+When using the ``default`` filter on an expression that uses variables in some
+method calls, be sure to use the ``default`` filter whenever a variable can be
+undefined:
+
+.. code-block:: jinja
+
+    {{ var.method(foo|default('foo'))|default('foo') }}
+
+.. note::
+
+    Read the documentation for the :doc:`defined<../tests/defined>` and
+    :doc:`empty<../tests/empty>` tests to learn more about their semantics.
+
+Arguments
+---------
+
+* ``default``: The default value
diff --git a/vendor/twig/twig/doc/filters/escape.rst b/vendor/twig/twig/doc/filters/escape.rst
new file mode 100644
index 000000000..fc9771acd
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/escape.rst
@@ -0,0 +1,116 @@
+``escape``
+==========
+
+.. versionadded:: 1.9.0
+    The ``css``, ``url``, and ``html_attr`` strategies were added in Twig
+    1.9.0.
+
+.. versionadded:: 1.14.0
+    The ability to define custom escapers was added in Twig 1.14.0.
+
+The ``escape`` filter escapes a string for safe insertion into the final
+output. It supports different escaping strategies depending on the template
+context.
+
+By default, it uses the HTML escaping strategy:
+
+.. code-block:: jinja
+
+    {{ user.username|escape }}
+
+For convenience, the ``e`` filter is defined as an alias:
+
+.. code-block:: jinja
+
+    {{ user.username|e }}
+
+The ``escape`` filter can also be used in other contexts than HTML thanks to
+an optional argument which defines the escaping strategy to use:
+
+.. code-block:: jinja
+
+    {{ user.username|e }}
+    {# is equivalent to #}
+    {{ user.username|e('html') }}
+
+And here is how to escape variables included in JavaScript code:
+
+.. code-block:: jinja
+
+    {{ user.username|escape('js') }}
+    {{ user.username|e('js') }}
+
+The ``escape`` filter supports the following escaping strategies:
+
+* ``html``: escapes a string for the **HTML body** context.
+
+* ``js``: escapes a string for the **JavaScript context**.
+
+* ``css``: escapes a string for the **CSS context**. CSS escaping can be
+  applied to any string being inserted into CSS and escapes everything except
+  alphanumerics.
+
+* ``url``: escapes a string for the **URI or parameter contexts**. This should
+  not be used to escape an entire URI; only a subcomponent being inserted.
+
+* ``html_attr``: escapes a string for the **HTML attribute** context.
+
+.. note::
+
+    Internally, ``escape`` uses the PHP native `htmlspecialchars`_ function
+    for the HTML escaping strategy.
+
+.. caution::
+
+    When using automatic escaping, Twig tries to not double-escape a variable
+    when the automatic escaping strategy is the same as the one applied by the
+    escape filter; but that does not work when using a variable as the
+    escaping strategy:
+
+    .. code-block:: jinja
+
+        {% set strategy = 'html' %}
+
+        {% autoescape 'html' %}
+            {{ var|escape('html') }}   {# won't be double-escaped #}
+            {{ var|escape(strategy) }} {# will be double-escaped #}
+        {% endautoescape %}
+
+    When using a variable as the escaping strategy, you should disable
+    automatic escaping:
+
+    .. code-block:: jinja
+
+        {% set strategy = 'html' %}
+
+        {% autoescape 'html' %}
+            {{ var|escape(strategy)|raw }} {# won't be double-escaped #}
+        {% endautoescape %}
+
+Custom Escapers
+---------------
+
+You can define custom escapers by calling the ``setEscaper()`` method on the
+``core`` extension instance. The first argument is the escaper name (to be
+used in the ``escape`` call) and the second one must be a valid PHP callable:
+
+.. code-block:: php
+
+    $twig = new Twig_Environment($loader);
+    $twig->getExtension('core')->setEscaper('csv', 'csv_escaper'));
+
+When called by Twig, the callable receives the Twig environment instance, the
+string to escape, and the charset.
+
+.. note::
+
+    Built-in escapers cannot be overridden mainly they should be considered as
+    the final implementation and also for better performance.
+
+Arguments
+---------
+
+* ``strategy``: The escaping strategy
+* ``charset``:  The string charset
+
+.. _`htmlspecialchars`: http://php.net/htmlspecialchars
diff --git a/vendor/twig/twig/doc/filters/first.rst b/vendor/twig/twig/doc/filters/first.rst
new file mode 100644
index 000000000..674c1f9ed
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/first.rst
@@ -0,0 +1,25 @@
+``first``
+=========
+
+.. versionadded:: 1.12.2
+    The ``first`` filter was added in Twig 1.12.2.
+
+The ``first`` filter returns the first "element" of a sequence, a mapping, or
+a string:
+
+.. code-block:: jinja
+
+    {{ [1, 2, 3, 4]|first }}
+    {# outputs 1 #}
+
+    {{ { a: 1, b: 2, c: 3, d: 4 }|first }}
+    {# outputs 1 #}
+
+    {{ '1234'|first }}
+    {# outputs 1 #}
+
+.. note::
+
+    It also works with objects implementing the `Traversable`_ interface.
+
+.. _`Traversable`: http://php.net/manual/en/class.traversable.php
diff --git a/vendor/twig/twig/doc/filters/format.rst b/vendor/twig/twig/doc/filters/format.rst
new file mode 100644
index 000000000..f8effd9a9
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/format.rst
@@ -0,0 +1,16 @@
+``format``
+==========
+
+The ``format`` filter formats a given string by replacing the placeholders
+(placeholders follows the `sprintf`_ notation):
+
+.. code-block:: jinja
+
+    {{ "I like %s and %s."|format(foo, "bar") }}
+
+    {# outputs I like foo and bar
+       if the foo parameter equals to the foo string. #}
+
+.. _`sprintf`: http://www.php.net/sprintf
+
+.. seealso:: :doc:`replace<replace>`
diff --git a/vendor/twig/twig/doc/filters/index.rst b/vendor/twig/twig/doc/filters/index.rst
new file mode 100644
index 000000000..8daa96118
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/index.rst
@@ -0,0 +1,37 @@
+Filters
+=======
+
+.. toctree::
+    :maxdepth: 1
+
+    abs
+    batch
+    capitalize
+    convert_encoding
+    date
+    date_modify
+    default
+    escape
+    first
+    format
+    join
+    json_encode
+    keys
+    last
+    length
+    lower
+    merge
+    nl2br
+    number_format
+    raw
+    replace
+    reverse
+    round
+    slice
+    sort
+    split
+    striptags
+    title
+    trim
+    upper
+    url_encode
diff --git a/vendor/twig/twig/doc/filters/join.rst b/vendor/twig/twig/doc/filters/join.rst
new file mode 100644
index 000000000..2fab94528
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/join.rst
@@ -0,0 +1,23 @@
+``join``
+========
+
+The ``join`` filter returns a string which is the concatenation of the items
+of a sequence:
+
+.. code-block:: jinja
+
+    {{ [1, 2, 3]|join }}
+    {# returns 123 #}
+
+The separator between elements is an empty string per default, but you can
+define it with the optional first parameter:
+
+.. code-block:: jinja
+
+    {{ [1, 2, 3]|join('|') }}
+    {# outputs 1|2|3 #}
+
+Arguments
+---------
+
+* ``glue``: The separator
diff --git a/vendor/twig/twig/doc/filters/json_encode.rst b/vendor/twig/twig/doc/filters/json_encode.rst
new file mode 100644
index 000000000..a39bb476e
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/json_encode.rst
@@ -0,0 +1,21 @@
+``json_encode``
+===============
+
+The ``json_encode`` filter returns the JSON representation of a value:
+
+.. code-block:: jinja
+
+    {{ data|json_encode() }}
+
+.. note::
+
+    Internally, Twig uses the PHP `json_encode`_ function.
+
+Arguments
+---------
+
+* ``options``: A bitmask of `json_encode options`_ (``{{
+  data|json_encode(constant('JSON_PRETTY_PRINT')) }}``)
+
+.. _`json_encode`: http://php.net/json_encode
+.. _`json_encode options`: http://www.php.net/manual/en/json.constants.php
diff --git a/vendor/twig/twig/doc/filters/keys.rst b/vendor/twig/twig/doc/filters/keys.rst
new file mode 100644
index 000000000..e4f090c6b
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/keys.rst
@@ -0,0 +1,11 @@
+``keys``
+========
+
+The ``keys`` filter returns the keys of an array. It is useful when you want to
+iterate over the keys of an array:
+
+.. code-block:: jinja
+
+    {% for key in array|keys %}
+        ...
+    {% endfor %}
diff --git a/vendor/twig/twig/doc/filters/last.rst b/vendor/twig/twig/doc/filters/last.rst
new file mode 100644
index 000000000..345b6573d
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/last.rst
@@ -0,0 +1,25 @@
+``last``
+========
+
+.. versionadded:: 1.12.2
+    The ``last`` filter was added in Twig 1.12.2.
+
+The ``last`` filter returns the last "element" of a sequence, a mapping, or
+a string:
+
+.. code-block:: jinja
+
+    {{ [1, 2, 3, 4]|last }}
+    {# outputs 4 #}
+
+    {{ { a: 1, b: 2, c: 3, d: 4 }|last }}
+    {# outputs 4 #}
+
+    {{ '1234'|last }}
+    {# outputs 4 #}
+
+.. note::
+
+    It also works with objects implementing the `Traversable`_ interface.
+
+.. _`Traversable`: http://php.net/manual/en/class.traversable.php
diff --git a/vendor/twig/twig/doc/filters/length.rst b/vendor/twig/twig/doc/filters/length.rst
new file mode 100644
index 000000000..1f783b3dd
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/length.rst
@@ -0,0 +1,11 @@
+``length``
+==========
+
+The ``length`` filter returns the number of items of a sequence or mapping, or
+the length of a string:
+
+.. code-block:: jinja
+
+    {% if users|length > 10 %}
+        ...
+    {% endif %}
diff --git a/vendor/twig/twig/doc/filters/lower.rst b/vendor/twig/twig/doc/filters/lower.rst
new file mode 100644
index 000000000..ef9faa90a
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/lower.rst
@@ -0,0 +1,10 @@
+``lower``
+=========
+
+The ``lower`` filter converts a value to lowercase:
+
+.. code-block:: jinja
+
+    {{ 'WELCOME'|lower }}
+
+    {# outputs 'welcome' #}
diff --git a/vendor/twig/twig/doc/filters/merge.rst b/vendor/twig/twig/doc/filters/merge.rst
new file mode 100644
index 000000000..88780dd6f
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/merge.rst
@@ -0,0 +1,48 @@
+``merge``
+=========
+
+The ``merge`` filter merges an array with another array:
+
+.. code-block:: jinja
+
+    {% set values = [1, 2] %}
+
+    {% set values = values|merge(['apple', 'orange']) %}
+
+    {# values now contains [1, 2, 'apple', 'orange'] #}
+
+New values are added at the end of the existing ones.
+
+The ``merge`` filter also works on hashes:
+
+.. code-block:: jinja
+
+    {% set items = { 'apple': 'fruit', 'orange': 'fruit', 'peugeot': 'unknown' } %}
+
+    {% set items = items|merge({ 'peugeot': 'car', 'renault': 'car' }) %}
+
+    {# items now contains { 'apple': 'fruit', 'orange': 'fruit', 'peugeot': 'car', 'renault': 'car' } #}
+
+For hashes, the merging process occurs on the keys: if the key does not
+already exist, it is added but if the key already exists, its value is
+overridden.
+
+.. tip::
+
+    If you want to ensure that some values are defined in an array (by given
+    default values), reverse the two elements in the call:
+
+    .. code-block:: jinja
+
+        {% set items = { 'apple': 'fruit', 'orange': 'fruit' } %}
+
+        {% set items = { 'apple': 'unknown' }|merge(items) %}
+
+        {# items now contains { 'apple': 'fruit', 'orange': 'fruit' } #}
+        
+.. note::
+
+    Internally, Twig uses the PHP `array_merge`_ function. It supports
+    Traversable objects by transforming those to arrays.
+
+.. _`array_merge`: http://php.net/array_merge
diff --git a/vendor/twig/twig/doc/filters/nl2br.rst b/vendor/twig/twig/doc/filters/nl2br.rst
new file mode 100644
index 000000000..5c923e143
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/nl2br.rst
@@ -0,0 +1,22 @@
+``nl2br``
+=========
+
+.. versionadded:: 1.5
+    The ``nl2br`` filter was added in Twig 1.5.
+
+The ``nl2br`` filter inserts HTML line breaks before all newlines in a string:
+
+.. code-block:: jinja
+
+    {{ "I like Twig.\nYou will like it too."|nl2br }}
+    {# outputs
+
+        I like Twig.<br />
+        You will like it too.
+
+    #}
+
+.. note::
+
+    The ``nl2br`` filter pre-escapes the input before applying the
+    transformation.
diff --git a/vendor/twig/twig/doc/filters/number_format.rst b/vendor/twig/twig/doc/filters/number_format.rst
new file mode 100644
index 000000000..3114e8451
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/number_format.rst
@@ -0,0 +1,45 @@
+``number_format``
+=================
+
+.. versionadded:: 1.5
+    The ``number_format`` filter was added in Twig 1.5
+
+The ``number_format`` filter formats numbers.  It is a wrapper around PHP's
+`number_format`_ function:
+
+.. code-block:: jinja
+
+    {{ 200.35|number_format }}
+
+You can control the number of decimal places, decimal point, and thousands
+separator using the additional arguments:
+
+.. code-block:: jinja
+
+    {{ 9800.333|number_format(2, '.', ',') }}
+
+If no formatting options are provided then Twig will use the default formatting
+options of:
+
+* 0 decimal places.
+* ``.`` as the decimal point.
+* ``,`` as the thousands separator.
+
+These defaults can be easily changed through the core extension:
+
+.. code-block:: php
+
+    $twig = new Twig_Environment($loader);
+    $twig->getExtension('core')->setNumberFormat(3, '.', ',');
+
+The defaults set for ``number_format`` can be over-ridden upon each call using the
+additional parameters.
+
+Arguments
+---------
+
+* ``decimal``:       The number of decimal points to display
+* ``decimal_point``: The character(s) to use for the decimal point
+* ``thousand_sep``:   The character(s) to use for the thousands separator
+
+.. _`number_format`: http://php.net/number_format
diff --git a/vendor/twig/twig/doc/filters/raw.rst b/vendor/twig/twig/doc/filters/raw.rst
new file mode 100644
index 000000000..e5e5b12ec
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/raw.rst
@@ -0,0 +1,36 @@
+``raw``
+=======
+
+The ``raw`` filter marks the value as being "safe", which means that in an
+environment with automatic escaping enabled this variable will not be escaped
+if ``raw`` is the last filter applied to it:
+
+.. code-block:: jinja
+
+    {% autoescape %}
+        {{ var|raw }} {# var won't be escaped #}
+    {% endautoescape %}
+
+.. note::
+
+    Be careful when using the ``raw`` filter inside expressions:
+
+    .. code-block:: jinja
+
+        {% autoescape %}
+            {% set hello = '<strong>Hello</strong>' %}
+            {% set hola = '<strong>Hola</strong>' %}
+
+            {{ false ? '<strong>Hola</strong>' : hello|raw }}
+            does not render the same as
+            {{ false ? hola : hello|raw }}
+            but renders the same as
+            {{ (false ? hola : hello)|raw }}
+        {% endautoescape %}
+
+    The first ternary statement is not escaped: ``hello`` is marked as being
+    safe and Twig does not escape static values (see
+    :doc:`escape<../tags/autoescape>`). In the second ternary statement, even
+    if ``hello`` is marked as safe, ``hola`` remains unsafe and so is the whole
+    expression. The third ternary statement is marked as safe and the result is
+    not escaped.
diff --git a/vendor/twig/twig/doc/filters/replace.rst b/vendor/twig/twig/doc/filters/replace.rst
new file mode 100644
index 000000000..1227957b9
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/replace.rst
@@ -0,0 +1,19 @@
+``replace``
+===========
+
+The ``replace`` filter formats a given string by replacing the placeholders
+(placeholders are free-form):
+
+.. code-block:: jinja
+
+    {{ "I like %this% and %that%."|replace({'%this%': foo, '%that%': "bar"}) }}
+
+    {# outputs I like foo and bar
+       if the foo parameter equals to the foo string. #}
+
+Arguments
+---------
+
+* ``replace_pairs``: The placeholder values
+
+.. seealso:: :doc:`format<format>`
diff --git a/vendor/twig/twig/doc/filters/reverse.rst b/vendor/twig/twig/doc/filters/reverse.rst
new file mode 100644
index 000000000..76fd2c1ab
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/reverse.rst
@@ -0,0 +1,47 @@
+``reverse``
+===========
+
+.. versionadded:: 1.6
+    Support for strings has been added in Twig 1.6.
+
+The ``reverse`` filter reverses a sequence, a mapping, or a string:
+
+.. code-block:: jinja
+
+    {% for user in users|reverse %}
+        ...
+    {% endfor %}
+
+    {{ '1234'|reverse }}
+
+    {# outputs 4321 #}
+
+.. tip::
+
+    For sequences and mappings, numeric keys are not preserved. To reverse
+    them as well, pass ``true`` as an argument to the ``reverse`` filter:
+
+    .. code-block:: jinja
+
+        {% for key, value in {1: "a", 2: "b", 3: "c"}|reverse %}
+            {{ key }}: {{ value }}
+        {%- endfor %}
+
+        {# output: 0: c    1: b    2: a #}
+
+        {% for key, value in {1: "a", 2: "b", 3: "c"}|reverse(true) %}
+            {{ key }}: {{ value }}
+        {%- endfor %}
+
+        {# output: 3: c    2: b    1: a #}
+
+.. note::
+
+    It also works with objects implementing the `Traversable`_ interface.
+
+Arguments
+---------
+
+* ``preserve_keys``: Preserve keys when reversing a mapping or a sequence.
+
+.. _`Traversable`: http://php.net/Traversable
diff --git a/vendor/twig/twig/doc/filters/round.rst b/vendor/twig/twig/doc/filters/round.rst
new file mode 100644
index 000000000..2521cf16a
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/round.rst
@@ -0,0 +1,37 @@
+``round``
+=========
+
+.. versionadded:: 1.15.0
+    The ``round`` filter was added in Twig 1.15.0.
+
+The ``round`` filter rounds a number to a given precision:
+
+.. code-block:: jinja
+
+    {{ 42.55|round }}
+    {# outputs 43 #}
+
+    {{ 42.55|round(1, 'floor') }}
+    {# outputs 42.5 #}
+
+The ``round`` filter takes two optional arguments; the first one specifies the
+precision (default is ``0``) and the second the rounding method (default is
+``common``):
+
+* ``common`` rounds either up or down (rounds the value up to precision decimal
+  places away from zero, when it is half way there -- making 1.5 into 2 and
+  -1.5 into -2);
+
+* ``ceil`` always rounds up;
+
+* ``floor`` always rounds down.
+
+.. note::
+
+    The ``//`` operator is equivalent to ``|round(0, 'floor')``.
+
+Arguments
+---------
+
+* ``precision``: The rounding precision
+* ``method``: The rounding method
diff --git a/vendor/twig/twig/doc/filters/slice.rst b/vendor/twig/twig/doc/filters/slice.rst
new file mode 100644
index 000000000..70bf139e6
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/slice.rst
@@ -0,0 +1,71 @@
+``slice``
+===========
+
+.. versionadded:: 1.6
+    The ``slice`` filter was added in Twig 1.6.
+
+The ``slice`` filter extracts a slice of a sequence, a mapping, or a string:
+
+.. code-block:: jinja
+
+    {% for i in [1, 2, 3, 4, 5]|slice(1, 2) %}
+        {# will iterate over 2 and 3 #}
+    {% endfor %}
+
+    {{ '12345'|slice(1, 2) }}
+
+    {# outputs 23 #}
+
+You can use any valid expression for both the start and the length:
+
+.. code-block:: jinja
+
+    {% for i in [1, 2, 3, 4, 5]|slice(start, length) %}
+        {# ... #}
+    {% endfor %}
+
+As syntactic sugar, you can also use the ``[]`` notation:
+
+.. code-block:: jinja
+
+    {% for i in [1, 2, 3, 4, 5][start:length] %}
+        {# ... #}
+    {% endfor %}
+
+    {{ '12345'[1:2] }} {# will display "23" #}
+
+    {# you can omit the first argument -- which is the same as 0 #}
+    {{ '12345'[:2] }} {# will display "12" #}
+
+    {# you can omit the last argument -- which will select everything till the end #}
+    {{ '12345'[2:] }} {# will display "345" #}
+
+The ``slice`` filter works as the `array_slice`_ PHP function for arrays and
+`mb_substr`_ for strings with a fallback to `substr`_.
+
+If the start is non-negative, the sequence will start at that start in the
+variable. If start is negative, the sequence will start that far from the end
+of the variable.
+
+If length is given and is positive, then the sequence will have up to that
+many elements in it. If the variable is shorter than the length, then only the
+available variable elements will be present. If length is given and is
+negative then the sequence will stop that many elements from the end of the
+variable. If it is omitted, then the sequence will have everything from offset
+up until the end of the variable.
+
+.. note::
+
+    It also works with objects implementing the `Traversable`_ interface.
+
+Arguments
+---------
+
+* ``start``:         The start of the slice
+* ``length``:        The size of the slice
+* ``preserve_keys``: Whether to preserve key or not (when the input is an array)
+
+.. _`Traversable`: http://php.net/manual/en/class.traversable.php
+.. _`array_slice`: http://php.net/array_slice
+.. _`mb_substr` :  http://php.net/mb-substr
+.. _`substr`:      http://php.net/substr
diff --git a/vendor/twig/twig/doc/filters/sort.rst b/vendor/twig/twig/doc/filters/sort.rst
new file mode 100644
index 000000000..350207f8e
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/sort.rst
@@ -0,0 +1,18 @@
+``sort``
+========
+
+The ``sort`` filter sorts an array:
+
+.. code-block:: jinja
+
+    {% for user in users|sort %}
+        ...
+    {% endfor %}
+
+.. note::
+
+    Internally, Twig uses the PHP `asort`_ function to maintain index
+    association. It supports Traversable objects by transforming
+    those to arrays.
+
+.. _`asort`: http://php.net/asort
diff --git a/vendor/twig/twig/doc/filters/split.rst b/vendor/twig/twig/doc/filters/split.rst
new file mode 100644
index 000000000..bbc6d798f
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/split.rst
@@ -0,0 +1,53 @@
+``split``
+=========
+
+.. versionadded:: 1.10.3
+    The ``split`` filter was added in Twig 1.10.3.
+
+The ``split`` filter splits a string by the given delimiter and returns a list
+of strings:
+
+.. code-block:: jinja
+
+    {% set foo = "one,two,three"|split(',') %}
+    {# foo contains ['one', 'two', 'three'] #}
+
+You can also pass a ``limit`` argument:
+
+ * If ``limit`` is positive, the returned array will contain a maximum of
+   limit elements with the last element containing the rest of string;
+
+ * If ``limit`` is negative, all components except the last -limit are
+   returned;
+
+ * If ``limit`` is zero, then this is treated as 1.
+
+.. code-block:: jinja
+
+    {% set foo = "one,two,three,four,five"|split(',', 3) %}
+    {# foo contains ['one', 'two', 'three,four,five'] #}
+
+If the ``delimiter`` is an empty string, then value will be split by equal
+chunks. Length is set by the ``limit`` argument (one character by default).
+
+.. code-block:: jinja
+
+    {% set foo = "123"|split('') %}
+    {# foo contains ['1', '2', '3'] #}
+
+    {% set bar = "aabbcc"|split('', 2) %}
+    {# bar contains ['aa', 'bb', 'cc'] #}
+
+.. note::
+
+    Internally, Twig uses the PHP `explode`_ or `str_split`_ (if delimiter is
+    empty) functions for string splitting.
+
+Arguments
+---------
+
+* ``delimiter``: The delimiter
+* ``limit``:     The limit argument
+
+.. _`explode`:   http://php.net/explode
+.. _`str_split`: http://php.net/str_split
diff --git a/vendor/twig/twig/doc/filters/striptags.rst b/vendor/twig/twig/doc/filters/striptags.rst
new file mode 100644
index 000000000..72c6f252f
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/striptags.rst
@@ -0,0 +1,15 @@
+``striptags``
+=============
+
+The ``striptags`` filter strips SGML/XML tags and replace adjacent whitespace
+by one space:
+
+.. code-block:: jinja
+
+    {{ some_html|striptags }}
+
+.. note::
+
+    Internally, Twig uses the PHP `strip_tags`_ function.
+
+.. _`strip_tags`: http://php.net/strip_tags
diff --git a/vendor/twig/twig/doc/filters/title.rst b/vendor/twig/twig/doc/filters/title.rst
new file mode 100644
index 000000000..c5a318e85
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/title.rst
@@ -0,0 +1,11 @@
+``title``
+=========
+
+The ``title`` filter returns a titlecased version of the value. Words will
+start with uppercase letters, all remaining characters are lowercase:
+
+.. code-block:: jinja
+
+    {{ 'my first car'|title }}
+
+    {# outputs 'My First Car' #}
diff --git a/vendor/twig/twig/doc/filters/trim.rst b/vendor/twig/twig/doc/filters/trim.rst
new file mode 100644
index 000000000..4ddb2083b
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/trim.rst
@@ -0,0 +1,29 @@
+``trim``
+========
+
+.. versionadded:: 1.6.2
+    The ``trim`` filter was added in Twig 1.6.2.
+
+The ``trim`` filter strips whitespace (or other characters) from the beginning
+and end of a string:
+
+.. code-block:: jinja
+
+    {{ '  I like Twig.  '|trim }}
+
+    {# outputs 'I like Twig.' #}
+
+    {{ '  I like Twig.'|trim('.') }}
+
+    {# outputs '  I like Twig' #}
+
+.. note::
+
+    Internally, Twig uses the PHP `trim`_ function.
+
+Arguments
+---------
+
+* ``character_mask``: The characters to strip
+
+.. _`trim`: http://php.net/trim
diff --git a/vendor/twig/twig/doc/filters/upper.rst b/vendor/twig/twig/doc/filters/upper.rst
new file mode 100644
index 000000000..561cebe33
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/upper.rst
@@ -0,0 +1,10 @@
+``upper``
+=========
+
+The ``upper`` filter converts a value to uppercase:
+
+.. code-block:: jinja
+
+    {{ 'welcome'|upper }}
+
+    {# outputs 'WELCOME' #}
diff --git a/vendor/twig/twig/doc/filters/url_encode.rst b/vendor/twig/twig/doc/filters/url_encode.rst
new file mode 100644
index 000000000..5944e59cd
--- /dev/null
+++ b/vendor/twig/twig/doc/filters/url_encode.rst
@@ -0,0 +1,34 @@
+``url_encode``
+==============
+
+.. versionadded:: 1.12.3
+    Support for encoding an array as query string was added in Twig 1.12.3.
+
+.. versionadded:: 1.16.0
+    The ``raw`` argument was removed in Twig 1.16.0. Twig now always encodes
+    according to RFC 3986.
+
+The ``url_encode`` filter percent encodes a given string as URL segment
+or an array as query string:
+
+.. code-block:: jinja
+
+    {{ "path-seg*ment"|url_encode }}
+    {# outputs "path-seg%2Ament" #}
+
+    {{ "string with spaces"|url_encode }}
+    {# outputs "string%20with%20spaces" #}
+
+    {{ {'param': 'value', 'foo': 'bar'}|url_encode }}
+    {# outputs "param=value&foo=bar" #}
+
+.. note::
+
+    Internally, Twig uses the PHP `urlencode`_ (or `rawurlencode`_ if you pass
+    ``true`` as the first parameter) or the `http_build_query`_ function. Note
+    that as of Twig 1.16.0, ``urlencode`` **always** uses ``rawurlencode`` (the
+    ``raw`` argument was removed.)
+
+.. _`urlencode`:        http://php.net/urlencode
+.. _`rawurlencode`:     http://php.net/rawurlencode
+.. _`http_build_query`: http://php.net/http_build_query
diff --git a/vendor/twig/twig/doc/functions/attribute.rst b/vendor/twig/twig/doc/functions/attribute.rst
new file mode 100644
index 000000000..ceba96b05
--- /dev/null
+++ b/vendor/twig/twig/doc/functions/attribute.rst
@@ -0,0 +1,26 @@
+``attribute``
+=============
+
+.. versionadded:: 1.2
+    The ``attribute`` function was added in Twig 1.2.
+
+The ``attribute`` function can be used to access a "dynamic" attribute of a
+variable:
+
+.. code-block:: jinja
+
+    {{ attribute(object, method) }}
+    {{ attribute(object, method, arguments) }}
+    {{ attribute(array, item) }}
+
+In addition, the ``defined`` test can check for the existence of a dynamic
+attribute:
+
+.. code-block:: jinja
+
+    {{ attribute(object, method) is defined ? 'Method exists' : 'Method does not exist' }}
+
+.. note::
+
+    The resolution algorithm is the same as the one used for the ``.``
+    notation, except that the item can be any valid expression.
diff --git a/vendor/twig/twig/doc/functions/block.rst b/vendor/twig/twig/doc/functions/block.rst
new file mode 100644
index 000000000..fd571efbc
--- /dev/null
+++ b/vendor/twig/twig/doc/functions/block.rst
@@ -0,0 +1,15 @@
+``block``
+=========
+
+When a template uses inheritance and if you want to print a block multiple
+times, use the ``block`` function:
+
+.. code-block:: jinja
+
+    <title>{% block title %}{% endblock %}</title>
+
+    <h1>{{ block('title') }}</h1>
+
+    {% block body %}{% endblock %}
+
+.. seealso:: :doc:`extends<../tags/extends>`, :doc:`parent<../functions/parent>`
diff --git a/vendor/twig/twig/doc/functions/constant.rst b/vendor/twig/twig/doc/functions/constant.rst
new file mode 100644
index 000000000..bea0e9fc0
--- /dev/null
+++ b/vendor/twig/twig/doc/functions/constant.rst
@@ -0,0 +1,18 @@
+``constant``
+============
+
+.. versionadded: 1.12.1
+    constant now accepts object instances as the second argument.
+
+``constant`` returns the constant value for a given string:
+
+.. code-block:: jinja
+
+    {{ some_date|date(constant('DATE_W3C')) }}
+    {{ constant('Namespace\\Classname::CONSTANT_NAME') }}
+
+As of 1.12.1 you can read constants from object instances as well:
+
+.. code-block:: jinja
+
+    {{ constant('RSS', date) }}
diff --git a/vendor/twig/twig/doc/functions/cycle.rst b/vendor/twig/twig/doc/functions/cycle.rst
new file mode 100644
index 000000000..e34349323
--- /dev/null
+++ b/vendor/twig/twig/doc/functions/cycle.rst
@@ -0,0 +1,28 @@
+``cycle``
+=========
+
+The ``cycle`` function cycles on an array of values:
+
+.. code-block:: jinja
+
+    {% set start_year = date() | date('Y') %}
+    {% set end_year = start_year + 5 %}
+
+    {% for year in start_year..end_year %}
+        {{ cycle(['odd', 'even'], loop.index0) }}
+    {% endfor %}
+
+The array can contain any number of values:
+
+.. code-block:: jinja
+
+    {% set fruits = ['apple', 'orange', 'citrus'] %}
+
+    {% for i in 0..10 %}
+        {{ cycle(fruits, i) }}
+    {% endfor %}
+
+Arguments
+---------
+
+* ``position``: The cycle position
diff --git a/vendor/twig/twig/doc/functions/date.rst b/vendor/twig/twig/doc/functions/date.rst
new file mode 100644
index 000000000..714e08c47
--- /dev/null
+++ b/vendor/twig/twig/doc/functions/date.rst
@@ -0,0 +1,52 @@
+``date``
+========
+
+.. versionadded:: 1.6
+    The date function has been added in Twig 1.6.
+
+.. versionadded:: 1.6.1
+    The default timezone support has been added in Twig 1.6.1.
+
+Converts an argument to a date to allow date comparison:
+
+.. code-block:: jinja
+
+    {% if date(user.created_at) < date('-2days') %}
+        {# do something #}
+    {% endif %}
+
+The argument must be in one of PHP’s supported `date and time formats`_.
+
+You can pass a timezone as the second argument:
+
+.. code-block:: jinja
+
+    {% if date(user.created_at) < date('-2days', 'Europe/Paris') %}
+        {# do something #}
+    {% endif %}
+
+If no argument is passed, the function returns the current date:
+
+.. code-block:: jinja
+
+    {% if date(user.created_at) < date() %}
+        {# always! #}
+    {% endif %}
+
+.. note::
+
+    You can set the default timezone globally by calling ``setTimezone()`` on
+    the ``core`` extension instance:
+
+    .. code-block:: php
+
+        $twig = new Twig_Environment($loader);
+        $twig->getExtension('core')->setTimezone('Europe/Paris');
+
+Arguments
+---------
+
+* ``date``:     The date
+* ``timezone``: The timezone
+
+.. _`date and time formats`: http://php.net/manual/en/datetime.formats.php
diff --git a/vendor/twig/twig/doc/functions/dump.rst b/vendor/twig/twig/doc/functions/dump.rst
new file mode 100644
index 000000000..a231f089e
--- /dev/null
+++ b/vendor/twig/twig/doc/functions/dump.rst
@@ -0,0 +1,69 @@
+``dump``
+========
+
+.. versionadded:: 1.5
+    The ``dump`` function was added in Twig 1.5.
+
+The ``dump`` function dumps information about a template variable. This is
+mostly useful to debug a template that does not behave as expected by
+introspecting its variables:
+
+.. code-block:: jinja
+
+    {{ dump(user) }}
+
+.. note::
+
+    The ``dump`` function is not available by default. You must add the
+    ``Twig_Extension_Debug`` extension explicitly when creating your Twig
+    environment::
+
+        $twig = new Twig_Environment($loader, array(
+            'debug' => true,
+            // ...
+        ));
+        $twig->addExtension(new Twig_Extension_Debug());
+
+    Even when enabled, the ``dump`` function won't display anything if the
+    ``debug`` option on the environment is not enabled (to avoid leaking debug
+    information on a production server).
+
+In an HTML context, wrap the output with a ``pre`` tag to make it easier to
+read:
+
+.. code-block:: jinja
+
+    <pre>
+        {{ dump(user) }}
+    </pre>
+
+.. tip::
+
+    Using a ``pre`` tag is not needed when `XDebug`_ is enabled and
+    ``html_errors`` is ``on``; as a bonus, the output is also nicer with
+    XDebug enabled.
+
+You can debug several variables by passing them as additional arguments:
+
+.. code-block:: jinja
+
+    {{ dump(user, categories) }}
+
+If you don't pass any value, all variables from the current context are
+dumped:
+
+.. code-block:: jinja
+
+    {{ dump() }}
+
+.. note::
+
+    Internally, Twig uses the PHP `var_dump`_ function.
+
+Arguments
+---------
+
+* ``context``: The context to dump
+
+.. _`XDebug`:   http://xdebug.org/docs/display
+.. _`var_dump`: http://php.net/var_dump
diff --git a/vendor/twig/twig/doc/functions/include.rst b/vendor/twig/twig/doc/functions/include.rst
new file mode 100644
index 000000000..33bd56d11
--- /dev/null
+++ b/vendor/twig/twig/doc/functions/include.rst
@@ -0,0 +1,80 @@
+``include``
+===========
+
+.. versionadded:: 1.12
+    The ``include`` function was added in Twig 1.12.
+
+The ``include`` function returns the rendered content of a template:
+
+.. code-block:: jinja
+
+    {{ include('template.html') }}
+    {{ include(some_var) }}
+
+Included templates have access to the variables of the active context.
+
+If you are using the filesystem loader, the templates are looked for in the
+paths defined by it.
+
+The context is passed by default to the template but you can also pass
+additional variables:
+
+.. code-block:: jinja
+
+    {# template.html will have access to the variables from the current context and the additional ones provided #}
+    {{ include('template.html', {foo: 'bar'}) }}
+
+You can disable access to the context by setting ``with_context`` to
+``false``:
+
+.. code-block:: jinja
+
+    {# only the foo variable will be accessible #}
+    {{ include('template.html', {foo: 'bar'}, with_context = false) }}
+
+.. code-block:: jinja
+
+    {# no variables will be accessible #}
+    {{ include('template.html', with_context = false) }}
+
+And if the expression evaluates to a ``Twig_Template`` object, Twig will use it
+directly::
+
+    // {{ include(template) }}
+
+    $template = $twig->loadTemplate('some_template.twig');
+
+    $twig->loadTemplate('template.twig')->display(array('template' => $template));
+
+When you set the ``ignore_missing`` flag, Twig will return an empty string if
+the template does not exist:
+
+.. code-block:: jinja
+
+    {{ include('sidebar.html', ignore_missing = true) }}
+
+You can also provide a list of templates that are checked for existence before
+inclusion. The first template that exists will be rendered:
+
+.. code-block:: jinja
+
+    {{ include(['page_detailed.html', 'page.html']) }}
+
+If ``ignore_missing`` is set, it will fall back to rendering nothing if none
+of the templates exist, otherwise it will throw an exception.
+
+When including a template created by an end user, you should consider
+sandboxing it:
+
+.. code-block:: jinja
+
+    {{ include('page.html', sandboxed = true) }}
+
+Arguments
+---------
+
+* ``template``:       The template to render
+* ``variables``:      The variables to pass to the template
+* ``with_context``:   Whether to pass the current context variables or not
+* ``ignore_missing``: Whether to ignore missing templates or not
+* ``sandboxed``:      Whether to sandbox the template or not
diff --git a/vendor/twig/twig/doc/functions/index.rst b/vendor/twig/twig/doc/functions/index.rst
new file mode 100644
index 000000000..07214a76c
--- /dev/null
+++ b/vendor/twig/twig/doc/functions/index.rst
@@ -0,0 +1,20 @@
+Functions
+=========
+
+.. toctree::
+    :maxdepth: 1
+
+    attribute
+    block
+    constant
+    cycle
+    date
+    dump
+    include
+    max
+    min
+    parent
+    random
+    range
+    source
+    template_from_string
diff --git a/vendor/twig/twig/doc/functions/max.rst b/vendor/twig/twig/doc/functions/max.rst
new file mode 100644
index 000000000..6f3cfc535
--- /dev/null
+++ b/vendor/twig/twig/doc/functions/max.rst
@@ -0,0 +1,20 @@
+``max``
+=======
+
+.. versionadded:: 1.15
+    The ``max`` function was added in Twig 1.15.
+
+``max`` returns the biggest value of a sequence or a set of values:
+
+.. code-block:: jinja
+
+    {{ max(1, 3, 2) }}
+    {{ max([1, 3, 2]) }}
+
+When called with a mapping, max ignores keys and only compares values:
+
+.. code-block:: jinja
+
+    {{ max({2: "e", 1: "a", 3: "b", 5: "d", 4: "c"}) }}
+    {# returns "e" #}
+
diff --git a/vendor/twig/twig/doc/functions/min.rst b/vendor/twig/twig/doc/functions/min.rst
new file mode 100644
index 000000000..7b6a65e10
--- /dev/null
+++ b/vendor/twig/twig/doc/functions/min.rst
@@ -0,0 +1,20 @@
+``min``
+=======
+
+.. versionadded:: 1.15
+    The ``min`` function was added in Twig 1.15.
+
+``min`` returns the lowest value of a sequence or a set of values:
+
+.. code-block:: jinja
+
+    {{ min(1, 3, 2) }}
+    {{ min([1, 3, 2]) }}
+
+When called with a mapping, min ignores keys and only compares values:
+
+.. code-block:: jinja
+
+    {{ min({2: "e", 3: "a", 1: "b", 5: "d", 4: "c"}) }}
+    {# returns "a" #}
+
diff --git a/vendor/twig/twig/doc/functions/parent.rst b/vendor/twig/twig/doc/functions/parent.rst
new file mode 100644
index 000000000..f5bd20010
--- /dev/null
+++ b/vendor/twig/twig/doc/functions/parent.rst
@@ -0,0 +1,20 @@
+``parent``
+==========
+
+When a template uses inheritance, it's possible to render the contents of the
+parent block when overriding a block by using the ``parent`` function:
+
+.. code-block:: jinja
+
+    {% extends "base.html" %}
+
+    {% block sidebar %}
+        <h3>Table Of Contents</h3>
+        ...
+        {{ parent() }}
+    {% endblock %}
+
+The ``parent()`` call will return the content of the ``sidebar`` block as
+defined in the ``base.html`` template.
+
+.. seealso:: :doc:`extends<../tags/extends>`, :doc:`block<../functions/block>`, :doc:`block<../tags/block>`
diff --git a/vendor/twig/twig/doc/functions/random.rst b/vendor/twig/twig/doc/functions/random.rst
new file mode 100644
index 000000000..168e74f8f
--- /dev/null
+++ b/vendor/twig/twig/doc/functions/random.rst
@@ -0,0 +1,29 @@
+``random``
+==========
+
+.. versionadded:: 1.5
+    The ``random`` function was added in Twig 1.5.
+
+.. versionadded:: 1.6
+    String and integer handling was added in Twig 1.6.
+
+The ``random`` function returns a random value depending on the supplied
+parameter type:
+
+* a random item from a sequence;
+* a random character from a string;
+* a random integer between 0 and the integer parameter (inclusive).
+
+.. code-block:: jinja
+
+    {{ random(['apple', 'orange', 'citrus']) }} {# example output: orange #}
+    {{ random('ABC') }}                         {# example output: C #}
+    {{ random() }}                              {# example output: 15386094 (works as the native PHP mt_rand function) #}
+    {{ random(5) }}                             {# example output: 3 #}
+
+Arguments
+---------
+
+* ``values``: The values
+
+.. _`mt_rand`: http://php.net/mt_rand
diff --git a/vendor/twig/twig/doc/functions/range.rst b/vendor/twig/twig/doc/functions/range.rst
new file mode 100644
index 000000000..b7cd01116
--- /dev/null
+++ b/vendor/twig/twig/doc/functions/range.rst
@@ -0,0 +1,45 @@
+``range``
+=========
+
+Returns a list containing an arithmetic progression of integers:
+
+.. code-block:: jinja
+
+    {% for i in range(0, 3) %}
+        {{ i }},
+    {% endfor %}
+
+    {# outputs 0, 1, 2, 3, #}
+
+When step is given (as the third parameter), it specifies the increment (or
+decrement):
+
+.. code-block:: jinja
+
+    {% for i in range(0, 6, 2) %}
+        {{ i }},
+    {% endfor %}
+
+    {# outputs 0, 2, 4, 6, #}
+
+The Twig built-in ``..`` operator is just syntactic sugar for the ``range``
+function (with a step of 1):
+
+.. code-block:: jinja
+
+    {% for i in 0..3 %}
+        {{ i }},
+    {% endfor %}
+
+.. tip::
+
+    The ``range`` function works as the native PHP `range`_ function.
+
+Arguments
+---------
+
+* ``low``:  The first value of the sequence.
+* ``high``: The highest possible value of the sequence.
+* ``step``: The increment between elements of the sequence.
+
+.. _`range`: http://php.net/range
diff --git a/vendor/twig/twig/doc/functions/source.rst b/vendor/twig/twig/doc/functions/source.rst
new file mode 100644
index 000000000..3c921b1cf
--- /dev/null
+++ b/vendor/twig/twig/doc/functions/source.rst
@@ -0,0 +1,32 @@
+``source``
+==========
+
+.. versionadded:: 1.15
+    The ``source`` function was added in Twig 1.15.
+
+.. versionadded:: 1.18.3
+    The ``ignore_missing`` flag was added in Twig 1.18.3.
+
+The ``source`` function returns the content of a template without rendering it:
+
+.. code-block:: jinja
+
+    {{ source('template.html') }}
+    {{ source(some_var) }}
+
+When you set the ``ignore_missing`` flag, Twig will return an empty string if
+the template does not exist:
+
+.. code-block:: jinja
+
+    {{ source('template.html', ignore_missing = true) }}
+
+The function uses the same template loaders as the ones used to include
+templates. So, if you are using the filesystem loader, the templates are looked
+for in the paths defined by it.
+
+Arguments
+---------
+
+* ``name``: The name of the template to read
+* ``ignore_missing``: Whether to ignore missing templates or not
diff --git a/vendor/twig/twig/doc/functions/template_from_string.rst b/vendor/twig/twig/doc/functions/template_from_string.rst
new file mode 100644
index 000000000..ce6a60dc0
--- /dev/null
+++ b/vendor/twig/twig/doc/functions/template_from_string.rst
@@ -0,0 +1,32 @@
+``template_from_string``
+========================
+
+.. versionadded:: 1.11
+    The ``template_from_string`` function was added in Twig 1.11.
+
+The ``template_from_string`` function loads a template from a string:
+
+.. code-block:: jinja
+
+    {{ include(template_from_string("Hello {{ name }}")) }}
+    {{ include(template_from_string(page.template)) }}
+
+.. note::
+
+    The ``template_from_string`` function is not available by default. You
+    must add the ``Twig_Extension_StringLoader`` extension explicitly when
+    creating your Twig environment::
+
+        $twig = new Twig_Environment(...);
+        $twig->addExtension(new Twig_Extension_StringLoader());
+
+.. note::
+
+    Even if you will probably always use the ``template_from_string`` function
+    with the ``include`` function, you can use it with any tag or function that
+    takes a template as an argument (like the ``embed`` or ``extends`` tags).
+
+Arguments
+---------
+
+* ``template``: The template
diff --git a/vendor/twig/twig/doc/index.rst b/vendor/twig/twig/doc/index.rst
new file mode 100644
index 000000000..358bd738e
--- /dev/null
+++ b/vendor/twig/twig/doc/index.rst
@@ -0,0 +1,19 @@
+Twig
+====
+
+.. toctree::
+    :maxdepth: 2
+
+    intro
+    installation
+    templates
+    api
+    advanced
+    internals
+    deprecated
+    recipes
+    coding_standards
+    tags/index
+    filters/index
+    functions/index
+    tests/index
diff --git a/vendor/twig/twig/doc/installation.rst b/vendor/twig/twig/doc/installation.rst
new file mode 100644
index 000000000..afdcf1659
--- /dev/null
+++ b/vendor/twig/twig/doc/installation.rst
@@ -0,0 +1,116 @@
+Installation
+============
+
+You have multiple ways to install Twig.
+
+Installing the Twig PHP package
+-------------------------------
+
+Installing via Composer (recommended)
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Install `Composer`_ and run the following command to get the latest version:
+
+.. code-block:: bash
+
+    composer require twig/twig:~1.0
+
+Installing from the tarball release
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+1. Download the most recent tarball from the `download page`_
+2. Verify the integrity of the tarball http://fabien.potencier.org/article/73/signing-project-releases
+3. Unpack the tarball
+4. Move the files somewhere in your project
+
+Installing the development version
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. code-block:: bash
+
+    git clone git://github.com/twigphp/Twig.git
+
+Installing the PEAR package
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. note::
+
+    Using PEAR for installing Twig is deprecated and Twig 1.15.1 was the last
+    version published on the PEAR channel; use Composer instead.
+
+.. code-block:: bash
+
+    pear channel-discover pear.twig-project.org
+    pear install twig/Twig
+
+Installing the C extension
+--------------------------
+
+.. versionadded:: 1.4
+    The C extension was added in Twig 1.4.
+
+.. note::
+
+    The C extension is **optional** but it brings some nice performance
+    improvements. Note that the extension is not a replacement for the PHP
+    code; it only implements a small part of the PHP code to improve the
+    performance at runtime; you must still install the regular PHP code.
+
+Twig comes with a C extension that enhances the performance of the Twig
+runtime engine; install it like any other PHP extensions:
+
+.. code-block:: bash
+
+    cd ext/twig
+    phpize
+    ./configure
+    make
+    make install
+
+.. note::
+
+    You can also install the C extension via PEAR (note that this method is
+    deprecated and newer versions of Twig are not available on the PEAR
+    channel):
+
+    .. code-block:: bash
+
+        pear channel-discover pear.twig-project.org
+        pear install twig/CTwig
+
+For Windows:
+
+1. Setup the build environment following the `PHP documentation`_
+2. Put Twig's C extension source code into ``C:\php-sdk\phpdev\vcXX\x86\php-source-directory\ext\twig``
+3. Use the ``configure --disable-all --enable-cli --enable-twig=shared`` command instead of step 14
+4. ``nmake``
+5. Copy the ``C:\php-sdk\phpdev\vcXX\x86\php-source-directory\Release_TS\php_twig.dll`` file to your PHP setup.
+
+.. tip::
+
+    For Windows ZendServer, ZTS is not enabled as mentioned in `Zend Server
+    FAQ`_.
+
+    You have to use ``configure --disable-all --disable-zts --enable-cli
+    --enable-twig=shared`` to be able to build the twig C extension for
+    ZendServer.
+
+    The built DLL will be available in
+    ``C:\\php-sdk\\phpdev\\vcXX\\x86\\php-source-directory\\Release``
+
+Finally, enable the extension in your ``php.ini`` configuration file:
+
+.. code-block:: ini
+
+    extension=twig.so #For Unix systems
+    extension=php_twig.dll #For Windows systems
+
+And from now on, Twig will automatically compile your templates to take
+advantage of the C extension. Note that this extension does not replace the
+PHP code but only provides an optimized version of the
+``Twig_Template::getAttribute()`` method.
+
+.. _`download page`:     https://github.com/twigphp/Twig/tags
+.. _`Composer`:          https://getcomposer.org/download/
+.. _`PHP documentation`: https://wiki.php.net/internals/windows/stepbystepbuild
+.. _`Zend Server FAQ`:   http://www.zend.com/en/products/server/faq#faqD6
diff --git a/vendor/twig/twig/doc/internals.rst b/vendor/twig/twig/doc/internals.rst
new file mode 100644
index 000000000..ef1174dd9
--- /dev/null
+++ b/vendor/twig/twig/doc/internals.rst
@@ -0,0 +1,138 @@
+Twig Internals
+==============
+
+Twig is very extensible and you can easily hack it. Keep in mind that you
+should probably try to create an extension before hacking the core, as most
+features and enhancements can be handled with extensions. This chapter is also
+useful for people who want to understand how Twig works under the hood.
+
+How does Twig work?
+-------------------
+
+The rendering of a Twig template can be summarized into four key steps:
+
+* **Load** the template: If the template is already compiled, load it and go
+  to the *evaluation* step, otherwise:
+
+  * First, the **lexer** tokenizes the template source code into small pieces
+    for easier processing;
+  * Then, the **parser** converts the token stream into a meaningful tree
+    of nodes (the Abstract Syntax Tree);
+  * Eventually, the *compiler* transforms the AST into PHP code.
+
+* **Evaluate** the template: It basically means calling the ``display()``
+  method of the compiled template and passing it the context.
+
+The Lexer
+---------
+
+The lexer tokenizes a template source code into a token stream (each token is
+an instance of ``Twig_Token``, and the stream is an instance of
+``Twig_TokenStream``). The default lexer recognizes 13 different token types:
+
+* ``Twig_Token::BLOCK_START_TYPE``, ``Twig_Token::BLOCK_END_TYPE``: Delimiters for blocks (``{% %}``)
+* ``Twig_Token::VAR_START_TYPE``, ``Twig_Token::VAR_END_TYPE``: Delimiters for variables (``{{ }}``)
+* ``Twig_Token::TEXT_TYPE``: A text outside an expression;
+* ``Twig_Token::NAME_TYPE``: A name in an expression;
+* ``Twig_Token::NUMBER_TYPE``: A number in an expression;
+* ``Twig_Token::STRING_TYPE``: A string in an expression;
+* ``Twig_Token::OPERATOR_TYPE``: An operator;
+* ``Twig_Token::PUNCTUATION_TYPE``: A punctuation sign;
+* ``Twig_Token::INTERPOLATION_START_TYPE``, ``Twig_Token::INTERPOLATION_END_TYPE`` (as of Twig 1.5): Delimiters for string interpolation;
+* ``Twig_Token::EOF_TYPE``: Ends of template.
+
+You can manually convert a source code into a token stream by calling the
+``tokenize()`` method of an environment::
+
+    $stream = $twig->tokenize($source, $identifier);
+
+As the stream has a ``__toString()`` method, you can have a textual
+representation of it by echoing the object::
+
+    echo $stream."\n";
+
+Here is the output for the ``Hello {{ name }}`` template:
+
+.. code-block:: text
+
+    TEXT_TYPE(Hello )
+    VAR_START_TYPE()
+    NAME_TYPE(name)
+    VAR_END_TYPE()
+    EOF_TYPE()
+
+.. note::
+
+    The default lexer (``Twig_Lexer``) can be changed by calling
+    the ``setLexer()`` method::
+
+        $twig->setLexer($lexer);
+
+The Parser
+----------
+
+The parser converts the token stream into an AST (Abstract Syntax Tree), or a
+node tree (an instance of ``Twig_Node_Module``). The core extension defines
+the basic nodes like: ``for``, ``if``, ... and the expression nodes.
+
+You can manually convert a token stream into a node tree by calling the
+``parse()`` method of an environment::
+
+    $nodes = $twig->parse($stream);
+
+Echoing the node object gives you a nice representation of the tree::
+
+    echo $nodes."\n";
+
+Here is the output for the ``Hello {{ name }}`` template:
+
+.. code-block:: text
+
+    Twig_Node_Module(
+      Twig_Node_Text(Hello )
+      Twig_Node_Print(
+        Twig_Node_Expression_Name(name)
+      )
+    )
+
+.. note::
+
+    The default parser (``Twig_TokenParser``) can be changed by calling the
+    ``setParser()`` method::
+
+        $twig->setParser($parser);
+
+The Compiler
+------------
+
+The last step is done by the compiler. It takes a node tree as an input and
+generates PHP code usable for runtime execution of the template.
+
+You can manually compile a node tree to PHP code with the ``compile()`` method
+of an environment::
+
+    $php = $twig->compile($nodes);
+
+The generated template for a ``Hello {{ name }}`` template reads as follows
+(the actual output can differ depending on the version of Twig you are
+using)::
+
+    /* Hello {{ name }} */
+    class __TwigTemplate_1121b6f109fe93ebe8c6e22e3712bceb extends Twig_Template
+    {
+        protected function doDisplay(array $context, array $blocks = array())
+        {
+            // line 1
+            echo "Hello ";
+            echo twig_escape_filter($this->env, isset($context["name"]) ? $context["name"] : null), "html", null, true);
+        }
+
+        // some more code
+    }
+
+.. note::
+
+    The default compiler (``Twig_Compiler``) can be changed by calling the
+    ``setCompiler()`` method::
+
+        $twig->setCompiler($compiler);
diff --git a/vendor/twig/twig/doc/intro.rst b/vendor/twig/twig/doc/intro.rst
new file mode 100644
index 000000000..9b38c97d4
--- /dev/null
+++ b/vendor/twig/twig/doc/intro.rst
@@ -0,0 +1,85 @@
+Introduction
+============
+
+This is the documentation for Twig, the flexible, fast, and secure template
+engine for PHP.
+
+If you have any exposure to other text-based template languages, such as
+Smarty, Django, or Jinja, you should feel right at home with Twig. It's both
+designer and developer friendly by sticking to PHP's principles and adding
+functionality useful for templating environments.
+
+The key-features are...
+
+* *Fast*: Twig compiles templates down to plain optimized PHP code. The
+  overhead compared to regular PHP code was reduced to the very minimum.
+
+* *Secure*: Twig has a sandbox mode to evaluate untrusted template code. This
+  allows Twig to be used as a template language for applications where users
+  may modify the template design.
+
+* *Flexible*: Twig is powered by a flexible lexer and parser. This allows the
+  developer to define its own custom tags and filters, and create its own DSL.
+
+Twig is used by many Open-Source projects like Symfony, Drupal8, eZPublish,
+phpBB, Piwik, OroCRM, and many frameworks have support for it as well like
+Slim, Yii, Laravel, Codeigniter, and Kohana, just to name a few.
+
+Prerequisites
+-------------
+
+Twig needs at least **PHP 5.2.7** to run.
+
+Installation
+------------
+
+The recommended way to install Twig is via Composer:
+
+.. code-block:: bash
+
+    composer require "twig/twig:~1.0"
+
+.. note::
+
+    To learn more about the other installation methods, read the
+    :doc:`installation<installation>` chapter; it also explains how to install
+    the Twig C extension.
+
+Basic API Usage
+---------------
+
+This section gives you a brief introduction to the PHP API for Twig.
+
+.. code-block:: php
+
+    require_once '/path/to/vendor/autoload.php';
+
+    $loader = new Twig_Loader_Array(array(
+        'index' => 'Hello {{ name }}!',
+    ));
+    $twig = new Twig_Environment($loader);
+
+    echo $twig->render('index', array('name' => 'Fabien'));
+
+Twig uses a loader (``Twig_Loader_Array``) to locate templates, and an
+environment (``Twig_Environment``) to store the configuration.
+
+The ``render()`` method loads the template passed as a first argument and
+renders it with the variables passed as a second argument.
+
+As templates are generally stored on the filesystem, Twig also comes with a
+filesystem loader::
+
+    $loader = new Twig_Loader_Filesystem('/path/to/templates');
+    $twig = new Twig_Environment($loader, array(
+        'cache' => '/path/to/compilation_cache',
+    ));
+
+    echo $twig->render('index.html', array('name' => 'Fabien'));
+
+.. tip::
+
+    If you are not using Composer, use the Twig built-in autoloader::
+
+        require_once '/path/to/lib/Twig/Autoloader.php';
+        Twig_Autoloader::register();
diff --git a/vendor/twig/twig/doc/recipes.rst b/vendor/twig/twig/doc/recipes.rst
new file mode 100644
index 000000000..6ad53276c
--- /dev/null
+++ b/vendor/twig/twig/doc/recipes.rst
@@ -0,0 +1,518 @@
+Recipes
+=======
+
+.. _deprecation-notices:
+
+Displaying Deprecation Notices
+------------------------------
+
+.. versionadded:: 1.21
+    This works as of Twig 1.21.
+
+Deprecated features generate deprecation notices (via a call to the
+``trigger_error()`` PHP function). By default, they are silenced and never
+displayed nor logged.
+
+To easily remove all deprecated feature usages from your templates, write and
+run a script along the lines of the following::
+
+    require_once __DIR__.'/vendor/autoload.php';
+
+    $twig = create_your_twig_env();
+
+    $deprecations = new Twig_Util_DeprecationCollector($twig);
+
+    print_r($deprecations->collectDir(__DIR__.'/templates'));
+
+The ``collectDir()`` method compiles all templates found in a directory,
+catches deprecation notices, and return them.
+
+.. tip::
+
+    If your templates are not stored on the filesystem, use the ``collect()``
+    method instead which takes an ``Iterator``; the iterator must return
+    template names as keys and template contents as values (as done by
+    ``Twig_Util_TemplateDirIterator``).
+
+However, this code won't find all deprecations (like using deprecated some Twig
+classes). To catch all notices, register a custom error handler like the one
+below::
+
+    $deprecations = array();
+    set_error_handler(function ($type, $msg) use (&$deprecations) {
+        if (E_USER_DEPRECATED === $type) {
+            $deprecations[] = $msg;
+        }
+    });
+
+    // run your application
+
+    print_r($deprecations);
+
+Note that most deprecation notices are triggered during **compilation**, so
+they won't be generated when templates are already cached.
+
+.. tip::
+
+    If you want to manage the deprecation notices from your PHPUnit tests, have
+    a look at the `symfony/phpunit-bridge
+    <https://github.com/symfony/phpunit-bridge>`_ package, which eases the
+    process a lot.
+
+Making a Layout conditional
+---------------------------
+
+Working with Ajax means that the same content is sometimes displayed as is,
+and sometimes decorated with a layout. As Twig layout template names can be
+any valid expression, you can pass a variable that evaluates to ``true`` when
+the request is made via Ajax and choose the layout accordingly:
+
+.. code-block:: jinja
+
+    {% extends request.ajax ? "base_ajax.html" : "base.html" %}
+
+    {% block content %}
+        This is the content to be displayed.
+    {% endblock %}
+
+Making an Include dynamic
+-------------------------
+
+When including a template, its name does not need to be a string. For
+instance, the name can depend on the value of a variable:
+
+.. code-block:: jinja
+
+    {% include var ~ '_foo.html' %}
+
+If ``var`` evaluates to ``index``, the ``index_foo.html`` template will be
+rendered.
+
+As a matter of fact, the template name can be any valid expression, such as
+the following:
+
+.. code-block:: jinja
+
+    {% include var|default('index') ~ '_foo.html' %}
+
+Overriding a Template that also extends itself
+----------------------------------------------
+
+A template can be customized in two different ways:
+
+* *Inheritance*: A template *extends* a parent template and overrides some
+  blocks;
+
+* *Replacement*: If you use the filesystem loader, Twig loads the first
+  template it finds in a list of configured directories; a template found in a
+  directory *replaces* another one from a directory further in the list.
+
+But how do you combine both: *replace* a template that also extends itself
+(aka a template in a directory further in the list)?
+
+Let's say that your templates are loaded from both ``.../templates/mysite``
+and ``.../templates/default`` in this order. The ``page.twig`` template,
+stored in ``.../templates/default`` reads as follows:
+
+.. code-block:: jinja
+
+    {# page.twig #}
+    {% extends "layout.twig" %}
+
+    {% block content %}
+    {% endblock %}
+
+You can replace this template by putting a file with the same name in
+``.../templates/mysite``. And if you want to extend the original template, you
+might be tempted to write the following:
+
+.. code-block:: jinja
+
+    {# page.twig in .../templates/mysite #}
+    {% extends "page.twig" %} {# from .../templates/default #}
+
+Of course, this will not work as Twig will always load the template from
+``.../templates/mysite``.
+
+It turns out it is possible to get this to work, by adding a directory right
+at the end of your template directories, which is the parent of all of the
+other directories: ``.../templates`` in our case. This has the effect of
+making every template file within our system uniquely addressable. Most of the
+time you will use the "normal" paths, but in the special case of wanting to
+extend a template with an overriding version of itself we can reference its
+parent's full, unambiguous template path in the extends tag:
+
+.. code-block:: jinja
+
+    {# page.twig in .../templates/mysite #}
+    {% extends "default/page.twig" %} {# from .../templates #}
+
+.. note::
+
+    This recipe was inspired by the following Django wiki page:
+    http://code.djangoproject.com/wiki/ExtendingTemplates
+
+Customizing the Syntax
+----------------------
+
+Twig allows some syntax customization for the block delimiters. It's not
+recommended to use this feature as templates will be tied with your custom
+syntax. But for specific projects, it can make sense to change the defaults.
+
+To change the block delimiters, you need to create your own lexer object::
+
+    $twig = new Twig_Environment();
+
+    $lexer = new Twig_Lexer($twig, array(
+        'tag_comment'   => array('{#', '#}'),
+        'tag_block'     => array('{%', '%}'),
+        'tag_variable'  => array('{{', '}}'),
+        'interpolation' => array('#{', '}'),
+    ));
+    $twig->setLexer($lexer);
+
+Here are some configuration example that simulates some other template engines
+syntax::
+
+    // Ruby erb syntax
+    $lexer = new Twig_Lexer($twig, array(
+        'tag_comment'  => array('<%#', '%>'),
+        'tag_block'    => array('<%', '%>'),
+        'tag_variable' => array('<%=', '%>'),
+    ));
+
+    // SGML Comment Syntax
+    $lexer = new Twig_Lexer($twig, array(
+        'tag_comment'  => array('<!--#', '-->'),
+        'tag_block'    => array('<!--', '-->'),
+        'tag_variable' => array('${', '}'),
+    ));
+
+    // Smarty like
+    $lexer = new Twig_Lexer($twig, array(
+        'tag_comment'  => array('{*', '*}'),
+        'tag_block'    => array('{', '}'),
+        'tag_variable' => array('{$', '}'),
+    ));
+
+Using dynamic Object Properties
+-------------------------------
+
+When Twig encounters a variable like ``article.title``, it tries to find a
+``title`` public property in the ``article`` object.
+
+It also works if the property does not exist but is rather defined dynamically
+thanks to the magic ``__get()`` method; you just need to also implement the
+``__isset()`` magic method like shown in the following snippet of code::
+
+    class Article
+    {
+        public function __get($name)
+        {
+            if ('title' == $name) {
+                return 'The title';
+            }
+
+            // throw some kind of error
+        }
+
+        public function __isset($name)
+        {
+            if ('title' == $name) {
+                return true;
+            }
+
+            return false;
+        }
+    }
+
+Accessing the parent Context in Nested Loops
+--------------------------------------------
+
+Sometimes, when using nested loops, you need to access the parent context. The
+parent context is always accessible via the ``loop.parent`` variable. For
+instance, if you have the following template data::
+
+    $data = array(
+        'topics' => array(
+            'topic1' => array('Message 1 of topic 1', 'Message 2 of topic 1'),
+            'topic2' => array('Message 1 of topic 2', 'Message 2 of topic 2'),
+        ),
+    );
+
+And the following template to display all messages in all topics:
+
+.. code-block:: jinja
+
+    {% for topic, messages in topics %}
+        * {{ loop.index }}: {{ topic }}
+      {% for message in messages %}
+          - {{ loop.parent.loop.index }}.{{ loop.index }}: {{ message }}
+      {% endfor %}
+    {% endfor %}
+
+The output will be similar to:
+
+.. code-block:: text
+
+    * 1: topic1
+      - 1.1: The message 1 of topic 1
+      - 1.2: The message 2 of topic 1
+    * 2: topic2
+      - 2.1: The message 1 of topic 2
+      - 2.2: The message 2 of topic 2
+
+In the inner loop, the ``loop.parent`` variable is used to access the outer
+context. So, the index of the current ``topic`` defined in the outer for loop
+is accessible via the ``loop.parent.loop.index`` variable.
+
+Defining undefined Functions and Filters on the Fly
+---------------------------------------------------
+
+When a function (or a filter) is not defined, Twig defaults to throw a
+``Twig_Error_Syntax`` exception. However, it can also call a `callback`_ (any
+valid PHP callable) which should return a function (or a filter).
+
+For filters, register callbacks with ``registerUndefinedFilterCallback()``.
+For functions, use ``registerUndefinedFunctionCallback()``::
+
+    // auto-register all native PHP functions as Twig functions
+    // don't try this at home as it's not secure at all!
+    $twig->registerUndefinedFunctionCallback(function ($name) {
+        if (function_exists($name)) {
+            return new Twig_Function_Function($name);
+        }
+
+        return false;
+    });
+
+If the callable is not able to return a valid function (or filter), it must
+return ``false``.
+
+If you register more than one callback, Twig will call them in turn until one
+does not return ``false``.
+
+.. tip::
+
+    As the resolution of functions and filters is done during compilation,
+    there is no overhead when registering these callbacks.
+
+Validating the Template Syntax
+------------------------------
+
+When template code is provided by a third-party (through a web interface for
+instance), it might be interesting to validate the template syntax before
+saving it. If the template code is stored in a `$template` variable, here is
+how you can do it::
+
+    try {
+        $twig->parse($twig->tokenize($template));
+
+        // the $template is valid
+    } catch (Twig_Error_Syntax $e) {
+        // $template contains one or more syntax errors
+    }
+
+If you iterate over a set of files, you can pass the filename to the
+``tokenize()`` method to get the filename in the exception message::
+
+    foreach ($files as $file) {
+        try {
+            $twig->parse($twig->tokenize($template, $file));
+
+            // the $template is valid
+        } catch (Twig_Error_Syntax $e) {
+            // $template contains one or more syntax errors
+        }
+    }
+
+.. note::
+
+    This method won't catch any sandbox policy violations because the policy
+    is enforced during template rendering (as Twig needs the context for some
+    checks like allowed methods on objects).
+
+Refreshing modified Templates when OPcache or APC is enabled
+------------------------------------------------------------
+
+When using OPcache with ``opcache.validate_timestamps`` set to ``0`` or APC
+with ``apc.stat`` set to ``0`` and Twig cache enabled, clearing the template
+cache won't update the cache.
+
+To get around this, force Twig to invalidate the bytecode cache::
+
+    $twig = new Twig_Environment($loader, array(
+        'cache' => new Twig_Cache_Filesystem('/some/cache/path', Twig_Cache_Filesystem::FORCE_BYTECODE_INVALIDATION),
+        // ...
+    ));
+
+.. note::
+
+    Before Twig 1.22, you should extend ``Twig_Environment`` instead::
+
+        class OpCacheAwareTwigEnvironment extends Twig_Environment
+        {
+            protected function writeCacheFile($file, $content)
+            {
+                parent::writeCacheFile($file, $content);
+
+                // Compile cached file into bytecode cache
+                if (function_exists('opcache_invalidate')) {
+                    opcache_invalidate($file, true);
+                } elseif (function_exists('apc_compile_file')) {
+                    apc_compile_file($file);
+                }
+            }
+        }
+
+Reusing a stateful Node Visitor
+-------------------------------
+
+When attaching a visitor to a ``Twig_Environment`` instance, Twig uses it to
+visit *all* templates it compiles. If you need to keep some state information
+around, you probably want to reset it when visiting a new template.
+
+This can be easily achieved with the following code::
+
+    protected $someTemplateState = array();
+
+    public function enterNode(Twig_NodeInterface $node, Twig_Environment $env)
+    {
+        if ($node instanceof Twig_Node_Module) {
+            // reset the state as we are entering a new template
+            $this->someTemplateState = array();
+        }
+
+        // ...
+
+        return $node;
+    }
+
+Using a Database to store Templates
+-----------------------------------
+
+If you are developing a CMS, templates are usually stored in a database. This
+recipe gives you a simple PDO template loader you can use as a starting point
+for your own.
+
+First, let's create a temporary in-memory SQLite3 database to work with::
+
+    $dbh = new PDO('sqlite::memory:');
+    $dbh->exec('CREATE TABLE templates (name STRING, source STRING, last_modified INTEGER)');
+    $base = '{% block content %}{% endblock %}';
+    $index = '
+    {% extends "base.twig" %}
+    {% block content %}Hello {{ name }}{% endblock %}
+    ';
+    $now = time();
+    $dbh->exec("INSERT INTO templates (name, source, last_modified) VALUES ('base.twig', '$base', $now)");
+    $dbh->exec("INSERT INTO templates (name, source, last_modified) VALUES ('index.twig', '$index', $now)");
+
+We have created a simple ``templates`` table that hosts two templates:
+``base.twig`` and ``index.twig``.
+
+Now, let's define a loader able to use this database::
+
+    class DatabaseTwigLoader implements Twig_LoaderInterface, Twig_ExistsLoaderInterface
+    {
+        protected $dbh;
+
+        public function __construct(PDO $dbh)
+        {
+            $this->dbh = $dbh;
+        }
+
+        public function getSource($name)
+        {
+            if (false === $source = $this->getValue('source', $name)) {
+                throw new Twig_Error_Loader(sprintf('Template "%s" does not exist.', $name));
+            }
+
+            return $source;
+        }
+
+        // Twig_ExistsLoaderInterface as of Twig 1.11
+        public function exists($name)
+        {
+            return $name === $this->getValue('name', $name);
+        }
+
+        public function getCacheKey($name)
+        {
+            return $name;
+        }
+
+        public function isFresh($name, $time)
+        {
+            if (false === $lastModified = $this->getValue('last_modified', $name)) {
+                return false;
+            }
+
+            return $lastModified <= $time;
+        }
+
+        protected function getValue($column, $name)
+        {
+            $sth = $this->dbh->prepare('SELECT '.$column.' FROM templates WHERE name = :name');
+            $sth->execute(array(':name' => (string) $name));
+
+            return $sth->fetchColumn();
+        }
+    }
+
+Finally, here is an example on how you can use it::
+
+    $loader = new DatabaseTwigLoader($dbh);
+    $twig = new Twig_Environment($loader);
+
+    echo $twig->render('index.twig', array('name' => 'Fabien'));
+
+Using different Template Sources
+--------------------------------
+
+This recipe is the continuation of the previous one. Even if you store the
+contributed templates in a database, you might want to keep the original/base
+templates on the filesystem. When templates can be loaded from different
+sources, you need to use the ``Twig_Loader_Chain`` loader.
+
+As you can see in the previous recipe, we reference the template in the exact
+same way as we would have done it with a regular filesystem loader. This is
+the key to be able to mix and match templates coming from the database, the
+filesystem, or any other loader for that matter: the template name should be a
+logical name, and not the path from the filesystem::
+
+    $loader1 = new DatabaseTwigLoader($dbh);
+    $loader2 = new Twig_Loader_Array(array(
+        'base.twig' => '{% block content %}{% endblock %}',
+    ));
+    $loader = new Twig_Loader_Chain(array($loader1, $loader2));
+
+    $twig = new Twig_Environment($loader);
+
+    echo $twig->render('index.twig', array('name' => 'Fabien'));
+
+Now that the ``base.twig`` templates is defined in an array loader, you can
+remove it from the database, and everything else will still work as before.
+
+Loading a Template from a String
+--------------------------------
+
+From a template, you can easily load a template stored in a string via the
+``template_from_string`` function (available as of Twig 1.11 via the
+``Twig_Extension_StringLoader`` extension)::
+
+.. code-block:: jinja
+
+    {{ include(template_from_string("Hello {{ name }}")) }}
+
+From PHP, it's also possible to load a template stored in a string via
+``Twig_Environment::createTemplate()`` (available as of Twig 1.18)::
+
+    $template = $twig->createTemplate('hello {{ name }}');
+    echo $template->render(array('name' => 'Fabien'));
+
+.. note::
+
+    Never use the ``Twig_Loader_String`` loader, which has severe limitations.
+
+.. _callback: http://www.php.net/manual/en/function.is-callable.php
diff --git a/vendor/twig/twig/doc/tags/autoescape.rst b/vendor/twig/twig/doc/tags/autoescape.rst
new file mode 100644
index 000000000..4208d1a31
--- /dev/null
+++ b/vendor/twig/twig/doc/tags/autoescape.rst
@@ -0,0 +1,83 @@
+``autoescape``
+==============
+
+Whether automatic escaping is enabled or not, you can mark a section of a
+template to be escaped or not by using the ``autoescape`` tag:
+
+.. code-block:: jinja
+
+    {# The following syntax works as of Twig 1.8 -- see the note below for previous versions #}
+
+    {% autoescape %}
+        Everything will be automatically escaped in this block
+        using the HTML strategy
+    {% endautoescape %}
+
+    {% autoescape 'html' %}
+        Everything will be automatically escaped in this block
+        using the HTML strategy
+    {% endautoescape %}
+
+    {% autoescape 'js' %}
+        Everything will be automatically escaped in this block
+        using the js escaping strategy
+    {% endautoescape %}
+
+    {% autoescape false %}
+        Everything will be outputted as is in this block
+    {% endautoescape %}
+
+.. note::
+
+    Before Twig 1.8, the syntax was different:
+
+    .. code-block:: jinja
+
+        {% autoescape true %}
+            Everything will be automatically escaped in this block
+            using the HTML strategy
+        {% endautoescape %}
+
+        {% autoescape false %}
+            Everything will be outputted as is in this block
+        {% endautoescape %}
+
+        {% autoescape true js %}
+            Everything will be automatically escaped in this block
+            using the js escaping strategy
+        {% endautoescape %}
+
+When automatic escaping is enabled everything is escaped by default except for
+values explicitly marked as safe. Those can be marked in the template by using
+the :doc:`raw<../filters/raw>` filter:
+
+.. code-block:: jinja
+
+    {% autoescape %}
+        {{ safe_value|raw }}
+    {% endautoescape %}
+
+Functions returning template data (like :doc:`macros<macro>` and
+:doc:`parent<../functions/parent>`) always return safe markup.
+
+.. note::
+
+    Twig is smart enough to not escape an already escaped value by the
+    :doc:`escape<../filters/escape>` filter.
+
+.. note::
+
+    Twig does not escape static expressions:
+
+    .. code-block:: jinja
+
+        {% set hello = "<strong>Hello</strong>" %}
+        {{ hello }}
+        {{ "<strong>world</strong>" }}
+
+    Will be rendered "<strong>Hello</strong> **world**".
+
+.. note::
+
+    The chapter :doc:`Twig for Developers<../api>` gives more information
+    about when and how automatic escaping is applied.
diff --git a/vendor/twig/twig/doc/tags/block.rst b/vendor/twig/twig/doc/tags/block.rst
new file mode 100644
index 000000000..e38048232
--- /dev/null
+++ b/vendor/twig/twig/doc/tags/block.rst
@@ -0,0 +1,11 @@
+``block``
+=========
+
+Blocks are used for inheritance and act as placeholders and replacements at
+the same time. They are documented in detail in the documentation for the
+:doc:`extends<../tags/extends>` tag.
+
+Block names should consist of alphanumeric characters, and underscores. Dashes
+are not permitted.
+
+.. seealso:: :doc:`block<../functions/block>`, :doc:`parent<../functions/parent>`, :doc:`use<../tags/use>`, :doc:`extends<../tags/extends>`
diff --git a/vendor/twig/twig/doc/tags/do.rst b/vendor/twig/twig/doc/tags/do.rst
new file mode 100644
index 000000000..1c344e302
--- /dev/null
+++ b/vendor/twig/twig/doc/tags/do.rst
@@ -0,0 +1,12 @@
+``do``
+======
+
+.. versionadded:: 1.5
+    The ``do`` tag was added in Twig 1.5.
+
+The ``do`` tag works exactly like the regular variable expression (``{{ ...
+}}``) just that it doesn't print anything:
+
+.. code-block:: jinja
+
+    {% do 1 + 2 %}
diff --git a/vendor/twig/twig/doc/tags/embed.rst b/vendor/twig/twig/doc/tags/embed.rst
new file mode 100644
index 000000000..5a6a0299a
--- /dev/null
+++ b/vendor/twig/twig/doc/tags/embed.rst
@@ -0,0 +1,178 @@
+``embed``
+=========
+
+.. versionadded:: 1.8
+    The ``embed`` tag was added in Twig 1.8.
+
+The ``embed`` tag combines the behaviour of :doc:`include<include>` and
+:doc:`extends<extends>`.
+It allows you to include another template's contents, just like ``include``
+does. But it also allows you to override any block defined inside the
+included template, like when extending a template.
+
+Think of an embedded template as a "micro layout skeleton".
+
+.. code-block:: jinja
+
+    {% embed "teasers_skeleton.twig" %}
+        {# These blocks are defined in "teasers_skeleton.twig" #}
+        {# and we override them right here:                    #}
+        {% block left_teaser %}
+            Some content for the left teaser box
+        {% endblock %}
+        {% block right_teaser %}
+            Some content for the right teaser box
+        {% endblock %}
+    {% endembed %}
+
+The ``embed`` tag takes the idea of template inheritance to the level of
+content fragments. While template inheritance allows for "document skeletons",
+which are filled with life by child templates, the ``embed`` tag allows you to
+create "skeletons" for smaller units of content and re-use and fill them
+anywhere you like.
+
+Since the use case may not be obvious, let's look at a simplified example.
+Imagine a base template shared by multiple HTML pages, defining a single block
+named "content":
+
+.. code-block:: text
+
+    ┌─── page layout ─────────────────────┐
+    │                                     │
+    │           ┌── block "content" ──┐   │
+    │           │                     │   │
+    │           │                     │   │
+    │           │ (child template to  │   │
+    │           │  put content here)  │   │
+    │           │                     │   │
+    │           │                     │   │
+    │           └─────────────────────┘   │
+    │                                     │
+    └─────────────────────────────────────┘
+
+Some pages ("foo" and "bar") share the same content structure -
+two vertically stacked boxes:
+
+.. code-block:: text
+
+    ┌─── page layout ─────────────────────┐
+    │                                     │
+    │           ┌── block "content" ──┐   │
+    │           │ ┌─ block "top" ───┐ │   │
+    │           │ │                 │ │   │
+    │           │ └─────────────────┘ │   │
+    │           │ ┌─ block "bottom" ┐ │   │
+    │           │ │                 │ │   │
+    │           │ └─────────────────┘ │   │
+    │           └─────────────────────┘   │
+    │                                     │
+    └─────────────────────────────────────┘
+
+While other pages ("boom" and "baz") share a different content structure -
+two boxes side by side:
+
+.. code-block:: text
+
+    ┌─── page layout ─────────────────────┐
+    │                                     │
+    │           ┌── block "content" ──┐   │
+    │           │                     │   │    
+    │           │ ┌ block ┐ ┌ block ┐ │   │
+    │           │ │"left" │ │"right"│ │   │
+    │           │ │       │ │       │ │   │
+    │           │ │       │ │       │ │   │
+    │           │ └───────┘ └───────┘ │   │
+    │           └─────────────────────┘   │
+    │                                     │
+    └─────────────────────────────────────┘
+
+Without the ``embed`` tag, you have two ways to design your templates:
+
+ * Create two "intermediate" base templates that extend the master layout
+   template: one with vertically stacked boxes to be used by the "foo" and
+   "bar" pages and another one with side-by-side boxes for the "boom" and
+   "baz" pages.
+
+ * Embed the markup for the top/bottom and left/right boxes into each page 
+   template directly.
+
+These two solutions do not scale well because they each have a major drawback:
+
+ * The first solution may indeed work for this simplified example. But imagine
+   we add a sidebar, which may again contain different, recurring structures
+   of content. Now we would need to create intermediate base templates for
+   all occurring combinations of content structure and sidebar structure...
+   and so on.
+
+ * The second solution involves duplication of common code with all its negative
+   consequences: any change involves finding and editing all affected copies
+   of the structure, correctness has to be verified for each copy, copies may
+   go out of sync by careless modifications etc.
+
+In such a situation, the ``embed`` tag comes in handy. The common layout
+code can live in a single base template, and the two different content structures,
+let's call them "micro layouts" go into separate templates which are embedded
+as necessary:
+
+Page template ``foo.twig``:
+
+.. code-block:: jinja
+
+    {% extends "layout_skeleton.twig" %}
+
+    {% block content %}
+        {% embed "vertical_boxes_skeleton.twig" %}
+            {% block top %}
+                Some content for the top box
+            {% endblock %}
+
+            {% block bottom %}
+                Some content for the bottom box
+            {% endblock %}
+        {% endembed %}
+    {% endblock %}
+
+And here is the code for ``vertical_boxes_skeleton.twig``:
+
+.. code-block:: html+jinja
+
+    <div class="top_box">
+        {% block top %}
+            Top box default content
+        {% endblock %}
+    </div>
+
+    <div class="bottom_box">
+        {% block bottom %}
+            Bottom box default content
+        {% endblock %}
+    </div>
+
+The goal of the ``vertical_boxes_skeleton.twig`` template being to factor
+out the HTML markup for the boxes.
+
+The ``embed`` tag takes the exact same arguments as the ``include`` tag:
+
+.. code-block:: jinja
+
+    {% embed "base" with {'foo': 'bar'} %}
+        ...
+    {% endembed %}
+
+    {% embed "base" with {'foo': 'bar'} only %}
+        ...
+    {% endembed %}
+
+    {% embed "base" ignore missing %}
+        ...
+    {% endembed %}
+
+.. warning::
+
+    As embedded templates do not have "names", auto-escaping strategies based
+    on the template "filename" won't work as expected if you change the
+    context (for instance, if you embed a CSS/JavaScript template into an HTML
+    one). In that case, explicitly set the default auto-escaping strategy with
+    the ``autoescape`` tag.
+
+.. seealso:: :doc:`include<../tags/include>`
diff --git a/vendor/twig/twig/doc/tags/extends.rst b/vendor/twig/twig/doc/tags/extends.rst
new file mode 100644
index 000000000..1ad2b12b1
--- /dev/null
+++ b/vendor/twig/twig/doc/tags/extends.rst
@@ -0,0 +1,268 @@
+``extends``
+===========
+
+The ``extends`` tag can be used to extend a template from another one.
+
+.. note::
+
+    Like PHP, Twig does not support multiple inheritance. So you can only have
+    one extends tag called per rendering. However, Twig supports horizontal
+    :doc:`reuse<use>`.
+
+Let's define a base template, ``base.html``, which defines a simple HTML
+skeleton document:
+
+.. code-block:: html+jinja
+
+    <!DOCTYPE html>
+    <html>
+        <head>
+            {% block head %}
+                <link rel="stylesheet" href="style.css" />
+                <title>{% block title %}{% endblock %} - My Webpage</title>
+            {% endblock %}
+        </head>
+        <body>
+            <div id="content">{% block content %}{% endblock %}</div>
+            <div id="footer">
+                {% block footer %}
+                    &copy; Copyright 2011 by <a href="http://domain.invalid/">you</a>.
+                {% endblock %}
+            </div>
+        </body>
+    </html>
+
+In this example, the :doc:`block<block>` tags define four blocks that child
+templates can fill in.
+
+All the ``block`` tag does is to tell the template engine that a child
+template may override those portions of the template.
+
+Child Template
+--------------
+
+A child template might look like this:
+
+.. code-block:: jinja
+
+    {% extends "base.html" %}
+
+    {% block title %}Index{% endblock %}
+    {% block head %}
+        {{ parent() }}
+        <style type="text/css">
+            .important { color: #336699; }
+        </style>
+    {% endblock %}
+    {% block content %}
+        <h1>Index</h1>
+        <p class="important">
+            Welcome on my awesome homepage.
+        </p>
+    {% endblock %}
+
+The ``extends`` tag is the key here. It tells the template engine that this
+template "extends" another template. When the template system evaluates this
+template, first it locates the parent. The extends tag should be the first tag
+in the template.
+
+Note that since the child template doesn't define the ``footer`` block, the
+value from the parent template is used instead.
+
+You can't define multiple ``block`` tags with the same name in the same
+template. This limitation exists because a block tag works in "both"
+directions. That is, a block tag doesn't just provide a hole to fill - it also
+defines the content that fills the hole in the *parent*. If there were two
+similarly-named ``block`` tags in a template, that template's parent wouldn't
+know which one of the blocks' content to use.
+
+If you want to print a block multiple times you can however use the
+``block`` function:
+
+.. code-block:: jinja
+
+    <title>{% block title %}{% endblock %}</title>
+    <h1>{{ block('title') }}</h1>
+    {% block body %}{% endblock %}
+
+Parent Blocks
+-------------
+
+It's possible to render the contents of the parent block by using the
+:doc:`parent<../functions/parent>` function. This gives back the results of
+the parent block:
+
+.. code-block:: jinja
+
+    {% block sidebar %}
+        <h3>Table Of Contents</h3>
+        ...
+        {{ parent() }}
+    {% endblock %}
+
+Named Block End-Tags
+--------------------
+
+Twig allows you to put the name of the block after the end tag for better
+readability:
+
+.. code-block:: jinja
+
+    {% block sidebar %}
+        {% block inner_sidebar %}
+            ...
+        {% endblock inner_sidebar %}
+    {% endblock sidebar %}
+
+Of course, the name after the ``endblock`` word must match the block name.
+
+Block Nesting and Scope
+-----------------------
+
+Blocks can be nested for more complex layouts. Per default, blocks have access
+to variables from outer scopes:
+
+.. code-block:: jinja
+
+    {% for item in seq %}
+        <li>{% block loop_item %}{{ item }}{% endblock %}</li>
+    {% endfor %}
+
+Block Shortcuts
+---------------
+
+For blocks with few content, it's possible to use a shortcut syntax. The
+following constructs do the same:
+
+.. code-block:: jinja
+
+    {% block title %}
+        {{ page_title|title }}
+    {% endblock %}
+
+.. code-block:: jinja
+
+    {% block title page_title|title %}
+
+Dynamic Inheritance
+-------------------
+
+Twig supports dynamic inheritance by using a variable as the base template:
+
+.. code-block:: jinja
+
+    {% extends some_var %}
+
+If the variable evaluates to a ``Twig_Template`` object, Twig will use it as
+the parent template::
+
+    // {% extends layout %}
+
+    $layout = $twig->loadTemplate('some_layout_template.twig');
+
+    $twig->display('template.twig', array('layout' => $layout));
+
+.. versionadded:: 1.2
+    The possibility to pass an array of templates has been added in Twig 1.2.
+
+You can also provide a list of templates that are checked for existence. The
+first template that exists will be used as a parent:
+
+.. code-block:: jinja
+
+    {% extends ['layout.html', 'base_layout.html'] %}
+
+Conditional Inheritance
+-----------------------
+
+As the template name for the parent can be any valid Twig expression, it's
+possible to make the inheritance mechanism conditional:
+
+.. code-block:: jinja
+
+    {% extends standalone ? "minimum.html" : "base.html" %}
+
+In this example, the template will extend the "minimum.html" layout template
+if the ``standalone`` variable evaluates to ``true``, and "base.html"
+otherwise.
+
+How do blocks work?
+-------------------
+
+A block provides a way to change how a certain part of a template is rendered
+but it does not interfere in any way with the logic around it.
+
+Let's take the following example to illustrate how a block works and more
+importantly, how it does not work:
+
+.. code-block:: jinja
+
+    {# base.twig #}
+
+    {% for post in posts %}
+        {% block post %}
+            <h1>{{ post.title }}</h1>
+            <p>{{ post.body }}</p>
+        {% endblock %}
+    {% endfor %}
+
+If you render this template, the result would be exactly the same with or
+without the ``block`` tag. The ``block`` inside the ``for`` loop is just a way
+to make it overridable by a child template:
+
+.. code-block:: jinja
+
+    {# child.twig #}
+
+    {% extends "base.twig" %}
+
+    {% block post %}
+        <article>
+            <header>{{ post.title }}</header>
+            <section>{{ post.text }}</section>
+        </article>
+    {% endblock %}
+
+Now, when rendering the child template, the loop is going to use the block
+defined in the child template instead of the one defined in the base one; the
+executed template is then equivalent to the following one:
+
+.. code-block:: jinja
+
+    {% for post in posts %}
+        <article>
+            <header>{{ post.title }}</header>
+            <section>{{ post.text }}</section>
+        </article>
+    {% endfor %}
+
+Let's take another example: a block included within an ``if`` statement:
+
+.. code-block:: jinja
+
+    {% if posts is empty %}
+        {% block head %}
+            {{ parent() }}
+
+            <meta name="robots" content="noindex, follow">
+        {% endblock head %}
+    {% endif %}
+
+Contrary to what you might think, this template does not define a block
+conditionally; it just makes overridable by a child template the output of
+what will be rendered when the condition is ``true``.
+
+If you want the output to be displayed conditionally, use the following
+instead:
+
+.. code-block:: jinja
+
+    {% block head %}
+        {{ parent() }}
+
+        {% if posts is empty %}
+            <meta name="robots" content="noindex, follow">
+        {% endif %}
+    {% endblock head %}
+
+.. seealso:: :doc:`block<../functions/block>`, :doc:`block<../tags/block>`, :doc:`parent<../functions/parent>`, :doc:`use<../tags/use>`
diff --git a/vendor/twig/twig/doc/tags/filter.rst b/vendor/twig/twig/doc/tags/filter.rst
new file mode 100644
index 000000000..82ca5c62f
--- /dev/null
+++ b/vendor/twig/twig/doc/tags/filter.rst
@@ -0,0 +1,21 @@
+``filter``
+==========
+
+Filter sections allow you to apply regular Twig filters on a block of template
+data. Just wrap the code in the special ``filter`` section:
+
+.. code-block:: jinja
+
+    {% filter upper %}
+        This text becomes uppercase
+    {% endfilter %}
+
+You can also chain filters:
+
+.. code-block:: jinja
+
+    {% filter lower|escape %}
+        <strong>SOME TEXT</strong>
+    {% endfilter %}
+
+    {# outputs "&lt;strong&gt;some text&lt;/strong&gt;" #}
diff --git a/vendor/twig/twig/doc/tags/flush.rst b/vendor/twig/twig/doc/tags/flush.rst
new file mode 100644
index 000000000..55ef593a9
--- /dev/null
+++ b/vendor/twig/twig/doc/tags/flush.rst
@@ -0,0 +1,17 @@
+``flush``
+=========
+
+.. versionadded:: 1.5
+    The flush tag was added in Twig 1.5.
+
+The ``flush`` tag tells Twig to flush the output buffer:
+
+.. code-block:: jinja
+
+    {% flush %}
+
+.. note::
+
+    Internally, Twig uses the PHP `flush`_ function.
+
+.. _`flush`: http://php.net/flush
diff --git a/vendor/twig/twig/doc/tags/for.rst b/vendor/twig/twig/doc/tags/for.rst
new file mode 100644
index 000000000..0673b5511
--- /dev/null
+++ b/vendor/twig/twig/doc/tags/for.rst
@@ -0,0 +1,172 @@
+``for``
+=======
+
+Loop over each item in a sequence. For example, to display a list of users
+provided in a variable called ``users``:
+
+.. code-block:: jinja
+
+    <h1>Members</h1>
+    <ul>
+        {% for user in users %}
+            <li>{{ user.username|e }}</li>
+        {% endfor %}
+    </ul>
+
+.. note::
+
+    A sequence can be either an array or an object implementing the
+    ``Traversable`` interface.
+
+If you do need to iterate over a sequence of numbers, you can use the ``..``
+operator:
+
+.. code-block:: jinja
+
+    {% for i in 0..10 %}
+        * {{ i }}
+    {% endfor %}
+
+The above snippet of code would print all numbers from 0 to 10.
+
+It can be also useful with letters:
+
+.. code-block:: jinja
+
+    {% for letter in 'a'..'z' %}
+        * {{ letter }}
+    {% endfor %}
+
+The ``..`` operator can take any expression at both sides:
+
+.. code-block:: jinja
+
+    {% for letter in 'a'|upper..'z'|upper %}
+        * {{ letter }}
+    {% endfor %}
+
+.. tip:
+
+    If you need a step different from 1, you can use the ``range`` function
+    instead.
+
+The `loop` variable
+-------------------
+
+Inside of a ``for`` loop block you can access some special variables:
+
+===================== =============================================================
+Variable              Description
+===================== =============================================================
+``loop.index``        The current iteration of the loop. (1 indexed)
+``loop.index0``       The current iteration of the loop. (0 indexed)
+``loop.revindex``     The number of iterations from the end of the loop (1 indexed)
+``loop.revindex0``    The number of iterations from the end of the loop (0 indexed)
+``loop.first``        True if first iteration
+``loop.last``         True if last iteration
+``loop.length``       The number of items in the sequence
+``loop.parent``       The parent context
+===================== =============================================================
+
+.. code-block:: jinja
+
+    {% for user in users %}
+        {{ loop.index }} - {{ user.username }}
+    {% endfor %}
+
+.. note::
+
+    The ``loop.length``, ``loop.revindex``, ``loop.revindex0``, and
+    ``loop.last`` variables are only available for PHP arrays, or objects that
+    implement the ``Countable`` interface. They are also not available when
+    looping with a condition.
+
+.. versionadded:: 1.2
+    The ``if`` modifier support has been added in Twig 1.2.
+
+Adding a condition
+------------------
+
+Unlike in PHP, it's not possible to ``break`` or ``continue`` in a loop. You
+can however filter the sequence during iteration which allows you to skip
+items. The following example skips all the users which are not active:
+
+.. code-block:: jinja
+
+    <ul>
+        {% for user in users if user.active %}
+            <li>{{ user.username|e }}</li>
+        {% endfor %}
+    </ul>
+
+The advantage is that the special loop variable will count correctly thus not
+counting the users not iterated over. Keep in mind that properties like
+``loop.last`` will not be defined when using loop conditions.
+
+.. note::
+
+    Using the ``loop`` variable within the condition is not recommended as it
+    will probably not be doing what you expect it to. For instance, adding a
+    condition like ``loop.index > 4`` won't work as the index is only
+    incremented when the condition is true (so the condition will never
+    match).
+
+The `else` Clause
+-----------------
+
+If no iteration took place because the sequence was empty, you can render a
+replacement block by using ``else``:
+
+.. code-block:: jinja
+
+    <ul>
+        {% for user in users %}
+            <li>{{ user.username|e }}</li>
+        {% else %}
+            <li><em>no user found</em></li>
+        {% endfor %}
+    </ul>
+
+Iterating over Keys
+-------------------
+
+By default, a loop iterates over the values of the sequence. You can iterate
+on keys by using the ``keys`` filter:
+
+.. code-block:: jinja
+
+    <h1>Members</h1>
+    <ul>
+        {% for key in users|keys %}
+            <li>{{ key }}</li>
+        {% endfor %}
+    </ul>
+
+Iterating over Keys and Values
+------------------------------
+
+You can also access both keys and values:
+
+.. code-block:: jinja
+
+    <h1>Members</h1>
+    <ul>
+        {% for key, user in users %}
+            <li>{{ key }}: {{ user.username|e }}</li>
+        {% endfor %}
+    </ul>
+
+Iterating over a Subset
+-----------------------
+
+You might want to iterate over a subset of values. This can be achieved using
+the :doc:`slice <../filters/slice>` filter:
+
+.. code-block:: jinja
+
+    <h1>Top Ten Members</h1>
+    <ul>
+        {% for user in users|slice(0, 10) %}
+            <li>{{ user.username|e }}</li>
+        {% endfor %}
+    </ul>
diff --git a/vendor/twig/twig/doc/tags/from.rst b/vendor/twig/twig/doc/tags/from.rst
new file mode 100644
index 000000000..39334fdde
--- /dev/null
+++ b/vendor/twig/twig/doc/tags/from.rst
@@ -0,0 +1,8 @@
+``from``
+========
+
+The ``from`` tag imports :doc:`macro<../tags/macro>` names into the current
+namespace. The tag is documented in detail in the documentation for the
+:doc:`import<../tags/import>` tag.
+
+.. seealso:: :doc:`macro<../tags/macro>`, :doc:`import<../tags/import>`
diff --git a/vendor/twig/twig/doc/tags/if.rst b/vendor/twig/twig/doc/tags/if.rst
new file mode 100644
index 000000000..12edf980d
--- /dev/null
+++ b/vendor/twig/twig/doc/tags/if.rst
@@ -0,0 +1,76 @@
+``if``
+======
+
+The ``if`` statement in Twig is comparable with the if statements of PHP.
+
+In the simplest form you can use it to test if an expression evaluates to
+``true``:
+
+.. code-block:: jinja
+
+    {% if online == false %}
+        <p>Our website is in maintenance mode. Please, come back later.</p>
+    {% endif %}
+
+You can also test if an array is not empty:
+
+.. code-block:: jinja
+
+    {% if users %}
+        <ul>
+            {% for user in users %}
+                <li>{{ user.username|e }}</li>
+            {% endfor %}
+        </ul>
+    {% endif %}
+
+.. note::
+
+    If you want to test if the variable is defined, use ``if users is
+    defined`` instead.
+
+You can also use ``not`` to check for values that evaluate to ``false``:
+
+.. code-block:: jinja
+
+    {% if not user.subscribed %}
+        <p>You are not subscribed to our mailing list.</p>
+    {% endif %}
+
+For multiple conditions, ``and`` and ``or`` can be used:
+
+.. code-block:: jinja
+
+    {% if temperature > 18 and temperature < 27 %}
+        <p>It's a nice day for a walk in the park.</p>
+    {% endif %}
+
+For multiple branches ``elseif`` and ``else`` can be used like in PHP. You can
+use more complex ``expressions`` there too:
+
+.. code-block:: jinja
+
+    {% if kenny.sick %}
+        Kenny is sick.
+    {% elseif kenny.dead %}
+        You killed Kenny! You bastard!!!
+    {% else %}
+        Kenny looks okay --- so far
+    {% endif %}
+
+.. note::
+
+    The rules to determine if an expression is ``true`` or ``false`` are the
+    same as in PHP; here are the edge cases rules:
+
+    ====================== ====================
+    Value                  Boolean evaluation
+    ====================== ====================
+    empty string           false
+    numeric zero           false
+    whitespace-only string true
+    empty array            false
+    null                   false
+    non-empty array        true
+    object                 true
+    ====================== ====================
diff --git a/vendor/twig/twig/doc/tags/import.rst b/vendor/twig/twig/doc/tags/import.rst
new file mode 100644
index 000000000..21a1e1980
--- /dev/null
+++ b/vendor/twig/twig/doc/tags/import.rst
@@ -0,0 +1,57 @@
+``import``
+==========
+
+Twig supports putting often used code into :doc:`macros<../tags/macro>`. These
+macros can go into different templates and get imported from there.
+
+There are two ways to import templates. You can import the complete template
+into a variable or request specific macros from it.
+
+Imagine we have a helper module that renders forms (called ``forms.html``):
+
+.. code-block:: jinja
+
+    {% macro input(name, value, type, size) %}
+        <input type="{{ type|default('text') }}" name="{{ name }}" value="{{ value|e }}" size="{{ size|default(20) }}" />
+    {% endmacro %}
+
+    {% macro textarea(name, value, rows, cols) %}
+        <textarea name="{{ name }}" rows="{{ rows|default(10) }}" cols="{{ cols|default(40) }}">{{ value|e }}</textarea>
+    {% endmacro %}
+
+The easiest and most flexible is importing the whole module into a variable.
+That way you can access the attributes:
+
+.. code-block:: jinja
+
+    {% import 'forms.html' as forms %}
+
+    <dl>
+        <dt>Username</dt>
+        <dd>{{ forms.input('username') }}</dd>
+        <dt>Password</dt>
+        <dd>{{ forms.input('password', null, 'password') }}</dd>
+    </dl>
+    <p>{{ forms.textarea('comment') }}</p>
+
+Alternatively you can import names from the template into the current
+namespace:
+
+.. code-block:: jinja
+
+    {% from 'forms.html' import input as input_field, textarea %}
+
+    <dl>
+        <dt>Username</dt>
+        <dd>{{ input_field('username') }}</dd>
+        <dt>Password</dt>
+        <dd>{{ input_field('password', '', 'password') }}</dd>
+    </dl>
+    <p>{{ textarea('comment') }}</p>
+
+.. tip::
+
+    To import macros from the current file, use the special ``_self`` variable
+    for the source.
+
+.. seealso:: :doc:`macro<../tags/macro>`, :doc:`from<../tags/from>`
diff --git a/vendor/twig/twig/doc/tags/include.rst b/vendor/twig/twig/doc/tags/include.rst
new file mode 100644
index 000000000..da18dc65e
--- /dev/null
+++ b/vendor/twig/twig/doc/tags/include.rst
@@ -0,0 +1,86 @@
+``include``
+===========
+
+The ``include`` statement includes a template and returns the rendered content
+of that file into the current namespace:
+
+.. code-block:: jinja
+
+    {% include 'header.html' %}
+        Body
+    {% include 'footer.html' %}
+
+Included templates have access to the variables of the active context.
+
+If you are using the filesystem loader, the templates are looked for in the
+paths defined by it.
+
+You can add additional variables by passing them after the ``with`` keyword:
+
+.. code-block:: jinja
+
+    {# template.html will have access to the variables from the current context and the additional ones provided #}
+    {% include 'template.html' with {'foo': 'bar'} %}
+
+    {% set vars = {'foo': 'bar'} %}
+    {% include 'template.html' with vars %}
+
+You can disable access to the context by appending the ``only`` keyword:
+
+.. code-block:: jinja
+
+    {# only the foo variable will be accessible #}
+    {% include 'template.html' with {'foo': 'bar'} only %}
+
+.. code-block:: jinja
+
+    {# no variables will be accessible #}
+    {% include 'template.html' only %}
+
+.. tip::
+
+    When including a template created by an end user, you should consider
+    sandboxing it. More information in the :doc:`Twig for Developers<../api>`
+    chapter and in the :doc:`sandbox<../tags/sandbox>` tag documentation.
+
+The template name can be any valid Twig expression:
+
+.. code-block:: jinja
+
+    {% include some_var %}
+    {% include ajax ? 'ajax.html' : 'not_ajax.html' %}
+
+And if the expression evaluates to a ``Twig_Template`` object, Twig will use it
+directly::
+
+    // {% include template %}
+
+    $template = $twig->loadTemplate('some_template.twig');
+
+    $twig->loadTemplate('template.twig')->display(array('template' => $template));
+
+.. versionadded:: 1.2
+    The ``ignore missing`` feature has been added in Twig 1.2.
+
+You can mark an include with ``ignore missing`` in which case Twig will ignore
+the statement if the template to be included does not exist. It has to be
+placed just after the template name. Here some valid examples:
+
+.. code-block:: jinja
+
+    {% include 'sidebar.html' ignore missing %}
+    {% include 'sidebar.html' ignore missing with {'foo': 'bar'} %}
+    {% include 'sidebar.html' ignore missing only %}
+
+.. versionadded:: 1.2
+    The possibility to pass an array of templates has been added in Twig 1.2.
+
+You can also provide a list of templates that are checked for existence before
+inclusion. The first template that exists will be included:
+
+.. code-block:: jinja
+
+    {% include ['page_detailed.html', 'page.html'] %}
+
+If ``ignore missing`` is given, it will fall back to rendering nothing if none
+of the templates exist, otherwise it will throw an exception.
diff --git a/vendor/twig/twig/doc/tags/index.rst b/vendor/twig/twig/doc/tags/index.rst
new file mode 100644
index 000000000..e6a632b7d
--- /dev/null
+++ b/vendor/twig/twig/doc/tags/index.rst
@@ -0,0 +1,24 @@
+Tags
+====
+
+.. toctree::
+    :maxdepth: 1
+
+    autoescape
+    block
+    do
+    embed
+    extends
+    filter
+    flush
+    for
+    from
+    if
+    import
+    include
+    macro
+    sandbox
+    set
+    spaceless
+    use
+    verbatim
diff --git a/vendor/twig/twig/doc/tags/macro.rst b/vendor/twig/twig/doc/tags/macro.rst
new file mode 100644
index 000000000..60a1567d1
--- /dev/null
+++ b/vendor/twig/twig/doc/tags/macro.rst
@@ -0,0 +1,86 @@
+``macro``
+=========
+
+Macros are comparable with functions in regular programming languages. They
+are useful to put often used HTML idioms into reusable elements to not repeat
+yourself.
+
+Here is a small example of a macro that renders a form element:
+
+.. code-block:: jinja
+
+    {% macro input(name, value, type, size) %}
+        <input type="{{ type|default('text') }}" name="{{ name }}" value="{{ value|e }}" size="{{ size|default(20) }}" />
+    {% endmacro %}
+
+Macros differs from native PHP functions in a few ways:
+
+* Default argument values are defined by using the ``default`` filter in the
+  macro body;
+
+* Arguments of a macro are always optional.
+
+* If extra positional arguments are passed to a macro, they end up in the
+  special ``varargs`` variable as a list of values.
+
+But as with PHP functions, macros don't have access to the current template
+variables.
+
+.. tip::
+
+    You can pass the whole context as an argument by using the special
+    ``_context`` variable.
+
+Macros can be defined in any template, and need to be "imported" before being
+used (see the documentation for the :doc:`import<../tags/import>` tag for more
+information):
+
+.. code-block:: jinja
+
+    {% import "forms.html" as forms %}
+
+The above ``import`` call imports the "forms.html" file (which can contain only
+macros, or a template and some macros), and import the functions as items of
+the ``forms`` variable.
+
+The macro can then be called at will:
+
+.. code-block:: jinja
+
+    <p>{{ forms.input('username') }}</p>
+    <p>{{ forms.input('password', null, 'password') }}</p>
+
+If macros are defined and used in the same template, you can use the
+special ``_self`` variable to import them:
+
+.. code-block:: jinja
+
+    {% import _self as forms %}
+
+    <p>{{ forms.input('username') }}</p>
+
+.. warning::
+
+    When you define a macro in the template where you are going to use it, you
+    might be tempted to call the macro directly via ``_self.input()`` instead
+    of importing it; even if seems to work, this is just a side-effect of the
+    current implementation and it won't work anymore in Twig 2.x.
+
+When you want to use a macro in another macro from the same file, you need to
+import it locally:
+
+.. code-block:: jinja
+
+    {% macro input(name, value, type, size) %}
+        <input type="{{ type|default('text') }}" name="{{ name }}" value="{{ value|e }}" size="{{ size|default(20) }}" />
+    {% endmacro %}
+
+    {% macro wrapped_input(name, value, type, size) %}
+        {% import _self as forms %}
+
+        <div class="field">
+            {{ forms.input(name, value, type, size) }}
+        </div>
+    {% endmacro %}
+
+.. seealso:: :doc:`from<../tags/from>`, :doc:`import<../tags/import>`
diff --git a/vendor/twig/twig/doc/tags/sandbox.rst b/vendor/twig/twig/doc/tags/sandbox.rst
new file mode 100644
index 000000000..e186726c2
--- /dev/null
+++ b/vendor/twig/twig/doc/tags/sandbox.rst
@@ -0,0 +1,30 @@
+``sandbox``
+===========
+
+The ``sandbox`` tag can be used to enable the sandboxing mode for an included
+template, when sandboxing is not enabled globally for the Twig environment:
+
+.. code-block:: jinja
+
+    {% sandbox %}
+        {% include 'user.html' %}
+    {% endsandbox %}
+
+.. warning::
+
+    The ``sandbox`` tag is only available when the sandbox extension is
+    enabled (see the :doc:`Twig for Developers<../api>` chapter).
+
+.. note::
+
+    The ``sandbox`` tag can only be used to sandbox an include tag and it
+    cannot be used to sandbox a section of a template. The following example
+    won't work:
+
+    .. code-block:: jinja
+
+        {% sandbox %}
+            {% for i in 1..2 %}
+                {{ i }}
+            {% endfor %}
+        {% endsandbox %}
diff --git a/vendor/twig/twig/doc/tags/set.rst b/vendor/twig/twig/doc/tags/set.rst
new file mode 100644
index 000000000..3eba239a9
--- /dev/null
+++ b/vendor/twig/twig/doc/tags/set.rst
@@ -0,0 +1,78 @@
+``set``
+=======
+
+Inside code blocks you can also assign values to variables. Assignments use
+the ``set`` tag and can have multiple targets.
+
+Here is how you can assign the ``bar`` value to the ``foo`` variable:
+
+.. code-block:: jinja
+
+    {% set foo = 'bar' %}
+
+After the ``set`` call, the ``foo`` variable is available in the template like
+any other ones:
+
+.. code-block:: jinja
+
+    {# displays bar #}
+    {{ foo }}
+
+The assigned value can be any valid :ref:`Twig expressions
+<twig-expressions>`:
+
+.. code-block:: jinja
+
+    {% set foo = [1, 2] %}
+    {% set foo = {'foo': 'bar'} %}
+    {% set foo = 'foo' ~ 'bar' %}
+
+Several variables can be assigned in one block:
+
+.. code-block:: jinja
+
+    {% set foo, bar = 'foo', 'bar' %}
+
+    {# is equivalent to #}
+
+    {% set foo = 'foo' %}
+    {% set bar = 'bar' %}
+
+The ``set`` tag can also be used to 'capture' chunks of text:
+
+.. code-block:: jinja
+
+    {% set foo %}
+        <div id="pagination">
+            ...
+        </div>
+    {% endset %}
+
+.. caution::
+
+    If you enable automatic output escaping, Twig will only consider the
+    content to be safe when capturing chunks of text.
+
+.. note::
+
+    Note that loops are scoped in Twig; therefore a variable declared inside a
+    ``for`` loop is not accessible outside the loop itself:
+
+    .. code-block:: jinja
+
+        {% for item in list %}
+            {% set foo = item %}
+        {% endfor %}
+
+        {# foo is NOT available #}
+
+    If you want to access the variable, just declare it before the loop:
+
+    .. code-block:: jinja
+
+        {% set foo = "" %}
+        {% for item in list %}
+            {% set foo = item %}
+        {% endfor %}
+
+        {# foo is available #}
diff --git a/vendor/twig/twig/doc/tags/spaceless.rst b/vendor/twig/twig/doc/tags/spaceless.rst
new file mode 100644
index 000000000..b39cb27ef
--- /dev/null
+++ b/vendor/twig/twig/doc/tags/spaceless.rst
@@ -0,0 +1,37 @@
+``spaceless``
+=============
+
+Use the ``spaceless`` tag to remove whitespace *between HTML tags*, not
+whitespace within HTML tags or whitespace in plain text:
+
+.. code-block:: jinja
+
+    {% spaceless %}
+        <div>
+            <strong>foo</strong>
+        </div>
+    {% endspaceless %}
+
+    {# output will be <div><strong>foo</strong></div> #}
+
+This tag is not meant to "optimize" the size of the generated HTML content but
+merely to avoid extra whitespace between HTML tags to avoid browser rendering
+quirks under some circumstances.
+
+.. tip::
+
+    If you want to optimize the size of the generated HTML content, gzip
+    compress the output instead.
+
+.. tip::
+
+    If you want to create a tag that actually removes all extra whitespace in
+    an HTML string, be warned that this is not as easy as it seems to be
+    (think of ``textarea`` or ``pre`` tags for instance). Using a third-party
+    library like Tidy is probably a better idea.
+
+.. tip::
+
+    For more information on whitespace control, read the
+    :ref:`dedicated section <templates-whitespace-control>` of the documentation and learn how
+    you can also use the whitespace control modifier on your tags.
diff --git a/vendor/twig/twig/doc/tags/use.rst b/vendor/twig/twig/doc/tags/use.rst
new file mode 100644
index 000000000..071b1975e
--- /dev/null
+++ b/vendor/twig/twig/doc/tags/use.rst
@@ -0,0 +1,124 @@
+``use``
+=======
+
+.. versionadded:: 1.1
+    Horizontal reuse was added in Twig 1.1.
+
+.. note::
+
+    Horizontal reuse is an advanced Twig feature that is hardly ever needed in
+    regular templates. It is mainly used by projects that need to make
+    template blocks reusable without using inheritance.
+
+Template inheritance is one of the most powerful Twig's feature but it is
+limited to single inheritance; a template can only extend one other template.
+This limitation makes template inheritance simple to understand and easy to
+debug:
+
+.. code-block:: jinja
+
+    {% extends "base.html" %}
+
+    {% block title %}{% endblock %}
+    {% block content %}{% endblock %}
+
+Horizontal reuse is a way to achieve the same goal as multiple inheritance,
+but without the associated complexity:
+
+.. code-block:: jinja
+
+    {% extends "base.html" %}
+
+    {% use "blocks.html" %}
+
+    {% block title %}{% endblock %}
+    {% block content %}{% endblock %}
+
+The ``use`` statement tells Twig to import the blocks defined in
+``blocks.html`` into the current template (it's like macros, but for blocks):
+
+.. code-block:: jinja
+
+    {# blocks.html #}
+    
+    {% block sidebar %}{% endblock %}
+
+In this example, the ``use`` statement imports the ``sidebar`` block into the
+main template. The code is mostly equivalent to the following one (the
+imported blocks are not outputted automatically):
+
+.. code-block:: jinja
+
+    {% extends "base.html" %}
+
+    {% block sidebar %}{% endblock %}
+    {% block title %}{% endblock %}
+    {% block content %}{% endblock %}
+
+.. note::
+
+    The ``use`` tag only imports a template if it does not extend another
+    template, if it does not define macros, and if the body is empty. But it
+    can *use* other templates.
+
+.. note::
+
+    Because ``use`` statements are resolved independently of the context
+    passed to the template, the template reference cannot be an expression.
+
+The main template can also override any imported block. If the template
+already defines the ``sidebar`` block, then the one defined in ``blocks.html``
+is ignored. To avoid name conflicts, you can rename imported blocks:
+
+.. code-block:: jinja
+
+    {% extends "base.html" %}
+
+    {% use "blocks.html" with sidebar as base_sidebar, title as base_title %}
+
+    {% block sidebar %}{% endblock %}
+    {% block title %}{% endblock %}
+    {% block content %}{% endblock %}
+
+.. versionadded:: 1.3
+    The ``parent()`` support was added in Twig 1.3.
+
+The ``parent()`` function automatically determines the correct inheritance
+tree, so it can be used when overriding a block defined in an imported
+template:
+
+.. code-block:: jinja
+
+    {% extends "base.html" %}
+
+    {% use "blocks.html" %}
+
+    {% block sidebar %}
+        {{ parent() }}
+    {% endblock %}
+
+    {% block title %}{% endblock %}
+    {% block content %}{% endblock %}
+
+In this example, ``parent()`` will correctly call the ``sidebar`` block from
+the ``blocks.html`` template.
+
+.. tip::
+
+    In Twig 1.2, renaming allows you to simulate inheritance by calling the
+    "parent" block:
+
+    .. code-block:: jinja
+
+        {% extends "base.html" %}
+
+        {% use "blocks.html" with sidebar as parent_sidebar %}
+
+        {% block sidebar %}
+            {{ block('parent_sidebar') }}
+        {% endblock %}
+
+.. note::
+
+    You can use as many ``use`` statements as you want in any given template.
+    If two imported templates define the same block, the latest one wins.
diff --git a/vendor/twig/twig/doc/tags/verbatim.rst b/vendor/twig/twig/doc/tags/verbatim.rst
new file mode 100644
index 000000000..fe61ca1b0
--- /dev/null
+++ b/vendor/twig/twig/doc/tags/verbatim.rst
@@ -0,0 +1,24 @@
+``verbatim``
+============
+
+.. versionadded:: 1.12
+    The ``verbatim`` tag was added in Twig 1.12 (it was named ``raw`` before).
+
+The ``verbatim`` tag marks sections as being raw text that should not be
+parsed. For example to put Twig syntax as example into a template you can use
+this snippet:
+
+.. code-block:: jinja
+
+    {% verbatim %}
+        <ul>
+        {% for item in seq %}
+            <li>{{ item }}</li>
+        {% endfor %}
+        </ul>
+    {% endverbatim %}
+
+.. note::
+
+    The ``verbatim`` tag works in the exact same way as the old ``raw`` tag,
+    but was renamed to avoid confusion with the ``raw`` filter.
\ No newline at end of file
diff --git a/vendor/twig/twig/doc/templates.rst b/vendor/twig/twig/doc/templates.rst
new file mode 100644
index 000000000..36a0a7fa6
--- /dev/null
+++ b/vendor/twig/twig/doc/templates.rst
@@ -0,0 +1,907 @@
+Twig for Template Designers
+===========================
+
+This document describes the syntax and semantics of the template engine and
+will be most useful as reference to those creating Twig templates.
+
+Synopsis
+--------
+
+A template is simply a text file. It can generate any text-based format (HTML,
+XML, CSV, LaTeX, etc.). It doesn't have a specific extension, ``.html`` or
+``.xml`` are just fine.
+
+A template contains **variables** or **expressions**, which get replaced with
+values when the template is evaluated, and **tags**, which control the logic
+of the template.
+
+Below is a minimal template that illustrates a few basics. We will cover further
+details later on:
+
+.. code-block:: html+jinja
+
+    <!DOCTYPE html>
+    <html>
+        <head>
+            <title>My Webpage</title>
+        </head>
+        <body>
+            <ul id="navigation">
+            {% for item in navigation %}
+                <li><a href="{{ item.href }}">{{ item.caption }}</a></li>
+            {% endfor %}
+            </ul>
+
+            <h1>My Webpage</h1>
+            {{ a_variable }}
+        </body>
+    </html>
+
+There are two kinds of delimiters: ``{% ... %}`` and ``{{ ... }}``. The first
+one is used to execute statements such as for-loops, the latter prints the
+result of an expression to the template.
+
+IDEs Integration
+----------------
+
+Many IDEs support syntax highlighting and auto-completion for Twig:
+
+* *Textmate* via the `Twig bundle`_
+* *Vim* via the `Jinja syntax plugin`_ or the `vim-twig plugin`_
+* *Netbeans* via the `Twig syntax plugin`_ (until 7.1, native as of 7.2)
+* *PhpStorm* (native as of 2.1)
+* *Eclipse* via the `Twig plugin`_
+* *Sublime Text* via the `Twig bundle`_
+* *GtkSourceView* via the `Twig language definition`_ (used by gedit and other projects)
+* *Coda* and *SubEthaEdit* via the `Twig syntax mode`_
+* *Coda 2* via the `other Twig syntax mode`_
+* *Komodo* and *Komodo Edit* via the Twig highlight/syntax check mode
+* *Notepad++* via the `Notepad++ Twig Highlighter`_
+* *Emacs* via `web-mode.el`_
+* *Atom* via the `PHP-twig for atom`_
+
+Also, `TwigFiddle`_ is an online service that allows you to execute Twig templates
+from a browser; it supports all versions of Twig.
+
+Variables
+---------
+
+The application passes variables to the templates for manipulation in the
+template. Variables may have attributes or elements you can access,
+too. The visual representation of a variable depends heavily on the application providing
+it.
+
+You can use a dot (``.``) to access attributes of a variable (methods or
+properties of a PHP object, or items of a PHP array), or the so-called
+"subscript" syntax (``[]``):
+
+.. code-block:: jinja
+
+    {{ foo.bar }}
+    {{ foo['bar'] }}
+
+When the attribute contains special characters (like ``-`` that would be
+interpreted as the minus operator), use the ``attribute`` function instead to
+access the variable attribute:
+
+.. code-block:: jinja
+
+    {# equivalent to the non-working foo.data-foo #}
+    {{ attribute(foo, 'data-foo') }}
+
+.. note::
+
+    It's important to know that the curly braces are *not* part of the
+    variable but the print statement. When accessing variables inside tags,
+    don't put the braces around them.
+
+If a variable or attribute does not exist, you will receive a ``null`` value
+when the ``strict_variables`` option is set to ``false``; alternatively, if ``strict_variables``
+is set, Twig will throw an error (see :ref:`environment options<environment_options>`).
+
+.. sidebar:: Implementation
+
+    For convenience's sake ``foo.bar`` does the following things on the PHP
+    layer:
+
+    * check if ``foo`` is an array and ``bar`` a valid element;
+    * if not, and if ``foo`` is an object, check that ``bar`` is a valid property;
+    * if not, and if ``foo`` is an object, check that ``bar`` is a valid method
+      (even if ``bar`` is the constructor - use ``__construct()`` instead);
+    * if not, and if ``foo`` is an object, check that ``getBar`` is a valid method;
+    * if not, and if ``foo`` is an object, check that ``isBar`` is a valid method;
+    * if not, return a ``null`` value.
+
+    ``foo['bar']`` on the other hand only works with PHP arrays:
+
+    * check if ``foo`` is an array and ``bar`` a valid element;
+    * if not, return a ``null`` value.
+
+.. note::
+
+    If you want to access a dynamic attribute of a variable, use the
+    :doc:`attribute<functions/attribute>` function instead.
+
+Global Variables
+~~~~~~~~~~~~~~~~
+
+The following variables are always available in templates:
+
+* ``_self``: references the current template;
+* ``_context``: references the current context;
+* ``_charset``: references the current charset.
+
+Setting Variables
+~~~~~~~~~~~~~~~~~
+
+You can assign values to variables inside code blocks. Assignments use the
+:doc:`set<tags/set>` tag:
+
+.. code-block:: jinja
+
+    {% set foo = 'foo' %}
+    {% set foo = [1, 2] %}
+    {% set foo = {'foo': 'bar'} %}
+
+Filters
+-------
+
+Variables can be modified by **filters**. Filters are separated from the
+variable by a pipe symbol (``|``) and may have optional arguments in
+parentheses. Multiple filters can be chained. The output of one filter is
+applied to the next.
+
+The following example removes all HTML tags from the ``name`` and title-cases
+it:
+
+.. code-block:: jinja
+
+    {{ name|striptags|title }}
+
+Filters that accept arguments have parentheses around the arguments. This
+example will join a list by commas:
+
+.. code-block:: jinja
+
+    {{ list|join(', ') }}
+
+To apply a filter on a section of code, wrap it in the
+:doc:`filter<tags/filter>` tag:
+
+.. code-block:: jinja
+
+    {% filter upper %}
+        This text becomes uppercase
+    {% endfilter %}
+
+Go to the :doc:`filters<filters/index>` page to learn more about built-in
+filters.
+
+Functions
+---------
+
+Functions can be called to generate content. Functions are called by their
+name followed by parentheses (``()``) and may have arguments.
+
+For instance, the ``range`` function returns a list containing an arithmetic
+progression of integers:
+
+.. code-block:: jinja
+
+    {% for i in range(0, 3) %}
+        {{ i }},
+    {% endfor %}
+
+Go to the :doc:`functions<functions/index>` page to learn more about the
+built-in functions.
+
+Named Arguments
+---------------
+
+.. versionadded:: 1.12
+    Support for named arguments was added in Twig 1.12.
+
+.. code-block:: jinja
+
+    {% for i in range(low=1, high=10, step=2) %}
+        {{ i }},
+    {% endfor %}
+
+Using named arguments makes your templates more explicit about the meaning of
+the values you pass as arguments:
+
+.. code-block:: jinja
+
+    {{ data|convert_encoding('UTF-8', 'iso-2022-jp') }}
+
+    {# versus #}
+
+    {{ data|convert_encoding(from='iso-2022-jp', to='UTF-8') }}
+
+Named arguments also allow you to skip some arguments for which you don't want
+to change the default value:
+
+.. code-block:: jinja
+
+    {# the first argument is the date format, which defaults to the global date format if null is passed #}
+    {{ "now"|date(null, "Europe/Paris") }}
+
+    {# or skip the format value by using a named argument for the time zone #}
+    {{ "now"|date(timezone="Europe/Paris") }}
+
+You can also use both positional and named arguments in one call, in which
+case positional arguments must always come before named arguments:
+
+.. code-block:: jinja
+
+    {{ "now"|date('d/m/Y H:i', timezone="Europe/Paris") }}
+
+.. tip::
+
+    Each function and filter documentation page has a section where the names
+    of all arguments are listed when supported.
+
+Control Structure
+-----------------
+
+A control structure refers to all those things that control the flow of a
+program - conditionals (i.e. ``if``/``elseif``/``else``), ``for``-loops, as
+well as things like blocks. Control structures appear inside ``{% ... %}``
+blocks.
+
+For example, to display a list of users provided in a variable called
+``users``, use the :doc:`for<tags/for>` tag:
+
+.. code-block:: jinja
+
+    <h1>Members</h1>
+    <ul>
+        {% for user in users %}
+            <li>{{ user.username|e }}</li>
+        {% endfor %}
+    </ul>
+
+The :doc:`if<tags/if>` tag can be used to test an expression:
+
+.. code-block:: jinja
+
+    {% if users|length > 0 %}
+        <ul>
+            {% for user in users %}
+                <li>{{ user.username|e }}</li>
+            {% endfor %}
+        </ul>
+    {% endif %}
+
+Go to the :doc:`tags<tags/index>` page to learn more about the built-in tags.
+
+Comments
+--------
+
+To comment-out part of a line in a template, use the comment syntax ``{# ...
+#}``. This is useful for debugging or to add information for other template
+designers or yourself:
+
+.. code-block:: jinja
+
+    {# note: disabled template because we no longer use this
+        {% for user in users %}
+            ...
+        {% endfor %}
+    #}
+
+Including other Templates
+-------------------------
+
+The :doc:`include<tags/include>` tag is useful to include a template and
+return the rendered content of that template into the current one:
+
+.. code-block:: jinja
+
+    {% include 'sidebar.html' %}
+
+Per default included templates are passed the current context.
+
+The context that is passed to the included template includes variables defined
+in the template:
+
+.. code-block:: jinja
+
+    {% for box in boxes %}
+        {% include "render_box.html" %}
+    {% endfor %}
+
+The included template ``render_box.html`` is able to access ``box``.
+
+The filename of the template depends on the template loader. For instance, the
+``Twig_Loader_Filesystem`` allows you to access other templates by giving the
+filename. You can access templates in subdirectories with a slash:
+
+.. code-block:: jinja
+
+    {% include "sections/articles/sidebar.html" %}
+
+This behavior depends on the application embedding Twig.
+
+Template Inheritance
+--------------------
+
+The most powerful part of Twig is template inheritance. Template inheritance
+allows you to build a base "skeleton" template that contains all the common
+elements of your site and defines **blocks** that child templates can
+override.
+
+Sounds complicated but it is very basic. It's easier to understand it by
+starting with an example.
+
+Let's define a base template, ``base.html``, which defines a simple HTML
+skeleton document that you might use for a simple two-column page:
+
+.. code-block:: html+jinja
+
+    <!DOCTYPE html>
+    <html>
+        <head>
+            {% block head %}
+                <link rel="stylesheet" href="style.css" />
+                <title>{% block title %}{% endblock %} - My Webpage</title>
+            {% endblock %}
+        </head>
+        <body>
+            <div id="content">{% block content %}{% endblock %}</div>
+            <div id="footer">
+                {% block footer %}
+                    &copy; Copyright 2011 by <a href="http://domain.invalid/">you</a>.
+                {% endblock %}
+            </div>
+        </body>
+    </html>
+
+In this example, the :doc:`block<tags/block>` tags define four blocks that
+child templates can fill in. All the ``block`` tag does is to tell the
+template engine that a child template may override those portions of the
+template.
+
+A child template might look like this:
+
+.. code-block:: jinja
+
+    {% extends "base.html" %}
+
+    {% block title %}Index{% endblock %}
+    {% block head %}
+        {{ parent() }}
+        <style type="text/css">
+            .important { color: #336699; }
+        </style>
+    {% endblock %}
+    {% block content %}
+        <h1>Index</h1>
+        <p class="important">
+            Welcome to my awesome homepage.
+        </p>
+    {% endblock %}
+
+The :doc:`extends<tags/extends>` tag is the key here. It tells the template
+engine that this template "extends" another template. When the template system
+evaluates this template, first it locates the parent. The extends tag should
+be the first tag in the template.
+
+Note that since the child template doesn't define the ``footer`` block, the
+value from the parent template is used instead.
+
+It's possible to render the contents of the parent block by using the
+:doc:`parent<functions/parent>` function. This gives back the results of the
+parent block:
+
+.. code-block:: jinja
+
+    {% block sidebar %}
+        <h3>Table Of Contents</h3>
+        ...
+        {{ parent() }}
+    {% endblock %}
+
+.. tip::
+
+    The documentation page for the :doc:`extends<tags/extends>` tag describes
+    more advanced features like block nesting, scope, dynamic inheritance, and
+    conditional inheritance.
+
+.. note::
+
+    Twig also supports multiple inheritance with the so called horizontal reuse
+    with the help of the :doc:`use<tags/use>` tag. This is an advanced feature
+    hardly ever needed in regular templates.
+
+HTML Escaping
+-------------
+
+When generating HTML from templates, there's always a risk that a variable
+will include characters that affect the resulting HTML. There are two
+approaches: manually escaping each variable or automatically escaping
+everything by default.
+
+Twig supports both, automatic escaping is enabled by default.
+
+.. note::
+
+    Automatic escaping is only supported if the *escaper* extension has been
+    enabled (which is the default).
+
+Working with Manual Escaping
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+If manual escaping is enabled, it is **your** responsibility to escape
+variables if needed. What to escape? Any variable you don't trust.
+
+Escaping works by piping the variable through the
+:doc:`escape<filters/escape>` or ``e`` filter:
+
+.. code-block:: jinja
+
+    {{ user.username|e }}
+
+By default, the ``escape`` filter uses the ``html`` strategy, but depending on
+the escaping context, you might want to explicitly use any other available
+strategies:
+
+.. code-block:: jinja
+
+    {{ user.username|e('js') }}
+    {{ user.username|e('css') }}
+    {{ user.username|e('url') }}
+    {{ user.username|e('html_attr') }}
+
+Working with Automatic Escaping
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Whether automatic escaping is enabled or not, you can mark a section of a
+template to be escaped or not by using the :doc:`autoescape<tags/autoescape>`
+tag:
+
+.. code-block:: jinja
+
+    {% autoescape %}
+        Everything will be automatically escaped in this block (using the HTML strategy)
+    {% endautoescape %}
+
+By default, auto-escaping uses the ``html`` escaping strategy. If you output
+variables in other contexts, you need to explicitly escape them with the
+appropriate escaping strategy:
+
+.. code-block:: jinja
+
+    {% autoescape 'js' %}
+        Everything will be automatically escaped in this block (using the JS strategy)
+    {% endautoescape %}
+
+Escaping
+--------
+
+It is sometimes desirable or even necessary to have Twig ignore parts it would
+otherwise handle as variables or blocks. For example if the default syntax is
+used and you want to use ``{{`` as raw string in the template and not start a
+variable you have to use a trick.
+
+The easiest way is to output the variable delimiter (``{{``) by using a variable
+expression:
+
+.. code-block:: jinja
+
+    {{ '{{' }}
+
+For bigger sections it makes sense to mark a block
+:doc:`verbatim<tags/verbatim>`.
+
+Macros
+------
+
+.. versionadded:: 1.12
+    Support for default argument values was added in Twig 1.12.
+
+Macros are comparable with functions in regular programming languages. They
+are useful to reuse often used HTML fragments to not repeat yourself.
+
+A macro is defined via the :doc:`macro<tags/macro>` tag. Here is a small example
+(subsequently called ``forms.html``) of a macro that renders a form element:
+
+.. code-block:: jinja
+
+    {% macro input(name, value, type, size) %}
+        <input type="{{ type|default('text') }}" name="{{ name }}" value="{{ value|e }}" size="{{ size|default(20) }}" />
+    {% endmacro %}
+
+Macros can be defined in any template, and need to be "imported" via the
+:doc:`import<tags/import>` tag before being used:
+
+.. code-block:: jinja
+
+    {% import "forms.html" as forms %}
+
+    <p>{{ forms.input('username') }}</p>
+
+Alternatively, you can import individual macro names from a template into the
+current namespace via the :doc:`from<tags/from>` tag and optionally alias them:
+
+.. code-block:: jinja
+
+    {% from 'forms.html' import input as input_field %}
+
+    <dl>
+        <dt>Username</dt>
+        <dd>{{ input_field('username') }}</dd>
+        <dt>Password</dt>
+        <dd>{{ input_field('password', '', 'password') }}</dd>
+    </dl>
+
+A default value can also be defined for macro arguments when not provided in a
+macro call:
+
+.. code-block:: jinja
+
+    {% macro input(name, value = "", type = "text", size = 20) %}
+        <input type="{{ type }}" name="{{ name }}" value="{{ value|e }}" size="{{ size }}" />
+    {% endmacro %}
+
+If extra positional arguments are passed to a macro call, they end up in the
+special ``varargs`` variable as a list of values.
+
+.. _twig-expressions:
+
+Expressions
+-----------
+
+Twig allows expressions everywhere. These work very similar to regular PHP and
+even if you're not working with PHP you should feel comfortable with it.
+
+.. note::
+
+    The operator precedence is as follows, with the lowest-precedence
+    operators listed first: ``b-and``, ``b-xor``, ``b-or``, ``or``, ``and``,
+    ``==``, ``!=``, ``<``, ``>``, ``>=``, ``<=``, ``in``, ``matches``,
+    ``starts with``, ``ends with``, ``..``, ``+``, ``-``, ``~``, ``*``, ``/``,
+    ``//``, ``%``, ``is``, ``**``, ``|``, ``[]``, and ``.``:
+
+    .. code-block:: jinja
+
+        {% set greeting = 'Hello ' %}
+        {% set name = 'Fabien' %}
+
+        {{ greeting ~ name|lower }}   {# Hello fabien #}
+
+        {# use parenthesis to change precedence #}
+        {{ (greeting ~ name)|lower }} {# hello fabien #}
+
+Literals
+~~~~~~~~
+
+.. versionadded:: 1.5
+    Support for hash keys as names and expressions was added in Twig 1.5.
+
+The simplest form of expressions are literals. Literals are representations
+for PHP types such as strings, numbers, and arrays. The following literals
+exist:
+
+* ``"Hello World"``: Everything between two double or single quotes is a
+  string. They are useful whenever you need a string in the template (for
+  example as arguments to function calls, filters or just to extend or include
+  a template). A string can contain a delimiter if it is preceded by a
+  backslash (``\``) -- like in ``'It\'s good'``.
+
+* ``42`` / ``42.23``: Integers and floating point numbers are created by just
+  writing the number down. If a dot is present the number is a float,
+  otherwise an integer.
+
+* ``["foo", "bar"]``: Arrays are defined by a sequence of expressions
+  separated by a comma (``,``) and wrapped with squared brackets (``[]``).
+
+* ``{"foo": "bar"}``: Hashes are defined by a list of keys and values
+  separated by a comma (``,``) and wrapped with curly braces (``{}``):
+
+  .. code-block:: jinja
+
+    {# keys as string #}
+    { 'foo': 'foo', 'bar': 'bar' }
+
+    {# keys as names (equivalent to the previous hash) -- as of Twig 1.5 #}
+    { foo: 'foo', bar: 'bar' }
+
+    {# keys as integer #}
+    { 2: 'foo', 4: 'bar' }
+
+    {# keys as expressions (the expression must be enclosed into parentheses) -- as of Twig 1.5 #}
+    { (1 + 1): 'foo', (a ~ 'b'): 'bar' }
+
+* ``true`` / ``false``: ``true`` represents the true value, ``false``
+  represents the false value.
+
+* ``null``: ``null`` represents no specific value. This is the value returned
+  when a variable does not exist. ``none`` is an alias for ``null``.
+
+Arrays and hashes can be nested:
+
+.. code-block:: jinja
+
+    {% set foo = [1, {"foo": "bar"}] %}
+
+.. tip::
+
+    Using double-quoted or single-quoted strings has no impact on performance
+    but string interpolation is only supported in double-quoted strings.
+
+Math
+~~~~
+
+Twig allows you to calculate with values. This is rarely useful in templates
+but exists for completeness' sake. The following operators are supported:
+
+* ``+``: Adds two objects together (the operands are casted to numbers). ``{{
+  1 + 1 }}`` is ``2``.
+
+* ``-``: Subtracts the second number from the first one. ``{{ 3 - 2 }}`` is
+  ``1``.
+
+* ``/``: Divides two numbers. The returned value will be a floating point
+  number. ``{{ 1 / 2 }}`` is ``{{ 0.5 }}``.
+
+* ``%``: Calculates the remainder of an integer division. ``{{ 11 % 7 }}`` is
+  ``4``.
+
+* ``//``: Divides two numbers and returns the floored integer result. ``{{ 20
+  // 7 }}`` is ``2``, ``{{ -20  // 7 }}`` is ``-3`` (this is just syntactic
+  sugar for the :doc:`round<filters/round>` filter).
+
+* ``*``: Multiplies the left operand with the right one. ``{{ 2 * 2 }}`` would
+  return ``4``.
+
+* ``**``: Raises the left operand to the power of the right operand. ``{{ 2 **
+  3 }}`` would return ``8``.
+
+Logic
+~~~~~
+
+You can combine multiple expressions with the following operators:
+
+* ``and``: Returns true if the left and the right operands are both true.
+
+* ``or``: Returns true if the left or the right operand is true.
+
+* ``not``: Negates a statement.
+
+* ``(expr)``: Groups an expression.
+
+.. note::
+
+    Twig also support bitwise operators (``b-and``, ``b-xor``, and ``b-or``).
+
+.. note::
+
+    Operators are case sensitive.
+
+Comparisons
+~~~~~~~~~~~
+
+The following comparison operators are supported in any expression: ``==``,
+``!=``, ``<``, ``>``, ``>=``, and ``<=``.
+
+You can also check if a string ``starts with`` or ``ends with`` another
+string:
+
+.. code-block:: jinja
+
+    {% if 'Fabien' starts with 'F' %}
+    {% endif %}
+
+    {% if 'Fabien' ends with 'n' %}
+    {% endif %}
+
+.. note::
+
+    For complex string comparisons, the ``matches`` operator allows you to use
+    `regular expressions`_:
+
+    .. code-block:: jinja
+
+        {% if phone matches '/^[\\d\\.]+$/' %}
+        {% endif %}
+
+Containment Operator
+~~~~~~~~~~~~~~~~~~~~
+
+The ``in`` operator performs containment test.
+
+It returns ``true`` if the left operand is contained in the right:
+
+.. code-block:: jinja
+
+    {# returns true #}
+
+    {{ 1 in [1, 2, 3] }}
+
+    {{ 'cd' in 'abcde' }}
+
+.. tip::
+
+    You can use this filter to perform a containment test on strings, arrays,
+    or objects implementing the ``Traversable`` interface.
+
+To perform a negative test, use the ``not in`` operator:
+
+.. code-block:: jinja
+
+    {% if 1 not in [1, 2, 3] %}
+
+    {# is equivalent to #}
+    {% if not (1 in [1, 2, 3]) %}
+
+Test Operator
+~~~~~~~~~~~~~
+
+The ``is`` operator performs tests. Tests can be used to test a variable against
+a common expression. The right operand is name of the test:
+
+.. code-block:: jinja
+
+    {# find out if a variable is odd #}
+
+    {{ name is odd }}
+
+Tests can accept arguments too:
+
+.. code-block:: jinja
+
+    {% if post.status is constant('Post::PUBLISHED') %}
+
+Tests can be negated by using the ``is not`` operator:
+
+.. code-block:: jinja
+
+    {% if post.status is not constant('Post::PUBLISHED') %}
+
+    {# is equivalent to #}
+    {% if not (post.status is constant('Post::PUBLISHED')) %}
+
+Go to the :doc:`tests<tests/index>` page to learn more about the built-in
+tests.
+
+Other Operators
+~~~~~~~~~~~~~~~
+
+.. versionadded:: 1.12.0
+    Support for the extended ternary operator was added in Twig 1.12.0.
+
+The following operators don't fit into any of the other categories:
+
+* ``|``: Applies a filter.
+
+* ``..``: Creates a sequence based on the operand before and after the operator
+  (this is just syntactic sugar for the :doc:`range<functions/range>` function):
+
+  .. code-block:: jinja
+
+      {{ 1..5 }}
+
+      {# equivalent to #}
+      {{ range(1, 5) }}
+
+  Note that you must use parentheses when combining it with the filter operator
+  due to the :ref:`operator precedence rules <twig-expressions>`:
+
+  .. code-block:: jinja
+
+      (1..5)|join(', ')
+
+* ``~``: Converts all operands into strings and concatenates them. ``{{ "Hello
+  " ~ name ~ "!" }}`` would return (assuming ``name`` is ``'John'``) ``Hello
+  John!``.
+
+* ``.``, ``[]``: Gets an attribute of an object.
+
+* ``?:``: The ternary operator:
+
+  .. code-block:: jinja
+
+      {{ foo ? 'yes' : 'no' }}
+
+      {# as of Twig 1.12.0 #}
+      {{ foo ?: 'no' }} is the same as {{ foo ? foo : 'no' }}
+      {{ foo ? 'yes' }} is the same as {{ foo ? 'yes' : '' }}
+
+* ``??``: The null-coalescing operator:
+
+  .. code-block:: jinja
+
+      {# returns the value of foo if it is defined and not null, 'no' otherwise #}
+      {{ foo ?? 'no' }}
+
+String Interpolation
+~~~~~~~~~~~~~~~~~~~~
+
+.. versionadded:: 1.5
+    String interpolation was added in Twig 1.5.
+
+String interpolation (`#{expression}`) allows any valid expression to appear
+within a *double-quoted string*. The result of evaluating that expression is
+inserted into the string:
+
+.. code-block:: jinja
+
+    {{ "foo #{bar} baz" }}
+    {{ "foo #{1 + 2} baz" }}
+
+.. _templates-whitespace-control:
+
+Whitespace Control
+------------------
+
+.. versionadded:: 1.1
+    Tag level whitespace control was added in Twig 1.1.
+
+The first newline after a template tag is removed automatically (like in PHP.)
+Whitespace is not further modified by the template engine, so each whitespace
+(spaces, tabs, newlines etc.) is returned unchanged.
+
+Use the ``spaceless`` tag to remove whitespace *between HTML tags*:
+
+.. code-block:: jinja
+
+    {% spaceless %}
+        <div>
+            <strong>foo bar</strong>
+        </div>
+    {% endspaceless %}
+
+    {# output will be <div><strong>foo bar</strong></div> #}
+
+In addition to the spaceless tag you can also control whitespace on a per tag
+level. By using the whitespace control modifier on your tags, you can trim
+leading and or trailing whitespace:
+
+.. code-block:: jinja
+
+    {% set value = 'no spaces' %}
+    {#- No leading/trailing whitespace -#}
+    {%- if true -%}
+        {{- value -}}
+    {%- endif -%}
+
+    {# output 'no spaces' #}
+
+The above sample shows the default whitespace control modifier, and how you can
+use it to remove whitespace around tags.  Trimming space will consume all whitespace
+for that side of the tag.  It is possible to use whitespace trimming on one side
+of a tag:
+
+.. code-block:: jinja
+
+    {% set value = 'no spaces' %}
+    <li>    {{- value }}    </li>
+
+    {# outputs '<li>no spaces    </li>' #}
+
+Extensions
+----------
+
+Twig can be easily extended.
+
+If you are looking for new tags, filters, or functions, have a look at the Twig official
+`extension repository`_.
+
+If you want to create your own, read the :ref:`Creating an
+Extension<creating_extensions>` chapter.
+
+.. _`Twig bundle`:                https://github.com/Anomareh/PHP-Twig.tmbundle
+.. _`Jinja syntax plugin`:        http://jinja.pocoo.org/docs/integration/#vim
+.. _`vim-twig plugin`:            https://github.com/evidens/vim-twig
+.. _`Twig syntax plugin`:         http://plugins.netbeans.org/plugin/37069/php-twig
+.. _`Twig plugin`:                https://github.com/pulse00/Twig-Eclipse-Plugin
+.. _`Twig language definition`:   https://github.com/gabrielcorpse/gedit-twig-template-language
+.. _`extension repository`:       http://github.com/twigphp/Twig-extensions
+.. _`Twig syntax mode`:           https://github.com/bobthecow/Twig-HTML.mode
+.. _`other Twig syntax mode`:     https://github.com/muxx/Twig-HTML.mode
+.. _`Notepad++ Twig Highlighter`: https://github.com/Banane9/notepadplusplus-twig
+.. _`web-mode.el`:                http://web-mode.org/
+.. _`regular expressions`:        http://php.net/manual/en/pcre.pattern.php
+.. _`PHP-twig for atom`:          https://github.com/reesef/php-twig
+.. _`TwigFiddle`:                 http://twigfiddle.com/
diff --git a/vendor/twig/twig/doc/tests/constant.rst b/vendor/twig/twig/doc/tests/constant.rst
new file mode 100644
index 000000000..8d0724a80
--- /dev/null
+++ b/vendor/twig/twig/doc/tests/constant.rst
@@ -0,0 +1,22 @@
+``constant``
+============
+
+.. versionadded: 1.13.1
+    constant now accepts object instances as the second argument.
+
+``constant`` checks if a variable has the exact same value as a constant. You
+can use either global constants or class constants:
+
+.. code-block:: jinja
+
+    {% if post.status is constant('Post::PUBLISHED') %}
+        the status attribute is exactly the same as Post::PUBLISHED
+    {% endif %}
+
+You can test constants from object instances as well:
+
+.. code-block:: jinja
+
+    {% if post.status is constant('PUBLISHED', post) %}
+        the status attribute is exactly the same as Post::PUBLISHED
+    {% endif %}
diff --git a/vendor/twig/twig/doc/tests/defined.rst b/vendor/twig/twig/doc/tests/defined.rst
new file mode 100644
index 000000000..702ce7256
--- /dev/null
+++ b/vendor/twig/twig/doc/tests/defined.rst
@@ -0,0 +1,30 @@
+``defined``
+===========
+
+``defined`` checks if a variable is defined in the current context. This is very
+useful if you use the ``strict_variables`` option:
+
+.. code-block:: jinja
+
+    {# defined works with variable names #}
+    {% if foo is defined %}
+        ...
+    {% endif %}
+
+    {# and attributes on variables names #}
+    {% if foo.bar is defined %}
+        ...
+    {% endif %}
+
+    {% if foo['bar'] is defined %}
+        ...
+    {% endif %}
+
+When using the ``defined`` test on an expression that uses variables in some
+method calls, be sure that they are all defined first:
+
+.. code-block:: jinja
+
+    {% if var is defined and foo.method(var) is defined %}
+        ...
+    {% endif %}
diff --git a/vendor/twig/twig/doc/tests/divisibleby.rst b/vendor/twig/twig/doc/tests/divisibleby.rst
new file mode 100644
index 000000000..6c693b2b4
--- /dev/null
+++ b/vendor/twig/twig/doc/tests/divisibleby.rst
@@ -0,0 +1,14 @@
+``divisible by``
+================
+
+.. versionadded:: 1.14.2
+    The ``divisible by`` test was added in Twig 1.14.2 as an alias for
+    ``divisibleby``.
+
+``divisible by`` checks if a variable is divisible by a number:
+
+.. code-block:: jinja
+
+    {% if loop.index is divisible by(3) %}
+        ...
+    {% endif %}
diff --git a/vendor/twig/twig/doc/tests/empty.rst b/vendor/twig/twig/doc/tests/empty.rst
new file mode 100644
index 000000000..e5b55999d
--- /dev/null
+++ b/vendor/twig/twig/doc/tests/empty.rst
@@ -0,0 +1,11 @@
+``empty``
+=========
+
+``empty`` checks if a variable is empty:
+
+.. code-block:: jinja
+
+    {# evaluates to true if the foo variable is null, false, an empty array, or the empty string #}
+    {% if foo is empty %}
+        ...
+    {% endif %}
diff --git a/vendor/twig/twig/doc/tests/even.rst b/vendor/twig/twig/doc/tests/even.rst
new file mode 100644
index 000000000..6ab5cc39a
--- /dev/null
+++ b/vendor/twig/twig/doc/tests/even.rst
@@ -0,0 +1,10 @@
+``even``
+========
+
+``even`` returns ``true`` if the given number is even:
+
+.. code-block:: jinja
+
+    {{ var is even }}
+
+.. seealso:: :doc:`odd<../tests/odd>`
diff --git a/vendor/twig/twig/doc/tests/index.rst b/vendor/twig/twig/doc/tests/index.rst
new file mode 100644
index 000000000..c63208ee7
--- /dev/null
+++ b/vendor/twig/twig/doc/tests/index.rst
@@ -0,0 +1,15 @@
+Tests
+=====
+
+.. toctree::
+    :maxdepth: 1
+
+    constant
+    defined
+    divisibleby
+    empty
+    even
+    iterable
+    null
+    odd
+    sameas
diff --git a/vendor/twig/twig/doc/tests/iterable.rst b/vendor/twig/twig/doc/tests/iterable.rst
new file mode 100644
index 000000000..89a172f74
--- /dev/null
+++ b/vendor/twig/twig/doc/tests/iterable.rst
@@ -0,0 +1,19 @@
+``iterable``
+============
+
+.. versionadded:: 1.7
+    The iterable test was added in Twig 1.7.
+
+``iterable`` checks if a variable is an array or a traversable object:
+
+.. code-block:: jinja
+
+    {# evaluates to true if the foo variable is iterable #}
+    {% if users is iterable %}
+        {% for user in users %}
+            Hello {{ user }}!
+        {% endfor %}
+    {% else %}
+        {# users is probably a string #}
+        Hello {{ users }}!
+    {% endif %}
diff --git a/vendor/twig/twig/doc/tests/null.rst b/vendor/twig/twig/doc/tests/null.rst
new file mode 100644
index 000000000..44eec62e5
--- /dev/null
+++ b/vendor/twig/twig/doc/tests/null.rst
@@ -0,0 +1,12 @@
+``null``
+========
+
+``null`` returns ``true`` if the variable is ``null``:
+
+.. code-block:: jinja
+
+    {{ var is null }}
+
+.. note::
+
+    ``none`` is an alias for ``null``.
diff --git a/vendor/twig/twig/doc/tests/odd.rst b/vendor/twig/twig/doc/tests/odd.rst
new file mode 100644
index 000000000..9eece7776
--- /dev/null
+++ b/vendor/twig/twig/doc/tests/odd.rst
@@ -0,0 +1,10 @@
+``odd``
+=======
+
+``odd`` returns ``true`` if the given number is odd:
+
+.. code-block:: jinja
+
+    {{ var is odd }}
+
+.. seealso:: :doc:`even<../tests/even>`
diff --git a/vendor/twig/twig/doc/tests/sameas.rst b/vendor/twig/twig/doc/tests/sameas.rst
new file mode 100644
index 000000000..16f904d5c
--- /dev/null
+++ b/vendor/twig/twig/doc/tests/sameas.rst
@@ -0,0 +1,14 @@
+``same as``
+===========
+
+.. versionadded:: 1.14.2
+    The ``same as`` test was added in Twig 1.14.2 as an alias for ``sameas``.
+
+``same as`` checks if a variable is the same as another variable.
+This is the equivalent to ``===`` in PHP:
+
+.. code-block:: jinja
+
+    {% if foo.attribute is same as(false) %}
+        the foo attribute really is the 'false' PHP value
+    {% endif %}
diff --git a/vendor/twig/twig/ext/twig/.gitignore b/vendor/twig/twig/ext/twig/.gitignore
new file mode 100644
index 000000000..56ea76cc2
--- /dev/null
+++ b/vendor/twig/twig/ext/twig/.gitignore
@@ -0,0 +1,30 @@
+*.sw*
+.deps
+Makefile
+Makefile.fragments
+Makefile.global
+Makefile.objects
+acinclude.m4
+aclocal.m4
+build/
+config.cache
+config.guess
+config.h
+config.h.in
+config.log
+config.nice
+config.status
+config.sub
+configure
+configure.in
+install-sh
+libtool
+ltmain.sh
+missing
+mkinstalldirs
+run-tests.php
+twig.loT
+.libs/
+modules/
+twig.la
+twig.lo
diff --git a/vendor/twig/twig/ext/twig/config.m4 b/vendor/twig/twig/ext/twig/config.m4
new file mode 100644
index 000000000..83486be4c
--- /dev/null
+++ b/vendor/twig/twig/ext/twig/config.m4
@@ -0,0 +1,8 @@
+dnl config.m4 for extension twig
+
+PHP_ARG_ENABLE(twig, whether to enable twig support,
+[  --enable-twig           Enable twig support])
+
+if test "$PHP_TWIG" != "no"; then
+  PHP_NEW_EXTENSION(twig, twig.c, $ext_shared)
+fi
diff --git a/vendor/twig/twig/ext/twig/config.w32 b/vendor/twig/twig/ext/twig/config.w32
new file mode 100644
index 000000000..cb287b99b
--- /dev/null
+++ b/vendor/twig/twig/ext/twig/config.w32
@@ -0,0 +1,8 @@
+// vim:ft=javascript
+
+ARG_ENABLE("twig", "Twig support", "no");
+
+if (PHP_TWIG != "no") {
+	AC_DEFINE('HAVE_TWIG', 1);
+	EXTENSION('twig', 'twig.c');
+}
diff --git a/vendor/twig/twig/ext/twig/php_twig.h b/vendor/twig/twig/ext/twig/php_twig.h
new file mode 100644
index 000000000..2973e9d91
--- /dev/null
+++ b/vendor/twig/twig/ext/twig/php_twig.h
@@ -0,0 +1,35 @@
+/*
+   +----------------------------------------------------------------------+
+   | Twig Extension                                                       |
+   +----------------------------------------------------------------------+
+   | Copyright (c) 2011 Derick Rethans                                    |
+   +----------------------------------------------------------------------+
+   | Redistribution and use in source and binary forms, with or without   |
+   | modification, are permitted provided that the conditions mentioned   |
+   | in the accompanying LICENSE file are met (BSD-3-Clause).             |
+   +----------------------------------------------------------------------+
+   | Author: Derick Rethans <derick@derickrethans.nl>                     |
+   +----------------------------------------------------------------------+
+ */
+
+#ifndef PHP_TWIG_H
+#define PHP_TWIG_H
+
+#define PHP_TWIG_VERSION "1.24.0"
+
+#include "php.h"
+
+extern zend_module_entry twig_module_entry;
+#define phpext_twig_ptr &twig_module_entry
+#ifndef PHP_WIN32
+zend_module_entry *get_module(void);
+#endif
+
+#ifdef ZTS
+#include "TSRM.h"
+#endif
+
+PHP_FUNCTION(twig_template_get_attributes);
+PHP_RSHUTDOWN_FUNCTION(twig);
+
+#endif
diff --git a/vendor/twig/twig/ext/twig/twig.c b/vendor/twig/twig/ext/twig/twig.c
new file mode 100644
index 000000000..92d1addc7
--- /dev/null
+++ b/vendor/twig/twig/ext/twig/twig.c
@@ -0,0 +1,1127 @@
+/*
+   +----------------------------------------------------------------------+
+   | Twig Extension                                                       |
+   +----------------------------------------------------------------------+
+   | Copyright (c) 2011 Derick Rethans                                    |
+   +----------------------------------------------------------------------+
+   | Redistribution and use in source and binary forms, with or without   |
+   | modification, are permitted provided that the conditions mentioned   |
+   | in the accompanying LICENSE file are met (BSD-3-Clause).             |
+   +----------------------------------------------------------------------+
+   | Author: Derick Rethans <derick@derickrethans.nl>                     |
+   +----------------------------------------------------------------------+
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "php.h"
+#include "php_twig.h"
+#include "ext/standard/php_var.h"
+#include "ext/standard/php_string.h"
+#include "ext/standard/php_smart_str.h"
+#include "ext/spl/spl_exceptions.h"
+
+#include "Zend/zend_object_handlers.h"
+#include "Zend/zend_interfaces.h"
+#include "Zend/zend_exceptions.h"
+
+#ifndef Z_ADDREF_P
+#define Z_ADDREF_P(pz)                (pz)->refcount++
+#endif
+
+#define FREE_DTOR(z) 	\
+	zval_dtor(z); 		\
+	efree(z);
+
+#if PHP_VERSION_ID >= 50300
+	#define APPLY_TSRMLS_DC TSRMLS_DC
+	#define APPLY_TSRMLS_CC TSRMLS_CC
+	#define APPLY_TSRMLS_FETCH()
+#else
+	#define APPLY_TSRMLS_DC
+	#define APPLY_TSRMLS_CC
+	#define APPLY_TSRMLS_FETCH() TSRMLS_FETCH()
+#endif
+
+ZEND_BEGIN_ARG_INFO_EX(twig_template_get_attribute_args, ZEND_SEND_BY_VAL, ZEND_RETURN_VALUE, 6)
+	ZEND_ARG_INFO(0, template)
+	ZEND_ARG_INFO(0, object)
+	ZEND_ARG_INFO(0, item)
+	ZEND_ARG_INFO(0, arguments)
+	ZEND_ARG_INFO(0, type)
+	ZEND_ARG_INFO(0, isDefinedTest)
+ZEND_END_ARG_INFO()
+
+#ifndef PHP_FE_END
+#define PHP_FE_END { NULL, NULL, NULL}
+#endif
+
+static const zend_function_entry twig_functions[] = {
+	PHP_FE(twig_template_get_attributes, twig_template_get_attribute_args)
+	PHP_FE_END
+};
+
+PHP_RSHUTDOWN_FUNCTION(twig)
+{
+#if ZEND_DEBUG
+	CG(unclean_shutdown) = 0; /* get rid of PHPUnit's exit() and report memleaks */
+#endif
+	return SUCCESS;
+}
+
+zend_module_entry twig_module_entry = {
+	STANDARD_MODULE_HEADER,
+	"twig",
+	twig_functions,
+	NULL,
+	NULL,
+	NULL,
+	PHP_RSHUTDOWN(twig),
+	NULL,
+	PHP_TWIG_VERSION,
+	STANDARD_MODULE_PROPERTIES
+};
+
+
+#ifdef COMPILE_DL_TWIG
+ZEND_GET_MODULE(twig)
+#endif
+
+static int TWIG_ARRAY_KEY_EXISTS(zval *array, zval *key)
+{
+	if (Z_TYPE_P(array) != IS_ARRAY) {
+		return 0;
+	}
+
+	switch (Z_TYPE_P(key)) {
+		case IS_NULL:
+			return zend_hash_exists(Z_ARRVAL_P(array), "", 1);
+
+		case IS_BOOL:
+		case IS_DOUBLE:
+			convert_to_long(key);
+		case IS_LONG:
+			return zend_hash_index_exists(Z_ARRVAL_P(array), Z_LVAL_P(key));
+
+		default:
+			convert_to_string(key);
+			return zend_symtable_exists(Z_ARRVAL_P(array), Z_STRVAL_P(key), Z_STRLEN_P(key) + 1);
+	}
+}
+
+static int TWIG_INSTANCE_OF(zval *object, zend_class_entry *interface TSRMLS_DC)
+{
+	if (Z_TYPE_P(object) != IS_OBJECT) {
+		return 0;
+	}
+	return instanceof_function(Z_OBJCE_P(object), interface TSRMLS_CC);
+}
+
+static int TWIG_INSTANCE_OF_USERLAND(zval *object, char *interface TSRMLS_DC)
+{
+	zend_class_entry **pce;
+	if (Z_TYPE_P(object) != IS_OBJECT) {
+		return 0;
+	}
+	if (zend_lookup_class(interface, strlen(interface), &pce TSRMLS_CC) == FAILURE) {
+		return 0;
+	}
+	return instanceof_function(Z_OBJCE_P(object), *pce TSRMLS_CC);
+}
+
+static zval *TWIG_GET_ARRAYOBJECT_ELEMENT(zval *object, zval *offset TSRMLS_DC)
+{
+	zend_class_entry *ce = Z_OBJCE_P(object);
+	zval *retval;
+
+	if (Z_TYPE_P(object) == IS_OBJECT) {
+		SEPARATE_ARG_IF_REF(offset);
+		zend_call_method_with_1_params(&object, ce, NULL, "offsetget", &retval, offset);
+
+		zval_ptr_dtor(&offset);
+
+		if (!retval) {
+			if (!EG(exception)) {
+				zend_error(E_ERROR, "Undefined offset for object of type %s used as array", ce->name);
+			}
+			return NULL;
+		}
+
+		return retval;
+	}
+	return NULL;
+}
+
+static int TWIG_ISSET_ARRAYOBJECT_ELEMENT(zval *object, zval *offset TSRMLS_DC)
+{
+	zend_class_entry *ce = Z_OBJCE_P(object);
+	zval *retval;
+
+	if (Z_TYPE_P(object) == IS_OBJECT) {
+		SEPARATE_ARG_IF_REF(offset);
+		zend_call_method_with_1_params(&object, ce, NULL, "offsetexists", &retval, offset);
+
+		zval_ptr_dtor(&offset);
+
+		if (!retval) {
+			if (!EG(exception)) {
+				zend_error(E_ERROR, "Undefined offset for object of type %s used as array", ce->name);
+			}
+			return 0;
+		}
+
+		return (retval && Z_TYPE_P(retval) == IS_BOOL && Z_LVAL_P(retval));
+	}
+	return 0;
+}
+
+static char *TWIG_STRTOLOWER(const char *str, int str_len)
+{
+	char *item_dup;
+
+	item_dup = estrndup(str, str_len);
+	php_strtolower(item_dup, str_len);
+	return item_dup;
+}
+
+static zval *TWIG_CALL_USER_FUNC_ARRAY(zval *object, char *function, zval *arguments TSRMLS_DC)
+{
+	zend_fcall_info fci;
+	zval ***args = NULL;
+	int arg_count = 0;
+	HashTable *table;
+	HashPosition pos;
+	int i = 0;
+	zval *retval_ptr;
+	zval *zfunction;
+
+	if (arguments) {
+		table = HASH_OF(arguments);
+		args = safe_emalloc(sizeof(zval **), table->nNumOfElements, 0);
+
+		zend_hash_internal_pointer_reset_ex(table, &pos);
+
+		while (zend_hash_get_current_data_ex(table, (void **)&args[i], &pos) == SUCCESS) {
+			i++;
+			zend_hash_move_forward_ex(table, &pos);
+		}
+		arg_count = table->nNumOfElements;
+	}
+
+	MAKE_STD_ZVAL(zfunction);
+	ZVAL_STRING(zfunction, function, 1);
+	fci.size = sizeof(fci);
+	fci.function_table = EG(function_table);
+	fci.function_name = zfunction;
+	fci.symbol_table = NULL;
+#if PHP_VERSION_ID >= 50300
+	fci.object_ptr = object;
+#else
+	fci.object_pp = &object;
+#endif
+	fci.retval_ptr_ptr = &retval_ptr;
+	fci.param_count = arg_count;
+	fci.params = args;
+	fci.no_separation = 0;
+
+	if (zend_call_function(&fci, NULL TSRMLS_CC) == FAILURE) {
+		ALLOC_INIT_ZVAL(retval_ptr);
+		ZVAL_BOOL(retval_ptr, 0);
+	}
+
+	if (args) {
+		efree(fci.params);
+	}
+	FREE_DTOR(zfunction);
+	return retval_ptr;
+}
+
+static int TWIG_CALL_BOOLEAN(zval *object, char *functionName TSRMLS_DC)
+{
+	zval *ret;
+	int   res;
+
+	ret = TWIG_CALL_USER_FUNC_ARRAY(object, functionName, NULL TSRMLS_CC);
+	res = Z_LVAL_P(ret);
+	zval_ptr_dtor(&ret);
+	return res;
+}
+
+static zval *TWIG_GET_STATIC_PROPERTY(zval *class, char *prop_name TSRMLS_DC)
+{
+	zval **tmp_zval;
+	zend_class_entry *ce;
+
+	if (class == NULL || Z_TYPE_P(class) != IS_OBJECT) {
+		return NULL;
+	}
+
+	ce = zend_get_class_entry(class TSRMLS_CC);
+#if PHP_VERSION_ID >= 50400
+	tmp_zval = zend_std_get_static_property(ce, prop_name, strlen(prop_name), 0, NULL TSRMLS_CC);
+#else
+	tmp_zval = zend_std_get_static_property(ce, prop_name, strlen(prop_name), 0 TSRMLS_CC);
+#endif
+	return *tmp_zval;
+}
+
+static zval *TWIG_GET_ARRAY_ELEMENT_ZVAL(zval *class, zval *prop_name TSRMLS_DC)
+{
+	zval **tmp_zval;
+
+	if (class == NULL || Z_TYPE_P(class) != IS_ARRAY) {
+		if (class != NULL && Z_TYPE_P(class) == IS_OBJECT && TWIG_INSTANCE_OF(class, zend_ce_arrayaccess TSRMLS_CC)) {
+			// array access object
+			return TWIG_GET_ARRAYOBJECT_ELEMENT(class, prop_name TSRMLS_CC);
+		}
+		return NULL;
+	}
+
+	switch(Z_TYPE_P(prop_name)) {
+		case IS_NULL:
+			zend_hash_find(HASH_OF(class), "", 1, (void**) &tmp_zval);
+			return *tmp_zval;
+
+		case IS_BOOL:
+		case IS_DOUBLE:
+			convert_to_long(prop_name);
+		case IS_LONG:
+			zend_hash_index_find(HASH_OF(class), Z_LVAL_P(prop_name), (void **) &tmp_zval);
+			return *tmp_zval;
+
+		case IS_STRING:
+			zend_symtable_find(HASH_OF(class), Z_STRVAL_P(prop_name), Z_STRLEN_P(prop_name) + 1, (void**) &tmp_zval);
+			return *tmp_zval;
+	}
+
+	return NULL;
+}
+
+static zval *TWIG_GET_ARRAY_ELEMENT(zval *class, char *prop_name, int prop_name_length TSRMLS_DC)
+{
+	zval **tmp_zval;
+
+	if (class == NULL/* || Z_TYPE_P(class) != IS_ARRAY*/) {
+		return NULL;
+	}
+
+	if (class != NULL && Z_TYPE_P(class) == IS_OBJECT && TWIG_INSTANCE_OF(class, zend_ce_arrayaccess TSRMLS_CC)) {
+		// array access object
+		zval *tmp_name_zval;
+		zval *tmp_ret_zval;
+
+		ALLOC_INIT_ZVAL(tmp_name_zval);
+		ZVAL_STRING(tmp_name_zval, prop_name, 1);
+		tmp_ret_zval = TWIG_GET_ARRAYOBJECT_ELEMENT(class, tmp_name_zval TSRMLS_CC);
+		FREE_DTOR(tmp_name_zval);
+		return tmp_ret_zval;
+	}
+
+	if (zend_symtable_find(HASH_OF(class), prop_name, prop_name_length+1, (void**)&tmp_zval) == SUCCESS) {
+		return *tmp_zval;
+	}
+	return NULL;
+}
+
+static zval *TWIG_PROPERTY(zval *object, zval *propname TSRMLS_DC)
+{
+	zval *tmp = NULL;
+
+	if (Z_OBJ_HT_P(object)->read_property) {
+#if PHP_VERSION_ID >= 50400
+		tmp = Z_OBJ_HT_P(object)->read_property(object, propname, BP_VAR_IS, NULL TSRMLS_CC);
+#else
+		tmp = Z_OBJ_HT_P(object)->read_property(object, propname, BP_VAR_IS TSRMLS_CC);
+#endif
+		if (tmp == EG(uninitialized_zval_ptr)) {
+		        ZVAL_NULL(tmp);
+		}
+	}
+	return tmp;
+}
+
+static int TWIG_HAS_PROPERTY(zval *object, zval *propname TSRMLS_DC)
+{
+	if (Z_OBJ_HT_P(object)->has_property) {
+#if PHP_VERSION_ID >= 50400
+		return Z_OBJ_HT_P(object)->has_property(object, propname, 0, NULL TSRMLS_CC);
+#else
+		return Z_OBJ_HT_P(object)->has_property(object, propname, 0 TSRMLS_CC);
+#endif
+	}
+	return 0;
+}
+
+static int TWIG_HAS_DYNAMIC_PROPERTY(zval *object, char *prop, int prop_len TSRMLS_DC)
+{
+	if (Z_OBJ_HT_P(object)->get_properties) {
+		return zend_hash_quick_exists(
+				Z_OBJ_HT_P(object)->get_properties(object TSRMLS_CC), // the properties hash
+				prop,                                                 // property name
+				prop_len + 1,                                         // property length
+				zend_get_hash_value(prop, prop_len + 1)               // hash value
+			);
+	}
+	return 0;
+}
+
+static zval *TWIG_PROPERTY_CHAR(zval *object, char *propname TSRMLS_DC)
+{
+	zval *tmp_name_zval, *tmp;
+
+	ALLOC_INIT_ZVAL(tmp_name_zval);
+	ZVAL_STRING(tmp_name_zval, propname, 1);
+	tmp = TWIG_PROPERTY(object, tmp_name_zval TSRMLS_CC);
+	FREE_DTOR(tmp_name_zval);
+	return tmp;
+}
+
+static zval *TWIG_CALL_S(zval *object, char *method, char *arg0 TSRMLS_DC)
+{
+	zend_fcall_info fci;
+	zval **args[1];
+	zval *argument;
+	zval *zfunction;
+	zval *retval_ptr;
+
+	MAKE_STD_ZVAL(argument);
+	ZVAL_STRING(argument, arg0, 1);
+	args[0] = &argument;
+
+	MAKE_STD_ZVAL(zfunction);
+	ZVAL_STRING(zfunction, method, 1);
+	fci.size = sizeof(fci);
+	fci.function_table = EG(function_table);
+	fci.function_name = zfunction;
+	fci.symbol_table = NULL;
+#if PHP_VERSION_ID >= 50300
+	fci.object_ptr = object;
+#else
+	fci.object_pp = &object;
+#endif
+	fci.retval_ptr_ptr = &retval_ptr;
+	fci.param_count = 1;
+	fci.params = args;
+	fci.no_separation = 0;
+
+	if (zend_call_function(&fci, NULL TSRMLS_CC) == FAILURE) {
+		FREE_DTOR(zfunction);
+		zval_ptr_dtor(&argument);
+		return 0;
+	}
+	FREE_DTOR(zfunction);
+	zval_ptr_dtor(&argument);
+	return retval_ptr;
+}
+
+static int TWIG_CALL_SB(zval *object, char *method, char *arg0 TSRMLS_DC)
+{
+	zval *retval_ptr;
+	int success;
+
+	retval_ptr = TWIG_CALL_S(object, method, arg0 TSRMLS_CC);
+	success = (retval_ptr && (Z_TYPE_P(retval_ptr) == IS_BOOL) && Z_LVAL_P(retval_ptr));
+
+	if (retval_ptr) {
+		zval_ptr_dtor(&retval_ptr);
+	}
+
+	return success;
+}
+
+static int TWIG_CALL_ZZ(zval *object, char *method, zval *arg1, zval *arg2 TSRMLS_DC)
+{
+	zend_fcall_info fci;
+	zval **args[2];
+	zval *zfunction;
+	zval *retval_ptr;
+	int   success;
+
+	args[0] = &arg1;
+	args[1] = &arg2;
+
+	MAKE_STD_ZVAL(zfunction);
+	ZVAL_STRING(zfunction, method, 1);
+	fci.size = sizeof(fci);
+	fci.function_table = EG(function_table);
+	fci.function_name = zfunction;
+	fci.symbol_table = NULL;
+#if PHP_VERSION_ID >= 50300
+	fci.object_ptr = object;
+#else
+	fci.object_pp = &object;
+#endif
+	fci.retval_ptr_ptr = &retval_ptr;
+	fci.param_count = 2;
+	fci.params = args;
+	fci.no_separation = 0;
+
+	if (zend_call_function(&fci, NULL TSRMLS_CC) == FAILURE) {
+		FREE_DTOR(zfunction);
+		return 0;
+	}
+
+	FREE_DTOR(zfunction);
+
+	success = (retval_ptr && (Z_TYPE_P(retval_ptr) == IS_BOOL) && Z_LVAL_P(retval_ptr));
+	if (retval_ptr) {
+		zval_ptr_dtor(&retval_ptr);
+	}
+
+	return success;
+}
+
+#ifndef Z_SET_REFCOUNT_P
+# define Z_SET_REFCOUNT_P(pz, rc)  pz->refcount = rc
+# define Z_UNSET_ISREF_P(pz) pz->is_ref = 0
+#endif
+
+static void TWIG_NEW(zval *object, char *class, zval *arg0, zval *arg1 TSRMLS_DC)
+{
+	zend_class_entry **pce;
+
+	if (zend_lookup_class(class, strlen(class), &pce TSRMLS_CC) == FAILURE) {
+		return;
+	}
+
+	Z_TYPE_P(object) = IS_OBJECT;
+	object_init_ex(object, *pce);
+	Z_SET_REFCOUNT_P(object, 1);
+	Z_UNSET_ISREF_P(object);
+
+	TWIG_CALL_ZZ(object, "__construct", arg0, arg1 TSRMLS_CC);
+}
+
+static int twig_add_array_key_to_string(void *pDest APPLY_TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key)
+{
+	smart_str *buf;
+	char *joiner;
+	APPLY_TSRMLS_FETCH();
+
+	buf = va_arg(args, smart_str*);
+	joiner = va_arg(args, char*);
+
+	if (buf->len != 0) {
+		smart_str_appends(buf, joiner);
+	}
+
+	if (hash_key->nKeyLength == 0) {
+		smart_str_append_long(buf, (long) hash_key->h);
+	} else {
+		char *key, *tmp_str;
+		int key_len, tmp_len;
+		key = php_addcslashes(hash_key->arKey, hash_key->nKeyLength - 1, &key_len, 0, "'\\", 2 TSRMLS_CC);
+		tmp_str = php_str_to_str_ex(key, key_len, "\0", 1, "' . \"\\0\" . '", 12, &tmp_len, 0, NULL);
+
+		smart_str_appendl(buf, tmp_str, tmp_len);
+		efree(key);
+		efree(tmp_str);
+	}
+
+	return 0;
+}
+
+static char *TWIG_IMPLODE_ARRAY_KEYS(char *joiner, zval *array TSRMLS_DC)
+{
+	smart_str collector = { 0, 0, 0 };
+
+	smart_str_appendl(&collector, "", 0);
+	zend_hash_apply_with_arguments(HASH_OF(array) APPLY_TSRMLS_CC, twig_add_array_key_to_string, 2, &collector, joiner);
+	smart_str_0(&collector);
+
+	return collector.c;
+}
+
+static void TWIG_RUNTIME_ERROR(zval *template TSRMLS_DC, char *message, ...)
+{
+	char *buffer;
+	va_list args;
+	zend_class_entry **pce;
+	zval *ex;
+	zval *constructor;
+	zval *zmessage;
+	zval *lineno;
+	zval *filename_func;
+	zval *filename;
+	zval *constructor_args[3];
+	zval *constructor_retval;
+
+	if (zend_lookup_class("Twig_Error_Runtime", strlen("Twig_Error_Runtime"), &pce TSRMLS_CC) == FAILURE) {
+		return;
+	}
+
+	va_start(args, message);
+	vspprintf(&buffer, 0, message, args);
+	va_end(args);
+
+	MAKE_STD_ZVAL(ex);
+	object_init_ex(ex, *pce);
+
+	// Call Twig_Error constructor
+	MAKE_STD_ZVAL(constructor);
+	MAKE_STD_ZVAL(zmessage);
+	MAKE_STD_ZVAL(lineno);
+	MAKE_STD_ZVAL(filename);
+	MAKE_STD_ZVAL(filename_func);
+	MAKE_STD_ZVAL(constructor_retval);
+
+	ZVAL_STRINGL(constructor, "__construct", sizeof("__construct")-1, 1);
+	ZVAL_STRING(zmessage, buffer, 1);
+	ZVAL_LONG(lineno, -1);
+
+	// Get template filename
+	ZVAL_STRINGL(filename_func, "getTemplateName", sizeof("getTemplateName")-1, 1);
+	call_user_function(EG(function_table), &template, filename_func, filename, 0, 0 TSRMLS_CC);
+
+	constructor_args[0] = zmessage;
+	constructor_args[1] = lineno;
+	constructor_args[2] = filename;
+	call_user_function(EG(function_table), &ex, constructor, constructor_retval, 3, constructor_args TSRMLS_CC);
+
+	zval_ptr_dtor(&constructor_retval);
+	zval_ptr_dtor(&zmessage);
+	zval_ptr_dtor(&lineno);
+	zval_ptr_dtor(&filename);
+	FREE_DTOR(constructor);
+	FREE_DTOR(filename_func);
+	efree(buffer);
+
+	zend_throw_exception_object(ex TSRMLS_CC);
+}
+
+static char *TWIG_GET_CLASS_NAME(zval *object TSRMLS_DC)
+{
+	char *class_name;
+	zend_uint class_name_len;
+
+	if (Z_TYPE_P(object) != IS_OBJECT) {
+		return "";
+	}
+#if PHP_API_VERSION >= 20100412
+	zend_get_object_classname(object, (const char **) &class_name, &class_name_len TSRMLS_CC);
+#else
+	zend_get_object_classname(object, &class_name, &class_name_len TSRMLS_CC);
+#endif
+	return class_name;
+}
+
+static int twig_add_method_to_class(void *pDest APPLY_TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key)
+{
+	zend_class_entry *ce;
+	zval *retval;
+	char *item;
+	size_t item_len;
+	zend_function *mptr = (zend_function *) pDest;
+	APPLY_TSRMLS_FETCH();
+
+	if (!(mptr->common.fn_flags & ZEND_ACC_PUBLIC)) {
+		return 0;
+	}
+
+	ce = *va_arg(args, zend_class_entry**);
+	retval = va_arg(args, zval*);
+
+	item_len = strlen(mptr->common.function_name);
+	item = estrndup(mptr->common.function_name, item_len);
+	php_strtolower(item, item_len);
+
+	if (strcmp("getenvironment", item) == 0) {
+		zend_class_entry **twig_template_ce;
+		if (zend_lookup_class("Twig_Template", strlen("Twig_Template"), &twig_template_ce TSRMLS_CC) == FAILURE) {
+			return 0;
+		}
+		if (instanceof_function(ce, *twig_template_ce TSRMLS_CC)) {
+			return 0;
+		}
+	}
+
+	add_assoc_stringl_ex(retval, item, item_len+1, item, item_len, 0);
+
+	return 0;
+}
+
+static int twig_add_property_to_class(void *pDest APPLY_TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key)
+{
+	zend_class_entry *ce;
+	zval *retval;
+	char *class_name, *prop_name;
+	zend_property_info *pptr = (zend_property_info *) pDest;
+	APPLY_TSRMLS_FETCH();
+
+	if (!(pptr->flags & ZEND_ACC_PUBLIC) || (pptr->flags & ZEND_ACC_STATIC)) {
+		return 0;
+	}
+
+	ce = *va_arg(args, zend_class_entry**);
+	retval = va_arg(args, zval*);
+
+#if PHP_API_VERSION >= 20100412
+	zend_unmangle_property_name(pptr->name, pptr->name_length, (const char **) &class_name, (const char **) &prop_name);
+#else
+	zend_unmangle_property_name(pptr->name, pptr->name_length, &class_name, &prop_name);
+#endif
+
+	add_assoc_string(retval, prop_name, prop_name, 1);
+
+	return 0;
+}
+
+static void twig_add_class_to_cache(zval *cache, zval *object, char *class_name TSRMLS_DC)
+{
+	zval *class_info, *class_methods, *class_properties;
+	zend_class_entry *class_ce;
+
+	class_ce = zend_get_class_entry(object TSRMLS_CC);
+
+	ALLOC_INIT_ZVAL(class_info);
+	ALLOC_INIT_ZVAL(class_methods);
+	ALLOC_INIT_ZVAL(class_properties);
+	array_init(class_info);
+	array_init(class_methods);
+	array_init(class_properties);
+	// add all methods to self::cache[$class]['methods']
+	zend_hash_apply_with_arguments(&class_ce->function_table APPLY_TSRMLS_CC, twig_add_method_to_class, 2, &class_ce, class_methods);
+	zend_hash_apply_with_arguments(&class_ce->properties_info APPLY_TSRMLS_CC, twig_add_property_to_class, 2, &class_ce, class_properties);
+
+	add_assoc_zval(class_info, "methods", class_methods);
+	add_assoc_zval(class_info, "properties", class_properties);
+	add_assoc_zval(cache, class_name, class_info);
+}
+
+/* {{{ proto mixed twig_template_get_attributes(TwigTemplate template, mixed object, mixed item, array arguments, string type, boolean isDefinedTest, boolean ignoreStrictCheck)
+   A C implementation of TwigTemplate::getAttribute() */
+PHP_FUNCTION(twig_template_get_attributes)
+{
+	zval *template;
+	zval *object;
+	char *item;
+	int  item_len;
+	zval *zitem, ztmpitem;
+	zval *arguments = NULL;
+	zval *ret = NULL;
+	char *type = NULL;
+	int   type_len = 0;
+	zend_bool isDefinedTest = 0;
+	zend_bool ignoreStrictCheck = 0;
+	int free_ret = 0;
+	zval *tmp_self_cache;
+	char *class_name = NULL;
+	zval *tmp_class;
+	char *type_name;
+
+	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ozz|asbb", &template, &object, &zitem, &arguments, &type, &type_len, &isDefinedTest, &ignoreStrictCheck) == FAILURE) {
+		return;
+	}
+
+	// convert the item to a string
+	ztmpitem = *zitem;
+	zval_copy_ctor(&ztmpitem);
+	convert_to_string(&ztmpitem);
+	item_len = Z_STRLEN(ztmpitem);
+	item = estrndup(Z_STRVAL(ztmpitem), item_len);
+	zval_dtor(&ztmpitem);
+
+	if (!type) {
+		type = "any";
+	}
+
+/*
+	// array
+	if (Twig_Template::METHOD_CALL !== $type) {
+		$arrayItem = is_bool($item) || is_float($item) ? (int) $item : $item;
+
+		if ((is_array($object) && array_key_exists($arrayItem, $object))
+			|| ($object instanceof ArrayAccess && isset($object[$arrayItem]))
+		) {
+			if ($isDefinedTest) {
+				return true;
+			}
+
+			return $object[$arrayItem];
+		}
+*/
+
+
+	if (strcmp("method", type) != 0) {
+		if ((TWIG_ARRAY_KEY_EXISTS(object, zitem))
+			|| (TWIG_INSTANCE_OF(object, zend_ce_arrayaccess TSRMLS_CC) && TWIG_ISSET_ARRAYOBJECT_ELEMENT(object, zitem TSRMLS_CC))
+		) {
+
+			if (isDefinedTest) {
+				efree(item);
+				RETURN_TRUE;
+			}
+
+			ret = TWIG_GET_ARRAY_ELEMENT_ZVAL(object, zitem TSRMLS_CC);
+
+			if (!ret) {
+				ret = &EG(uninitialized_zval);
+			}
+			RETVAL_ZVAL(ret, 1, 0);
+			if (free_ret) {
+				zval_ptr_dtor(&ret);
+			}
+			efree(item);
+			return;
+		}
+/*
+		if (Twig_Template::ARRAY_CALL === $type) {
+			if ($isDefinedTest) {
+				return false;
+			}
+			if ($ignoreStrictCheck || !$this->env->isStrictVariables()) {
+				return null;
+			}
+*/
+		if (strcmp("array", type) == 0 || Z_TYPE_P(object) != IS_OBJECT) {
+			if (isDefinedTest) {
+				efree(item);
+				RETURN_FALSE;
+			}
+			if (ignoreStrictCheck || !TWIG_CALL_BOOLEAN(TWIG_PROPERTY_CHAR(template, "env" TSRMLS_CC), "isStrictVariables" TSRMLS_CC)) {
+				efree(item);
+				return;
+			}
+/*
+			if ($object instanceof ArrayAccess) {
+				$message = sprintf('Key "%s" in object with ArrayAccess of class "%s" does not exist', $arrayItem, get_class($object));
+			} elseif (is_object($object)) {
+				$message = sprintf('Impossible to access a key "%s" on an object of class "%s" that does not implement ArrayAccess interface', $item, get_class($object));
+			} elseif (is_array($object)) {
+				if (empty($object)) {
+					$message = sprintf('Key "%s" does not exist as the array is empty', $arrayItem);
+				} else {
+					$message = sprintf('Key "%s" for array with keys "%s" does not exist', $arrayItem, implode(', ', array_keys($object)));
+				}
+			} elseif (Twig_Template::ARRAY_CALL === $type) {
+				if (null === $object) {
+					$message = sprintf('Impossible to access a key ("%s") on a null variable', $item);
+				} else {
+					$message = sprintf('Impossible to access a key ("%s") on a %s variable ("%s")', $item, gettype($object), $object);
+				}
+			} elseif (null === $object) {
+				$message = sprintf('Impossible to access an attribute ("%s") on a null variable', $item);
+			} else {
+				$message = sprintf('Impossible to access an attribute ("%s") on a %s variable ("%s")', $item, gettype($object), $object);
+			}
+			throw new Twig_Error_Runtime($message, -1, $this->getTemplateName());
+		}
+	}
+*/
+			if (TWIG_INSTANCE_OF(object, zend_ce_arrayaccess TSRMLS_CC)) {
+				TWIG_RUNTIME_ERROR(template TSRMLS_CC, "Key \"%s\" in object with ArrayAccess of class \"%s\" does not exist", item, TWIG_GET_CLASS_NAME(object TSRMLS_CC));
+			} else if (Z_TYPE_P(object) == IS_OBJECT) {
+				TWIG_RUNTIME_ERROR(template TSRMLS_CC, "Impossible to access a key \"%s\" on an object of class \"%s\" that does not implement ArrayAccess interface", item, TWIG_GET_CLASS_NAME(object TSRMLS_CC));
+			} else if (Z_TYPE_P(object) == IS_ARRAY) {
+				if (0 == zend_hash_num_elements(Z_ARRVAL_P(object))) {
+					TWIG_RUNTIME_ERROR(template TSRMLS_CC, "Key \"%s\" does not exist as the array is empty", item);
+				} else {
+					char *array_keys = TWIG_IMPLODE_ARRAY_KEYS(", ", object TSRMLS_CC);
+					TWIG_RUNTIME_ERROR(template TSRMLS_CC, "Key \"%s\" for array with keys \"%s\" does not exist", item, array_keys);
+					efree(array_keys);
+				}
+			} else {
+				char *type_name = zend_zval_type_name(object);
+				Z_ADDREF_P(object);
+				if (Z_TYPE_P(object) == IS_NULL) {
+					convert_to_string(object);
+					TWIG_RUNTIME_ERROR(template TSRMLS_CC,
+						(strcmp("array", type) == 0)
+							? "Impossible to access a key (\"%s\") on a %s variable"
+							: "Impossible to access an attribute (\"%s\") on a %s variable",
+						item, type_name);
+				} else {
+					convert_to_string(object);
+					TWIG_RUNTIME_ERROR(template TSRMLS_CC,
+						(strcmp("array", type) == 0)
+							? "Impossible to access a key (\"%s\") on a %s variable (\"%s\")"
+							: "Impossible to access an attribute (\"%s\") on a %s variable (\"%s\")",
+						item, type_name, Z_STRVAL_P(object));
+				}
+				zval_ptr_dtor(&object);
+			}
+			efree(item);
+			return;
+		}
+	}
+
+/*
+	if (!is_object($object)) {
+		if ($isDefinedTest) {
+			return false;
+		}
+*/
+
+	if (Z_TYPE_P(object) != IS_OBJECT) {
+		if (isDefinedTest) {
+			efree(item);
+			RETURN_FALSE;
+		}
+/*
+		if ($ignoreStrictCheck || !$this->env->isStrictVariables()) {
+			return null;
+		}
+
+		if (null === $object) {
+			$message = sprintf('Impossible to invoke a method ("%s") on a null variable', $item);
+		} else {
+			$message = sprintf('Impossible to invoke a method ("%s") on a %s variable ("%s")', $item, gettype($object), $object);
+		}
+
+		throw new Twig_Error_Runtime($message, -1, $this->getTemplateName());
+	}
+*/
+		if (ignoreStrictCheck || !TWIG_CALL_BOOLEAN(TWIG_PROPERTY_CHAR(template, "env" TSRMLS_CC), "isStrictVariables" TSRMLS_CC)) {
+			efree(item);
+			return;
+		}
+
+		type_name = zend_zval_type_name(object);
+		Z_ADDREF_P(object);
+		if (Z_TYPE_P(object) == IS_NULL) {
+			convert_to_string_ex(&object);
+
+			TWIG_RUNTIME_ERROR(template TSRMLS_CC, "Impossible to invoke a method (\"%s\") on a %s variable", item, type_name);
+		} else {
+			convert_to_string_ex(&object);
+
+			TWIG_RUNTIME_ERROR(template TSRMLS_CC, "Impossible to invoke a method (\"%s\") on a %s variable (\"%s\")", item, type_name, Z_STRVAL_P(object));
+		}
+
+		zval_ptr_dtor(&object);
+		efree(item);
+		return;
+	}
+/*
+	$class = get_class($object);
+*/
+
+	class_name = TWIG_GET_CLASS_NAME(object TSRMLS_CC);
+	tmp_self_cache = TWIG_GET_STATIC_PROPERTY(template, "cache" TSRMLS_CC);
+	tmp_class = TWIG_GET_ARRAY_ELEMENT(tmp_self_cache, class_name, strlen(class_name) TSRMLS_CC);
+
+	if (!tmp_class) {
+		twig_add_class_to_cache(tmp_self_cache, object, class_name TSRMLS_CC);
+		tmp_class = TWIG_GET_ARRAY_ELEMENT(tmp_self_cache, class_name, strlen(class_name) TSRMLS_CC);
+	}
+	efree(class_name);
+
+/*
+	// object property
+	if (Twig_Template::METHOD_CALL !== $type && !$object instanceof Twig_Template) {
+		if (isset($object->$item) || array_key_exists((string) $item, $object)) {
+			if ($isDefinedTest) {
+				return true;
+			}
+
+			if ($this->env->hasExtension('sandbox')) {
+				$this->env->getExtension('sandbox')->checkPropertyAllowed($object, $item);
+			}
+
+			return $object->$item;
+		}
+	}
+*/
+	if (strcmp("method", type) != 0 && !TWIG_INSTANCE_OF_USERLAND(object, "Twig_Template" TSRMLS_CC)) {
+		zval *tmp_properties, *tmp_item;
+
+		tmp_properties = TWIG_GET_ARRAY_ELEMENT(tmp_class, "properties", strlen("properties") TSRMLS_CC);
+		tmp_item = TWIG_GET_ARRAY_ELEMENT(tmp_properties, item, item_len TSRMLS_CC);
+
+		if (tmp_item || TWIG_HAS_PROPERTY(object, zitem TSRMLS_CC) || TWIG_HAS_DYNAMIC_PROPERTY(object, item, item_len TSRMLS_CC)) {
+			if (isDefinedTest) {
+				efree(item);
+				RETURN_TRUE;
+			}
+			if (TWIG_CALL_SB(TWIG_PROPERTY_CHAR(template, "env" TSRMLS_CC), "hasExtension", "sandbox" TSRMLS_CC)) {
+				TWIG_CALL_ZZ(TWIG_CALL_S(TWIG_PROPERTY_CHAR(template, "env" TSRMLS_CC), "getExtension", "sandbox" TSRMLS_CC), "checkPropertyAllowed", object, zitem TSRMLS_CC);
+			}
+			if (EG(exception)) {
+				efree(item);
+				return;
+			}
+
+			ret = TWIG_PROPERTY(object, zitem TSRMLS_CC);
+			efree(item);
+			RETURN_ZVAL(ret, 1, 0);
+		}
+	}
+/*
+	// object method
+	if (!isset(self::$cache[$class]['methods'])) {
+		if ($object instanceof self) {
+			$ref = new ReflectionClass($class);
+			$methods = array();
+
+			foreach ($ref->getMethods(ReflectionMethod::IS_PUBLIC) as $refMethod) {
+				$methodName = strtolower($refMethod->name);
+
+				// Accessing the environment from templates is forbidden to prevent untrusted changes to the environment
+				if ('getenvironment' !== $methodName) {
+					$methods[$methodName] = true;
+				}
+			}
+
+			self::$cache[$class]['methods'] = $methods;
+        } else {
+			self::$cache[$class]['methods'] = array_change_key_case(array_flip(get_class_methods($object)));
+        }
+	}
+
+	$call = false;
+	$lcItem = strtolower($item);
+	if (isset(self::$cache[$class]['methods'][$lcItem])) {
+		$method = (string) $item;
+	} elseif (isset(self::$cache[$class]['methods']['get'.$lcItem])) {
+		$method = 'get'.$item;
+	} elseif (isset(self::$cache[$class]['methods']['is'.$lcItem])) {
+		$method = 'is'.$item;
+	} elseif (isset(self::$cache[$class]['methods']['__call'])) {
+		$method = (string) $item;
+		$call = true;
+*/
+	{
+		int call = 0;
+		char *lcItem = TWIG_STRTOLOWER(item, item_len);
+		int   lcItem_length;
+		char *method = NULL;
+		char *tmp_method_name_get;
+		char *tmp_method_name_is;
+		zval *zmethod;
+		zval *tmp_methods;
+
+		lcItem_length = strlen(lcItem);
+		tmp_method_name_get = emalloc(4 + lcItem_length);
+		tmp_method_name_is  = emalloc(3 + lcItem_length);
+
+		sprintf(tmp_method_name_get, "get%s", lcItem);
+		sprintf(tmp_method_name_is, "is%s", lcItem);
+
+		tmp_methods = TWIG_GET_ARRAY_ELEMENT(tmp_class, "methods", strlen("methods") TSRMLS_CC);
+
+		if (TWIG_GET_ARRAY_ELEMENT(tmp_methods, lcItem, lcItem_length TSRMLS_CC)) {
+			method = item;
+		} else if (TWIG_GET_ARRAY_ELEMENT(tmp_methods, tmp_method_name_get, lcItem_length + 3 TSRMLS_CC)) {
+			method = tmp_method_name_get;
+		} else if (TWIG_GET_ARRAY_ELEMENT(tmp_methods, tmp_method_name_is, lcItem_length + 2 TSRMLS_CC)) {
+			method = tmp_method_name_is;
+		} else if (TWIG_GET_ARRAY_ELEMENT(tmp_methods, "__call", 6 TSRMLS_CC)) {
+			method = item;
+			call = 1;
+/*
+	} else {
+		if ($isDefinedTest) {
+			return false;
+		}
+
+		if ($ignoreStrictCheck || !$this->env->isStrictVariables()) {
+			return null;
+		}
+
+		throw new Twig_Error_Runtime(sprintf('Method "%s" for object "%s" does not exist', $item, get_class($object)), -1, $this->getTemplateName());
+	}
+
+	if ($isDefinedTest) {
+		return true;
+	}
+*/
+		} else {
+			efree(tmp_method_name_get);
+			efree(tmp_method_name_is);
+			efree(lcItem);
+
+			if (isDefinedTest) {
+				efree(item);
+				RETURN_FALSE;
+			}
+			if (ignoreStrictCheck || !TWIG_CALL_BOOLEAN(TWIG_PROPERTY_CHAR(template, "env" TSRMLS_CC), "isStrictVariables" TSRMLS_CC)) {
+				efree(item);
+				return;
+			}
+			TWIG_RUNTIME_ERROR(template TSRMLS_CC, "Method \"%s\" for object \"%s\" does not exist", item, TWIG_GET_CLASS_NAME(object TSRMLS_CC));
+			efree(item);
+			return;
+		}
+
+		if (isDefinedTest) {
+			efree(tmp_method_name_get);
+			efree(tmp_method_name_is);
+			efree(lcItem);efree(item);
+			RETURN_TRUE;
+		}
+/*
+	if ($this->env->hasExtension('sandbox')) {
+		$this->env->getExtension('sandbox')->checkMethodAllowed($object, $method);
+	}
+*/
+		MAKE_STD_ZVAL(zmethod);
+		ZVAL_STRING(zmethod, method, 1);
+		if (TWIG_CALL_SB(TWIG_PROPERTY_CHAR(template, "env" TSRMLS_CC), "hasExtension", "sandbox" TSRMLS_CC)) {
+			TWIG_CALL_ZZ(TWIG_CALL_S(TWIG_PROPERTY_CHAR(template, "env" TSRMLS_CC), "getExtension", "sandbox" TSRMLS_CC), "checkMethodAllowed", object, zmethod TSRMLS_CC);
+		}
+		zval_ptr_dtor(&zmethod);
+		if (EG(exception)) {
+			efree(tmp_method_name_get);
+			efree(tmp_method_name_is);
+			efree(lcItem);efree(item);
+			return;
+		}
+/*
+	// Some objects throw exceptions when they have __call, and the method we try
+	// to call is not supported. If ignoreStrictCheck is true, we should return null.
+	try {
+	    $ret = call_user_func_array(array($object, $method), $arguments);
+	} catch (BadMethodCallException $e) {
+	    if ($call && ($ignoreStrictCheck || !$this->env->isStrictVariables())) {
+	        return null;
+	    }
+	    throw $e;
+	}
+*/
+		ret = TWIG_CALL_USER_FUNC_ARRAY(object, method, arguments TSRMLS_CC);
+		if (EG(exception) && TWIG_INSTANCE_OF(EG(exception), spl_ce_BadMethodCallException TSRMLS_CC)) {
+			if (ignoreStrictCheck || !TWIG_CALL_BOOLEAN(TWIG_PROPERTY_CHAR(template, "env" TSRMLS_CC), "isStrictVariables" TSRMLS_CC)) {
+				efree(tmp_method_name_get);
+				efree(tmp_method_name_is);
+				efree(lcItem);efree(item);
+				zend_clear_exception(TSRMLS_C);
+				return;
+			}
+		}
+		free_ret = 1;
+		efree(tmp_method_name_get);
+		efree(tmp_method_name_is);
+		efree(lcItem);
+	}
+/*
+	// useful when calling a template method from a template
+	// this is not supported but unfortunately heavily used in the Symfony profiler
+	if ($object instanceof Twig_TemplateInterface) {
+		return $ret === '' ? '' : new Twig_Markup($ret, $this->env->getCharset());
+	}
+
+	return $ret;
+*/
+	efree(item);
+	// ret can be null, if e.g. the called method throws an exception
+	if (ret) {
+		if (TWIG_INSTANCE_OF_USERLAND(object, "Twig_TemplateInterface" TSRMLS_CC)) {
+			if (Z_STRLEN_P(ret) != 0) {
+				zval *charset = TWIG_CALL_USER_FUNC_ARRAY(TWIG_PROPERTY_CHAR(template, "env" TSRMLS_CC), "getCharset", NULL TSRMLS_CC);
+				TWIG_NEW(return_value, "Twig_Markup", ret, charset TSRMLS_CC);
+				zval_ptr_dtor(&charset);
+				if (ret) {
+					zval_ptr_dtor(&ret);
+				}
+				return;
+			}
+		}
+
+		RETVAL_ZVAL(ret, 1, 0);
+		if (free_ret) {
+			zval_ptr_dtor(&ret);
+		}
+	}
+}
diff --git a/vendor/twig/twig/lib/Twig/Autoloader.php b/vendor/twig/twig/lib/Twig/Autoloader.php
new file mode 100644
index 000000000..14016b296
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Autoloader.php
@@ -0,0 +1,54 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+@trigger_error('The Twig_Autoloader class is deprecated since version 1.21 and will be removed in 2.0. Use Composer instead.', E_USER_DEPRECATED);
+
+/**
+ * Autoloads Twig classes.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since 1.21 and will be removed in 2.0. Use Composer instead. 2.0.
+ */
+class Twig_Autoloader
+{
+    /**
+     * Registers Twig_Autoloader as an SPL autoloader.
+     *
+     * @param bool $prepend Whether to prepend the autoloader or not.
+     */
+    public static function register($prepend = false)
+    {
+        @trigger_error('Using Twig_Autoloader is deprecated since version 1.21. Use Composer instead.', E_USER_DEPRECATED);
+
+        if (PHP_VERSION_ID < 50300) {
+            spl_autoload_register(array(__CLASS__, 'autoload'));
+        } else {
+            spl_autoload_register(array(__CLASS__, 'autoload'), true, $prepend);
+        }
+    }
+
+    /**
+     * Handles autoloading of classes.
+     *
+     * @param string $class A class name.
+     */
+    public static function autoload($class)
+    {
+        if (0 !== strpos($class, 'Twig')) {
+            return;
+        }
+
+        if (is_file($file = dirname(__FILE__).'/../'.str_replace(array('_', "\0"), array('/', ''), $class).'.php')) {
+            require $file;
+        }
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/BaseNodeVisitor.php b/vendor/twig/twig/lib/Twig/BaseNodeVisitor.php
new file mode 100644
index 000000000..3c6ef6626
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/BaseNodeVisitor.php
@@ -0,0 +1,62 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Twig_BaseNodeVisitor can be used to make node visitors compatible with Twig 1.x and 2.x.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+abstract class Twig_BaseNodeVisitor implements Twig_NodeVisitorInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    final public function enterNode(Twig_NodeInterface $node, Twig_Environment $env)
+    {
+        if (!$node instanceof Twig_Node) {
+            throw new LogicException('Twig_BaseNodeVisitor only supports Twig_Node instances.');
+        }
+
+        return $this->doEnterNode($node, $env);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    final public function leaveNode(Twig_NodeInterface $node, Twig_Environment $env)
+    {
+        if (!$node instanceof Twig_Node) {
+            throw new LogicException('Twig_BaseNodeVisitor only supports Twig_Node instances.');
+        }
+
+        return $this->doLeaveNode($node, $env);
+    }
+
+    /**
+     * Called before child nodes are visited.
+     *
+     * @param Twig_Node        $node The node to visit
+     * @param Twig_Environment $env  The Twig environment instance
+     *
+     * @return Twig_Node The modified node
+     */
+    abstract protected function doEnterNode(Twig_Node $node, Twig_Environment $env);
+
+    /**
+     * Called after child nodes are visited.
+     *
+     * @param Twig_Node        $node The node to visit
+     * @param Twig_Environment $env  The Twig environment instance
+     *
+     * @return Twig_Node|false The modified node or false if the node must be removed
+     */
+    abstract protected function doLeaveNode(Twig_Node $node, Twig_Environment $env);
+}
diff --git a/vendor/twig/twig/lib/Twig/Cache/Filesystem.php b/vendor/twig/twig/lib/Twig/Cache/Filesystem.php
new file mode 100644
index 000000000..bebc2bfad
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Cache/Filesystem.php
@@ -0,0 +1,96 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2015 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Implements a cache on the filesystem.
+ *
+ * @author Andrew Tch <andrew@noop.lv>
+ */
+class Twig_Cache_Filesystem implements Twig_CacheInterface
+{
+    const FORCE_BYTECODE_INVALIDATION = 1;
+
+    private $directory;
+    private $options;
+
+    /**
+     * @param $directory string The root cache directory
+     * @param $options   int    A set of options
+     */
+    public function __construct($directory, $options = 0)
+    {
+        $this->directory = rtrim($directory, '\/').'/';
+        $this->options = $options;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function generateKey($name, $className)
+    {
+        $hash = hash('sha256', $className);
+
+        return $this->directory.$hash[0].$hash[1].'/'.$hash.'.php';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function load($key)
+    {
+        @include_once $key;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function write($key, $content)
+    {
+        $dir = dirname($key);
+        if (!is_dir($dir)) {
+            if (false === @mkdir($dir, 0777, true) && !is_dir($dir)) {
+                throw new RuntimeException(sprintf('Unable to create the cache directory (%s).', $dir));
+            }
+        } elseif (!is_writable($dir)) {
+            throw new RuntimeException(sprintf('Unable to write in the cache directory (%s).', $dir));
+        }
+
+        $tmpFile = tempnam($dir, basename($key));
+        if (false !== @file_put_contents($tmpFile, $content) && @rename($tmpFile, $key)) {
+            @chmod($key, 0666 & ~umask());
+
+            if (self::FORCE_BYTECODE_INVALIDATION == ($this->options & self::FORCE_BYTECODE_INVALIDATION)) {
+                // Compile cached file into bytecode cache
+                if (function_exists('opcache_invalidate')) {
+                    opcache_invalidate($key, true);
+                } elseif (function_exists('apc_compile_file')) {
+                    apc_compile_file($key);
+                }
+            }
+
+            return;
+        }
+
+        throw new RuntimeException(sprintf('Failed to write cache file "%s".', $key));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getTimestamp($key)
+    {
+        if (!file_exists($key)) {
+            return 0;
+        }
+
+        return (int) @filemtime($key);
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Cache/Null.php b/vendor/twig/twig/lib/Twig/Cache/Null.php
new file mode 100644
index 000000000..fde8c8082
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Cache/Null.php
@@ -0,0 +1,48 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2015 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Implements a no-cache strategy.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Cache_Null implements Twig_CacheInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function generateKey($name, $className)
+    {
+        return '';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function write($key, $content)
+    {
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function load($key)
+    {
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getTimestamp($key)
+    {
+        return 0;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/CacheInterface.php b/vendor/twig/twig/lib/Twig/CacheInterface.php
new file mode 100644
index 000000000..9b17e0f42
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/CacheInterface.php
@@ -0,0 +1,56 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2015 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Interface implemented by cache classes.
+ *
+ * It is highly recommended to always store templates on the filesystem to
+ * benefit from the PHP opcode cache. This interface is mostly useful if you
+ * need to implement a custom strategy for storing templates on the filesystem.
+ *
+ * @author Andrew Tch <andrew@noop.lv>
+ */
+interface Twig_CacheInterface
+{
+    /**
+     * Generates a cache key for the given template class name.
+     *
+     * @param string $name      The template name
+     * @param string $className The template class name
+     *
+     * @return string
+     */
+    public function generateKey($name, $className);
+
+    /**
+     * Writes the compiled template to cache.
+     *
+     * @param string $key     The cache key
+     * @param string $content The template representation as a PHP class
+     */
+    public function write($key, $content);
+
+    /**
+     * Loads a template from the cache.
+     *
+     * @param string $key The cache key
+     */
+    public function load($key);
+
+    /**
+     * Returns the modification timestamp of a key.
+     *
+     * @param string $key The cache key
+     *
+     * @return int
+     */
+    public function getTimestamp($key);
+}
diff --git a/vendor/twig/twig/lib/Twig/Compiler.php b/vendor/twig/twig/lib/Twig/Compiler.php
new file mode 100644
index 000000000..abea3aafe
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Compiler.php
@@ -0,0 +1,277 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Compiles a node to PHP code.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Compiler implements Twig_CompilerInterface
+{
+    protected $lastLine;
+    protected $source;
+    protected $indentation;
+    protected $env;
+    protected $debugInfo = array();
+    protected $sourceOffset;
+    protected $sourceLine;
+    protected $filename;
+
+    /**
+     * Constructor.
+     *
+     * @param Twig_Environment $env The twig environment instance
+     */
+    public function __construct(Twig_Environment $env)
+    {
+        $this->env = $env;
+    }
+
+    public function getFilename()
+    {
+        return $this->filename;
+    }
+
+    /**
+     * Returns the environment instance related to this compiler.
+     *
+     * @return Twig_Environment The environment instance
+     */
+    public function getEnvironment()
+    {
+        return $this->env;
+    }
+
+    /**
+     * Gets the current PHP code after compilation.
+     *
+     * @return string The PHP code
+     */
+    public function getSource()
+    {
+        return $this->source;
+    }
+
+    /**
+     * Compiles a node.
+     *
+     * @param Twig_NodeInterface $node        The node to compile
+     * @param int                $indentation The current indentation
+     *
+     * @return Twig_Compiler The current compiler instance
+     */
+    public function compile(Twig_NodeInterface $node, $indentation = 0)
+    {
+        $this->lastLine = null;
+        $this->source = '';
+        $this->debugInfo = array();
+        $this->sourceOffset = 0;
+        // source code starts at 1 (as we then increment it when we encounter new lines)
+        $this->sourceLine = 1;
+        $this->indentation = $indentation;
+
+        if ($node instanceof Twig_Node_Module) {
+            $this->filename = $node->getAttribute('filename');
+        }
+
+        $node->compile($this);
+
+        return $this;
+    }
+
+    public function subcompile(Twig_NodeInterface $node, $raw = true)
+    {
+        if (false === $raw) {
+            $this->addIndentation();
+        }
+
+        $node->compile($this);
+
+        return $this;
+    }
+
+    /**
+     * Adds a raw string to the compiled code.
+     *
+     * @param string $string The string
+     *
+     * @return Twig_Compiler The current compiler instance
+     */
+    public function raw($string)
+    {
+        $this->source .= $string;
+
+        return $this;
+    }
+
+    /**
+     * Writes a string to the compiled code by adding indentation.
+     *
+     * @return Twig_Compiler The current compiler instance
+     */
+    public function write()
+    {
+        $strings = func_get_args();
+        foreach ($strings as $string) {
+            $this->addIndentation();
+            $this->source .= $string;
+        }
+
+        return $this;
+    }
+
+    /**
+     * Appends an indentation to the current PHP code after compilation.
+     *
+     * @return Twig_Compiler The current compiler instance
+     */
+    public function addIndentation()
+    {
+        $this->source .= str_repeat(' ', $this->indentation * 4);
+
+        return $this;
+    }
+
+    /**
+     * Adds a quoted string to the compiled code.
+     *
+     * @param string $value The string
+     *
+     * @return Twig_Compiler The current compiler instance
+     */
+    public function string($value)
+    {
+        $this->source .= sprintf('"%s"', addcslashes($value, "\0\t\"\$\\"));
+
+        return $this;
+    }
+
+    /**
+     * Returns a PHP representation of a given value.
+     *
+     * @param mixed $value The value to convert
+     *
+     * @return Twig_Compiler The current compiler instance
+     */
+    public function repr($value)
+    {
+        if (is_int($value) || is_float($value)) {
+            if (false !== $locale = setlocale(LC_NUMERIC, 0)) {
+                setlocale(LC_NUMERIC, 'C');
+            }
+
+            $this->raw($value);
+
+            if (false !== $locale) {
+                setlocale(LC_NUMERIC, $locale);
+            }
+        } elseif (null === $value) {
+            $this->raw('null');
+        } elseif (is_bool($value)) {
+            $this->raw($value ? 'true' : 'false');
+        } elseif (is_array($value)) {
+            $this->raw('array(');
+            $first = true;
+            foreach ($value as $key => $v) {
+                if (!$first) {
+                    $this->raw(', ');
+                }
+                $first = false;
+                $this->repr($key);
+                $this->raw(' => ');
+                $this->repr($v);
+            }
+            $this->raw(')');
+        } else {
+            $this->string($value);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Adds debugging information.
+     *
+     * @param Twig_NodeInterface $node The related twig node
+     *
+     * @return Twig_Compiler The current compiler instance
+     */
+    public function addDebugInfo(Twig_NodeInterface $node)
+    {
+        if ($node->getLine() != $this->lastLine) {
+            $this->write(sprintf("// line %d\n", $node->getLine()));
+
+            // when mbstring.func_overload is set to 2
+            // mb_substr_count() replaces substr_count()
+            // but they have different signatures!
+            if (((int) ini_get('mbstring.func_overload')) & 2) {
+                // this is much slower than the "right" version
+                $this->sourceLine += mb_substr_count(mb_substr($this->source, $this->sourceOffset), "\n");
+            } else {
+                $this->sourceLine += substr_count($this->source, "\n", $this->sourceOffset);
+            }
+            $this->sourceOffset = strlen($this->source);
+            $this->debugInfo[$this->sourceLine] = $node->getLine();
+
+            $this->lastLine = $node->getLine();
+        }
+
+        return $this;
+    }
+
+    public function getDebugInfo()
+    {
+        ksort($this->debugInfo);
+
+        return $this->debugInfo;
+    }
+
+    /**
+     * Indents the generated code.
+     *
+     * @param int $step The number of indentation to add
+     *
+     * @return Twig_Compiler The current compiler instance
+     */
+    public function indent($step = 1)
+    {
+        $this->indentation += $step;
+
+        return $this;
+    }
+
+    /**
+     * Outdents the generated code.
+     *
+     * @param int $step The number of indentation to remove
+     *
+     * @return Twig_Compiler The current compiler instance
+     *
+     * @throws LogicException When trying to outdent too much so the indentation would become negative
+     */
+    public function outdent($step = 1)
+    {
+        // can't outdent by more steps than the current indentation level
+        if ($this->indentation < $step) {
+            throw new LogicException('Unable to call outdent() as the indentation would become negative');
+        }
+
+        $this->indentation -= $step;
+
+        return $this;
+    }
+
+    public function getVarName()
+    {
+        return sprintf('__internal_%s', hash('sha256', uniqid(mt_rand(), true), false));
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/CompilerInterface.php b/vendor/twig/twig/lib/Twig/CompilerInterface.php
new file mode 100644
index 000000000..272c7672f
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/CompilerInterface.php
@@ -0,0 +1,36 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Interface implemented by compiler classes.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since 1.12 (to be removed in 3.0)
+ */
+interface Twig_CompilerInterface
+{
+    /**
+     * Compiles a node.
+     *
+     * @param Twig_NodeInterface $node The node to compile
+     *
+     * @return Twig_CompilerInterface The current compiler instance
+     */
+    public function compile(Twig_NodeInterface $node);
+
+    /**
+     * Gets the current PHP code after compilation.
+     *
+     * @return string The PHP code
+     */
+    public function getSource();
+}
diff --git a/vendor/twig/twig/lib/Twig/Environment.php b/vendor/twig/twig/lib/Twig/Environment.php
new file mode 100644
index 000000000..4100ef580
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Environment.php
@@ -0,0 +1,1381 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Stores the Twig configuration.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Environment
+{
+    const VERSION = '1.24.0';
+
+    protected $charset;
+    protected $loader;
+    protected $debug;
+    protected $autoReload;
+    protected $cache;
+    protected $lexer;
+    protected $parser;
+    protected $compiler;
+    protected $baseTemplateClass;
+    protected $extensions;
+    protected $parsers;
+    protected $visitors;
+    protected $filters;
+    protected $tests;
+    protected $functions;
+    protected $globals;
+    protected $runtimeInitialized = false;
+    protected $extensionInitialized = false;
+    protected $loadedTemplates;
+    protected $strictVariables;
+    protected $unaryOperators;
+    protected $binaryOperators;
+    protected $templateClassPrefix = '__TwigTemplate_';
+    protected $functionCallbacks = array();
+    protected $filterCallbacks = array();
+    protected $staging;
+
+    private $originalCache;
+    private $bcWriteCacheFile = false;
+    private $bcGetCacheFilename = false;
+    private $lastModifiedExtension = 0;
+
+    /**
+     * Constructor.
+     *
+     * Available options:
+     *
+     *  * debug: When set to true, it automatically set "auto_reload" to true as
+     *           well (default to false).
+     *
+     *  * charset: The charset used by the templates (default to UTF-8).
+     *
+     *  * base_template_class: The base template class to use for generated
+     *                         templates (default to Twig_Template).
+     *
+     *  * cache: An absolute path where to store the compiled templates,
+     *           a Twig_Cache_Interface implementation,
+     *           or false to disable compilation cache (default).
+     *
+     *  * auto_reload: Whether to reload the template if the original source changed.
+     *                 If you don't provide the auto_reload option, it will be
+     *                 determined automatically based on the debug value.
+     *
+     *  * strict_variables: Whether to ignore invalid variables in templates
+     *                      (default to false).
+     *
+     *  * autoescape: Whether to enable auto-escaping (default to html):
+     *                  * false: disable auto-escaping
+     *                  * true: equivalent to html
+     *                  * html, js: set the autoescaping to one of the supported strategies
+     *                  * filename: set the autoescaping strategy based on the template filename extension
+     *                  * PHP callback: a PHP callback that returns an escaping strategy based on the template "filename"
+     *
+     *  * optimizations: A flag that indicates which optimizations to apply
+     *                   (default to -1 which means that all optimizations are enabled;
+     *                   set it to 0 to disable).
+     *
+     * @param Twig_LoaderInterface $loader  A Twig_LoaderInterface instance
+     * @param array                $options An array of options
+     */
+    public function __construct(Twig_LoaderInterface $loader = null, $options = array())
+    {
+        if (null !== $loader) {
+            $this->setLoader($loader);
+        } else {
+            @trigger_error('Not passing a Twig_LoaderInterface as the first constructor argument of Twig_Environment is deprecated since version 1.21.', E_USER_DEPRECATED);
+        }
+
+        $options = array_merge(array(
+            'debug' => false,
+            'charset' => 'UTF-8',
+            'base_template_class' => 'Twig_Template',
+            'strict_variables' => false,
+            'autoescape' => 'html',
+            'cache' => false,
+            'auto_reload' => null,
+            'optimizations' => -1,
+        ), $options);
+
+        $this->debug = (bool) $options['debug'];
+        $this->charset = strtoupper($options['charset']);
+        $this->baseTemplateClass = $options['base_template_class'];
+        $this->autoReload = null === $options['auto_reload'] ? $this->debug : (bool) $options['auto_reload'];
+        $this->strictVariables = (bool) $options['strict_variables'];
+        $this->setCache($options['cache']);
+
+        $this->addExtension(new Twig_Extension_Core());
+        $this->addExtension(new Twig_Extension_Escaper($options['autoescape']));
+        $this->addExtension(new Twig_Extension_Optimizer($options['optimizations']));
+        $this->staging = new Twig_Extension_Staging();
+
+        // For BC
+        if (is_string($this->originalCache)) {
+            $r = new ReflectionMethod($this, 'writeCacheFile');
+            if ($r->getDeclaringClass()->getName() !== __CLASS__) {
+                @trigger_error('The Twig_Environment::writeCacheFile method is deprecated since version 1.22 and will be removed in Twig 2.0.', E_USER_DEPRECATED);
+
+                $this->bcWriteCacheFile = true;
+            }
+
+            $r = new ReflectionMethod($this, 'getCacheFilename');
+            if ($r->getDeclaringClass()->getName() !== __CLASS__) {
+                @trigger_error('The Twig_Environment::getCacheFilename method is deprecated since version 1.22 and will be removed in Twig 2.0.', E_USER_DEPRECATED);
+
+                $this->bcGetCacheFilename = true;
+            }
+        }
+    }
+
+    /**
+     * Gets the base template class for compiled templates.
+     *
+     * @return string The base template class name
+     */
+    public function getBaseTemplateClass()
+    {
+        return $this->baseTemplateClass;
+    }
+
+    /**
+     * Sets the base template class for compiled templates.
+     *
+     * @param string $class The base template class name
+     */
+    public function setBaseTemplateClass($class)
+    {
+        $this->baseTemplateClass = $class;
+    }
+
+    /**
+     * Enables debugging mode.
+     */
+    public function enableDebug()
+    {
+        $this->debug = true;
+    }
+
+    /**
+     * Disables debugging mode.
+     */
+    public function disableDebug()
+    {
+        $this->debug = false;
+    }
+
+    /**
+     * Checks if debug mode is enabled.
+     *
+     * @return bool true if debug mode is enabled, false otherwise
+     */
+    public function isDebug()
+    {
+        return $this->debug;
+    }
+
+    /**
+     * Enables the auto_reload option.
+     */
+    public function enableAutoReload()
+    {
+        $this->autoReload = true;
+    }
+
+    /**
+     * Disables the auto_reload option.
+     */
+    public function disableAutoReload()
+    {
+        $this->autoReload = false;
+    }
+
+    /**
+     * Checks if the auto_reload option is enabled.
+     *
+     * @return bool true if auto_reload is enabled, false otherwise
+     */
+    public function isAutoReload()
+    {
+        return $this->autoReload;
+    }
+
+    /**
+     * Enables the strict_variables option.
+     */
+    public function enableStrictVariables()
+    {
+        $this->strictVariables = true;
+    }
+
+    /**
+     * Disables the strict_variables option.
+     */
+    public function disableStrictVariables()
+    {
+        $this->strictVariables = false;
+    }
+
+    /**
+     * Checks if the strict_variables option is enabled.
+     *
+     * @return bool true if strict_variables is enabled, false otherwise
+     */
+    public function isStrictVariables()
+    {
+        return $this->strictVariables;
+    }
+
+    /**
+     * Gets the current cache implementation.
+     *
+     * @param bool $original Whether to return the original cache option or the real cache instance
+     *
+     * @return Twig_CacheInterface|string|false A Twig_CacheInterface implementation,
+     *                                          an absolute path to the compiled templates,
+     *                                          or false to disable cache
+     */
+    public function getCache($original = true)
+    {
+        return $original ? $this->originalCache : $this->cache;
+    }
+
+    /**
+     * Sets the current cache implementation.
+     *
+     * @param Twig_CacheInterface|string|false $cache A Twig_CacheInterface implementation,
+     *                                                an absolute path to the compiled templates,
+     *                                                or false to disable cache
+     */
+    public function setCache($cache)
+    {
+        if (is_string($cache)) {
+            $this->originalCache = $cache;
+            $this->cache = new Twig_Cache_Filesystem($cache);
+        } elseif (false === $cache) {
+            $this->originalCache = $cache;
+            $this->cache = new Twig_Cache_Null();
+        } elseif (null === $cache) {
+            @trigger_error('Using "null" as the cache strategy is deprecated since version 1.23 and will be removed in Twig 2.0.', E_USER_DEPRECATED);
+            $this->originalCache = false;
+            $this->cache = new Twig_Cache_Null();
+        } elseif ($cache instanceof Twig_CacheInterface) {
+            $this->originalCache = $this->cache = $cache;
+        } else {
+            throw new LogicException(sprintf('Cache can only be a string, false, or a Twig_CacheInterface implementation.'));
+        }
+    }
+
+    /**
+     * Gets the cache filename for a given template.
+     *
+     * @param string $name The template name
+     *
+     * @return string|false The cache file name or false when caching is disabled
+     *
+     * @deprecated since 1.22 (to be removed in 2.0)
+     */
+    public function getCacheFilename($name)
+    {
+        @trigger_error(sprintf('The %s method is deprecated since version 1.22 and will be removed in Twig 2.0.', __METHOD__), E_USER_DEPRECATED);
+
+        $key = $this->cache->generateKey($name, $this->getTemplateClass($name));
+
+        return !$key ? false : $key;
+    }
+
+    /**
+     * Gets the template class associated with the given string.
+     *
+     * The generated template class is based on the following parameters:
+     *
+     *  * The cache key for the given template;
+     *  * The currently enabled extensions;
+     *  * Whether the Twig C extension is available or not.
+     *
+     * @param string   $name  The name for which to calculate the template class name
+     * @param int|null $index The index if it is an embedded template
+     *
+     * @return string The template class name
+     */
+    public function getTemplateClass($name, $index = null)
+    {
+        $key = $this->getLoader()->getCacheKey($name);
+        $key .= json_encode(array_keys($this->extensions));
+        $key .= function_exists('twig_template_get_attributes');
+
+        return $this->templateClassPrefix.hash('sha256', $key).(null === $index ? '' : '_'.$index);
+    }
+
+    /**
+     * Gets the template class prefix.
+     *
+     * @return string The template class prefix
+     *
+     * @deprecated since 1.22 (to be removed in 2.0)
+     */
+    public function getTemplateClassPrefix()
+    {
+        @trigger_error(sprintf('The %s method is deprecated since version 1.22 and will be removed in Twig 2.0.', __METHOD__), E_USER_DEPRECATED);
+
+        return $this->templateClassPrefix;
+    }
+
+    /**
+     * Renders a template.
+     *
+     * @param string $name    The template name
+     * @param array  $context An array of parameters to pass to the template
+     *
+     * @return string The rendered template
+     *
+     * @throws Twig_Error_Loader  When the template cannot be found
+     * @throws Twig_Error_Syntax  When an error occurred during compilation
+     * @throws Twig_Error_Runtime When an error occurred during rendering
+     */
+    public function render($name, array $context = array())
+    {
+        return $this->loadTemplate($name)->render($context);
+    }
+
+    /**
+     * Displays a template.
+     *
+     * @param string $name    The template name
+     * @param array  $context An array of parameters to pass to the template
+     *
+     * @throws Twig_Error_Loader  When the template cannot be found
+     * @throws Twig_Error_Syntax  When an error occurred during compilation
+     * @throws Twig_Error_Runtime When an error occurred during rendering
+     */
+    public function display($name, array $context = array())
+    {
+        $this->loadTemplate($name)->display($context);
+    }
+
+    /**
+     * Loads a template by name.
+     *
+     * @param string $name  The template name
+     * @param int    $index The index if it is an embedded template
+     *
+     * @return Twig_TemplateInterface A template instance representing the given template name
+     *
+     * @throws Twig_Error_Loader When the template cannot be found
+     * @throws Twig_Error_Syntax When an error occurred during compilation
+     */
+    public function loadTemplate($name, $index = null)
+    {
+        $cls = $this->getTemplateClass($name, $index);
+
+        if (isset($this->loadedTemplates[$cls])) {
+            return $this->loadedTemplates[$cls];
+        }
+
+        if (!class_exists($cls, false)) {
+            if ($this->bcGetCacheFilename) {
+                $key = $this->getCacheFilename($name);
+            } else {
+                $key = $this->cache->generateKey($name, $cls);
+            }
+
+            if (!$this->isAutoReload() || $this->isTemplateFresh($name, $this->cache->getTimestamp($key))) {
+                $this->cache->load($key);
+            }
+
+            if (!class_exists($cls, false)) {
+                $content = $this->compileSource($this->getLoader()->getSource($name), $name);
+                if ($this->bcWriteCacheFile) {
+                    $this->writeCacheFile($key, $content);
+                } else {
+                    $this->cache->write($key, $content);
+                }
+
+                eval('?>'.$content);
+            }
+        }
+
+        if (!$this->runtimeInitialized) {
+            $this->initRuntime();
+        }
+
+        return $this->loadedTemplates[$cls] = new $cls($this);
+    }
+
+    /**
+     * Creates a template from source.
+     *
+     * This method should not be used as a generic way to load templates.
+     *
+     * @param string $template The template name
+     *
+     * @return Twig_Template A template instance representing the given template name
+     *
+     * @throws Twig_Error_Loader When the template cannot be found
+     * @throws Twig_Error_Syntax When an error occurred during compilation
+     */
+    public function createTemplate($template)
+    {
+        $name = sprintf('__string_template__%s', hash('sha256', uniqid(mt_rand(), true), false));
+
+        $loader = new Twig_Loader_Chain(array(
+            new Twig_Loader_Array(array($name => $template)),
+            $current = $this->getLoader(),
+        ));
+
+        $this->setLoader($loader);
+        try {
+            $template = $this->loadTemplate($name);
+        } catch (Exception $e) {
+            $this->setLoader($current);
+
+            throw $e;
+        }
+        $this->setLoader($current);
+
+        return $template;
+    }
+
+    /**
+     * Returns true if the template is still fresh.
+     *
+     * Besides checking the loader for freshness information,
+     * this method also checks if the enabled extensions have
+     * not changed.
+     *
+     * @param string $name The template name
+     * @param int    $time The last modification time of the cached template
+     *
+     * @return bool true if the template is fresh, false otherwise
+     */
+    public function isTemplateFresh($name, $time)
+    {
+        if (0 === $this->lastModifiedExtension) {
+            foreach ($this->extensions as $extension) {
+                $r = new ReflectionObject($extension);
+                if (file_exists($r->getFileName()) && ($extensionTime = filemtime($r->getFileName())) > $this->lastModifiedExtension) {
+                    $this->lastModifiedExtension = $extensionTime;
+                }
+            }
+        }
+
+        return $this->lastModifiedExtension <= $time && $this->getLoader()->isFresh($name, $time);
+    }
+
+    /**
+     * Tries to load a template consecutively from an array.
+     *
+     * Similar to loadTemplate() but it also accepts Twig_TemplateInterface instances and an array
+     * of templates where each is tried to be loaded.
+     *
+     * @param string|Twig_Template|array $names A template or an array of templates to try consecutively
+     *
+     * @return Twig_Template
+     *
+     * @throws Twig_Error_Loader When none of the templates can be found
+     * @throws Twig_Error_Syntax When an error occurred during compilation
+     */
+    public function resolveTemplate($names)
+    {
+        if (!is_array($names)) {
+            $names = array($names);
+        }
+
+        foreach ($names as $name) {
+            if ($name instanceof Twig_Template) {
+                return $name;
+            }
+
+            try {
+                return $this->loadTemplate($name);
+            } catch (Twig_Error_Loader $e) {
+            }
+        }
+
+        if (1 === count($names)) {
+            throw $e;
+        }
+
+        throw new Twig_Error_Loader(sprintf('Unable to find one of the following templates: "%s".', implode('", "', $names)));
+    }
+
+    /**
+     * Clears the internal template cache.
+     *
+     * @deprecated since 1.18.3 (to be removed in 2.0)
+     */
+    public function clearTemplateCache()
+    {
+        @trigger_error(sprintf('The %s method is deprecated since version 1.18.3 and will be removed in Twig 2.0.', __METHOD__), E_USER_DEPRECATED);
+
+        $this->loadedTemplates = array();
+    }
+
+    /**
+     * Clears the template cache files on the filesystem.
+     *
+     * @deprecated since 1.22 (to be removed in 2.0)
+     */
+    public function clearCacheFiles()
+    {
+        @trigger_error(sprintf('The %s method is deprecated since version 1.22 and will be removed in Twig 2.0.', __METHOD__), E_USER_DEPRECATED);
+
+        if (is_string($this->originalCache)) {
+            foreach (new RecursiveIteratorIterator(new RecursiveDirectoryIterator($this->originalCache), RecursiveIteratorIterator::LEAVES_ONLY) as $file) {
+                if ($file->isFile()) {
+                    @unlink($file->getPathname());
+                }
+            }
+        }
+    }
+
+    /**
+     * Gets the Lexer instance.
+     *
+     * @return Twig_LexerInterface A Twig_LexerInterface instance
+     */
+    public function getLexer()
+    {
+        if (null === $this->lexer) {
+            $this->lexer = new Twig_Lexer($this);
+        }
+
+        return $this->lexer;
+    }
+
+    /**
+     * Sets the Lexer instance.
+     *
+     * @param Twig_LexerInterface $lexer A Twig_LexerInterface instance
+     */
+    public function setLexer(Twig_LexerInterface $lexer)
+    {
+        $this->lexer = $lexer;
+    }
+
+    /**
+     * Tokenizes a source code.
+     *
+     * @param string $source The template source code
+     * @param string $name   The template name
+     *
+     * @return Twig_TokenStream A Twig_TokenStream instance
+     *
+     * @throws Twig_Error_Syntax When the code is syntactically wrong
+     */
+    public function tokenize($source, $name = null)
+    {
+        return $this->getLexer()->tokenize($source, $name);
+    }
+
+    /**
+     * Gets the Parser instance.
+     *
+     * @return Twig_ParserInterface A Twig_ParserInterface instance
+     */
+    public function getParser()
+    {
+        if (null === $this->parser) {
+            $this->parser = new Twig_Parser($this);
+        }
+
+        return $this->parser;
+    }
+
+    /**
+     * Sets the Parser instance.
+     *
+     * @param Twig_ParserInterface $parser A Twig_ParserInterface instance
+     */
+    public function setParser(Twig_ParserInterface $parser)
+    {
+        $this->parser = $parser;
+    }
+
+    /**
+     * Converts a token stream to a node tree.
+     *
+     * @param Twig_TokenStream $stream A token stream instance
+     *
+     * @return Twig_Node_Module A node tree
+     *
+     * @throws Twig_Error_Syntax When the token stream is syntactically or semantically wrong
+     */
+    public function parse(Twig_TokenStream $stream)
+    {
+        return $this->getParser()->parse($stream);
+    }
+
+    /**
+     * Gets the Compiler instance.
+     *
+     * @return Twig_CompilerInterface A Twig_CompilerInterface instance
+     */
+    public function getCompiler()
+    {
+        if (null === $this->compiler) {
+            $this->compiler = new Twig_Compiler($this);
+        }
+
+        return $this->compiler;
+    }
+
+    /**
+     * Sets the Compiler instance.
+     *
+     * @param Twig_CompilerInterface $compiler A Twig_CompilerInterface instance
+     */
+    public function setCompiler(Twig_CompilerInterface $compiler)
+    {
+        $this->compiler = $compiler;
+    }
+
+    /**
+     * Compiles a node and returns the PHP code.
+     *
+     * @param Twig_NodeInterface $node A Twig_NodeInterface instance
+     *
+     * @return string The compiled PHP source code
+     */
+    public function compile(Twig_NodeInterface $node)
+    {
+        return $this->getCompiler()->compile($node)->getSource();
+    }
+
+    /**
+     * Compiles a template source code.
+     *
+     * @param string $source The template source code
+     * @param string $name   The template name
+     *
+     * @return string The compiled PHP source code
+     *
+     * @throws Twig_Error_Syntax When there was an error during tokenizing, parsing or compiling
+     */
+    public function compileSource($source, $name = null)
+    {
+        try {
+            $compiled = $this->compile($this->parse($this->tokenize($source, $name)), $source);
+
+            if (isset($source[0])) {
+                $compiled .= '/* '.str_replace(array('*/', "\r\n", "\r", "\n"), array('*//* ', "\n", "\n", "*/\n/* "), $source)."*/\n";
+            }
+
+            return $compiled;
+        } catch (Twig_Error $e) {
+            $e->setTemplateFile($name);
+            throw $e;
+        } catch (Exception $e) {
+            throw new Twig_Error_Syntax(sprintf('An exception has been thrown during the compilation of a template ("%s").', $e->getMessage()), -1, $name, $e);
+        }
+    }
+
+    /**
+     * Sets the Loader instance.
+     *
+     * @param Twig_LoaderInterface $loader A Twig_LoaderInterface instance
+     */
+    public function setLoader(Twig_LoaderInterface $loader)
+    {
+        $this->loader = $loader;
+    }
+
+    /**
+     * Gets the Loader instance.
+     *
+     * @return Twig_LoaderInterface A Twig_LoaderInterface instance
+     */
+    public function getLoader()
+    {
+        if (null === $this->loader) {
+            throw new LogicException('You must set a loader first.');
+        }
+
+        return $this->loader;
+    }
+
+    /**
+     * Sets the default template charset.
+     *
+     * @param string $charset The default charset
+     */
+    public function setCharset($charset)
+    {
+        $this->charset = strtoupper($charset);
+    }
+
+    /**
+     * Gets the default template charset.
+     *
+     * @return string The default charset
+     */
+    public function getCharset()
+    {
+        return $this->charset;
+    }
+
+    /**
+     * Initializes the runtime environment.
+     *
+     * @deprecated since 1.23 (to be removed in 2.0)
+     */
+    public function initRuntime()
+    {
+        $this->runtimeInitialized = true;
+
+        foreach ($this->getExtensions() as $name => $extension) {
+            if (!$extension instanceof Twig_Extension_InitRuntimeInterface) {
+                $m = new ReflectionMethod($extension, 'initRuntime');
+
+                if ('Twig_Extension' !== $m->getDeclaringClass()->getName()) {
+                    @trigger_error(sprintf('Defining the initRuntime() method in the "%s" extension is deprecated since version 1.23. Use the `needs_environment` option to get the Twig_Environment instance in filters, functions, or tests; or explicitly implement Twig_Extension_InitRuntimeInterface if needed (not recommended).', $name), E_USER_DEPRECATED);
+                }
+            }
+
+            $extension->initRuntime($this);
+        }
+    }
+
+    /**
+     * Returns true if the given extension is registered.
+     *
+     * @param string $name The extension name
+     *
+     * @return bool Whether the extension is registered or not
+     */
+    public function hasExtension($name)
+    {
+        return isset($this->extensions[$name]);
+    }
+
+    /**
+     * Gets an extension by name.
+     *
+     * @param string $name The extension name
+     *
+     * @return Twig_ExtensionInterface A Twig_ExtensionInterface instance
+     */
+    public function getExtension($name)
+    {
+        if (!isset($this->extensions[$name])) {
+            throw new Twig_Error_Runtime(sprintf('The "%s" extension is not enabled.', $name));
+        }
+
+        return $this->extensions[$name];
+    }
+
+    /**
+     * Registers an extension.
+     *
+     * @param Twig_ExtensionInterface $extension A Twig_ExtensionInterface instance
+     */
+    public function addExtension(Twig_ExtensionInterface $extension)
+    {
+        $name = $extension->getName();
+
+        if ($this->extensionInitialized) {
+            throw new LogicException(sprintf('Unable to register extension "%s" as extensions have already been initialized.', $name));
+        }
+
+        if (isset($this->extensions[$name])) {
+            @trigger_error(sprintf('The possibility to register the same extension twice ("%s") is deprecated since version 1.23 and will be removed in Twig 2.0. Use proper PHP inheritance instead.', $name), E_USER_DEPRECATED);
+        }
+
+        $this->lastModifiedExtension = 0;
+
+        $this->extensions[$name] = $extension;
+    }
+
+    /**
+     * Removes an extension by name.
+     *
+     * This method is deprecated and you should not use it.
+     *
+     * @param string $name The extension name
+     *
+     * @deprecated since 1.12 (to be removed in 2.0)
+     */
+    public function removeExtension($name)
+    {
+        @trigger_error(sprintf('The %s method is deprecated since version 1.12 and will be removed in Twig 2.0.', __METHOD__), E_USER_DEPRECATED);
+
+        if ($this->extensionInitialized) {
+            throw new LogicException(sprintf('Unable to remove extension "%s" as extensions have already been initialized.', $name));
+        }
+
+        unset($this->extensions[$name]);
+    }
+
+    /**
+     * Registers an array of extensions.
+     *
+     * @param array $extensions An array of extensions
+     */
+    public function setExtensions(array $extensions)
+    {
+        foreach ($extensions as $extension) {
+            $this->addExtension($extension);
+        }
+    }
+
+    /**
+     * Returns all registered extensions.
+     *
+     * @return array An array of extensions
+     */
+    public function getExtensions()
+    {
+        return $this->extensions;
+    }
+
+    /**
+     * Registers a Token Parser.
+     *
+     * @param Twig_TokenParserInterface $parser A Twig_TokenParserInterface instance
+     */
+    public function addTokenParser(Twig_TokenParserInterface $parser)
+    {
+        if ($this->extensionInitialized) {
+            throw new LogicException('Unable to add a token parser as extensions have already been initialized.');
+        }
+
+        $this->staging->addTokenParser($parser);
+    }
+
+    /**
+     * Gets the registered Token Parsers.
+     *
+     * @return Twig_TokenParserBrokerInterface A broker containing token parsers
+     */
+    public function getTokenParsers()
+    {
+        if (!$this->extensionInitialized) {
+            $this->initExtensions();
+        }
+
+        return $this->parsers;
+    }
+
+    /**
+     * Gets registered tags.
+     *
+     * Be warned that this method cannot return tags defined by Twig_TokenParserBrokerInterface classes.
+     *
+     * @return Twig_TokenParserInterface[] An array of Twig_TokenParserInterface instances
+     */
+    public function getTags()
+    {
+        $tags = array();
+        foreach ($this->getTokenParsers()->getParsers() as $parser) {
+            if ($parser instanceof Twig_TokenParserInterface) {
+                $tags[$parser->getTag()] = $parser;
+            }
+        }
+
+        return $tags;
+    }
+
+    /**
+     * Registers a Node Visitor.
+     *
+     * @param Twig_NodeVisitorInterface $visitor A Twig_NodeVisitorInterface instance
+     */
+    public function addNodeVisitor(Twig_NodeVisitorInterface $visitor)
+    {
+        if ($this->extensionInitialized) {
+            throw new LogicException('Unable to add a node visitor as extensions have already been initialized.');
+        }
+
+        $this->staging->addNodeVisitor($visitor);
+    }
+
+    /**
+     * Gets the registered Node Visitors.
+     *
+     * @return Twig_NodeVisitorInterface[] An array of Twig_NodeVisitorInterface instances
+     */
+    public function getNodeVisitors()
+    {
+        if (!$this->extensionInitialized) {
+            $this->initExtensions();
+        }
+
+        return $this->visitors;
+    }
+
+    /**
+     * Registers a Filter.
+     *
+     * @param string|Twig_SimpleFilter               $name   The filter name or a Twig_SimpleFilter instance
+     * @param Twig_FilterInterface|Twig_SimpleFilter $filter A Twig_FilterInterface instance or a Twig_SimpleFilter instance
+     */
+    public function addFilter($name, $filter = null)
+    {
+        if (!$name instanceof Twig_SimpleFilter && !($filter instanceof Twig_SimpleFilter || $filter instanceof Twig_FilterInterface)) {
+            throw new LogicException('A filter must be an instance of Twig_FilterInterface or Twig_SimpleFilter');
+        }
+
+        if ($name instanceof Twig_SimpleFilter) {
+            $filter = $name;
+            $name = $filter->getName();
+        } else {
+            @trigger_error(sprintf('Passing a name as a first argument to the %s method is deprecated since version 1.21. Pass an instance of "Twig_SimpleFilter" instead when defining filter "%s".', __METHOD__, $name), E_USER_DEPRECATED);
+        }
+
+        if ($this->extensionInitialized) {
+            throw new LogicException(sprintf('Unable to add filter "%s" as extensions have already been initialized.', $name));
+        }
+
+        $this->staging->addFilter($name, $filter);
+    }
+
+    /**
+     * Get a filter by name.
+     *
+     * Subclasses may override this method and load filters differently;
+     * so no list of filters is available.
+     *
+     * @param string $name The filter name
+     *
+     * @return Twig_Filter|false A Twig_Filter instance or false if the filter does not exist
+     */
+    public function getFilter($name)
+    {
+        if (!$this->extensionInitialized) {
+            $this->initExtensions();
+        }
+
+        if (isset($this->filters[$name])) {
+            return $this->filters[$name];
+        }
+
+        foreach ($this->filters as $pattern => $filter) {
+            $pattern = str_replace('\\*', '(.*?)', preg_quote($pattern, '#'), $count);
+
+            if ($count) {
+                if (preg_match('#^'.$pattern.'$#', $name, $matches)) {
+                    array_shift($matches);
+                    $filter->setArguments($matches);
+
+                    return $filter;
+                }
+            }
+        }
+
+        foreach ($this->filterCallbacks as $callback) {
+            if (false !== $filter = call_user_func($callback, $name)) {
+                return $filter;
+            }
+        }
+
+        return false;
+    }
+
+    public function registerUndefinedFilterCallback($callable)
+    {
+        $this->filterCallbacks[] = $callable;
+    }
+
+    /**
+     * Gets the registered Filters.
+     *
+     * Be warned that this method cannot return filters defined with registerUndefinedFilterCallback.
+     *
+     * @return Twig_FilterInterface[] An array of Twig_FilterInterface instances
+     *
+     * @see registerUndefinedFilterCallback
+     */
+    public function getFilters()
+    {
+        if (!$this->extensionInitialized) {
+            $this->initExtensions();
+        }
+
+        return $this->filters;
+    }
+
+    /**
+     * Registers a Test.
+     *
+     * @param string|Twig_SimpleTest             $name The test name or a Twig_SimpleTest instance
+     * @param Twig_TestInterface|Twig_SimpleTest $test A Twig_TestInterface instance or a Twig_SimpleTest instance
+     */
+    public function addTest($name, $test = null)
+    {
+        if (!$name instanceof Twig_SimpleTest && !($test instanceof Twig_SimpleTest || $test instanceof Twig_TestInterface)) {
+            throw new LogicException('A test must be an instance of Twig_TestInterface or Twig_SimpleTest');
+        }
+
+        if ($name instanceof Twig_SimpleTest) {
+            $test = $name;
+            $name = $test->getName();
+        } else {
+            @trigger_error(sprintf('Passing a name as a first argument to the %s method is deprecated since version 1.21. Pass an instance of "Twig_SimpleTest" instead when defining test "%s".', __METHOD__, $name), E_USER_DEPRECATED);
+        }
+
+        if ($this->extensionInitialized) {
+            throw new LogicException(sprintf('Unable to add test "%s" as extensions have already been initialized.', $name));
+        }
+
+        $this->staging->addTest($name, $test);
+    }
+
+    /**
+     * Gets the registered Tests.
+     *
+     * @return Twig_TestInterface[] An array of Twig_TestInterface instances
+     */
+    public function getTests()
+    {
+        if (!$this->extensionInitialized) {
+            $this->initExtensions();
+        }
+
+        return $this->tests;
+    }
+
+    /**
+     * Gets a test by name.
+     *
+     * @param string $name The test name
+     *
+     * @return Twig_Test|false A Twig_Test instance or false if the test does not exist
+     */
+    public function getTest($name)
+    {
+        if (!$this->extensionInitialized) {
+            $this->initExtensions();
+        }
+
+        if (isset($this->tests[$name])) {
+            return $this->tests[$name];
+        }
+
+        return false;
+    }
+
+    /**
+     * Registers a Function.
+     *
+     * @param string|Twig_SimpleFunction                 $name     The function name or a Twig_SimpleFunction instance
+     * @param Twig_FunctionInterface|Twig_SimpleFunction $function A Twig_FunctionInterface instance or a Twig_SimpleFunction instance
+     */
+    public function addFunction($name, $function = null)
+    {
+        if (!$name instanceof Twig_SimpleFunction && !($function instanceof Twig_SimpleFunction || $function instanceof Twig_FunctionInterface)) {
+            throw new LogicException('A function must be an instance of Twig_FunctionInterface or Twig_SimpleFunction');
+        }
+
+        if ($name instanceof Twig_SimpleFunction) {
+            $function = $name;
+            $name = $function->getName();
+        } else {
+            @trigger_error(sprintf('Passing a name as a first argument to the %s method is deprecated since version 1.21. Pass an instance of "Twig_SimpleFunction" instead when defining function "%s".', __METHOD__, $name), E_USER_DEPRECATED);
+        }
+
+        if ($this->extensionInitialized) {
+            throw new LogicException(sprintf('Unable to add function "%s" as extensions have already been initialized.', $name));
+        }
+
+        $this->staging->addFunction($name, $function);
+    }
+
+    /**
+     * Get a function by name.
+     *
+     * Subclasses may override this method and load functions differently;
+     * so no list of functions is available.
+     *
+     * @param string $name function name
+     *
+     * @return Twig_Function|false A Twig_Function instance or false if the function does not exist
+     */
+    public function getFunction($name)
+    {
+        if (!$this->extensionInitialized) {
+            $this->initExtensions();
+        }
+
+        if (isset($this->functions[$name])) {
+            return $this->functions[$name];
+        }
+
+        foreach ($this->functions as $pattern => $function) {
+            $pattern = str_replace('\\*', '(.*?)', preg_quote($pattern, '#'), $count);
+
+            if ($count) {
+                if (preg_match('#^'.$pattern.'$#', $name, $matches)) {
+                    array_shift($matches);
+                    $function->setArguments($matches);
+
+                    return $function;
+                }
+            }
+        }
+
+        foreach ($this->functionCallbacks as $callback) {
+            if (false !== $function = call_user_func($callback, $name)) {
+                return $function;
+            }
+        }
+
+        return false;
+    }
+
+    public function registerUndefinedFunctionCallback($callable)
+    {
+        $this->functionCallbacks[] = $callable;
+    }
+
+    /**
+     * Gets registered functions.
+     *
+     * Be warned that this method cannot return functions defined with registerUndefinedFunctionCallback.
+     *
+     * @return Twig_FunctionInterface[] An array of Twig_FunctionInterface instances
+     *
+     * @see registerUndefinedFunctionCallback
+     */
+    public function getFunctions()
+    {
+        if (!$this->extensionInitialized) {
+            $this->initExtensions();
+        }
+
+        return $this->functions;
+    }
+
+    /**
+     * Registers a Global.
+     *
+     * New globals can be added before compiling or rendering a template;
+     * but after, you can only update existing globals.
+     *
+     * @param string $name  The global name
+     * @param mixed  $value The global value
+     */
+    public function addGlobal($name, $value)
+    {
+        if ($this->extensionInitialized || $this->runtimeInitialized) {
+            if (null === $this->globals) {
+                $this->globals = $this->initGlobals();
+            }
+
+            if (!array_key_exists($name, $this->globals)) {
+                // The deprecation notice must be turned into the following exception in Twig 2.0
+                @trigger_error(sprintf('Registering global variable "%s" at runtime or when the extensions have already been initialized is deprecated since version 1.21.', $name), E_USER_DEPRECATED);
+                //throw new LogicException(sprintf('Unable to add global "%s" as the runtime or the extensions have already been initialized.', $name));
+            }
+        }
+
+        if ($this->extensionInitialized || $this->runtimeInitialized) {
+            // update the value
+            $this->globals[$name] = $value;
+        } else {
+            $this->staging->addGlobal($name, $value);
+        }
+    }
+
+    /**
+     * Gets the registered Globals.
+     *
+     * @return array An array of globals
+     */
+    public function getGlobals()
+    {
+        if (!$this->runtimeInitialized && !$this->extensionInitialized) {
+            return $this->initGlobals();
+        }
+
+        if (null === $this->globals) {
+            $this->globals = $this->initGlobals();
+        }
+
+        return $this->globals;
+    }
+
+    /**
+     * Merges a context with the defined globals.
+     *
+     * @param array $context An array representing the context
+     *
+     * @return array The context merged with the globals
+     */
+    public function mergeGlobals(array $context)
+    {
+        // we don't use array_merge as the context being generally
+        // bigger than globals, this code is faster.
+        foreach ($this->getGlobals() as $key => $value) {
+            if (!array_key_exists($key, $context)) {
+                $context[$key] = $value;
+            }
+        }
+
+        return $context;
+    }
+
+    /**
+     * Gets the registered unary Operators.
+     *
+     * @return array An array of unary operators
+     */
+    public function getUnaryOperators()
+    {
+        if (!$this->extensionInitialized) {
+            $this->initExtensions();
+        }
+
+        return $this->unaryOperators;
+    }
+
+    /**
+     * Gets the registered binary Operators.
+     *
+     * @return array An array of binary operators
+     */
+    public function getBinaryOperators()
+    {
+        if (!$this->extensionInitialized) {
+            $this->initExtensions();
+        }
+
+        return $this->binaryOperators;
+    }
+
+    /**
+     * @deprecated since 1.23 (to be removed in 2.0)
+     */
+    public function computeAlternatives($name, $items)
+    {
+        @trigger_error(sprintf('The %s method is deprecated since version 1.23 and will be removed in Twig 2.0.', __METHOD__), E_USER_DEPRECATED);
+
+        return Twig_Error_Syntax::computeAlternatives($name, $items);
+    }
+
+    protected function initGlobals()
+    {
+        $globals = array();
+        foreach ($this->extensions as $name => $extension) {
+            if (!$extension instanceof Twig_Extension_GlobalsInterface) {
+                $m = new ReflectionMethod($extension, 'getGlobals');
+
+                if ('Twig_Extension' !== $m->getDeclaringClass()->getName()) {
+                    @trigger_error(sprintf('Defining the getGlobals() method in the "%s" extension without explicitly implementing Twig_Extension_GlobalsInterface is deprecated since version 1.23.', $name), E_USER_DEPRECATED);
+                }
+            }
+
+            $extGlob = $extension->getGlobals();
+            if (!is_array($extGlob)) {
+                throw new UnexpectedValueException(sprintf('"%s::getGlobals()" must return an array of globals.', get_class($extension)));
+            }
+
+            $globals[] = $extGlob;
+        }
+
+        $globals[] = $this->staging->getGlobals();
+
+        return call_user_func_array('array_merge', $globals);
+    }
+
+    protected function initExtensions()
+    {
+        if ($this->extensionInitialized) {
+            return;
+        }
+
+        $this->extensionInitialized = true;
+        $this->parsers = new Twig_TokenParserBroker(array(), array(), false);
+        $this->filters = array();
+        $this->functions = array();
+        $this->tests = array();
+        $this->visitors = array();
+        $this->unaryOperators = array();
+        $this->binaryOperators = array();
+
+        foreach ($this->extensions as $extension) {
+            $this->initExtension($extension);
+        }
+        $this->initExtension($this->staging);
+    }
+
+    protected function initExtension(Twig_ExtensionInterface $extension)
+    {
+        // filters
+        foreach ($extension->getFilters() as $name => $filter) {
+            if ($filter instanceof Twig_SimpleFilter) {
+                $name = $filter->getName();
+            } else {
+                @trigger_error(sprintf('Using an instance of "%s" for filter "%s" is deprecated since version 1.21. Use Twig_SimpleFilter instead.', get_class($filter), $name), E_USER_DEPRECATED);
+            }
+
+            $this->filters[$name] = $filter;
+        }
+
+        // functions
+        foreach ($extension->getFunctions() as $name => $function) {
+            if ($function instanceof Twig_SimpleFunction) {
+                $name = $function->getName();
+            } else {
+                @trigger_error(sprintf('Using an instance of "%s" for function "%s" is deprecated since version 1.21. Use Twig_SimpleFunction instead.', get_class($function), $name), E_USER_DEPRECATED);
+            }
+
+            $this->functions[$name] = $function;
+        }
+
+        // tests
+        foreach ($extension->getTests() as $name => $test) {
+            if ($test instanceof Twig_SimpleTest) {
+                $name = $test->getName();
+            } else {
+                @trigger_error(sprintf('Using an instance of "%s" for test "%s" is deprecated since version 1.21. Use Twig_SimpleTest instead.', get_class($test), $name), E_USER_DEPRECATED);
+            }
+
+            $this->tests[$name] = $test;
+        }
+
+        // token parsers
+        foreach ($extension->getTokenParsers() as $parser) {
+            if ($parser instanceof Twig_TokenParserInterface) {
+                $this->parsers->addTokenParser($parser);
+            } elseif ($parser instanceof Twig_TokenParserBrokerInterface) {
+                @trigger_error('Registering a Twig_TokenParserBrokerInterface instance is deprecated since version 1.21.', E_USER_DEPRECATED);
+
+                $this->parsers->addTokenParserBroker($parser);
+            } else {
+                throw new LogicException('getTokenParsers() must return an array of Twig_TokenParserInterface or Twig_TokenParserBrokerInterface instances');
+            }
+        }
+
+        // node visitors
+        foreach ($extension->getNodeVisitors() as $visitor) {
+            $this->visitors[] = $visitor;
+        }
+
+        // operators
+        if ($operators = $extension->getOperators()) {
+            if (2 !== count($operators)) {
+                throw new InvalidArgumentException(sprintf('"%s::getOperators()" does not return a valid operators array.', get_class($extension)));
+            }
+
+            $this->unaryOperators = array_merge($this->unaryOperators, $operators[0]);
+            $this->binaryOperators = array_merge($this->binaryOperators, $operators[1]);
+        }
+    }
+
+    /**
+     * @deprecated since 1.22 (to be removed in 2.0)
+     */
+    protected function writeCacheFile($file, $content)
+    {
+        $this->cache->write($file, $content);
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Error.php b/vendor/twig/twig/lib/Twig/Error.php
new file mode 100644
index 000000000..37c743528
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Error.php
@@ -0,0 +1,272 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Twig base exception.
+ *
+ * This exception class and its children must only be used when
+ * an error occurs during the loading of a template, when a syntax error
+ * is detected in a template, or when rendering a template. Other
+ * errors must use regular PHP exception classes (like when the template
+ * cache directory is not writable for instance).
+ *
+ * To help debugging template issues, this class tracks the original template
+ * name and line where the error occurred.
+ *
+ * Whenever possible, you must set these information (original template name
+ * and line number) yourself by passing them to the constructor. If some or all
+ * these information are not available from where you throw the exception, then
+ * this class will guess them automatically (when the line number is set to -1
+ * and/or the filename is set to null). As this is a costly operation, this
+ * can be disabled by passing false for both the filename and the line number
+ * when creating a new instance of this class.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Error extends Exception
+{
+    protected $lineno;
+    protected $filename;
+    protected $rawMessage;
+    protected $previous;
+
+    /**
+     * Constructor.
+     *
+     * Set both the line number and the filename to false to
+     * disable automatic guessing of the original template name
+     * and line number.
+     *
+     * Set the line number to -1 to enable its automatic guessing.
+     * Set the filename to null to enable its automatic guessing.
+     *
+     * By default, automatic guessing is enabled.
+     *
+     * @param string    $message  The error message
+     * @param int       $lineno   The template line where the error occurred
+     * @param string    $filename The template file name where the error occurred
+     * @param Exception $previous The previous exception
+     */
+    public function __construct($message, $lineno = -1, $filename = null, Exception $previous = null)
+    {
+        if (PHP_VERSION_ID < 50300) {
+            $this->previous = $previous;
+            parent::__construct('');
+        } else {
+            parent::__construct('', 0, $previous);
+        }
+
+        $this->lineno = $lineno;
+        $this->filename = $filename;
+
+        if (-1 === $this->lineno || null === $this->filename) {
+            $this->guessTemplateInfo();
+        }
+
+        $this->rawMessage = $message;
+
+        $this->updateRepr();
+    }
+
+    /**
+     * Gets the raw message.
+     *
+     * @return string The raw message
+     */
+    public function getRawMessage()
+    {
+        return $this->rawMessage;
+    }
+
+    /**
+     * Gets the filename where the error occurred.
+     *
+     * @return string The filename
+     */
+    public function getTemplateFile()
+    {
+        return $this->filename;
+    }
+
+    /**
+     * Sets the filename where the error occurred.
+     *
+     * @param string $filename The filename
+     */
+    public function setTemplateFile($filename)
+    {
+        $this->filename = $filename;
+
+        $this->updateRepr();
+    }
+
+    /**
+     * Gets the template line where the error occurred.
+     *
+     * @return int The template line
+     */
+    public function getTemplateLine()
+    {
+        return $this->lineno;
+    }
+
+    /**
+     * Sets the template line where the error occurred.
+     *
+     * @param int $lineno The template line
+     */
+    public function setTemplateLine($lineno)
+    {
+        $this->lineno = $lineno;
+
+        $this->updateRepr();
+    }
+
+    public function guess()
+    {
+        $this->guessTemplateInfo();
+        $this->updateRepr();
+    }
+
+    /**
+     * For PHP < 5.3.0, provides access to the getPrevious() method.
+     *
+     * @param string $method    The method name
+     * @param array  $arguments The parameters to be passed to the method
+     *
+     * @return Exception The previous exception or null
+     *
+     * @throws BadMethodCallException
+     */
+    public function __call($method, $arguments)
+    {
+        if ('getprevious' == strtolower($method)) {
+            return $this->previous;
+        }
+
+        throw new BadMethodCallException(sprintf('Method "Twig_Error::%s()" does not exist.', $method));
+    }
+
+    public function appendMessage($rawMessage)
+    {
+        $this->rawMessage .= $rawMessage;
+        $this->updateRepr();
+    }
+
+    /**
+     * @internal
+     */
+    protected function updateRepr()
+    {
+        $this->message = $this->rawMessage;
+
+        $dot = false;
+        if ('.' === substr($this->message, -1)) {
+            $this->message = substr($this->message, 0, -1);
+            $dot = true;
+        }
+
+        $questionMark = false;
+        if ('?' === substr($this->message, -1)) {
+            $this->message = substr($this->message, 0, -1);
+            $questionMark = true;
+        }
+
+        if ($this->filename) {
+            if (is_string($this->filename) || (is_object($this->filename) && method_exists($this->filename, '__toString'))) {
+                $filename = sprintf('"%s"', $this->filename);
+            } else {
+                $filename = json_encode($this->filename);
+            }
+            $this->message .= sprintf(' in %s', $filename);
+        }
+
+        if ($this->lineno && $this->lineno >= 0) {
+            $this->message .= sprintf(' at line %d', $this->lineno);
+        }
+
+        if ($dot) {
+            $this->message .= '.';
+        }
+
+        if ($questionMark) {
+            $this->message .= '?';
+        }
+    }
+
+    /**
+     * @internal
+     */
+    protected function guessTemplateInfo()
+    {
+        $template = null;
+        $templateClass = null;
+
+        if (PHP_VERSION_ID >= 50306) {
+            $backtrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS | DEBUG_BACKTRACE_PROVIDE_OBJECT);
+        } else {
+            $backtrace = debug_backtrace();
+        }
+
+        foreach ($backtrace as $trace) {
+            if (isset($trace['object']) && $trace['object'] instanceof Twig_Template && 'Twig_Template' !== get_class($trace['object'])) {
+                $currentClass = get_class($trace['object']);
+                $isEmbedContainer = 0 === strpos($templateClass, $currentClass);
+                if (null === $this->filename || ($this->filename == $trace['object']->getTemplateName() && !$isEmbedContainer)) {
+                    $template = $trace['object'];
+                    $templateClass = get_class($trace['object']);
+                }
+            }
+        }
+
+        // update template filename
+        if (null !== $template && null === $this->filename) {
+            $this->filename = $template->getTemplateName();
+        }
+
+        if (null === $template || $this->lineno > -1) {
+            return;
+        }
+
+        $r = new ReflectionObject($template);
+        $file = $r->getFileName();
+
+        // hhvm has a bug where eval'ed files comes out as the current directory
+        if (is_dir($file)) {
+            $file = '';
+        }
+
+        $exceptions = array($e = $this);
+        while (($e instanceof self || method_exists($e, 'getPrevious')) && $e = $e->getPrevious()) {
+            $exceptions[] = $e;
+        }
+
+        while ($e = array_pop($exceptions)) {
+            $traces = $e->getTrace();
+            array_unshift($traces, array('file' => $e->getFile(), 'line' => $e->getLine()));
+
+            while ($trace = array_shift($traces)) {
+                if (!isset($trace['file']) || !isset($trace['line']) || $file != $trace['file']) {
+                    continue;
+                }
+
+                foreach ($template->getDebugInfo() as $codeLine => $templateLine) {
+                    if ($codeLine <= $trace['line']) {
+                        // update template line
+                        $this->lineno = $templateLine;
+
+                        return;
+                    }
+                }
+            }
+        }
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Error/Loader.php b/vendor/twig/twig/lib/Twig/Error/Loader.php
new file mode 100644
index 000000000..68efb574a
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Error/Loader.php
@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Exception thrown when an error occurs during template loading.
+ *
+ * Automatic template information guessing is always turned off as
+ * if a template cannot be loaded, there is nothing to guess.
+ * However, when a template is loaded from another one, then, we need
+ * to find the current context and this is automatically done by
+ * Twig_Template::displayWithErrorHandling().
+ *
+ * This strategy makes Twig_Environment::resolveTemplate() much faster.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Error_Loader extends Twig_Error
+{
+    public function __construct($message, $lineno = -1, $filename = null, Exception $previous = null)
+    {
+        parent::__construct($message, false, false, $previous);
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Error/Runtime.php b/vendor/twig/twig/lib/Twig/Error/Runtime.php
new file mode 100644
index 000000000..8b6ceddb9
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Error/Runtime.php
@@ -0,0 +1,20 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Exception thrown when an error occurs at runtime.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Error_Runtime extends Twig_Error
+{
+}
diff --git a/vendor/twig/twig/lib/Twig/Error/Syntax.php b/vendor/twig/twig/lib/Twig/Error/Syntax.php
new file mode 100644
index 000000000..f73730a1a
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Error/Syntax.php
@@ -0,0 +1,53 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Exception thrown when a syntax error occurs during lexing or parsing of a template.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Error_Syntax extends Twig_Error
+{
+    /**
+     * Tweaks the error message to include suggestions.
+     *
+     * @param string $name  The original name of the item that does not exist
+     * @param array  $items An array of possible items
+     */
+    public function addSuggestions($name, array $items)
+    {
+        if (!$alternatives = self::computeAlternatives($name, $items)) {
+            return;
+        }
+
+        $this->appendMessage(sprintf(' Did you mean "%s"?', implode('", "', $alternatives)));
+    }
+
+    /**
+     * @internal
+     *
+     * To be merged with the addSuggestions() method in 2.0.
+     */
+    public static function computeAlternatives($name, $items)
+    {
+        $alternatives = array();
+        foreach ($items as $item) {
+            $lev = levenshtein($name, $item);
+            if ($lev <= strlen($name) / 3 || false !== strpos($item, $name)) {
+                $alternatives[$item] = $lev;
+            }
+        }
+        asort($alternatives);
+
+        return array_keys($alternatives);
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/ExistsLoaderInterface.php b/vendor/twig/twig/lib/Twig/ExistsLoaderInterface.php
new file mode 100644
index 000000000..b168c3c35
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/ExistsLoaderInterface.php
@@ -0,0 +1,29 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Adds an exists() method for loaders.
+ *
+ * @author Florin Patan <florinpatan@gmail.com>
+ *
+ * @deprecated since 1.12 (to be removed in 3.0)
+ */
+interface Twig_ExistsLoaderInterface
+{
+    /**
+     * Check if we have the source code of a template, given its name.
+     *
+     * @param string $name The name of the template to check if we can load
+     *
+     * @return bool If the template source code is handled by this loader or not
+     */
+    public function exists($name);
+}
diff --git a/vendor/twig/twig/lib/Twig/ExpressionParser.php b/vendor/twig/twig/lib/Twig/ExpressionParser.php
new file mode 100644
index 000000000..7b2d58f27
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/ExpressionParser.php
@@ -0,0 +1,647 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Parses expressions.
+ *
+ * This parser implements a "Precedence climbing" algorithm.
+ *
+ * @see http://www.engr.mun.ca/~theo/Misc/exp_parsing.htm
+ * @see http://en.wikipedia.org/wiki/Operator-precedence_parser
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_ExpressionParser
+{
+    const OPERATOR_LEFT = 1;
+    const OPERATOR_RIGHT = 2;
+
+    protected $parser;
+    protected $unaryOperators;
+    protected $binaryOperators;
+
+    public function __construct(Twig_Parser $parser, array $unaryOperators, array $binaryOperators)
+    {
+        $this->parser = $parser;
+        $this->unaryOperators = $unaryOperators;
+        $this->binaryOperators = $binaryOperators;
+    }
+
+    public function parseExpression($precedence = 0)
+    {
+        $expr = $this->getPrimary();
+        $token = $this->parser->getCurrentToken();
+        while ($this->isBinary($token) && $this->binaryOperators[$token->getValue()]['precedence'] >= $precedence) {
+            $op = $this->binaryOperators[$token->getValue()];
+            $this->parser->getStream()->next();
+
+            if (isset($op['callable'])) {
+                $expr = call_user_func($op['callable'], $this->parser, $expr);
+            } else {
+                $expr1 = $this->parseExpression(self::OPERATOR_LEFT === $op['associativity'] ? $op['precedence'] + 1 : $op['precedence']);
+                $class = $op['class'];
+                $expr = new $class($expr, $expr1, $token->getLine());
+            }
+
+            $token = $this->parser->getCurrentToken();
+        }
+
+        if (0 === $precedence) {
+            return $this->parseConditionalExpression($expr);
+        }
+
+        return $expr;
+    }
+
+    protected function getPrimary()
+    {
+        $token = $this->parser->getCurrentToken();
+
+        if ($this->isUnary($token)) {
+            $operator = $this->unaryOperators[$token->getValue()];
+            $this->parser->getStream()->next();
+            $expr = $this->parseExpression($operator['precedence']);
+            $class = $operator['class'];
+
+            return $this->parsePostfixExpression(new $class($expr, $token->getLine()));
+        } elseif ($token->test(Twig_Token::PUNCTUATION_TYPE, '(')) {
+            $this->parser->getStream()->next();
+            $expr = $this->parseExpression();
+            $this->parser->getStream()->expect(Twig_Token::PUNCTUATION_TYPE, ')', 'An opened parenthesis is not properly closed');
+
+            return $this->parsePostfixExpression($expr);
+        }
+
+        return $this->parsePrimaryExpression();
+    }
+
+    protected function parseConditionalExpression($expr)
+    {
+        while ($this->parser->getStream()->nextIf(Twig_Token::PUNCTUATION_TYPE, '?')) {
+            if (!$this->parser->getStream()->nextIf(Twig_Token::PUNCTUATION_TYPE, ':')) {
+                $expr2 = $this->parseExpression();
+                if ($this->parser->getStream()->nextIf(Twig_Token::PUNCTUATION_TYPE, ':')) {
+                    $expr3 = $this->parseExpression();
+                } else {
+                    $expr3 = new Twig_Node_Expression_Constant('', $this->parser->getCurrentToken()->getLine());
+                }
+            } else {
+                $expr2 = $expr;
+                $expr3 = $this->parseExpression();
+            }
+
+            $expr = new Twig_Node_Expression_Conditional($expr, $expr2, $expr3, $this->parser->getCurrentToken()->getLine());
+        }
+
+        return $expr;
+    }
+
+    protected function isUnary(Twig_Token $token)
+    {
+        return $token->test(Twig_Token::OPERATOR_TYPE) && isset($this->unaryOperators[$token->getValue()]);
+    }
+
+    protected function isBinary(Twig_Token $token)
+    {
+        return $token->test(Twig_Token::OPERATOR_TYPE) && isset($this->binaryOperators[$token->getValue()]);
+    }
+
+    public function parsePrimaryExpression()
+    {
+        $token = $this->parser->getCurrentToken();
+        switch ($token->getType()) {
+            case Twig_Token::NAME_TYPE:
+                $this->parser->getStream()->next();
+                switch ($token->getValue()) {
+                    case 'true':
+                    case 'TRUE':
+                        $node = new Twig_Node_Expression_Constant(true, $token->getLine());
+                        break;
+
+                    case 'false':
+                    case 'FALSE':
+                        $node = new Twig_Node_Expression_Constant(false, $token->getLine());
+                        break;
+
+                    case 'none':
+                    case 'NONE':
+                    case 'null':
+                    case 'NULL':
+                        $node = new Twig_Node_Expression_Constant(null, $token->getLine());
+                        break;
+
+                    default:
+                        if ('(' === $this->parser->getCurrentToken()->getValue()) {
+                            $node = $this->getFunctionNode($token->getValue(), $token->getLine());
+                        } else {
+                            $node = new Twig_Node_Expression_Name($token->getValue(), $token->getLine());
+                        }
+                }
+                break;
+
+            case Twig_Token::NUMBER_TYPE:
+                $this->parser->getStream()->next();
+                $node = new Twig_Node_Expression_Constant($token->getValue(), $token->getLine());
+                break;
+
+            case Twig_Token::STRING_TYPE:
+            case Twig_Token::INTERPOLATION_START_TYPE:
+                $node = $this->parseStringExpression();
+                break;
+
+            case Twig_Token::OPERATOR_TYPE:
+                if (preg_match(Twig_Lexer::REGEX_NAME, $token->getValue(), $matches) && $matches[0] == $token->getValue()) {
+                    // in this context, string operators are variable names
+                    $this->parser->getStream()->next();
+                    $node = new Twig_Node_Expression_Name($token->getValue(), $token->getLine());
+                    break;
+                } elseif (isset($this->unaryOperators[$token->getValue()])) {
+                    $class = $this->unaryOperators[$token->getValue()]['class'];
+
+                    $ref = new ReflectionClass($class);
+                    $negClass = 'Twig_Node_Expression_Unary_Neg';
+                    $posClass = 'Twig_Node_Expression_Unary_Pos';
+                    if (!(in_array($ref->getName(), array($negClass, $posClass)) || $ref->isSubclassOf($negClass) || $ref->isSubclassOf($posClass))) {
+                        throw new Twig_Error_Syntax(sprintf('Unexpected unary operator "%s".', $token->getValue()), $token->getLine(), $this->parser->getFilename());
+                    }
+
+                    $this->parser->getStream()->next();
+                    $expr = $this->parsePrimaryExpression();
+
+                    $node = new $class($expr, $token->getLine());
+                    break;
+                }
+
+            default:
+                if ($token->test(Twig_Token::PUNCTUATION_TYPE, '[')) {
+                    $node = $this->parseArrayExpression();
+                } elseif ($token->test(Twig_Token::PUNCTUATION_TYPE, '{')) {
+                    $node = $this->parseHashExpression();
+                } else {
+                    throw new Twig_Error_Syntax(sprintf('Unexpected token "%s" of value "%s".', Twig_Token::typeToEnglish($token->getType()), $token->getValue()), $token->getLine(), $this->parser->getFilename());
+                }
+        }
+
+        return $this->parsePostfixExpression($node);
+    }
+
+    public function parseStringExpression()
+    {
+        $stream = $this->parser->getStream();
+
+        $nodes = array();
+        // a string cannot be followed by another string in a single expression
+        $nextCanBeString = true;
+        while (true) {
+            if ($nextCanBeString && $token = $stream->nextIf(Twig_Token::STRING_TYPE)) {
+                $nodes[] = new Twig_Node_Expression_Constant($token->getValue(), $token->getLine());
+                $nextCanBeString = false;
+            } elseif ($stream->nextIf(Twig_Token::INTERPOLATION_START_TYPE)) {
+                $nodes[] = $this->parseExpression();
+                $stream->expect(Twig_Token::INTERPOLATION_END_TYPE);
+                $nextCanBeString = true;
+            } else {
+                break;
+            }
+        }
+
+        $expr = array_shift($nodes);
+        foreach ($nodes as $node) {
+            $expr = new Twig_Node_Expression_Binary_Concat($expr, $node, $node->getLine());
+        }
+
+        return $expr;
+    }
+
+    public function parseArrayExpression()
+    {
+        $stream = $this->parser->getStream();
+        $stream->expect(Twig_Token::PUNCTUATION_TYPE, '[', 'An array element was expected');
+
+        $node = new Twig_Node_Expression_Array(array(), $stream->getCurrent()->getLine());
+        $first = true;
+        while (!$stream->test(Twig_Token::PUNCTUATION_TYPE, ']')) {
+            if (!$first) {
+                $stream->expect(Twig_Token::PUNCTUATION_TYPE, ',', 'An array element must be followed by a comma');
+
+                // trailing ,?
+                if ($stream->test(Twig_Token::PUNCTUATION_TYPE, ']')) {
+                    break;
+                }
+            }
+            $first = false;
+
+            $node->addElement($this->parseExpression());
+        }
+        $stream->expect(Twig_Token::PUNCTUATION_TYPE, ']', 'An opened array is not properly closed');
+
+        return $node;
+    }
+
+    public function parseHashExpression()
+    {
+        $stream = $this->parser->getStream();
+        $stream->expect(Twig_Token::PUNCTUATION_TYPE, '{', 'A hash element was expected');
+
+        $node = new Twig_Node_Expression_Array(array(), $stream->getCurrent()->getLine());
+        $first = true;
+        while (!$stream->test(Twig_Token::PUNCTUATION_TYPE, '}')) {
+            if (!$first) {
+                $stream->expect(Twig_Token::PUNCTUATION_TYPE, ',', 'A hash value must be followed by a comma');
+
+                // trailing ,?
+                if ($stream->test(Twig_Token::PUNCTUATION_TYPE, '}')) {
+                    break;
+                }
+            }
+            $first = false;
+
+            // a hash key can be:
+            //
+            //  * a number -- 12
+            //  * a string -- 'a'
+            //  * a name, which is equivalent to a string -- a
+            //  * an expression, which must be enclosed in parentheses -- (1 + 2)
+            if (($token = $stream->nextIf(Twig_Token::STRING_TYPE)) || ($token = $stream->nextIf(Twig_Token::NAME_TYPE)) || $token = $stream->nextIf(Twig_Token::NUMBER_TYPE)) {
+                $key = new Twig_Node_Expression_Constant($token->getValue(), $token->getLine());
+            } elseif ($stream->test(Twig_Token::PUNCTUATION_TYPE, '(')) {
+                $key = $this->parseExpression();
+            } else {
+                $current = $stream->getCurrent();
+
+                throw new Twig_Error_Syntax(sprintf('A hash key must be a quoted string, a number, a name, or an expression enclosed in parentheses (unexpected token "%s" of value "%s".', Twig_Token::typeToEnglish($current->getType()), $current->getValue()), $current->getLine(), $this->parser->getFilename());
+            }
+
+            $stream->expect(Twig_Token::PUNCTUATION_TYPE, ':', 'A hash key must be followed by a colon (:)');
+            $value = $this->parseExpression();
+
+            $node->addElement($value, $key);
+        }
+        $stream->expect(Twig_Token::PUNCTUATION_TYPE, '}', 'An opened hash is not properly closed');
+
+        return $node;
+    }
+
+    public function parsePostfixExpression($node)
+    {
+        while (true) {
+            $token = $this->parser->getCurrentToken();
+            if ($token->getType() == Twig_Token::PUNCTUATION_TYPE) {
+                if ('.' == $token->getValue() || '[' == $token->getValue()) {
+                    $node = $this->parseSubscriptExpression($node);
+                } elseif ('|' == $token->getValue()) {
+                    $node = $this->parseFilterExpression($node);
+                } else {
+                    break;
+                }
+            } else {
+                break;
+            }
+        }
+
+        return $node;
+    }
+
+    public function getFunctionNode($name, $line)
+    {
+        switch ($name) {
+            case 'parent':
+                $this->parseArguments();
+                if (!count($this->parser->getBlockStack())) {
+                    throw new Twig_Error_Syntax('Calling "parent" outside a block is forbidden.', $line, $this->parser->getFilename());
+                }
+
+                if (!$this->parser->getParent() && !$this->parser->hasTraits()) {
+                    throw new Twig_Error_Syntax('Calling "parent" on a template that does not extend nor "use" another template is forbidden.', $line, $this->parser->getFilename());
+                }
+
+                return new Twig_Node_Expression_Parent($this->parser->peekBlockStack(), $line);
+            case 'block':
+                return new Twig_Node_Expression_BlockReference($this->parseArguments()->getNode(0), false, $line);
+            case 'attribute':
+                $args = $this->parseArguments();
+                if (count($args) < 2) {
+                    throw new Twig_Error_Syntax('The "attribute" function takes at least two arguments (the variable and the attributes).', $line, $this->parser->getFilename());
+                }
+
+                return new Twig_Node_Expression_GetAttr($args->getNode(0), $args->getNode(1), count($args) > 2 ? $args->getNode(2) : null, Twig_Template::ANY_CALL, $line);
+            default:
+                if (null !== $alias = $this->parser->getImportedSymbol('function', $name)) {
+                    $arguments = new Twig_Node_Expression_Array(array(), $line);
+                    foreach ($this->parseArguments() as $n) {
+                        $arguments->addElement($n);
+                    }
+
+                    $node = new Twig_Node_Expression_MethodCall($alias['node'], $alias['name'], $arguments, $line);
+                    $node->setAttribute('safe', true);
+
+                    return $node;
+                }
+
+                $args = $this->parseArguments(true);
+                $class = $this->getFunctionNodeClass($name, $line);
+
+                return new $class($name, $args, $line);
+        }
+    }
+
+    public function parseSubscriptExpression($node)
+    {
+        $stream = $this->parser->getStream();
+        $token = $stream->next();
+        $lineno = $token->getLine();
+        $arguments = new Twig_Node_Expression_Array(array(), $lineno);
+        $type = Twig_Template::ANY_CALL;
+        if ($token->getValue() == '.') {
+            $token = $stream->next();
+            if (
+                $token->getType() == Twig_Token::NAME_TYPE
+                ||
+                $token->getType() == Twig_Token::NUMBER_TYPE
+                ||
+                ($token->getType() == Twig_Token::OPERATOR_TYPE && preg_match(Twig_Lexer::REGEX_NAME, $token->getValue()))
+            ) {
+                $arg = new Twig_Node_Expression_Constant($token->getValue(), $lineno);
+
+                if ($stream->test(Twig_Token::PUNCTUATION_TYPE, '(')) {
+                    $type = Twig_Template::METHOD_CALL;
+                    foreach ($this->parseArguments() as $n) {
+                        $arguments->addElement($n);
+                    }
+                }
+            } else {
+                throw new Twig_Error_Syntax('Expected name or number', $lineno, $this->parser->getFilename());
+            }
+
+            if ($node instanceof Twig_Node_Expression_Name && null !== $this->parser->getImportedSymbol('template', $node->getAttribute('name'))) {
+                if (!$arg instanceof Twig_Node_Expression_Constant) {
+                    throw new Twig_Error_Syntax(sprintf('Dynamic macro names are not supported (called on "%s").', $node->getAttribute('name')), $token->getLine(), $this->parser->getFilename());
+                }
+
+                $name = $arg->getAttribute('value');
+
+                if ($this->parser->isReservedMacroName($name)) {
+                    throw new Twig_Error_Syntax(sprintf('"%s" cannot be called as macro as it is a reserved keyword.', $name), $token->getLine(), $this->parser->getFilename());
+                }
+
+                $node = new Twig_Node_Expression_MethodCall($node, 'get'.$name, $arguments, $lineno);
+                $node->setAttribute('safe', true);
+
+                return $node;
+            }
+        } else {
+            $type = Twig_Template::ARRAY_CALL;
+
+            // slice?
+            $slice = false;
+            if ($stream->test(Twig_Token::PUNCTUATION_TYPE, ':')) {
+                $slice = true;
+                $arg = new Twig_Node_Expression_Constant(0, $token->getLine());
+            } else {
+                $arg = $this->parseExpression();
+            }
+
+            if ($stream->nextIf(Twig_Token::PUNCTUATION_TYPE, ':')) {
+                $slice = true;
+            }
+
+            if ($slice) {
+                if ($stream->test(Twig_Token::PUNCTUATION_TYPE, ']')) {
+                    $length = new Twig_Node_Expression_Constant(null, $token->getLine());
+                } else {
+                    $length = $this->parseExpression();
+                }
+
+                $class = $this->getFilterNodeClass('slice', $token->getLine());
+                $arguments = new Twig_Node(array($arg, $length));
+                $filter = new $class($node, new Twig_Node_Expression_Constant('slice', $token->getLine()), $arguments, $token->getLine());
+
+                $stream->expect(Twig_Token::PUNCTUATION_TYPE, ']');
+
+                return $filter;
+            }
+
+            $stream->expect(Twig_Token::PUNCTUATION_TYPE, ']');
+        }
+
+        return new Twig_Node_Expression_GetAttr($node, $arg, $arguments, $type, $lineno);
+    }
+
+    public function parseFilterExpression($node)
+    {
+        $this->parser->getStream()->next();
+
+        return $this->parseFilterExpressionRaw($node);
+    }
+
+    public function parseFilterExpressionRaw($node, $tag = null)
+    {
+        while (true) {
+            $token = $this->parser->getStream()->expect(Twig_Token::NAME_TYPE);
+
+            $name = new Twig_Node_Expression_Constant($token->getValue(), $token->getLine());
+            if (!$this->parser->getStream()->test(Twig_Token::PUNCTUATION_TYPE, '(')) {
+                $arguments = new Twig_Node();
+            } else {
+                $arguments = $this->parseArguments(true);
+            }
+
+            $class = $this->getFilterNodeClass($name->getAttribute('value'), $token->getLine());
+
+            $node = new $class($node, $name, $arguments, $token->getLine(), $tag);
+
+            if (!$this->parser->getStream()->test(Twig_Token::PUNCTUATION_TYPE, '|')) {
+                break;
+            }
+
+            $this->parser->getStream()->next();
+        }
+
+        return $node;
+    }
+
+    /**
+     * Parses arguments.
+     *
+     * @param bool $namedArguments Whether to allow named arguments or not
+     * @param bool $definition     Whether we are parsing arguments for a function definition
+     *
+     * @return Twig_Node
+     *
+     * @throws Twig_Error_Syntax
+     */
+    public function parseArguments($namedArguments = false, $definition = false)
+    {
+        $args = array();
+        $stream = $this->parser->getStream();
+
+        $stream->expect(Twig_Token::PUNCTUATION_TYPE, '(', 'A list of arguments must begin with an opening parenthesis');
+        while (!$stream->test(Twig_Token::PUNCTUATION_TYPE, ')')) {
+            if (!empty($args)) {
+                $stream->expect(Twig_Token::PUNCTUATION_TYPE, ',', 'Arguments must be separated by a comma');
+            }
+
+            if ($definition) {
+                $token = $stream->expect(Twig_Token::NAME_TYPE, null, 'An argument must be a name');
+                $value = new Twig_Node_Expression_Name($token->getValue(), $this->parser->getCurrentToken()->getLine());
+            } else {
+                $value = $this->parseExpression();
+            }
+
+            $name = null;
+            if ($namedArguments && $token = $stream->nextIf(Twig_Token::OPERATOR_TYPE, '=')) {
+                if (!$value instanceof Twig_Node_Expression_Name) {
+                    throw new Twig_Error_Syntax(sprintf('A parameter name must be a string, "%s" given.', get_class($value)), $token->getLine(), $this->parser->getFilename());
+                }
+                $name = $value->getAttribute('name');
+
+                if ($definition) {
+                    $value = $this->parsePrimaryExpression();
+
+                    if (!$this->checkConstantExpression($value)) {
+                        throw new Twig_Error_Syntax(sprintf('A default value for an argument must be a constant (a boolean, a string, a number, or an array).'), $token->getLine(), $this->parser->getFilename());
+                    }
+                } else {
+                    $value = $this->parseExpression();
+                }
+            }
+
+            if ($definition) {
+                if (null === $name) {
+                    $name = $value->getAttribute('name');
+                    $value = new Twig_Node_Expression_Constant(null, $this->parser->getCurrentToken()->getLine());
+                }
+                $args[$name] = $value;
+            } else {
+                if (null === $name) {
+                    $args[] = $value;
+                } else {
+                    $args[$name] = $value;
+                }
+            }
+        }
+        $stream->expect(Twig_Token::PUNCTUATION_TYPE, ')', 'A list of arguments must be closed by a parenthesis');
+
+        return new Twig_Node($args);
+    }
+
+    public function parseAssignmentExpression()
+    {
+        $targets = array();
+        while (true) {
+            $token = $this->parser->getStream()->expect(Twig_Token::NAME_TYPE, null, 'Only variables can be assigned to');
+            if (in_array($token->getValue(), array('true', 'false', 'none'))) {
+                throw new Twig_Error_Syntax(sprintf('You cannot assign a value to "%s".', $token->getValue()), $token->getLine(), $this->parser->getFilename());
+            }
+            $targets[] = new Twig_Node_Expression_AssignName($token->getValue(), $token->getLine());
+
+            if (!$this->parser->getStream()->nextIf(Twig_Token::PUNCTUATION_TYPE, ',')) {
+                break;
+            }
+        }
+
+        return new Twig_Node($targets);
+    }
+
+    public function parseMultitargetExpression()
+    {
+        $targets = array();
+        while (true) {
+            $targets[] = $this->parseExpression();
+            if (!$this->parser->getStream()->nextIf(Twig_Token::PUNCTUATION_TYPE, ',')) {
+                break;
+            }
+        }
+
+        return new Twig_Node($targets);
+    }
+
+    protected function getFunctionNodeClass($name, $line)
+    {
+        $env = $this->parser->getEnvironment();
+
+        if (false === $function = $env->getFunction($name)) {
+            $e = new Twig_Error_Syntax(sprintf('Unknown "%s" function.', $name), $line, $this->parser->getFilename());
+            $e->addSuggestions($name, array_keys($env->getFunctions()));
+
+            throw $e;
+        }
+
+        if ($function instanceof Twig_SimpleFunction && $function->isDeprecated()) {
+            $message = sprintf('Twig Function "%s" is deprecated', $function->getName());
+            if (!is_bool($function->getDeprecatedVersion())) {
+                $message .= sprintf(' since version %s', $function->getDeprecatedVersion());
+            }
+            if ($function->getAlternative()) {
+                $message .= sprintf('. Use "%s" instead', $function->getAlternative());
+            }
+            $message .= sprintf(' in %s at line %d.', $this->parser->getFilename(), $line);
+
+            @trigger_error($message, E_USER_DEPRECATED);
+        }
+
+        if ($function instanceof Twig_SimpleFunction) {
+            return $function->getNodeClass();
+        }
+
+        return $function instanceof Twig_Function_Node ? $function->getClass() : 'Twig_Node_Expression_Function';
+    }
+
+    protected function getFilterNodeClass($name, $line)
+    {
+        $env = $this->parser->getEnvironment();
+
+        if (false === $filter = $env->getFilter($name)) {
+            $e = new Twig_Error_Syntax(sprintf('Unknown "%s" filter.', $name), $line, $this->parser->getFilename());
+            $e->addSuggestions($name, array_keys($env->getFilters()));
+
+            throw $e;
+        }
+
+        if ($filter instanceof Twig_SimpleFilter && $filter->isDeprecated()) {
+            $message = sprintf('Twig Filter "%s" is deprecated', $filter->getName());
+            if (!is_bool($filter->getDeprecatedVersion())) {
+                $message .= sprintf(' since version %s', $filter->getDeprecatedVersion());
+            }
+            if ($filter->getAlternative()) {
+                $message .= sprintf('. Use "%s" instead', $filter->getAlternative());
+            }
+            $message .= sprintf(' in %s at line %d.', $this->parser->getFilename(), $line);
+
+            @trigger_error($message, E_USER_DEPRECATED);
+        }
+
+        if ($filter instanceof Twig_SimpleFilter) {
+            return $filter->getNodeClass();
+        }
+
+        return $filter instanceof Twig_Filter_Node ? $filter->getClass() : 'Twig_Node_Expression_Filter';
+    }
+
+    // checks that the node only contains "constant" elements
+    protected function checkConstantExpression(Twig_NodeInterface $node)
+    {
+        if (!($node instanceof Twig_Node_Expression_Constant || $node instanceof Twig_Node_Expression_Array
+            || $node instanceof Twig_Node_Expression_Unary_Neg || $node instanceof Twig_Node_Expression_Unary_Pos
+        )) {
+            return false;
+        }
+
+        foreach ($node as $n) {
+            if (!$this->checkConstantExpression($n)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Extension.php b/vendor/twig/twig/lib/Twig/Extension.php
new file mode 100644
index 000000000..cb03b3de1
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Extension.php
@@ -0,0 +1,79 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+abstract class Twig_Extension implements Twig_ExtensionInterface
+{
+    /**
+     * {@inheritdoc}
+     *
+     * @deprecated since 1.23 (to be removed in 2.0), implement Twig_Extension_InitRuntimeInterface instead
+     */
+    public function initRuntime(Twig_Environment $environment)
+    {
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getTokenParsers()
+    {
+        return array();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getNodeVisitors()
+    {
+        return array();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getFilters()
+    {
+        return array();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getTests()
+    {
+        return array();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getFunctions()
+    {
+        return array();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getOperators()
+    {
+        return array();
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @deprecated since 1.23 (to be removed in 2.0), implement Twig_Extension_GlobalsInterface instead
+     */
+    public function getGlobals()
+    {
+        return array();
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Extension/Core.php b/vendor/twig/twig/lib/Twig/Extension/Core.php
new file mode 100644
index 000000000..79ef5210a
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Extension/Core.php
@@ -0,0 +1,1548 @@
+<?php
+
+if (!defined('ENT_SUBSTITUTE')) {
+    // use 0 as hhvm does not support several flags yet
+    define('ENT_SUBSTITUTE', 0);
+}
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Extension_Core extends Twig_Extension
+{
+    protected $dateFormats = array('F j, Y H:i', '%d days');
+    protected $numberFormat = array(0, '.', ',');
+    protected $timezone = null;
+    protected $escapers = array();
+
+    /**
+     * Defines a new escaper to be used via the escape filter.
+     *
+     * @param string   $strategy The strategy name that should be used as a strategy in the escape call
+     * @param callable $callable A valid PHP callable
+     */
+    public function setEscaper($strategy, $callable)
+    {
+        $this->escapers[$strategy] = $callable;
+    }
+
+    /**
+     * Gets all defined escapers.
+     *
+     * @return array An array of escapers
+     */
+    public function getEscapers()
+    {
+        return $this->escapers;
+    }
+
+    /**
+     * Sets the default format to be used by the date filter.
+     *
+     * @param string $format             The default date format string
+     * @param string $dateIntervalFormat The default date interval format string
+     */
+    public function setDateFormat($format = null, $dateIntervalFormat = null)
+    {
+        if (null !== $format) {
+            $this->dateFormats[0] = $format;
+        }
+
+        if (null !== $dateIntervalFormat) {
+            $this->dateFormats[1] = $dateIntervalFormat;
+        }
+    }
+
+    /**
+     * Gets the default format to be used by the date filter.
+     *
+     * @return array The default date format string and the default date interval format string
+     */
+    public function getDateFormat()
+    {
+        return $this->dateFormats;
+    }
+
+    /**
+     * Sets the default timezone to be used by the date filter.
+     *
+     * @param DateTimeZone|string $timezone The default timezone string or a DateTimeZone object
+     */
+    public function setTimezone($timezone)
+    {
+        $this->timezone = $timezone instanceof DateTimeZone ? $timezone : new DateTimeZone($timezone);
+    }
+
+    /**
+     * Gets the default timezone to be used by the date filter.
+     *
+     * @return DateTimeZone The default timezone currently in use
+     */
+    public function getTimezone()
+    {
+        if (null === $this->timezone) {
+            $this->timezone = new DateTimeZone(date_default_timezone_get());
+        }
+
+        return $this->timezone;
+    }
+
+    /**
+     * Sets the default format to be used by the number_format filter.
+     *
+     * @param int    $decimal      The number of decimal places to use.
+     * @param string $decimalPoint The character(s) to use for the decimal point.
+     * @param string $thousandSep  The character(s) to use for the thousands separator.
+     */
+    public function setNumberFormat($decimal, $decimalPoint, $thousandSep)
+    {
+        $this->numberFormat = array($decimal, $decimalPoint, $thousandSep);
+    }
+
+    /**
+     * Get the default format used by the number_format filter.
+     *
+     * @return array The arguments for number_format()
+     */
+    public function getNumberFormat()
+    {
+        return $this->numberFormat;
+    }
+
+    public function getTokenParsers()
+    {
+        return array(
+            new Twig_TokenParser_For(),
+            new Twig_TokenParser_If(),
+            new Twig_TokenParser_Extends(),
+            new Twig_TokenParser_Include(),
+            new Twig_TokenParser_Block(),
+            new Twig_TokenParser_Use(),
+            new Twig_TokenParser_Filter(),
+            new Twig_TokenParser_Macro(),
+            new Twig_TokenParser_Import(),
+            new Twig_TokenParser_From(),
+            new Twig_TokenParser_Set(),
+            new Twig_TokenParser_Spaceless(),
+            new Twig_TokenParser_Flush(),
+            new Twig_TokenParser_Do(),
+            new Twig_TokenParser_Embed(),
+        );
+    }
+
+    public function getFilters()
+    {
+        $filters = array(
+            // formatting filters
+            new Twig_SimpleFilter('date', 'twig_date_format_filter', array('needs_environment' => true)),
+            new Twig_SimpleFilter('date_modify', 'twig_date_modify_filter', array('needs_environment' => true)),
+            new Twig_SimpleFilter('format', 'sprintf'),
+            new Twig_SimpleFilter('replace', 'twig_replace_filter'),
+            new Twig_SimpleFilter('number_format', 'twig_number_format_filter', array('needs_environment' => true)),
+            new Twig_SimpleFilter('abs', 'abs'),
+            new Twig_SimpleFilter('round', 'twig_round'),
+
+            // encoding
+            new Twig_SimpleFilter('url_encode', 'twig_urlencode_filter'),
+            new Twig_SimpleFilter('json_encode', 'twig_jsonencode_filter'),
+            new Twig_SimpleFilter('convert_encoding', 'twig_convert_encoding'),
+
+            // string filters
+            new Twig_SimpleFilter('title', 'twig_title_string_filter', array('needs_environment' => true)),
+            new Twig_SimpleFilter('capitalize', 'twig_capitalize_string_filter', array('needs_environment' => true)),
+            new Twig_SimpleFilter('upper', 'strtoupper'),
+            new Twig_SimpleFilter('lower', 'strtolower'),
+            new Twig_SimpleFilter('striptags', 'strip_tags'),
+            new Twig_SimpleFilter('trim', 'trim'),
+            new Twig_SimpleFilter('nl2br', 'nl2br', array('pre_escape' => 'html', 'is_safe' => array('html'))),
+
+            // array helpers
+            new Twig_SimpleFilter('join', 'twig_join_filter'),
+            new Twig_SimpleFilter('split', 'twig_split_filter', array('needs_environment' => true)),
+            new Twig_SimpleFilter('sort', 'twig_sort_filter'),
+            new Twig_SimpleFilter('merge', 'twig_array_merge'),
+            new Twig_SimpleFilter('batch', 'twig_array_batch'),
+
+            // string/array filters
+            new Twig_SimpleFilter('reverse', 'twig_reverse_filter', array('needs_environment' => true)),
+            new Twig_SimpleFilter('length', 'twig_length_filter', array('needs_environment' => true)),
+            new Twig_SimpleFilter('slice', 'twig_slice', array('needs_environment' => true)),
+            new Twig_SimpleFilter('first', 'twig_first', array('needs_environment' => true)),
+            new Twig_SimpleFilter('last', 'twig_last', array('needs_environment' => true)),
+
+            // iteration and runtime
+            new Twig_SimpleFilter('default', '_twig_default_filter', array('node_class' => 'Twig_Node_Expression_Filter_Default')),
+            new Twig_SimpleFilter('keys', 'twig_get_array_keys_filter'),
+
+            // escaping
+            new Twig_SimpleFilter('escape', 'twig_escape_filter', array('needs_environment' => true, 'is_safe_callback' => 'twig_escape_filter_is_safe')),
+            new Twig_SimpleFilter('e', 'twig_escape_filter', array('needs_environment' => true, 'is_safe_callback' => 'twig_escape_filter_is_safe')),
+        );
+
+        if (function_exists('mb_get_info')) {
+            $filters[] = new Twig_SimpleFilter('upper', 'twig_upper_filter', array('needs_environment' => true));
+            $filters[] = new Twig_SimpleFilter('lower', 'twig_lower_filter', array('needs_environment' => true));
+        }
+
+        return $filters;
+    }
+
+    public function getFunctions()
+    {
+        return array(
+            new Twig_SimpleFunction('max', 'max'),
+            new Twig_SimpleFunction('min', 'min'),
+            new Twig_SimpleFunction('range', 'range'),
+            new Twig_SimpleFunction('constant', 'twig_constant'),
+            new Twig_SimpleFunction('cycle', 'twig_cycle'),
+            new Twig_SimpleFunction('random', 'twig_random', array('needs_environment' => true)),
+            new Twig_SimpleFunction('date', 'twig_date_converter', array('needs_environment' => true)),
+            new Twig_SimpleFunction('include', 'twig_include', array('needs_environment' => true, 'needs_context' => true, 'is_safe' => array('all'))),
+            new Twig_SimpleFunction('source', 'twig_source', array('needs_environment' => true, 'is_safe' => array('all'))),
+        );
+    }
+
+    public function getTests()
+    {
+        return array(
+            new Twig_SimpleTest('even', null, array('node_class' => 'Twig_Node_Expression_Test_Even')),
+            new Twig_SimpleTest('odd', null, array('node_class' => 'Twig_Node_Expression_Test_Odd')),
+            new Twig_SimpleTest('defined', null, array('node_class' => 'Twig_Node_Expression_Test_Defined')),
+            new Twig_SimpleTest('sameas', null, array('node_class' => 'Twig_Node_Expression_Test_Sameas', 'deprecated' => '1.21', 'alternative' => 'same as')),
+            new Twig_SimpleTest('same as', null, array('node_class' => 'Twig_Node_Expression_Test_Sameas')),
+            new Twig_SimpleTest('none', null, array('node_class' => 'Twig_Node_Expression_Test_Null')),
+            new Twig_SimpleTest('null', null, array('node_class' => 'Twig_Node_Expression_Test_Null')),
+            new Twig_SimpleTest('divisibleby', null, array('node_class' => 'Twig_Node_Expression_Test_Divisibleby', 'deprecated' => '1.21', 'alternative' => 'divisible by')),
+            new Twig_SimpleTest('divisible by', null, array('node_class' => 'Twig_Node_Expression_Test_Divisibleby')),
+            new Twig_SimpleTest('constant', null, array('node_class' => 'Twig_Node_Expression_Test_Constant')),
+            new Twig_SimpleTest('empty', 'twig_test_empty'),
+            new Twig_SimpleTest('iterable', 'twig_test_iterable'),
+        );
+    }
+
+    public function getOperators()
+    {
+        return array(
+            array(
+                'not' => array('precedence' => 50, 'class' => 'Twig_Node_Expression_Unary_Not'),
+                '-' => array('precedence' => 500, 'class' => 'Twig_Node_Expression_Unary_Neg'),
+                '+' => array('precedence' => 500, 'class' => 'Twig_Node_Expression_Unary_Pos'),
+            ),
+            array(
+                'or' => array('precedence' => 10, 'class' => 'Twig_Node_Expression_Binary_Or', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                'and' => array('precedence' => 15, 'class' => 'Twig_Node_Expression_Binary_And', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                'b-or' => array('precedence' => 16, 'class' => 'Twig_Node_Expression_Binary_BitwiseOr', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                'b-xor' => array('precedence' => 17, 'class' => 'Twig_Node_Expression_Binary_BitwiseXor', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                'b-and' => array('precedence' => 18, 'class' => 'Twig_Node_Expression_Binary_BitwiseAnd', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                '==' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_Equal', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                '!=' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_NotEqual', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                '<' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_Less', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                '>' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_Greater', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                '>=' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_GreaterEqual', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                '<=' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_LessEqual', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                'not in' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_NotIn', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                'in' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_In', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                'matches' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_Matches', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                'starts with' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_StartsWith', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                'ends with' => array('precedence' => 20, 'class' => 'Twig_Node_Expression_Binary_EndsWith', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                '..' => array('precedence' => 25, 'class' => 'Twig_Node_Expression_Binary_Range', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                '+' => array('precedence' => 30, 'class' => 'Twig_Node_Expression_Binary_Add', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                '-' => array('precedence' => 30, 'class' => 'Twig_Node_Expression_Binary_Sub', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                '~' => array('precedence' => 40, 'class' => 'Twig_Node_Expression_Binary_Concat', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                '*' => array('precedence' => 60, 'class' => 'Twig_Node_Expression_Binary_Mul', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                '/' => array('precedence' => 60, 'class' => 'Twig_Node_Expression_Binary_Div', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                '//' => array('precedence' => 60, 'class' => 'Twig_Node_Expression_Binary_FloorDiv', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                '%' => array('precedence' => 60, 'class' => 'Twig_Node_Expression_Binary_Mod', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                'is' => array('precedence' => 100, 'callable' => array($this, 'parseTestExpression'), 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                'is not' => array('precedence' => 100, 'callable' => array($this, 'parseNotTestExpression'), 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
+                '**' => array('precedence' => 200, 'class' => 'Twig_Node_Expression_Binary_Power', 'associativity' => Twig_ExpressionParser::OPERATOR_RIGHT),
+                '??' => array('precedence' => 300, 'class' => 'Twig_Node_Expression_NullCoalesce', 'associativity' => Twig_ExpressionParser::OPERATOR_RIGHT),
+            ),
+        );
+    }
+
+    public function parseNotTestExpression(Twig_Parser $parser, Twig_NodeInterface $node)
+    {
+        return new Twig_Node_Expression_Unary_Not($this->parseTestExpression($parser, $node), $parser->getCurrentToken()->getLine());
+    }
+
+    public function parseTestExpression(Twig_Parser $parser, Twig_NodeInterface $node)
+    {
+        $stream = $parser->getStream();
+        list($name, $test) = $this->getTest($parser, $node->getLine());
+
+        if ($test instanceof Twig_SimpleTest && $test->isDeprecated()) {
+            $message = sprintf('Twig Test "%s" is deprecated', $name);
+            if (!is_bool($test->getDeprecatedVersion())) {
+                $message .= sprintf(' since version %s', $test->getDeprecatedVersion());
+            }
+            if ($test->getAlternative()) {
+                $message .= sprintf('. Use "%s" instead', $test->getAlternative());
+            }
+            $message .= sprintf(' in %s at line %d.', $stream->getFilename(), $stream->getCurrent()->getLine());
+
+            @trigger_error($message, E_USER_DEPRECATED);
+        }
+
+        $class = $this->getTestNodeClass($parser, $test);
+        $arguments = null;
+        if ($stream->test(Twig_Token::PUNCTUATION_TYPE, '(')) {
+            $arguments = $parser->getExpressionParser()->parseArguments(true);
+        }
+
+        return new $class($node, $name, $arguments, $parser->getCurrentToken()->getLine());
+    }
+
+    protected function getTest(Twig_Parser $parser, $line)
+    {
+        $stream = $parser->getStream();
+        $name = $stream->expect(Twig_Token::NAME_TYPE)->getValue();
+        $env = $parser->getEnvironment();
+
+        if ($test = $env->getTest($name)) {
+            return array($name, $test);
+        }
+
+        if ($stream->test(Twig_Token::NAME_TYPE)) {
+            // try 2-words tests
+            $name = $name.' '.$parser->getCurrentToken()->getValue();
+
+            if ($test = $env->getTest($name)) {
+                $parser->getStream()->next();
+
+                return array($name, $test);
+            }
+        }
+
+        $e = new Twig_Error_Syntax(sprintf('Unknown "%s" test.', $name), $line, $parser->getFilename());
+        $e->addSuggestions($name, array_keys($env->getTests()));
+
+        throw $e;
+    }
+
+    protected function getTestNodeClass(Twig_Parser $parser, $test)
+    {
+        if ($test instanceof Twig_SimpleTest) {
+            return $test->getNodeClass();
+        }
+
+        return $test instanceof Twig_Test_Node ? $test->getClass() : 'Twig_Node_Expression_Test';
+    }
+
+    public function getName()
+    {
+        return 'core';
+    }
+}
+
+/**
+ * Cycles over a value.
+ *
+ * @param ArrayAccess|array $values   An array or an ArrayAccess instance
+ * @param int               $position The cycle position
+ *
+ * @return string The next value in the cycle
+ */
+function twig_cycle($values, $position)
+{
+    if (!is_array($values) && !$values instanceof ArrayAccess) {
+        return $values;
+    }
+
+    return $values[$position % count($values)];
+}
+
+/**
+ * Returns a random value depending on the supplied parameter type:
+ * - a random item from a Traversable or array
+ * - a random character from a string
+ * - a random integer between 0 and the integer parameter.
+ *
+ * @param Twig_Environment             $env    A Twig_Environment instance
+ * @param Traversable|array|int|string $values The values to pick a random item from
+ *
+ * @throws Twig_Error_Runtime When $values is an empty array (does not apply to an empty string which is returned as is).
+ *
+ * @return mixed A random value from the given sequence
+ */
+function twig_random(Twig_Environment $env, $values = null)
+{
+    if (null === $values) {
+        return mt_rand();
+    }
+
+    if (is_int($values) || is_float($values)) {
+        return $values < 0 ? mt_rand($values, 0) : mt_rand(0, $values);
+    }
+
+    if ($values instanceof Traversable) {
+        $values = iterator_to_array($values);
+    } elseif (is_string($values)) {
+        if ('' === $values) {
+            return '';
+        }
+        if (null !== $charset = $env->getCharset()) {
+            if ('UTF-8' !== $charset) {
+                $values = twig_convert_encoding($values, 'UTF-8', $charset);
+            }
+
+            // unicode version of str_split()
+            // split at all positions, but not after the start and not before the end
+            $values = preg_split('/(?<!^)(?!$)/u', $values);
+
+            if ('UTF-8' !== $charset) {
+                foreach ($values as $i => $value) {
+                    $values[$i] = twig_convert_encoding($value, $charset, 'UTF-8');
+                }
+            }
+        } else {
+            return $values[mt_rand(0, strlen($values) - 1)];
+        }
+    }
+
+    if (!is_array($values)) {
+        return $values;
+    }
+
+    if (0 === count($values)) {
+        throw new Twig_Error_Runtime('The random function cannot pick from an empty array.');
+    }
+
+    return $values[array_rand($values, 1)];
+}
+
+/**
+ * Converts a date to the given format.
+ *
+ * <pre>
+ *   {{ post.published_at|date("m/d/Y") }}
+ * </pre>
+ *
+ * @param Twig_Environment                               $env      A Twig_Environment instance
+ * @param DateTime|DateTimeInterface|DateInterval|string $date     A date
+ * @param string|null                                    $format   The target format, null to use the default
+ * @param DateTimeZone|string|null|false                 $timezone The target timezone, null to use the default, false to leave unchanged
+ *
+ * @return string The formatted date
+ */
+function twig_date_format_filter(Twig_Environment $env, $date, $format = null, $timezone = null)
+{
+    if (null === $format) {
+        $formats = $env->getExtension('core')->getDateFormat();
+        $format = $date instanceof DateInterval ? $formats[1] : $formats[0];
+    }
+
+    if ($date instanceof DateInterval) {
+        return $date->format($format);
+    }
+
+    return twig_date_converter($env, $date, $timezone)->format($format);
+}
+
+/**
+ * Returns a new date object modified.
+ *
+ * <pre>
+ *   {{ post.published_at|date_modify("-1day")|date("m/d/Y") }}
+ * </pre>
+ *
+ * @param Twig_Environment $env      A Twig_Environment instance
+ * @param DateTime|string  $date     A date
+ * @param string           $modifier A modifier string
+ *
+ * @return DateTime A new date object
+ */
+function twig_date_modify_filter(Twig_Environment $env, $date, $modifier)
+{
+    $date = twig_date_converter($env, $date, false);
+    $resultDate = $date->modify($modifier);
+
+    // This is a hack to ensure PHP 5.2 support and support for DateTimeImmutable
+    // DateTime::modify does not return the modified DateTime object < 5.3.0
+    // and DateTimeImmutable does not modify $date.
+    return null === $resultDate ? $date : $resultDate;
+}
+
+/**
+ * Converts an input to a DateTime instance.
+ *
+ * <pre>
+ *    {% if date(user.created_at) < date('+2days') %}
+ *      {# do something #}
+ *    {% endif %}
+ * </pre>
+ *
+ * @param Twig_Environment                       $env      A Twig_Environment instance
+ * @param DateTime|DateTimeInterface|string|null $date     A date
+ * @param DateTimeZone|string|null|false         $timezone The target timezone, null to use the default, false to leave unchanged
+ *
+ * @return DateTime A DateTime instance
+ */
+function twig_date_converter(Twig_Environment $env, $date = null, $timezone = null)
+{
+    // determine the timezone
+    if (false !== $timezone) {
+        if (null === $timezone) {
+            $timezone = $env->getExtension('core')->getTimezone();
+        } elseif (!$timezone instanceof DateTimeZone) {
+            $timezone = new DateTimeZone($timezone);
+        }
+    }
+
+    // immutable dates
+    if ($date instanceof DateTimeImmutable) {
+        return false !== $timezone ? $date->setTimezone($timezone) : $date;
+    }
+
+    if ($date instanceof DateTime || $date instanceof DateTimeInterface) {
+        $date = clone $date;
+        if (false !== $timezone) {
+            $date->setTimezone($timezone);
+        }
+
+        return $date;
+    }
+
+    if (null === $date || 'now' === $date) {
+        return new DateTime($date, false !== $timezone ? $timezone : $env->getExtension('core')->getTimezone());
+    }
+
+    $asString = (string) $date;
+    if (ctype_digit($asString) || (!empty($asString) && '-' === $asString[0] && ctype_digit(substr($asString, 1)))) {
+        $date = new DateTime('@'.$date);
+    } else {
+        $date = new DateTime($date, $env->getExtension('core')->getTimezone());
+    }
+
+    if (false !== $timezone) {
+        $date->setTimezone($timezone);
+    }
+
+    return $date;
+}
+
+/**
+ * Replaces strings within a string.
+ *
+ * @param string            $str  String to replace in
+ * @param array|Traversable $from Replace values
+ * @param string|null       $to   Replace to, deprecated (@see http://php.net/manual/en/function.strtr.php)
+ *
+ * @return string
+ */
+function twig_replace_filter($str, $from, $to = null)
+{
+    if ($from instanceof Traversable) {
+        $from = iterator_to_array($from);
+    } elseif (is_string($from) && is_string($to)) {
+        @trigger_error('Using "replace" with character by character replacement is deprecated since version 1.22 and will be removed in Twig 2.0', E_USER_DEPRECATED);
+
+        return strtr($str, $from, $to);
+    } elseif (!is_array($from)) {
+        throw new Twig_Error_Runtime(sprintf('The "replace" filter expects an array or "Traversable" as replace values, got "%s".',is_object($from) ? get_class($from) : gettype($from)));
+    }
+
+    return strtr($str, $from);
+}
+
+/**
+ * Rounds a number.
+ *
+ * @param int|float $value     The value to round
+ * @param int|float $precision The rounding precision
+ * @param string    $method    The method to use for rounding
+ *
+ * @return int|float The rounded number
+ */
+function twig_round($value, $precision = 0, $method = 'common')
+{
+    if ('common' == $method) {
+        return round($value, $precision);
+    }
+
+    if ('ceil' != $method && 'floor' != $method) {
+        throw new Twig_Error_Runtime('The round filter only supports the "common", "ceil", and "floor" methods.');
+    }
+
+    return $method($value * pow(10, $precision)) / pow(10, $precision);
+}
+
+/**
+ * Number format filter.
+ *
+ * All of the formatting options can be left null, in that case the defaults will
+ * be used.  Supplying any of the parameters will override the defaults set in the
+ * environment object.
+ *
+ * @param Twig_Environment $env          A Twig_Environment instance
+ * @param mixed            $number       A float/int/string of the number to format
+ * @param int              $decimal      The number of decimal points to display.
+ * @param string           $decimalPoint The character(s) to use for the decimal point.
+ * @param string           $thousandSep  The character(s) to use for the thousands separator.
+ *
+ * @return string The formatted number
+ */
+function twig_number_format_filter(Twig_Environment $env, $number, $decimal = null, $decimalPoint = null, $thousandSep = null)
+{
+    $defaults = $env->getExtension('core')->getNumberFormat();
+    if (null === $decimal) {
+        $decimal = $defaults[0];
+    }
+
+    if (null === $decimalPoint) {
+        $decimalPoint = $defaults[1];
+    }
+
+    if (null === $thousandSep) {
+        $thousandSep = $defaults[2];
+    }
+
+    return number_format((float) $number, $decimal, $decimalPoint, $thousandSep);
+}
+
+/**
+ * URL encodes (RFC 3986) a string as a path segment or an array as a query string.
+ *
+ * @param string|array $url A URL or an array of query parameters
+ *
+ * @return string The URL encoded value
+ */
+function twig_urlencode_filter($url)
+{
+    if (is_array($url)) {
+        if (defined('PHP_QUERY_RFC3986')) {
+            return http_build_query($url, '', '&', PHP_QUERY_RFC3986);
+        }
+
+        return http_build_query($url, '', '&');
+    }
+
+    return rawurlencode($url);
+}
+
+if (PHP_VERSION_ID < 50300) {
+    /**
+     * JSON encodes a variable.
+     *
+     * @param mixed $value   The value to encode.
+     * @param int   $options Not used on PHP 5.2.x
+     *
+     * @return mixed The JSON encoded value
+     */
+    function twig_jsonencode_filter($value, $options = 0)
+    {
+        if ($value instanceof Twig_Markup) {
+            $value = (string) $value;
+        } elseif (is_array($value)) {
+            array_walk_recursive($value, '_twig_markup2string');
+        }
+
+        return json_encode($value);
+    }
+} else {
+    /**
+     * JSON encodes a variable.
+     *
+     * @param mixed $value   The value to encode.
+     * @param int   $options Bitmask consisting of JSON_HEX_QUOT, JSON_HEX_TAG, JSON_HEX_AMP, JSON_HEX_APOS, JSON_NUMERIC_CHECK, JSON_PRETTY_PRINT, JSON_UNESCAPED_SLASHES, JSON_FORCE_OBJECT
+     *
+     * @return mixed The JSON encoded value
+     */
+    function twig_jsonencode_filter($value, $options = 0)
+    {
+        if ($value instanceof Twig_Markup) {
+            $value = (string) $value;
+        } elseif (is_array($value)) {
+            array_walk_recursive($value, '_twig_markup2string');
+        }
+
+        return json_encode($value, $options);
+    }
+}
+
+function _twig_markup2string(&$value)
+{
+    if ($value instanceof Twig_Markup) {
+        $value = (string) $value;
+    }
+}
+
+/**
+ * Merges an array with another one.
+ *
+ * <pre>
+ *  {% set items = { 'apple': 'fruit', 'orange': 'fruit' } %}
+ *
+ *  {% set items = items|merge({ 'peugeot': 'car' }) %}
+ *
+ *  {# items now contains { 'apple': 'fruit', 'orange': 'fruit', 'peugeot': 'car' } #}
+ * </pre>
+ *
+ * @param array|Traversable $arr1 An array
+ * @param array|Traversable $arr2 An array
+ *
+ * @return array The merged array
+ */
+function twig_array_merge($arr1, $arr2)
+{
+    if ($arr1 instanceof Traversable) {
+        $arr1 = iterator_to_array($arr1);
+    } elseif (!is_array($arr1)) {
+        throw new Twig_Error_Runtime(sprintf('The merge filter only works with arrays or "Traversable", got "%s" as first argument.', gettype($arr1)));
+    }
+
+    if ($arr2 instanceof Traversable) {
+        $arr2 = iterator_to_array($arr2);
+    } elseif (!is_array($arr2)) {
+        throw new Twig_Error_Runtime(sprintf('The merge filter only works with arrays or "Traversable", got "%s" as second argument.', gettype($arr2)));
+    }
+
+    return array_merge($arr1, $arr2);
+}
+
+/**
+ * Slices a variable.
+ *
+ * @param Twig_Environment $env          A Twig_Environment instance
+ * @param mixed            $item         A variable
+ * @param int              $start        Start of the slice
+ * @param int              $length       Size of the slice
+ * @param bool             $preserveKeys Whether to preserve key or not (when the input is an array)
+ *
+ * @return mixed The sliced variable
+ */
+function twig_slice(Twig_Environment $env, $item, $start, $length = null, $preserveKeys = false)
+{
+    if ($item instanceof Traversable) {
+        if ($item instanceof IteratorAggregate) {
+            $item = $item->getIterator();
+        }
+
+        if ($start >= 0 && $length >= 0 && $item instanceof Iterator) {
+            try {
+                return iterator_to_array(new LimitIterator($item, $start, $length === null ? -1 : $length), $preserveKeys);
+            } catch (OutOfBoundsException $exception) {
+                return array();
+            }
+        }
+
+        $item = iterator_to_array($item, $preserveKeys);
+    }
+
+    if (is_array($item)) {
+        return array_slice($item, $start, $length, $preserveKeys);
+    }
+
+    $item = (string) $item;
+
+    if (function_exists('mb_get_info') && null !== $charset = $env->getCharset()) {
+        return (string) mb_substr($item, $start, null === $length ? mb_strlen($item, $charset) - $start : $length, $charset);
+    }
+
+    return (string) (null === $length ? substr($item, $start) : substr($item, $start, $length));
+}
+
+/**
+ * Returns the first element of the item.
+ *
+ * @param Twig_Environment $env  A Twig_Environment instance
+ * @param mixed            $item A variable
+ *
+ * @return mixed The first element of the item
+ */
+function twig_first(Twig_Environment $env, $item)
+{
+    $elements = twig_slice($env, $item, 0, 1, false);
+
+    return is_string($elements) ? $elements : current($elements);
+}
+
+/**
+ * Returns the last element of the item.
+ *
+ * @param Twig_Environment $env  A Twig_Environment instance
+ * @param mixed            $item A variable
+ *
+ * @return mixed The last element of the item
+ */
+function twig_last(Twig_Environment $env, $item)
+{
+    $elements = twig_slice($env, $item, -1, 1, false);
+
+    return is_string($elements) ? $elements : current($elements);
+}
+
+/**
+ * Joins the values to a string.
+ *
+ * The separator between elements is an empty string per default, you can define it with the optional parameter.
+ *
+ * <pre>
+ *  {{ [1, 2, 3]|join('|') }}
+ *  {# returns 1|2|3 #}
+ *
+ *  {{ [1, 2, 3]|join }}
+ *  {# returns 123 #}
+ * </pre>
+ *
+ * @param array  $value An array
+ * @param string $glue  The separator
+ *
+ * @return string The concatenated string
+ */
+function twig_join_filter($value, $glue = '')
+{
+    if ($value instanceof Traversable) {
+        $value = iterator_to_array($value, false);
+    }
+
+    return implode($glue, (array) $value);
+}
+
+/**
+ * Splits the string into an array.
+ *
+ * <pre>
+ *  {{ "one,two,three"|split(',') }}
+ *  {# returns [one, two, three] #}
+ *
+ *  {{ "one,two,three,four,five"|split(',', 3) }}
+ *  {# returns [one, two, "three,four,five"] #}
+ *
+ *  {{ "123"|split('') }}
+ *  {# returns [1, 2, 3] #}
+ *
+ *  {{ "aabbcc"|split('', 2) }}
+ *  {# returns [aa, bb, cc] #}
+ * </pre>
+ *
+ * @param Twig_Environment $env       A Twig_Environment instance
+ * @param string           $value     A string
+ * @param string           $delimiter The delimiter
+ * @param int              $limit     The limit
+ *
+ * @return array The split string as an array
+ */
+function twig_split_filter(Twig_Environment $env, $value, $delimiter, $limit = null)
+{
+    if (!empty($delimiter)) {
+        return null === $limit ? explode($delimiter, $value) : explode($delimiter, $value, $limit);
+    }
+
+    if (!function_exists('mb_get_info') || null === $charset = $env->getCharset()) {
+        return str_split($value, null === $limit ? 1 : $limit);
+    }
+
+    if ($limit <= 1) {
+        return preg_split('/(?<!^)(?!$)/u', $value);
+    }
+
+    $length = mb_strlen($value, $charset);
+    if ($length < $limit) {
+        return array($value);
+    }
+
+    $r = array();
+    for ($i = 0; $i < $length; $i += $limit) {
+        $r[] = mb_substr($value, $i, $limit, $charset);
+    }
+
+    return $r;
+}
+
+// The '_default' filter is used internally to avoid using the ternary operator
+// which costs a lot for big contexts (before PHP 5.4). So, on average,
+// a function call is cheaper.
+/**
+ * @internal
+ */
+function _twig_default_filter($value, $default = '')
+{
+    if (twig_test_empty($value)) {
+        return $default;
+    }
+
+    return $value;
+}
+
+/**
+ * Returns the keys for the given array.
+ *
+ * It is useful when you want to iterate over the keys of an array:
+ *
+ * <pre>
+ *  {% for key in array|keys %}
+ *      {# ... #}
+ *  {% endfor %}
+ * </pre>
+ *
+ * @param array $array An array
+ *
+ * @return array The keys
+ */
+function twig_get_array_keys_filter($array)
+{
+    if ($array instanceof Traversable) {
+        return array_keys(iterator_to_array($array));
+    }
+
+    if (!is_array($array)) {
+        return array();
+    }
+
+    return array_keys($array);
+}
+
+/**
+ * Reverses a variable.
+ *
+ * @param Twig_Environment         $env          A Twig_Environment instance
+ * @param array|Traversable|string $item         An array, a Traversable instance, or a string
+ * @param bool                     $preserveKeys Whether to preserve key or not
+ *
+ * @return mixed The reversed input
+ */
+function twig_reverse_filter(Twig_Environment $env, $item, $preserveKeys = false)
+{
+    if ($item instanceof Traversable) {
+        return array_reverse(iterator_to_array($item), $preserveKeys);
+    }
+
+    if (is_array($item)) {
+        return array_reverse($item, $preserveKeys);
+    }
+
+    if (null !== $charset = $env->getCharset()) {
+        $string = (string) $item;
+
+        if ('UTF-8' !== $charset) {
+            $item = twig_convert_encoding($string, 'UTF-8', $charset);
+        }
+
+        preg_match_all('/./us', $item, $matches);
+
+        $string = implode('', array_reverse($matches[0]));
+
+        if ('UTF-8' !== $charset) {
+            $string = twig_convert_encoding($string, $charset, 'UTF-8');
+        }
+
+        return $string;
+    }
+
+    return strrev((string) $item);
+}
+
+/**
+ * Sorts an array.
+ *
+ * @param array|Traversable $array
+ *
+ * @return array
+ */
+function twig_sort_filter($array)
+{
+    if ($array instanceof Traversable) {
+        $array = iterator_to_array($array);
+    } elseif (!is_array($array)) {
+        throw new Twig_Error_Runtime(sprintf('The sort filter only works with arrays or "Traversable", got "%s".', gettype($array)));
+    }
+
+    asort($array);
+
+    return $array;
+}
+
+/**
+ * @internal
+ */
+function twig_in_filter($value, $compare)
+{
+    if (is_array($compare)) {
+        return in_array($value, $compare, is_object($value) || is_resource($value));
+    } elseif (is_string($compare) && (is_string($value) || is_int($value) || is_float($value))) {
+        return '' === $value || false !== strpos($compare, (string) $value);
+    } elseif ($compare instanceof Traversable) {
+        return in_array($value, iterator_to_array($compare, false), is_object($value) || is_resource($value));
+    }
+
+    return false;
+}
+
+/**
+ * Escapes a string.
+ *
+ * @param Twig_Environment $env        A Twig_Environment instance
+ * @param string           $string     The value to be escaped
+ * @param string           $strategy   The escaping strategy
+ * @param string           $charset    The charset
+ * @param bool             $autoescape Whether the function is called by the auto-escaping feature (true) or by the developer (false)
+ *
+ * @return string
+ */
+function twig_escape_filter(Twig_Environment $env, $string, $strategy = 'html', $charset = null, $autoescape = false)
+{
+    if ($autoescape && $string instanceof Twig_Markup) {
+        return $string;
+    }
+
+    if (!is_string($string)) {
+        if (is_object($string) && method_exists($string, '__toString')) {
+            $string = (string) $string;
+        } elseif (in_array($strategy, array('html', 'js', 'css', 'html_attr', 'url'))) {
+            return $string;
+        }
+    }
+
+    if (null === $charset) {
+        $charset = $env->getCharset();
+    }
+
+    switch ($strategy) {
+        case 'html':
+            // see http://php.net/htmlspecialchars
+
+            // Using a static variable to avoid initializing the array
+            // each time the function is called. Moving the declaration on the
+            // top of the function slow downs other escaping strategies.
+            static $htmlspecialcharsCharsets;
+
+            if (null === $htmlspecialcharsCharsets) {
+                if (defined('HHVM_VERSION')) {
+                    $htmlspecialcharsCharsets = array('utf-8' => true, 'UTF-8' => true);
+                } else {
+                    $htmlspecialcharsCharsets = array(
+                        'ISO-8859-1' => true, 'ISO8859-1' => true,
+                        'ISO-8859-15' => true, 'ISO8859-15' => true,
+                        'utf-8' => true, 'UTF-8' => true,
+                        'CP866' => true, 'IBM866' => true, '866' => true,
+                        'CP1251' => true, 'WINDOWS-1251' => true, 'WIN-1251' => true,
+                        '1251' => true,
+                        'CP1252' => true, 'WINDOWS-1252' => true, '1252' => true,
+                        'KOI8-R' => true, 'KOI8-RU' => true, 'KOI8R' => true,
+                        'BIG5' => true, '950' => true,
+                        'GB2312' => true, '936' => true,
+                        'BIG5-HKSCS' => true,
+                        'SHIFT_JIS' => true, 'SJIS' => true, '932' => true,
+                        'EUC-JP' => true, 'EUCJP' => true,
+                        'ISO8859-5' => true, 'ISO-8859-5' => true, 'MACROMAN' => true,
+                    );
+                }
+            }
+
+            if (isset($htmlspecialcharsCharsets[$charset])) {
+                return htmlspecialchars($string, ENT_QUOTES | ENT_SUBSTITUTE, $charset);
+            }
+
+            if (isset($htmlspecialcharsCharsets[strtoupper($charset)])) {
+                // cache the lowercase variant for future iterations
+                $htmlspecialcharsCharsets[$charset] = true;
+
+                return htmlspecialchars($string, ENT_QUOTES | ENT_SUBSTITUTE, $charset);
+            }
+
+            $string = twig_convert_encoding($string, 'UTF-8', $charset);
+            $string = htmlspecialchars($string, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8');
+
+            return twig_convert_encoding($string, $charset, 'UTF-8');
+
+        case 'js':
+            // escape all non-alphanumeric characters
+            // into their \xHH or \uHHHH representations
+            if ('UTF-8' !== $charset) {
+                $string = twig_convert_encoding($string, 'UTF-8', $charset);
+            }
+
+            if (0 == strlen($string) ? false : (1 == preg_match('/^./su', $string) ? false : true)) {
+                throw new Twig_Error_Runtime('The string to escape is not a valid UTF-8 string.');
+            }
+
+            $string = preg_replace_callback('#[^a-zA-Z0-9,\._]#Su', '_twig_escape_js_callback', $string);
+
+            if ('UTF-8' !== $charset) {
+                $string = twig_convert_encoding($string, $charset, 'UTF-8');
+            }
+
+            return $string;
+
+        case 'css':
+            if ('UTF-8' !== $charset) {
+                $string = twig_convert_encoding($string, 'UTF-8', $charset);
+            }
+
+            if (0 == strlen($string) ? false : (1 == preg_match('/^./su', $string) ? false : true)) {
+                throw new Twig_Error_Runtime('The string to escape is not a valid UTF-8 string.');
+            }
+
+            $string = preg_replace_callback('#[^a-zA-Z0-9]#Su', '_twig_escape_css_callback', $string);
+
+            if ('UTF-8' !== $charset) {
+                $string = twig_convert_encoding($string, $charset, 'UTF-8');
+            }
+
+            return $string;
+
+        case 'html_attr':
+            if ('UTF-8' !== $charset) {
+                $string = twig_convert_encoding($string, 'UTF-8', $charset);
+            }
+
+            if (0 == strlen($string) ? false : (1 == preg_match('/^./su', $string) ? false : true)) {
+                throw new Twig_Error_Runtime('The string to escape is not a valid UTF-8 string.');
+            }
+
+            $string = preg_replace_callback('#[^a-zA-Z0-9,\.\-_]#Su', '_twig_escape_html_attr_callback', $string);
+
+            if ('UTF-8' !== $charset) {
+                $string = twig_convert_encoding($string, $charset, 'UTF-8');
+            }
+
+            return $string;
+
+        case 'url':
+            if (PHP_VERSION_ID < 50300) {
+                return str_replace('%7E', '~', rawurlencode($string));
+            }
+
+            return rawurlencode($string);
+
+        default:
+            static $escapers;
+
+            if (null === $escapers) {
+                $escapers = $env->getExtension('core')->getEscapers();
+            }
+
+            if (isset($escapers[$strategy])) {
+                return call_user_func($escapers[$strategy], $env, $string, $charset);
+            }
+
+            $validStrategies = implode(', ', array_merge(array('html', 'js', 'url', 'css', 'html_attr'), array_keys($escapers)));
+
+            throw new Twig_Error_Runtime(sprintf('Invalid escaping strategy "%s" (valid ones: %s).', $strategy, $validStrategies));
+    }
+}
+
+/**
+ * @internal
+ */
+function twig_escape_filter_is_safe(Twig_Node $filterArgs)
+{
+    foreach ($filterArgs as $arg) {
+        if ($arg instanceof Twig_Node_Expression_Constant) {
+            return array($arg->getAttribute('value'));
+        }
+
+        return array();
+    }
+
+    return array('html');
+}
+
+if (function_exists('mb_convert_encoding')) {
+    function twig_convert_encoding($string, $to, $from)
+    {
+        return mb_convert_encoding($string, $to, $from);
+    }
+} elseif (function_exists('iconv')) {
+    function twig_convert_encoding($string, $to, $from)
+    {
+        return iconv($from, $to, $string);
+    }
+} else {
+    function twig_convert_encoding($string, $to, $from)
+    {
+        throw new Twig_Error_Runtime('No suitable convert encoding function (use UTF-8 as your encoding or install the iconv or mbstring extension).');
+    }
+}
+
+function _twig_escape_js_callback($matches)
+{
+    $char = $matches[0];
+
+    // \xHH
+    if (!isset($char[1])) {
+        return '\\x'.strtoupper(substr('00'.bin2hex($char), -2));
+    }
+
+    // \uHHHH
+    $char = twig_convert_encoding($char, 'UTF-16BE', 'UTF-8');
+
+    return '\\u'.strtoupper(substr('0000'.bin2hex($char), -4));
+}
+
+function _twig_escape_css_callback($matches)
+{
+    $char = $matches[0];
+
+    // \xHH
+    if (!isset($char[1])) {
+        $hex = ltrim(strtoupper(bin2hex($char)), '0');
+        if (0 === strlen($hex)) {
+            $hex = '0';
+        }
+
+        return '\\'.$hex.' ';
+    }
+
+    // \uHHHH
+    $char = twig_convert_encoding($char, 'UTF-16BE', 'UTF-8');
+
+    return '\\'.ltrim(strtoupper(bin2hex($char)), '0').' ';
+}
+
+/**
+ * This function is adapted from code coming from Zend Framework.
+ *
+ * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license   http://framework.zend.com/license/new-bsd New BSD License
+ */
+function _twig_escape_html_attr_callback($matches)
+{
+    /*
+     * While HTML supports far more named entities, the lowest common denominator
+     * has become HTML5's XML Serialisation which is restricted to the those named
+     * entities that XML supports. Using HTML entities would result in this error:
+     *     XML Parsing Error: undefined entity
+     */
+    static $entityMap = array(
+        34 => 'quot', /* quotation mark */
+        38 => 'amp',  /* ampersand */
+        60 => 'lt',   /* less-than sign */
+        62 => 'gt',   /* greater-than sign */
+    );
+
+    $chr = $matches[0];
+    $ord = ord($chr);
+
+    /*
+     * The following replaces characters undefined in HTML with the
+     * hex entity for the Unicode replacement character.
+     */
+    if (($ord <= 0x1f && $chr != "\t" && $chr != "\n" && $chr != "\r") || ($ord >= 0x7f && $ord <= 0x9f)) {
+        return '&#xFFFD;';
+    }
+
+    /*
+     * Check if the current character to escape has a name entity we should
+     * replace it with while grabbing the hex value of the character.
+     */
+    if (strlen($chr) == 1) {
+        $hex = strtoupper(substr('00'.bin2hex($chr), -2));
+    } else {
+        $chr = twig_convert_encoding($chr, 'UTF-16BE', 'UTF-8');
+        $hex = strtoupper(substr('0000'.bin2hex($chr), -4));
+    }
+
+    $int = hexdec($hex);
+    if (array_key_exists($int, $entityMap)) {
+        return sprintf('&%s;', $entityMap[$int]);
+    }
+
+    /*
+     * Per OWASP recommendations, we'll use hex entities for any other
+     * characters where a named entity does not exist.
+     */
+    return sprintf('&#x%s;', $hex);
+}
+
+// add multibyte extensions if possible
+if (function_exists('mb_get_info')) {
+    /**
+     * Returns the length of a variable.
+     *
+     * @param Twig_Environment $env   A Twig_Environment instance
+     * @param mixed            $thing A variable
+     *
+     * @return int The length of the value
+     */
+    function twig_length_filter(Twig_Environment $env, $thing)
+    {
+        return is_scalar($thing) ? mb_strlen($thing, $env->getCharset()) : count($thing);
+    }
+
+    /**
+     * Converts a string to uppercase.
+     *
+     * @param Twig_Environment $env    A Twig_Environment instance
+     * @param string           $string A string
+     *
+     * @return string The uppercased string
+     */
+    function twig_upper_filter(Twig_Environment $env, $string)
+    {
+        if (null !== $charset = $env->getCharset()) {
+            return mb_strtoupper($string, $charset);
+        }
+
+        return strtoupper($string);
+    }
+
+    /**
+     * Converts a string to lowercase.
+     *
+     * @param Twig_Environment $env    A Twig_Environment instance
+     * @param string           $string A string
+     *
+     * @return string The lowercased string
+     */
+    function twig_lower_filter(Twig_Environment $env, $string)
+    {
+        if (null !== $charset = $env->getCharset()) {
+            return mb_strtolower($string, $charset);
+        }
+
+        return strtolower($string);
+    }
+
+    /**
+     * Returns a titlecased string.
+     *
+     * @param Twig_Environment $env    A Twig_Environment instance
+     * @param string           $string A string
+     *
+     * @return string The titlecased string
+     */
+    function twig_title_string_filter(Twig_Environment $env, $string)
+    {
+        if (null !== $charset = $env->getCharset()) {
+            return mb_convert_case($string, MB_CASE_TITLE, $charset);
+        }
+
+        return ucwords(strtolower($string));
+    }
+
+    /**
+     * Returns a capitalized string.
+     *
+     * @param Twig_Environment $env    A Twig_Environment instance
+     * @param string           $string A string
+     *
+     * @return string The capitalized string
+     */
+    function twig_capitalize_string_filter(Twig_Environment $env, $string)
+    {
+        if (null !== $charset = $env->getCharset()) {
+            return mb_strtoupper(mb_substr($string, 0, 1, $charset), $charset).mb_strtolower(mb_substr($string, 1, mb_strlen($string, $charset), $charset), $charset);
+        }
+
+        return ucfirst(strtolower($string));
+    }
+}
+// and byte fallback
+else {
+    /**
+     * Returns the length of a variable.
+     *
+     * @param Twig_Environment $env   A Twig_Environment instance
+     * @param mixed            $thing A variable
+     *
+     * @return int The length of the value
+     */
+    function twig_length_filter(Twig_Environment $env, $thing)
+    {
+        return is_scalar($thing) ? strlen($thing) : count($thing);
+    }
+
+    /**
+     * Returns a titlecased string.
+     *
+     * @param Twig_Environment $env    A Twig_Environment instance
+     * @param string           $string A string
+     *
+     * @return string The titlecased string
+     */
+    function twig_title_string_filter(Twig_Environment $env, $string)
+    {
+        return ucwords(strtolower($string));
+    }
+
+    /**
+     * Returns a capitalized string.
+     *
+     * @param Twig_Environment $env    A Twig_Environment instance
+     * @param string           $string A string
+     *
+     * @return string The capitalized string
+     */
+    function twig_capitalize_string_filter(Twig_Environment $env, $string)
+    {
+        return ucfirst(strtolower($string));
+    }
+}
+
+/**
+ * @internal
+ */
+function twig_ensure_traversable($seq)
+{
+    if ($seq instanceof Traversable || is_array($seq)) {
+        return $seq;
+    }
+
+    return array();
+}
+
+/**
+ * Checks if a variable is empty.
+ *
+ * <pre>
+ * {# evaluates to true if the foo variable is null, false, or the empty string #}
+ * {% if foo is empty %}
+ *     {# ... #}
+ * {% endif %}
+ * </pre>
+ *
+ * @param mixed $value A variable
+ *
+ * @return bool true if the value is empty, false otherwise
+ */
+function twig_test_empty($value)
+{
+    if ($value instanceof Countable) {
+        return 0 == count($value);
+    }
+
+    return '' === $value || false === $value || null === $value || array() === $value;
+}
+
+/**
+ * Checks if a variable is traversable.
+ *
+ * <pre>
+ * {# evaluates to true if the foo variable is an array or a traversable object #}
+ * {% if foo is traversable %}
+ *     {# ... #}
+ * {% endif %}
+ * </pre>
+ *
+ * @param mixed $value A variable
+ *
+ * @return bool true if the value is traversable
+ */
+function twig_test_iterable($value)
+{
+    return $value instanceof Traversable || is_array($value);
+}
+
+/**
+ * Renders a template.
+ *
+ * @param Twig_Environment $env
+ * @param array            $context
+ * @param string|array     $template      The template to render or an array of templates to try consecutively
+ * @param array            $variables     The variables to pass to the template
+ * @param bool             $withContext
+ * @param bool             $ignoreMissing Whether to ignore missing templates or not
+ * @param bool             $sandboxed     Whether to sandbox the template or not
+ *
+ * @return string The rendered template
+ */
+function twig_include(Twig_Environment $env, $context, $template, $variables = array(), $withContext = true, $ignoreMissing = false, $sandboxed = false)
+{
+    $alreadySandboxed = false;
+    $sandbox = null;
+    if ($withContext) {
+        $variables = array_merge($context, $variables);
+    }
+
+    if ($isSandboxed = $sandboxed && $env->hasExtension('sandbox')) {
+        $sandbox = $env->getExtension('sandbox');
+        if (!$alreadySandboxed = $sandbox->isSandboxed()) {
+            $sandbox->enableSandbox();
+        }
+    }
+
+    $result = null;
+    try {
+        $result = $env->resolveTemplate($template)->render($variables);
+    } catch (Twig_Error_Loader $e) {
+        if (!$ignoreMissing) {
+            if ($isSandboxed && !$alreadySandboxed) {
+                $sandbox->disableSandbox();
+            }
+
+            throw $e;
+        }
+    }
+
+    if ($isSandboxed && !$alreadySandboxed) {
+        $sandbox->disableSandbox();
+    }
+
+    return $result;
+}
+
+/**
+ * Returns a template content without rendering it.
+ *
+ * @param Twig_Environment $env
+ * @param string           $name          The template name
+ * @param bool             $ignoreMissing Whether to ignore missing templates or not
+ *
+ * @return string The template source
+ */
+function twig_source(Twig_Environment $env, $name, $ignoreMissing = false)
+{
+    try {
+        return $env->getLoader()->getSource($name);
+    } catch (Twig_Error_Loader $e) {
+        if (!$ignoreMissing) {
+            throw $e;
+        }
+    }
+}
+
+/**
+ * Provides the ability to get constants from instances as well as class/global constants.
+ *
+ * @param string      $constant The name of the constant
+ * @param null|object $object   The object to get the constant from
+ *
+ * @return string
+ */
+function twig_constant($constant, $object = null)
+{
+    if (null !== $object) {
+        $constant = get_class($object).'::'.$constant;
+    }
+
+    return constant($constant);
+}
+
+/**
+ * Batches item.
+ *
+ * @param array $items An array of items
+ * @param int   $size  The size of the batch
+ * @param mixed $fill  A value used to fill missing items
+ *
+ * @return array
+ */
+function twig_array_batch($items, $size, $fill = null)
+{
+    if ($items instanceof Traversable) {
+        $items = iterator_to_array($items, false);
+    }
+
+    $size = ceil($size);
+
+    $result = array_chunk($items, $size, true);
+
+    if (null !== $fill && !empty($result)) {
+        $last = count($result) - 1;
+        if ($fillCount = $size - count($result[$last])) {
+            $result[$last] = array_merge(
+                $result[$last],
+                array_fill(0, $fillCount, $fill)
+            );
+        }
+    }
+
+    return $result;
+}
diff --git a/vendor/twig/twig/lib/Twig/Extension/Debug.php b/vendor/twig/twig/lib/Twig/Extension/Debug.php
new file mode 100644
index 000000000..42fdb1e30
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Extension/Debug.php
@@ -0,0 +1,61 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2011 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Extension_Debug extends Twig_Extension
+{
+    public function getFunctions()
+    {
+        // dump is safe if var_dump is overridden by xdebug
+        $isDumpOutputHtmlSafe = extension_loaded('xdebug')
+            // false means that it was not set (and the default is on) or it explicitly enabled
+            && (false === ini_get('xdebug.overload_var_dump') || ini_get('xdebug.overload_var_dump'))
+            // false means that it was not set (and the default is on) or it explicitly enabled
+            // xdebug.overload_var_dump produces HTML only when html_errors is also enabled
+            && (false === ini_get('html_errors') || ini_get('html_errors'))
+            || 'cli' === php_sapi_name()
+        ;
+
+        return array(
+            new Twig_SimpleFunction('dump', 'twig_var_dump', array('is_safe' => $isDumpOutputHtmlSafe ? array('html') : array(), 'needs_context' => true, 'needs_environment' => true)),
+        );
+    }
+
+    public function getName()
+    {
+        return 'debug';
+    }
+}
+
+function twig_var_dump(Twig_Environment $env, $context)
+{
+    if (!$env->isDebug()) {
+        return;
+    }
+
+    ob_start();
+
+    $count = func_num_args();
+    if (2 === $count) {
+        $vars = array();
+        foreach ($context as $key => $value) {
+            if (!$value instanceof Twig_Template) {
+                $vars[$key] = $value;
+            }
+        }
+
+        var_dump($vars);
+    } else {
+        for ($i = 2; $i < $count; ++$i) {
+            var_dump(func_get_arg($i));
+        }
+    }
+
+    return ob_get_clean();
+}
diff --git a/vendor/twig/twig/lib/Twig/Extension/Escaper.php b/vendor/twig/twig/lib/Twig/Extension/Escaper.php
new file mode 100644
index 000000000..0be721d5b
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Extension/Escaper.php
@@ -0,0 +1,102 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Extension_Escaper extends Twig_Extension
+{
+    protected $defaultStrategy;
+
+    /**
+     * Constructor.
+     *
+     * @param string|false|callable $defaultStrategy An escaping strategy
+     *
+     * @see setDefaultStrategy()
+     */
+    public function __construct($defaultStrategy = 'html')
+    {
+        $this->setDefaultStrategy($defaultStrategy);
+    }
+
+    public function getTokenParsers()
+    {
+        return array(new Twig_TokenParser_AutoEscape());
+    }
+
+    public function getNodeVisitors()
+    {
+        return array(new Twig_NodeVisitor_Escaper());
+    }
+
+    public function getFilters()
+    {
+        return array(
+            new Twig_SimpleFilter('raw', 'twig_raw_filter', array('is_safe' => array('all'))),
+        );
+    }
+
+    /**
+     * Sets the default strategy to use when not defined by the user.
+     *
+     * The strategy can be a valid PHP callback that takes the template
+     * "filename" as an argument and returns the strategy to use.
+     *
+     * @param string|false|callable $defaultStrategy An escaping strategy
+     */
+    public function setDefaultStrategy($defaultStrategy)
+    {
+        // for BC
+        if (true === $defaultStrategy) {
+            @trigger_error('Using "true" as the default strategy is deprecated since version 1.21. Use "html" instead.', E_USER_DEPRECATED);
+
+            $defaultStrategy = 'html';
+        }
+
+        if ('filename' === $defaultStrategy) {
+            $defaultStrategy = array('Twig_FileExtensionEscapingStrategy', 'guess');
+        }
+
+        $this->defaultStrategy = $defaultStrategy;
+    }
+
+    /**
+     * Gets the default strategy to use when not defined by the user.
+     *
+     * @param string $filename The template "filename"
+     *
+     * @return string|false The default strategy to use for the template
+     */
+    public function getDefaultStrategy($filename)
+    {
+        // disable string callables to avoid calling a function named html or js,
+        // or any other upcoming escaping strategy
+        if (!is_string($this->defaultStrategy) && false !== $this->defaultStrategy) {
+            return call_user_func($this->defaultStrategy, $filename);
+        }
+
+        return $this->defaultStrategy;
+    }
+
+    public function getName()
+    {
+        return 'escaper';
+    }
+}
+
+/**
+ * Marks a variable as being safe.
+ *
+ * @param string $string A PHP variable
+ *
+ * @return string
+ */
+function twig_raw_filter($string)
+{
+    return $string;
+}
diff --git a/vendor/twig/twig/lib/Twig/Extension/GlobalsInterface.php b/vendor/twig/twig/lib/Twig/Extension/GlobalsInterface.php
new file mode 100644
index 000000000..5370b8e2a
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Extension/GlobalsInterface.php
@@ -0,0 +1,22 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Enables usage of the deprecated Twig_Extension::getGlobals() method.
+ *
+ * Explicitly implement this interface if you really need to implement the
+ * deprecated getGlobals() method in your extensions.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface Twig_Extension_GlobalsInterface
+{
+}
diff --git a/vendor/twig/twig/lib/Twig/Extension/InitRuntimeInterface.php b/vendor/twig/twig/lib/Twig/Extension/InitRuntimeInterface.php
new file mode 100644
index 000000000..7a075822f
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Extension/InitRuntimeInterface.php
@@ -0,0 +1,22 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Enables usage of the deprecated Twig_Extension::initRuntime() method.
+ *
+ * Explicitly implement this interface if you really need to implement the
+ * deprecated initRuntime() method in your extensions.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface Twig_Extension_InitRuntimeInterface
+{
+}
diff --git a/vendor/twig/twig/lib/Twig/Extension/Optimizer.php b/vendor/twig/twig/lib/Twig/Extension/Optimizer.php
new file mode 100644
index 000000000..5a64a1a4e
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Extension/Optimizer.php
@@ -0,0 +1,29 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Extension_Optimizer extends Twig_Extension
+{
+    protected $optimizers;
+
+    public function __construct($optimizers = -1)
+    {
+        $this->optimizers = $optimizers;
+    }
+
+    public function getNodeVisitors()
+    {
+        return array(new Twig_NodeVisitor_Optimizer($this->optimizers));
+    }
+
+    public function getName()
+    {
+        return 'optimizer';
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Extension/Profiler.php b/vendor/twig/twig/lib/Twig/Extension/Profiler.php
new file mode 100644
index 000000000..4d9f97f89
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Extension/Profiler.php
@@ -0,0 +1,46 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2015 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Extension_Profiler extends Twig_Extension
+{
+    private $actives = array();
+
+    public function __construct(Twig_Profiler_Profile $profile)
+    {
+        $this->actives[] = $profile;
+    }
+
+    public function enter(Twig_Profiler_Profile $profile)
+    {
+        $this->actives[0]->addProfile($profile);
+        array_unshift($this->actives, $profile);
+    }
+
+    public function leave(Twig_Profiler_Profile $profile)
+    {
+        $profile->leave();
+        array_shift($this->actives);
+
+        if (1 === count($this->actives)) {
+            $this->actives[0]->leave();
+        }
+    }
+
+    public function getNodeVisitors()
+    {
+        return array(new Twig_Profiler_NodeVisitor_Profiler($this->getName()));
+    }
+
+    public function getName()
+    {
+        return 'profiler';
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Extension/Sandbox.php b/vendor/twig/twig/lib/Twig/Extension/Sandbox.php
new file mode 100644
index 000000000..760d12382
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Extension/Sandbox.php
@@ -0,0 +1,97 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Extension_Sandbox extends Twig_Extension
+{
+    protected $sandboxedGlobally;
+    protected $sandboxed;
+    protected $policy;
+
+    public function __construct(Twig_Sandbox_SecurityPolicyInterface $policy, $sandboxed = false)
+    {
+        $this->policy = $policy;
+        $this->sandboxedGlobally = $sandboxed;
+    }
+
+    public function getTokenParsers()
+    {
+        return array(new Twig_TokenParser_Sandbox());
+    }
+
+    public function getNodeVisitors()
+    {
+        return array(new Twig_NodeVisitor_Sandbox());
+    }
+
+    public function enableSandbox()
+    {
+        $this->sandboxed = true;
+    }
+
+    public function disableSandbox()
+    {
+        $this->sandboxed = false;
+    }
+
+    public function isSandboxed()
+    {
+        return $this->sandboxedGlobally || $this->sandboxed;
+    }
+
+    public function isSandboxedGlobally()
+    {
+        return $this->sandboxedGlobally;
+    }
+
+    public function setSecurityPolicy(Twig_Sandbox_SecurityPolicyInterface $policy)
+    {
+        $this->policy = $policy;
+    }
+
+    public function getSecurityPolicy()
+    {
+        return $this->policy;
+    }
+
+    public function checkSecurity($tags, $filters, $functions)
+    {
+        if ($this->isSandboxed()) {
+            $this->policy->checkSecurity($tags, $filters, $functions);
+        }
+    }
+
+    public function checkMethodAllowed($obj, $method)
+    {
+        if ($this->isSandboxed()) {
+            $this->policy->checkMethodAllowed($obj, $method);
+        }
+    }
+
+    public function checkPropertyAllowed($obj, $method)
+    {
+        if ($this->isSandboxed()) {
+            $this->policy->checkPropertyAllowed($obj, $method);
+        }
+    }
+
+    public function ensureToStringAllowed($obj)
+    {
+        if ($this->isSandboxed() && is_object($obj)) {
+            $this->policy->checkMethodAllowed($obj, '__toString');
+        }
+
+        return $obj;
+    }
+
+    public function getName()
+    {
+        return 'sandbox';
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Extension/Staging.php b/vendor/twig/twig/lib/Twig/Extension/Staging.php
new file mode 100644
index 000000000..d21004d09
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Extension/Staging.php
@@ -0,0 +1,94 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2012 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Internal class.
+ *
+ * This class is used by Twig_Environment as a staging area and must not be used directly.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @internal
+ */
+class Twig_Extension_Staging extends Twig_Extension
+{
+    protected $functions = array();
+    protected $filters = array();
+    protected $visitors = array();
+    protected $tokenParsers = array();
+    protected $globals = array();
+    protected $tests = array();
+
+    public function addFunction($name, $function)
+    {
+        $this->functions[$name] = $function;
+    }
+
+    public function getFunctions()
+    {
+        return $this->functions;
+    }
+
+    public function addFilter($name, $filter)
+    {
+        $this->filters[$name] = $filter;
+    }
+
+    public function getFilters()
+    {
+        return $this->filters;
+    }
+
+    public function addNodeVisitor(Twig_NodeVisitorInterface $visitor)
+    {
+        $this->visitors[] = $visitor;
+    }
+
+    public function getNodeVisitors()
+    {
+        return $this->visitors;
+    }
+
+    public function addTokenParser(Twig_TokenParserInterface $parser)
+    {
+        $this->tokenParsers[] = $parser;
+    }
+
+    public function getTokenParsers()
+    {
+        return $this->tokenParsers;
+    }
+
+    public function addGlobal($name, $value)
+    {
+        $this->globals[$name] = $value;
+    }
+
+    public function getGlobals()
+    {
+        return $this->globals;
+    }
+
+    public function addTest($name, $test)
+    {
+        $this->tests[$name] = $test;
+    }
+
+    public function getTests()
+    {
+        return $this->tests;
+    }
+
+    public function getName()
+    {
+        return 'staging';
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Extension/StringLoader.php b/vendor/twig/twig/lib/Twig/Extension/StringLoader.php
new file mode 100644
index 000000000..2a3ddb6a7
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Extension/StringLoader.php
@@ -0,0 +1,41 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2012 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Extension_StringLoader extends Twig_Extension
+{
+    public function getFunctions()
+    {
+        return array(
+            new Twig_SimpleFunction('template_from_string', 'twig_template_from_string', array('needs_environment' => true)),
+        );
+    }
+
+    public function getName()
+    {
+        return 'string_loader';
+    }
+}
+
+/**
+ * Loads a template from a string.
+ *
+ * <pre>
+ * {{ include(template_from_string("Hello {{ name }}")) }}
+ * </pre>
+ *
+ * @param Twig_Environment $env      A Twig_Environment instance
+ * @param string           $template A template as a string or object implementing __toString()
+ *
+ * @return Twig_Template A Twig_Template instance
+ */
+function twig_template_from_string(Twig_Environment $env, $template)
+{
+    return $env->createTemplate((string) $template);
+}
diff --git a/vendor/twig/twig/lib/Twig/ExtensionInterface.php b/vendor/twig/twig/lib/Twig/ExtensionInterface.php
new file mode 100644
index 000000000..776ffeba8
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/ExtensionInterface.php
@@ -0,0 +1,87 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Interface implemented by extension classes.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface Twig_ExtensionInterface
+{
+    /**
+     * Initializes the runtime environment.
+     *
+     * This is where you can load some file that contains filter functions for instance.
+     *
+     * @param Twig_Environment $environment The current Twig_Environment instance
+     *
+     * @deprecated since 1.23 (to be removed in 2.0), implement Twig_Extension_InitRuntimeInterface instead
+     */
+    public function initRuntime(Twig_Environment $environment);
+
+    /**
+     * Returns the token parser instances to add to the existing list.
+     *
+     * @return Twig_TokenParserInterface[]
+     */
+    public function getTokenParsers();
+
+    /**
+     * Returns the node visitor instances to add to the existing list.
+     *
+     * @return Twig_NodeVisitorInterface[] An array of Twig_NodeVisitorInterface instances
+     */
+    public function getNodeVisitors();
+
+    /**
+     * Returns a list of filters to add to the existing list.
+     *
+     * @return Twig_SimpleFilter[]
+     */
+    public function getFilters();
+
+    /**
+     * Returns a list of tests to add to the existing list.
+     *
+     * @return Twig_SimpleTest[]
+     */
+    public function getTests();
+
+    /**
+     * Returns a list of functions to add to the existing list.
+     *
+     * @return Twig_SimpleFunction[]
+     */
+    public function getFunctions();
+
+    /**
+     * Returns a list of operators to add to the existing list.
+     *
+     * @return array An array of operators
+     */
+    public function getOperators();
+
+    /**
+     * Returns a list of global variables to add to the existing list.
+     *
+     * @return array An array of global variables
+     *
+     * @deprecated since 1.23 (to be removed in 2.0), implement Twig_Extension_GlobalsInterface instead
+     */
+    public function getGlobals();
+
+    /**
+     * Returns the name of the extension.
+     *
+     * @return string The extension name
+     */
+    public function getName();
+}
diff --git a/vendor/twig/twig/lib/Twig/FileExtensionEscapingStrategy.php b/vendor/twig/twig/lib/Twig/FileExtensionEscapingStrategy.php
new file mode 100644
index 000000000..9bda0b4f6
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/FileExtensionEscapingStrategy.php
@@ -0,0 +1,58 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2015 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Default autoescaping strategy based on file names.
+ *
+ * This strategy sets the HTML as the default autoescaping strategy,
+ * but changes it based on the filename.
+ *
+ * Note that there is no runtime performance impact as the
+ * default autoescaping strategy is set at compilation time.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_FileExtensionEscapingStrategy
+{
+    /**
+     * Guesses the best autoescaping strategy based on the file name.
+     *
+     * @param string $filename The template file name
+     *
+     * @return string|false The escaping strategy name to use or false to disable
+     */
+    public static function guess($filename)
+    {
+        if (in_array(substr($filename, -1), array('/', '\\'))) {
+            return 'html'; // return html for directories
+        }
+
+        if ('.twig' === substr($filename, -5)) {
+            $filename = substr($filename, 0, -5);
+        }
+
+        $extension = pathinfo($filename, PATHINFO_EXTENSION);
+
+        switch ($extension) {
+            case 'js':
+                return 'js';
+
+            case 'css':
+                return 'css';
+
+            case 'txt':
+                return false;
+
+            default:
+                return 'html';
+        }
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Filter.php b/vendor/twig/twig/lib/Twig/Filter.php
new file mode 100644
index 000000000..101d2e793
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Filter.php
@@ -0,0 +1,84 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+@trigger_error('The Twig_Filter class is deprecated since version 1.12 and will be removed in 2.0. Use Twig_SimpleFilter instead.', E_USER_DEPRECATED);
+
+/**
+ * Represents a template filter.
+ *
+ * Use Twig_SimpleFilter instead.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since 1.12 (to be removed in 2.0)
+ */
+abstract class Twig_Filter implements Twig_FilterInterface, Twig_FilterCallableInterface
+{
+    protected $options;
+    protected $arguments = array();
+
+    public function __construct(array $options = array())
+    {
+        $this->options = array_merge(array(
+            'needs_environment' => false,
+            'needs_context' => false,
+            'pre_escape' => null,
+            'preserves_safety' => null,
+            'callable' => null,
+        ), $options);
+    }
+
+    public function setArguments($arguments)
+    {
+        $this->arguments = $arguments;
+    }
+
+    public function getArguments()
+    {
+        return $this->arguments;
+    }
+
+    public function needsEnvironment()
+    {
+        return $this->options['needs_environment'];
+    }
+
+    public function needsContext()
+    {
+        return $this->options['needs_context'];
+    }
+
+    public function getSafe(Twig_Node $filterArgs)
+    {
+        if (isset($this->options['is_safe'])) {
+            return $this->options['is_safe'];
+        }
+
+        if (isset($this->options['is_safe_callback'])) {
+            return call_user_func($this->options['is_safe_callback'], $filterArgs);
+        }
+    }
+
+    public function getPreservesSafety()
+    {
+        return $this->options['preserves_safety'];
+    }
+
+    public function getPreEscape()
+    {
+        return $this->options['pre_escape'];
+    }
+
+    public function getCallable()
+    {
+        return $this->options['callable'];
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Filter/Function.php b/vendor/twig/twig/lib/Twig/Filter/Function.php
new file mode 100644
index 000000000..d679cab2f
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Filter/Function.php
@@ -0,0 +1,40 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+@trigger_error('The Twig_Filter_Function class is deprecated since version 1.12 and will be removed in 2.0. Use Twig_SimpleFilter instead.', E_USER_DEPRECATED);
+
+/**
+ * Represents a function template filter.
+ *
+ * Use Twig_SimpleFilter instead.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since 1.12 (to be removed in 2.0)
+ */
+class Twig_Filter_Function extends Twig_Filter
+{
+    protected $function;
+
+    public function __construct($function, array $options = array())
+    {
+        $options['callable'] = $function;
+
+        parent::__construct($options);
+
+        $this->function = $function;
+    }
+
+    public function compile()
+    {
+        return $this->function;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Filter/Method.php b/vendor/twig/twig/lib/Twig/Filter/Method.php
new file mode 100644
index 000000000..655aab405
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Filter/Method.php
@@ -0,0 +1,42 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+@trigger_error('The Twig_Filter_Method class is deprecated since version 1.12 and will be removed in 2.0. Use Twig_SimpleFilter instead.', E_USER_DEPRECATED);
+
+/**
+ * Represents a method template filter.
+ *
+ * Use Twig_SimpleFilter instead.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since 1.12 (to be removed in 2.0)
+ */
+class Twig_Filter_Method extends Twig_Filter
+{
+    protected $extension;
+    protected $method;
+
+    public function __construct(Twig_ExtensionInterface $extension, $method, array $options = array())
+    {
+        $options['callable'] = array($extension, $method);
+
+        parent::__construct($options);
+
+        $this->extension = $extension;
+        $this->method = $method;
+    }
+
+    public function compile()
+    {
+        return sprintf('$this->env->getExtension(\'%s\')->%s', $this->extension->getName(), $this->method);
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Filter/Node.php b/vendor/twig/twig/lib/Twig/Filter/Node.php
new file mode 100644
index 000000000..a922f5037
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Filter/Node.php
@@ -0,0 +1,42 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2011 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+@trigger_error('The Twig_Filter_Node class is deprecated since version 1.12 and will be removed in 2.0. Use Twig_SimpleFilter instead.', E_USER_DEPRECATED);
+
+/**
+ * Represents a template filter as a node.
+ *
+ * Use Twig_SimpleFilter instead.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since 1.12 (to be removed in 2.0)
+ */
+class Twig_Filter_Node extends Twig_Filter
+{
+    protected $class;
+
+    public function __construct($class, array $options = array())
+    {
+        parent::__construct($options);
+
+        $this->class = $class;
+    }
+
+    public function getClass()
+    {
+        return $this->class;
+    }
+
+    public function compile()
+    {
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/FilterCallableInterface.php b/vendor/twig/twig/lib/Twig/FilterCallableInterface.php
new file mode 100644
index 000000000..567986131
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/FilterCallableInterface.php
@@ -0,0 +1,24 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2012 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a callable template filter.
+ *
+ * Use Twig_SimpleFilter instead.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since 1.12 (to be removed in 2.0)
+ */
+interface Twig_FilterCallableInterface
+{
+    public function getCallable();
+}
diff --git a/vendor/twig/twig/lib/Twig/FilterInterface.php b/vendor/twig/twig/lib/Twig/FilterInterface.php
new file mode 100644
index 000000000..6b0be0e30
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/FilterInterface.php
@@ -0,0 +1,43 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a template filter.
+ *
+ * Use Twig_SimpleFilter instead.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since 1.12 (to be removed in 2.0)
+ */
+interface Twig_FilterInterface
+{
+    /**
+     * Compiles a filter.
+     *
+     * @return string The PHP code for the filter
+     */
+    public function compile();
+
+    public function needsEnvironment();
+
+    public function needsContext();
+
+    public function getSafe(Twig_Node $filterArgs);
+
+    public function getPreservesSafety();
+
+    public function getPreEscape();
+
+    public function setArguments($arguments);
+
+    public function getArguments();
+}
diff --git a/vendor/twig/twig/lib/Twig/Function.php b/vendor/twig/twig/lib/Twig/Function.php
new file mode 100644
index 000000000..9fc76a8b7
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Function.php
@@ -0,0 +1,74 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+@trigger_error('The Twig_Function class is deprecated since version 1.12 and will be removed in 2.0. Use Twig_SimpleFunction instead.', E_USER_DEPRECATED);
+
+/**
+ * Represents a template function.
+ *
+ * Use Twig_SimpleFunction instead.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since 1.12 (to be removed in 2.0)
+ */
+abstract class Twig_Function implements Twig_FunctionInterface, Twig_FunctionCallableInterface
+{
+    protected $options;
+    protected $arguments = array();
+
+    public function __construct(array $options = array())
+    {
+        $this->options = array_merge(array(
+            'needs_environment' => false,
+            'needs_context' => false,
+            'callable' => null,
+        ), $options);
+    }
+
+    public function setArguments($arguments)
+    {
+        $this->arguments = $arguments;
+    }
+
+    public function getArguments()
+    {
+        return $this->arguments;
+    }
+
+    public function needsEnvironment()
+    {
+        return $this->options['needs_environment'];
+    }
+
+    public function needsContext()
+    {
+        return $this->options['needs_context'];
+    }
+
+    public function getSafe(Twig_Node $functionArgs)
+    {
+        if (isset($this->options['is_safe'])) {
+            return $this->options['is_safe'];
+        }
+
+        if (isset($this->options['is_safe_callback'])) {
+            return call_user_func($this->options['is_safe_callback'], $functionArgs);
+        }
+
+        return array();
+    }
+
+    public function getCallable()
+    {
+        return $this->options['callable'];
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Function/Function.php b/vendor/twig/twig/lib/Twig/Function/Function.php
new file mode 100644
index 000000000..ae83e153c
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Function/Function.php
@@ -0,0 +1,41 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2010 Arnaud Le Blanc
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+@trigger_error('The Twig_Function_Function class is deprecated since version 1.12 and will be removed in 2.0. Use Twig_SimpleFunction instead.', E_USER_DEPRECATED);
+
+/**
+ * Represents a function template function.
+ *
+ * Use Twig_SimpleFunction instead.
+ *
+ * @author Arnaud Le Blanc <arnaud.lb@gmail.com>
+ *
+ * @deprecated since 1.12 (to be removed in 2.0)
+ */
+class Twig_Function_Function extends Twig_Function
+{
+    protected $function;
+
+    public function __construct($function, array $options = array())
+    {
+        $options['callable'] = $function;
+
+        parent::__construct($options);
+
+        $this->function = $function;
+    }
+
+    public function compile()
+    {
+        return $this->function;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Function/Method.php b/vendor/twig/twig/lib/Twig/Function/Method.php
new file mode 100644
index 000000000..ba9945ed5
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Function/Method.php
@@ -0,0 +1,43 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2010 Arnaud Le Blanc
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+@trigger_error('The Twig_Function_Method class is deprecated since version 1.12 and will be removed in 2.0. Use Twig_SimpleFunction instead.', E_USER_DEPRECATED);
+
+/**
+ * Represents a method template function.
+ *
+ * Use Twig_SimpleFunction instead.
+ *
+ * @author Arnaud Le Blanc <arnaud.lb@gmail.com>
+ *
+ * @deprecated since 1.12 (to be removed in 2.0)
+ */
+class Twig_Function_Method extends Twig_Function
+{
+    protected $extension;
+    protected $method;
+
+    public function __construct(Twig_ExtensionInterface $extension, $method, array $options = array())
+    {
+        $options['callable'] = array($extension, $method);
+
+        parent::__construct($options);
+
+        $this->extension = $extension;
+        $this->method = $method;
+    }
+
+    public function compile()
+    {
+        return sprintf('$this->env->getExtension(\'%s\')->%s', $this->extension->getName(), $this->method);
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Function/Node.php b/vendor/twig/twig/lib/Twig/Function/Node.php
new file mode 100644
index 000000000..118b0bab7
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Function/Node.php
@@ -0,0 +1,42 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2011 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+@trigger_error('The Twig_Function_Node class is deprecated since version 1.12 and will be removed in 2.0. Use Twig_SimpleFunction instead.', E_USER_DEPRECATED);
+
+/**
+ * Represents a template function as a node.
+ *
+ * Use Twig_SimpleFunction instead.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since 1.12 (to be removed in 2.0)
+ */
+class Twig_Function_Node extends Twig_Function
+{
+    protected $class;
+
+    public function __construct($class, array $options = array())
+    {
+        parent::__construct($options);
+
+        $this->class = $class;
+    }
+
+    public function getClass()
+    {
+        return $this->class;
+    }
+
+    public function compile()
+    {
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/FunctionCallableInterface.php b/vendor/twig/twig/lib/Twig/FunctionCallableInterface.php
new file mode 100644
index 000000000..87d795eb8
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/FunctionCallableInterface.php
@@ -0,0 +1,24 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2012 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a callable template function.
+ *
+ * Use Twig_SimpleFunction instead.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since 1.12 (to be removed in 2.0)
+ */
+interface Twig_FunctionCallableInterface
+{
+    public function getCallable();
+}
diff --git a/vendor/twig/twig/lib/Twig/FunctionInterface.php b/vendor/twig/twig/lib/Twig/FunctionInterface.php
new file mode 100644
index 000000000..f44923441
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/FunctionInterface.php
@@ -0,0 +1,40 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ * (c) 2010 Arnaud Le Blanc
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a template function.
+ *
+ * Use Twig_SimpleFunction instead.
+ *
+ * @author Arnaud Le Blanc <arnaud.lb@gmail.com>
+ *
+ * @deprecated since 1.12 (to be removed in 2.0)
+ */
+interface Twig_FunctionInterface
+{
+    /**
+     * Compiles a function.
+     *
+     * @return string The PHP code for the function
+     */
+    public function compile();
+
+    public function needsEnvironment();
+
+    public function needsContext();
+
+    public function getSafe(Twig_Node $filterArgs);
+
+    public function setArguments($arguments);
+
+    public function getArguments();
+}
diff --git a/vendor/twig/twig/lib/Twig/Lexer.php b/vendor/twig/twig/lib/Twig/Lexer.php
new file mode 100644
index 000000000..dd7987385
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Lexer.php
@@ -0,0 +1,411 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Lexes a template string.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Lexer implements Twig_LexerInterface
+{
+    protected $tokens;
+    protected $code;
+    protected $cursor;
+    protected $lineno;
+    protected $end;
+    protected $state;
+    protected $states;
+    protected $brackets;
+    protected $env;
+    protected $filename;
+    protected $options;
+    protected $regexes;
+    protected $position;
+    protected $positions;
+    protected $currentVarBlockLine;
+
+    const STATE_DATA = 0;
+    const STATE_BLOCK = 1;
+    const STATE_VAR = 2;
+    const STATE_STRING = 3;
+    const STATE_INTERPOLATION = 4;
+
+    const REGEX_NAME = '/[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*/A';
+    const REGEX_NUMBER = '/[0-9]+(?:\.[0-9]+)?/A';
+    const REGEX_STRING = '/"([^#"\\\\]*(?:\\\\.[^#"\\\\]*)*)"|\'([^\'\\\\]*(?:\\\\.[^\'\\\\]*)*)\'/As';
+    const REGEX_DQ_STRING_DELIM = '/"/A';
+    const REGEX_DQ_STRING_PART = '/[^#"\\\\]*(?:(?:\\\\.|#(?!\{))[^#"\\\\]*)*/As';
+    const PUNCTUATION = '()[]{}?:.,|';
+
+    public function __construct(Twig_Environment $env, array $options = array())
+    {
+        $this->env = $env;
+
+        $this->options = array_merge(array(
+            'tag_comment' => array('{#', '#}'),
+            'tag_block' => array('{%', '%}'),
+            'tag_variable' => array('{{', '}}'),
+            'whitespace_trim' => '-',
+            'interpolation' => array('#{', '}'),
+        ), $options);
+
+        $this->regexes = array(
+            'lex_var' => '/\s*'.preg_quote($this->options['whitespace_trim'].$this->options['tag_variable'][1], '/').'\s*|\s*'.preg_quote($this->options['tag_variable'][1], '/').'/A',
+            'lex_block' => '/\s*(?:'.preg_quote($this->options['whitespace_trim'].$this->options['tag_block'][1], '/').'\s*|\s*'.preg_quote($this->options['tag_block'][1], '/').')\n?/A',
+            'lex_raw_data' => '/('.preg_quote($this->options['tag_block'][0].$this->options['whitespace_trim'], '/').'|'.preg_quote($this->options['tag_block'][0], '/').')\s*(?:end%s)\s*(?:'.preg_quote($this->options['whitespace_trim'].$this->options['tag_block'][1], '/').'\s*|\s*'.preg_quote($this->options['tag_block'][1], '/').')/s',
+            'operator' => $this->getOperatorRegex(),
+            'lex_comment' => '/(?:'.preg_quote($this->options['whitespace_trim'], '/').preg_quote($this->options['tag_comment'][1], '/').'\s*|'.preg_quote($this->options['tag_comment'][1], '/').')\n?/s',
+            'lex_block_raw' => '/\s*(raw|verbatim)\s*(?:'.preg_quote($this->options['whitespace_trim'].$this->options['tag_block'][1], '/').'\s*|\s*'.preg_quote($this->options['tag_block'][1], '/').')/As',
+            'lex_block_line' => '/\s*line\s+(\d+)\s*'.preg_quote($this->options['tag_block'][1], '/').'/As',
+            'lex_tokens_start' => '/('.preg_quote($this->options['tag_variable'][0], '/').'|'.preg_quote($this->options['tag_block'][0], '/').'|'.preg_quote($this->options['tag_comment'][0], '/').')('.preg_quote($this->options['whitespace_trim'], '/').')?/s',
+            'interpolation_start' => '/'.preg_quote($this->options['interpolation'][0], '/').'\s*/A',
+            'interpolation_end' => '/\s*'.preg_quote($this->options['interpolation'][1], '/').'/A',
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function tokenize($code, $filename = null)
+    {
+        if (function_exists('mb_internal_encoding') && ((int) ini_get('mbstring.func_overload')) & 2) {
+            $mbEncoding = mb_internal_encoding();
+            mb_internal_encoding('ASCII');
+        } else {
+            $mbEncoding = null;
+        }
+
+        $this->code = str_replace(array("\r\n", "\r"), "\n", $code);
+        $this->filename = $filename;
+        $this->cursor = 0;
+        $this->lineno = 1;
+        $this->end = strlen($this->code);
+        $this->tokens = array();
+        $this->state = self::STATE_DATA;
+        $this->states = array();
+        $this->brackets = array();
+        $this->position = -1;
+
+        // find all token starts in one go
+        preg_match_all($this->regexes['lex_tokens_start'], $this->code, $matches, PREG_OFFSET_CAPTURE);
+        $this->positions = $matches;
+
+        while ($this->cursor < $this->end) {
+            // dispatch to the lexing functions depending
+            // on the current state
+            switch ($this->state) {
+                case self::STATE_DATA:
+                    $this->lexData();
+                    break;
+
+                case self::STATE_BLOCK:
+                    $this->lexBlock();
+                    break;
+
+                case self::STATE_VAR:
+                    $this->lexVar();
+                    break;
+
+                case self::STATE_STRING:
+                    $this->lexString();
+                    break;
+
+                case self::STATE_INTERPOLATION:
+                    $this->lexInterpolation();
+                    break;
+            }
+        }
+
+        $this->pushToken(Twig_Token::EOF_TYPE);
+
+        if (!empty($this->brackets)) {
+            list($expect, $lineno) = array_pop($this->brackets);
+            throw new Twig_Error_Syntax(sprintf('Unclosed "%s".', $expect), $lineno, $this->filename);
+        }
+
+        if ($mbEncoding) {
+            mb_internal_encoding($mbEncoding);
+        }
+
+        return new Twig_TokenStream($this->tokens, $this->filename);
+    }
+
+    protected function lexData()
+    {
+        // if no matches are left we return the rest of the template as simple text token
+        if ($this->position == count($this->positions[0]) - 1) {
+            $this->pushToken(Twig_Token::TEXT_TYPE, substr($this->code, $this->cursor));
+            $this->cursor = $this->end;
+
+            return;
+        }
+
+        // Find the first token after the current cursor
+        $position = $this->positions[0][++$this->position];
+        while ($position[1] < $this->cursor) {
+            if ($this->position == count($this->positions[0]) - 1) {
+                return;
+            }
+            $position = $this->positions[0][++$this->position];
+        }
+
+        // push the template text first
+        $text = $textContent = substr($this->code, $this->cursor, $position[1] - $this->cursor);
+        if (isset($this->positions[2][$this->position][0])) {
+            $text = rtrim($text);
+        }
+        $this->pushToken(Twig_Token::TEXT_TYPE, $text);
+        $this->moveCursor($textContent.$position[0]);
+
+        switch ($this->positions[1][$this->position][0]) {
+            case $this->options['tag_comment'][0]:
+                $this->lexComment();
+                break;
+
+            case $this->options['tag_block'][0]:
+                // raw data?
+                if (preg_match($this->regexes['lex_block_raw'], $this->code, $match, null, $this->cursor)) {
+                    $this->moveCursor($match[0]);
+                    $this->lexRawData($match[1]);
+                // {% line \d+ %}
+                } elseif (preg_match($this->regexes['lex_block_line'], $this->code, $match, null, $this->cursor)) {
+                    $this->moveCursor($match[0]);
+                    $this->lineno = (int) $match[1];
+                } else {
+                    $this->pushToken(Twig_Token::BLOCK_START_TYPE);
+                    $this->pushState(self::STATE_BLOCK);
+                    $this->currentVarBlockLine = $this->lineno;
+                }
+                break;
+
+            case $this->options['tag_variable'][0]:
+                $this->pushToken(Twig_Token::VAR_START_TYPE);
+                $this->pushState(self::STATE_VAR);
+                $this->currentVarBlockLine = $this->lineno;
+                break;
+        }
+    }
+
+    protected function lexBlock()
+    {
+        if (empty($this->brackets) && preg_match($this->regexes['lex_block'], $this->code, $match, null, $this->cursor)) {
+            $this->pushToken(Twig_Token::BLOCK_END_TYPE);
+            $this->moveCursor($match[0]);
+            $this->popState();
+        } else {
+            $this->lexExpression();
+        }
+    }
+
+    protected function lexVar()
+    {
+        if (empty($this->brackets) && preg_match($this->regexes['lex_var'], $this->code, $match, null, $this->cursor)) {
+            $this->pushToken(Twig_Token::VAR_END_TYPE);
+            $this->moveCursor($match[0]);
+            $this->popState();
+        } else {
+            $this->lexExpression();
+        }
+    }
+
+    protected function lexExpression()
+    {
+        // whitespace
+        if (preg_match('/\s+/A', $this->code, $match, null, $this->cursor)) {
+            $this->moveCursor($match[0]);
+
+            if ($this->cursor >= $this->end) {
+                throw new Twig_Error_Syntax(sprintf('Unclosed "%s".', $this->state === self::STATE_BLOCK ? 'block' : 'variable'), $this->currentVarBlockLine, $this->filename);
+            }
+        }
+
+        // operators
+        if (preg_match($this->regexes['operator'], $this->code, $match, null, $this->cursor)) {
+            $this->pushToken(Twig_Token::OPERATOR_TYPE, preg_replace('/\s+/', ' ', $match[0]));
+            $this->moveCursor($match[0]);
+        }
+        // names
+        elseif (preg_match(self::REGEX_NAME, $this->code, $match, null, $this->cursor)) {
+            $this->pushToken(Twig_Token::NAME_TYPE, $match[0]);
+            $this->moveCursor($match[0]);
+        }
+        // numbers
+        elseif (preg_match(self::REGEX_NUMBER, $this->code, $match, null, $this->cursor)) {
+            $number = (float) $match[0];  // floats
+            if (ctype_digit($match[0]) && $number <= PHP_INT_MAX) {
+                $number = (int) $match[0]; // integers lower than the maximum
+            }
+            $this->pushToken(Twig_Token::NUMBER_TYPE, $number);
+            $this->moveCursor($match[0]);
+        }
+        // punctuation
+        elseif (false !== strpos(self::PUNCTUATION, $this->code[$this->cursor])) {
+            // opening bracket
+            if (false !== strpos('([{', $this->code[$this->cursor])) {
+                $this->brackets[] = array($this->code[$this->cursor], $this->lineno);
+            }
+            // closing bracket
+            elseif (false !== strpos(')]}', $this->code[$this->cursor])) {
+                if (empty($this->brackets)) {
+                    throw new Twig_Error_Syntax(sprintf('Unexpected "%s".', $this->code[$this->cursor]), $this->lineno, $this->filename);
+                }
+
+                list($expect, $lineno) = array_pop($this->brackets);
+                if ($this->code[$this->cursor] != strtr($expect, '([{', ')]}')) {
+                    throw new Twig_Error_Syntax(sprintf('Unclosed "%s".', $expect), $lineno, $this->filename);
+                }
+            }
+
+            $this->pushToken(Twig_Token::PUNCTUATION_TYPE, $this->code[$this->cursor]);
+            ++$this->cursor;
+        }
+        // strings
+        elseif (preg_match(self::REGEX_STRING, $this->code, $match, null, $this->cursor)) {
+            $this->pushToken(Twig_Token::STRING_TYPE, stripcslashes(substr($match[0], 1, -1)));
+            $this->moveCursor($match[0]);
+        }
+        // opening double quoted string
+        elseif (preg_match(self::REGEX_DQ_STRING_DELIM, $this->code, $match, null, $this->cursor)) {
+            $this->brackets[] = array('"', $this->lineno);
+            $this->pushState(self::STATE_STRING);
+            $this->moveCursor($match[0]);
+        }
+        // unlexable
+        else {
+            throw new Twig_Error_Syntax(sprintf('Unexpected character "%s".', $this->code[$this->cursor]), $this->lineno, $this->filename);
+        }
+    }
+
+    protected function lexRawData($tag)
+    {
+        if ('raw' === $tag) {
+            @trigger_error(sprintf('Twig Tag "raw" is deprecated since version 1.21. Use "verbatim" instead in %s at line %d.', $this->filename, $this->lineno), E_USER_DEPRECATED);
+        }
+
+        if (!preg_match(str_replace('%s', $tag, $this->regexes['lex_raw_data']), $this->code, $match, PREG_OFFSET_CAPTURE, $this->cursor)) {
+            throw new Twig_Error_Syntax(sprintf('Unexpected end of file: Unclosed "%s" block.', $tag), $this->lineno, $this->filename);
+        }
+
+        $text = substr($this->code, $this->cursor, $match[0][1] - $this->cursor);
+        $this->moveCursor($text.$match[0][0]);
+
+        if (false !== strpos($match[1][0], $this->options['whitespace_trim'])) {
+            $text = rtrim($text);
+        }
+
+        $this->pushToken(Twig_Token::TEXT_TYPE, $text);
+    }
+
+    protected function lexComment()
+    {
+        if (!preg_match($this->regexes['lex_comment'], $this->code, $match, PREG_OFFSET_CAPTURE, $this->cursor)) {
+            throw new Twig_Error_Syntax('Unclosed comment.', $this->lineno, $this->filename);
+        }
+
+        $this->moveCursor(substr($this->code, $this->cursor, $match[0][1] - $this->cursor).$match[0][0]);
+    }
+
+    protected function lexString()
+    {
+        if (preg_match($this->regexes['interpolation_start'], $this->code, $match, null, $this->cursor)) {
+            $this->brackets[] = array($this->options['interpolation'][0], $this->lineno);
+            $this->pushToken(Twig_Token::INTERPOLATION_START_TYPE);
+            $this->moveCursor($match[0]);
+            $this->pushState(self::STATE_INTERPOLATION);
+        } elseif (preg_match(self::REGEX_DQ_STRING_PART, $this->code, $match, null, $this->cursor) && strlen($match[0]) > 0) {
+            $this->pushToken(Twig_Token::STRING_TYPE, stripcslashes($match[0]));
+            $this->moveCursor($match[0]);
+        } elseif (preg_match(self::REGEX_DQ_STRING_DELIM, $this->code, $match, null, $this->cursor)) {
+            list($expect, $lineno) = array_pop($this->brackets);
+            if ($this->code[$this->cursor] != '"') {
+                throw new Twig_Error_Syntax(sprintf('Unclosed "%s".', $expect), $lineno, $this->filename);
+            }
+
+            $this->popState();
+            ++$this->cursor;
+        }
+    }
+
+    protected function lexInterpolation()
+    {
+        $bracket = end($this->brackets);
+        if ($this->options['interpolation'][0] === $bracket[0] && preg_match($this->regexes['interpolation_end'], $this->code, $match, null, $this->cursor)) {
+            array_pop($this->brackets);
+            $this->pushToken(Twig_Token::INTERPOLATION_END_TYPE);
+            $this->moveCursor($match[0]);
+            $this->popState();
+        } else {
+            $this->lexExpression();
+        }
+    }
+
+    protected function pushToken($type, $value = '')
+    {
+        // do not push empty text tokens
+        if (Twig_Token::TEXT_TYPE === $type && '' === $value) {
+            return;
+        }
+
+        $this->tokens[] = new Twig_Token($type, $value, $this->lineno);
+    }
+
+    protected function moveCursor($text)
+    {
+        $this->cursor += strlen($text);
+        $this->lineno += substr_count($text, "\n");
+    }
+
+    protected function getOperatorRegex()
+    {
+        $operators = array_merge(
+            array('='),
+            array_keys($this->env->getUnaryOperators()),
+            array_keys($this->env->getBinaryOperators())
+        );
+
+        $operators = array_combine($operators, array_map('strlen', $operators));
+        arsort($operators);
+
+        $regex = array();
+        foreach ($operators as $operator => $length) {
+            // an operator that ends with a character must be followed by
+            // a whitespace or a parenthesis
+            if (ctype_alpha($operator[$length - 1])) {
+                $r = preg_quote($operator, '/').'(?=[\s()])';
+            } else {
+                $r = preg_quote($operator, '/');
+            }
+
+            // an operator with a space can be any amount of whitespaces
+            $r = preg_replace('/\s+/', '\s+', $r);
+
+            $regex[] = $r;
+        }
+
+        return '/'.implode('|', $regex).'/A';
+    }
+
+    protected function pushState($state)
+    {
+        $this->states[] = $this->state;
+        $this->state = $state;
+    }
+
+    protected function popState()
+    {
+        if (0 === count($this->states)) {
+            throw new Exception('Cannot pop state without a previous state');
+        }
+
+        $this->state = array_pop($this->states);
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/LexerInterface.php b/vendor/twig/twig/lib/Twig/LexerInterface.php
new file mode 100644
index 000000000..24a947870
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/LexerInterface.php
@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Interface implemented by lexer classes.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since 1.12 (to be removed in 3.0)
+ */
+interface Twig_LexerInterface
+{
+    /**
+     * Tokenizes a source code.
+     *
+     * @param string $code     The source code
+     * @param string $filename A unique identifier for the source code
+     *
+     * @return Twig_TokenStream A token stream instance
+     *
+     * @throws Twig_Error_Syntax When the code is syntactically wrong
+     */
+    public function tokenize($code, $filename = null);
+}
diff --git a/vendor/twig/twig/lib/Twig/Loader/Array.php b/vendor/twig/twig/lib/Twig/Loader/Array.php
new file mode 100644
index 000000000..90221d5db
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Loader/Array.php
@@ -0,0 +1,95 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Loads a template from an array.
+ *
+ * When using this loader with a cache mechanism, you should know that a new cache
+ * key is generated each time a template content "changes" (the cache key being the
+ * source code of the template). If you don't want to see your cache grows out of
+ * control, you need to take care of clearing the old cache file by yourself.
+ *
+ * This loader should only be used for unit testing.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Loader_Array implements Twig_LoaderInterface, Twig_ExistsLoaderInterface
+{
+    protected $templates = array();
+
+    /**
+     * Constructor.
+     *
+     * @param array $templates An array of templates (keys are the names, and values are the source code)
+     */
+    public function __construct(array $templates)
+    {
+        $this->templates = $templates;
+    }
+
+    /**
+     * Adds or overrides a template.
+     *
+     * @param string $name     The template name
+     * @param string $template The template source
+     */
+    public function setTemplate($name, $template)
+    {
+        $this->templates[(string) $name] = $template;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getSource($name)
+    {
+        $name = (string) $name;
+        if (!isset($this->templates[$name])) {
+            throw new Twig_Error_Loader(sprintf('Template "%s" is not defined.', $name));
+        }
+
+        return $this->templates[$name];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function exists($name)
+    {
+        return isset($this->templates[(string) $name]);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getCacheKey($name)
+    {
+        $name = (string) $name;
+        if (!isset($this->templates[$name])) {
+            throw new Twig_Error_Loader(sprintf('Template "%s" is not defined.', $name));
+        }
+
+        return $this->templates[$name];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isFresh($name, $time)
+    {
+        $name = (string) $name;
+        if (!isset($this->templates[$name])) {
+            throw new Twig_Error_Loader(sprintf('Template "%s" is not defined.', $name));
+        }
+
+        return true;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Loader/Chain.php b/vendor/twig/twig/lib/Twig/Loader/Chain.php
new file mode 100644
index 000000000..81d57adae
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Loader/Chain.php
@@ -0,0 +1,138 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2011 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Loads templates from other loaders.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Loader_Chain implements Twig_LoaderInterface, Twig_ExistsLoaderInterface
+{
+    private $hasSourceCache = array();
+    protected $loaders = array();
+
+    /**
+     * Constructor.
+     *
+     * @param Twig_LoaderInterface[] $loaders An array of loader instances
+     */
+    public function __construct(array $loaders = array())
+    {
+        foreach ($loaders as $loader) {
+            $this->addLoader($loader);
+        }
+    }
+
+    /**
+     * Adds a loader instance.
+     *
+     * @param Twig_LoaderInterface $loader A Loader instance
+     */
+    public function addLoader(Twig_LoaderInterface $loader)
+    {
+        $this->loaders[] = $loader;
+        $this->hasSourceCache = array();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getSource($name)
+    {
+        $exceptions = array();
+        foreach ($this->loaders as $loader) {
+            if ($loader instanceof Twig_ExistsLoaderInterface && !$loader->exists($name)) {
+                continue;
+            }
+
+            try {
+                return $loader->getSource($name);
+            } catch (Twig_Error_Loader $e) {
+                $exceptions[] = $e->getMessage();
+            }
+        }
+
+        throw new Twig_Error_Loader(sprintf('Template "%s" is not defined%s.', $name, $exceptions ? ' ('.implode(', ', $exceptions).')' : ''));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function exists($name)
+    {
+        $name = (string) $name;
+
+        if (isset($this->hasSourceCache[$name])) {
+            return $this->hasSourceCache[$name];
+        }
+
+        foreach ($this->loaders as $loader) {
+            if ($loader instanceof Twig_ExistsLoaderInterface) {
+                if ($loader->exists($name)) {
+                    return $this->hasSourceCache[$name] = true;
+                }
+
+                continue;
+            }
+
+            try {
+                $loader->getSource($name);
+
+                return $this->hasSourceCache[$name] = true;
+            } catch (Twig_Error_Loader $e) {
+            }
+        }
+
+        return $this->hasSourceCache[$name] = false;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getCacheKey($name)
+    {
+        $exceptions = array();
+        foreach ($this->loaders as $loader) {
+            if ($loader instanceof Twig_ExistsLoaderInterface && !$loader->exists($name)) {
+                continue;
+            }
+
+            try {
+                return $loader->getCacheKey($name);
+            } catch (Twig_Error_Loader $e) {
+                $exceptions[] = get_class($loader).': '.$e->getMessage();
+            }
+        }
+
+        throw new Twig_Error_Loader(sprintf('Template "%s" is not defined%s.', $name, $exceptions ? ' ('.implode(', ', $exceptions).')' : ''));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isFresh($name, $time)
+    {
+        $exceptions = array();
+        foreach ($this->loaders as $loader) {
+            if ($loader instanceof Twig_ExistsLoaderInterface && !$loader->exists($name)) {
+                continue;
+            }
+
+            try {
+                return $loader->isFresh($name, $time);
+            } catch (Twig_Error_Loader $e) {
+                $exceptions[] = get_class($loader).': '.$e->getMessage();
+            }
+        }
+
+        throw new Twig_Error_Loader(sprintf('Template "%s" is not defined%s.', $name, $exceptions ? ' ('.implode(', ', $exceptions).')' : ''));
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Loader/Filesystem.php b/vendor/twig/twig/lib/Twig/Loader/Filesystem.php
new file mode 100644
index 000000000..1bc75a104
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Loader/Filesystem.php
@@ -0,0 +1,260 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Loads template from the filesystem.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Loader_Filesystem implements Twig_LoaderInterface, Twig_ExistsLoaderInterface
+{
+    /** Identifier of the main namespace. */
+    const MAIN_NAMESPACE = '__main__';
+
+    protected $paths = array();
+    protected $cache = array();
+    protected $errorCache = array();
+
+    /**
+     * Constructor.
+     *
+     * @param string|array $paths A path or an array of paths where to look for templates
+     */
+    public function __construct($paths = array())
+    {
+        if ($paths) {
+            $this->setPaths($paths);
+        }
+    }
+
+    /**
+     * Returns the paths to the templates.
+     *
+     * @param string $namespace A path namespace
+     *
+     * @return array The array of paths where to look for templates
+     */
+    public function getPaths($namespace = self::MAIN_NAMESPACE)
+    {
+        return isset($this->paths[$namespace]) ? $this->paths[$namespace] : array();
+    }
+
+    /**
+     * Returns the path namespaces.
+     *
+     * The main namespace is always defined.
+     *
+     * @return array The array of defined namespaces
+     */
+    public function getNamespaces()
+    {
+        return array_keys($this->paths);
+    }
+
+    /**
+     * Sets the paths where templates are stored.
+     *
+     * @param string|array $paths     A path or an array of paths where to look for templates
+     * @param string       $namespace A path namespace
+     */
+    public function setPaths($paths, $namespace = self::MAIN_NAMESPACE)
+    {
+        if (!is_array($paths)) {
+            $paths = array($paths);
+        }
+
+        $this->paths[$namespace] = array();
+        foreach ($paths as $path) {
+            $this->addPath($path, $namespace);
+        }
+    }
+
+    /**
+     * Adds a path where templates are stored.
+     *
+     * @param string $path      A path where to look for templates
+     * @param string $namespace A path name
+     *
+     * @throws Twig_Error_Loader
+     */
+    public function addPath($path, $namespace = self::MAIN_NAMESPACE)
+    {
+        // invalidate the cache
+        $this->cache = $this->errorCache = array();
+
+        if (!is_dir($path)) {
+            throw new Twig_Error_Loader(sprintf('The "%s" directory does not exist.', $path));
+        }
+
+        $this->paths[$namespace][] = rtrim($path, '/\\');
+    }
+
+    /**
+     * Prepends a path where templates are stored.
+     *
+     * @param string $path      A path where to look for templates
+     * @param string $namespace A path name
+     *
+     * @throws Twig_Error_Loader
+     */
+    public function prependPath($path, $namespace = self::MAIN_NAMESPACE)
+    {
+        // invalidate the cache
+        $this->cache = $this->errorCache = array();
+
+        if (!is_dir($path)) {
+            throw new Twig_Error_Loader(sprintf('The "%s" directory does not exist.', $path));
+        }
+
+        $path = rtrim($path, '/\\');
+
+        if (!isset($this->paths[$namespace])) {
+            $this->paths[$namespace][] = $path;
+        } else {
+            array_unshift($this->paths[$namespace], $path);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getSource($name)
+    {
+        return file_get_contents($this->findTemplate($name));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getCacheKey($name)
+    {
+        return $this->findTemplate($name);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function exists($name)
+    {
+        $name = $this->normalizeName($name);
+
+        if (isset($this->cache[$name])) {
+            return true;
+        }
+
+        try {
+            return false !== $this->findTemplate($name, false);
+        } catch (Twig_Error_Loader $exception) {
+            return false;
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isFresh($name, $time)
+    {
+        return filemtime($this->findTemplate($name)) <= $time;
+    }
+
+    protected function findTemplate($name)
+    {
+        $throw = func_num_args() > 1 ? func_get_arg(1) : true;
+        $name = $this->normalizeName($name);
+
+        if (isset($this->cache[$name])) {
+            return $this->cache[$name];
+        }
+
+        if (isset($this->errorCache[$name])) {
+            if (!$throw) {
+                return false;
+            }
+
+            throw new Twig_Error_Loader($this->errorCache[$name]);
+        }
+
+        $this->validateName($name);
+
+        list($namespace, $shortname) = $this->parseName($name);
+
+        if (!isset($this->paths[$namespace])) {
+            $this->errorCache[$name] = sprintf('There are no registered paths for namespace "%s".', $namespace);
+
+            if (!$throw) {
+                return false;
+            }
+
+            throw new Twig_Error_Loader($this->errorCache[$name]);
+        }
+
+        foreach ($this->paths[$namespace] as $path) {
+            if (is_file($path.'/'.$shortname)) {
+                if (false !== $realpath = realpath($path.'/'.$shortname)) {
+                    return $this->cache[$name] = $realpath;
+                }
+
+                return $this->cache[$name] = $path.'/'.$shortname;
+            }
+        }
+
+        $this->errorCache[$name] = sprintf('Unable to find template "%s" (looked into: %s).', $name, implode(', ', $this->paths[$namespace]));
+
+        if (!$throw) {
+            return false;
+        }
+
+        throw new Twig_Error_Loader($this->errorCache[$name]);
+    }
+
+    protected function parseName($name, $default = self::MAIN_NAMESPACE)
+    {
+        if (isset($name[0]) && '@' == $name[0]) {
+            if (false === $pos = strpos($name, '/')) {
+                throw new Twig_Error_Loader(sprintf('Malformed namespaced template name "%s" (expecting "@namespace/template_name").', $name));
+            }
+
+            $namespace = substr($name, 1, $pos - 1);
+            $shortname = substr($name, $pos + 1);
+
+            return array($namespace, $shortname);
+        }
+
+        return array($default, $name);
+    }
+
+    protected function normalizeName($name)
+    {
+        return preg_replace('#/{2,}#', '/', str_replace('\\', '/', (string) $name));
+    }
+
+    protected function validateName($name)
+    {
+        if (false !== strpos($name, "\0")) {
+            throw new Twig_Error_Loader('A template name cannot contain NUL bytes.');
+        }
+
+        $name = ltrim($name, '/');
+        $parts = explode('/', $name);
+        $level = 0;
+        foreach ($parts as $part) {
+            if ('..' === $part) {
+                --$level;
+            } elseif ('.' !== $part) {
+                ++$level;
+            }
+
+            if ($level < 0) {
+                throw new Twig_Error_Loader(sprintf('Looks like you try to load a template outside configured directories (%s).', $name));
+            }
+        }
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Loader/String.php b/vendor/twig/twig/lib/Twig/Loader/String.php
new file mode 100644
index 000000000..00f507a4f
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Loader/String.php
@@ -0,0 +1,63 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+@trigger_error('The Twig_Loader_String class is deprecated since version 1.18.1 and will be removed in 2.0. Use Twig_Loader_Array instead or Twig_Environment::createTemplate().', E_USER_DEPRECATED);
+
+/**
+ * Loads a template from a string.
+ *
+ * This loader should NEVER be used. It only exists for Twig internal purposes.
+ *
+ * When using this loader with a cache mechanism, you should know that a new cache
+ * key is generated each time a template content "changes" (the cache key being the
+ * source code of the template). If you don't want to see your cache grows out of
+ * control, you need to take care of clearing the old cache file by yourself.
+ *
+ * @deprecated since 1.18.1 (to be removed in 2.0)
+ *
+ * @internal
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Loader_String implements Twig_LoaderInterface, Twig_ExistsLoaderInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function getSource($name)
+    {
+        return $name;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function exists($name)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getCacheKey($name)
+    {
+        return $name;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isFresh($name, $time)
+    {
+        return true;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/LoaderInterface.php b/vendor/twig/twig/lib/Twig/LoaderInterface.php
new file mode 100644
index 000000000..544ea4e32
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/LoaderInterface.php
@@ -0,0 +1,53 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Interface all loaders must implement.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface Twig_LoaderInterface
+{
+    /**
+     * Gets the source code of a template, given its name.
+     *
+     * @param string $name The name of the template to load
+     *
+     * @return string The template source code
+     *
+     * @throws Twig_Error_Loader When $name is not found
+     */
+    public function getSource($name);
+
+    /**
+     * Gets the cache key to use for the cache for a given template name.
+     *
+     * @param string $name The name of the template to load
+     *
+     * @return string The cache key
+     *
+     * @throws Twig_Error_Loader When $name is not found
+     */
+    public function getCacheKey($name);
+
+    /**
+     * Returns true if the template is still fresh.
+     *
+     * @param string $name The template name
+     * @param int    $time Timestamp of the last modification time of the
+     *                     cached template
+     *
+     * @return bool true if the template is fresh, false otherwise
+     *
+     * @throws Twig_Error_Loader When $name is not found
+     */
+    public function isFresh($name, $time);
+}
diff --git a/vendor/twig/twig/lib/Twig/Markup.php b/vendor/twig/twig/lib/Twig/Markup.php
new file mode 100644
index 000000000..69871fcbd
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Markup.php
@@ -0,0 +1,37 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Marks a content as safe.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Markup implements Countable
+{
+    protected $content;
+    protected $charset;
+
+    public function __construct($content, $charset)
+    {
+        $this->content = (string) $content;
+        $this->charset = $charset;
+    }
+
+    public function __toString()
+    {
+        return $this->content;
+    }
+
+    public function count()
+    {
+        return function_exists('mb_get_info') ? mb_strlen($this->content, $this->charset) : strlen($this->content);
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node.php b/vendor/twig/twig/lib/Twig/Node.php
new file mode 100644
index 000000000..3065f675a
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node.php
@@ -0,0 +1,231 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a node in the AST.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node implements Twig_NodeInterface
+{
+    protected $nodes;
+    protected $attributes;
+    protected $lineno;
+    protected $tag;
+
+    /**
+     * Constructor.
+     *
+     * The nodes are automatically made available as properties ($this->node).
+     * The attributes are automatically made available as array items ($this['name']).
+     *
+     * @param array  $nodes      An array of named nodes
+     * @param array  $attributes An array of attributes (should not be nodes)
+     * @param int    $lineno     The line number
+     * @param string $tag        The tag name associated with the Node
+     */
+    public function __construct(array $nodes = array(), array $attributes = array(), $lineno = 0, $tag = null)
+    {
+        $this->nodes = $nodes;
+        $this->attributes = $attributes;
+        $this->lineno = $lineno;
+        $this->tag = $tag;
+    }
+
+    public function __toString()
+    {
+        $attributes = array();
+        foreach ($this->attributes as $name => $value) {
+            $attributes[] = sprintf('%s: %s', $name, str_replace("\n", '', var_export($value, true)));
+        }
+
+        $repr = array(get_class($this).'('.implode(', ', $attributes));
+
+        if (count($this->nodes)) {
+            foreach ($this->nodes as $name => $node) {
+                $len = strlen($name) + 4;
+                $noderepr = array();
+                foreach (explode("\n", (string) $node) as $line) {
+                    $noderepr[] = str_repeat(' ', $len).$line;
+                }
+
+                $repr[] = sprintf('  %s: %s', $name, ltrim(implode("\n", $noderepr)));
+            }
+
+            $repr[] = ')';
+        } else {
+            $repr[0] .= ')';
+        }
+
+        return implode("\n", $repr);
+    }
+
+    /**
+     * @deprecated since 1.16.1 (to be removed in 2.0)
+     */
+    public function toXml($asDom = false)
+    {
+        @trigger_error(sprintf('%s is deprecated since version 1.16.1 and will be removed in 2.0.', __METHOD__), E_USER_DEPRECATED);
+
+        $dom = new DOMDocument('1.0', 'UTF-8');
+        $dom->formatOutput = true;
+        $dom->appendChild($xml = $dom->createElement('twig'));
+
+        $xml->appendChild($node = $dom->createElement('node'));
+        $node->setAttribute('class', get_class($this));
+
+        foreach ($this->attributes as $name => $value) {
+            $node->appendChild($attribute = $dom->createElement('attribute'));
+            $attribute->setAttribute('name', $name);
+            $attribute->appendChild($dom->createTextNode($value));
+        }
+
+        foreach ($this->nodes as $name => $n) {
+            if (null === $n) {
+                continue;
+            }
+
+            $child = $n->toXml(true)->getElementsByTagName('node')->item(0);
+            $child = $dom->importNode($child, true);
+            $child->setAttribute('name', $name);
+
+            $node->appendChild($child);
+        }
+
+        return $asDom ? $dom : $dom->saveXML();
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        foreach ($this->nodes as $node) {
+            $node->compile($compiler);
+        }
+    }
+
+    public function getLine()
+    {
+        return $this->lineno;
+    }
+
+    public function getNodeTag()
+    {
+        return $this->tag;
+    }
+
+    /**
+     * Returns true if the attribute is defined.
+     *
+     * @param string $name The attribute name
+     *
+     * @return bool true if the attribute is defined, false otherwise
+     */
+    public function hasAttribute($name)
+    {
+        return array_key_exists($name, $this->attributes);
+    }
+
+    /**
+     * Gets an attribute value by name.
+     *
+     * @param string $name
+     *
+     * @return mixed
+     */
+    public function getAttribute($name)
+    {
+        if (!array_key_exists($name, $this->attributes)) {
+            throw new LogicException(sprintf('Attribute "%s" does not exist for Node "%s".', $name, get_class($this)));
+        }
+
+        return $this->attributes[$name];
+    }
+
+    /**
+     * Sets an attribute by name to a value.
+     *
+     * @param string $name
+     * @param mixed  $value
+     */
+    public function setAttribute($name, $value)
+    {
+        $this->attributes[$name] = $value;
+    }
+
+    /**
+     * Removes an attribute by name.
+     *
+     * @param string $name
+     */
+    public function removeAttribute($name)
+    {
+        unset($this->attributes[$name]);
+    }
+
+    /**
+     * Returns true if the node with the given name exists.
+     *
+     * @param string $name
+     *
+     * @return bool
+     */
+    public function hasNode($name)
+    {
+        return array_key_exists($name, $this->nodes);
+    }
+
+    /**
+     * Gets a node by name.
+     *
+     * @param string $name
+     *
+     * @return Twig_Node
+     */
+    public function getNode($name)
+    {
+        if (!array_key_exists($name, $this->nodes)) {
+            throw new LogicException(sprintf('Node "%s" does not exist for Node "%s".', $name, get_class($this)));
+        }
+
+        return $this->nodes[$name];
+    }
+
+    /**
+     * Sets a node.
+     *
+     * @param string    $name
+     * @param Twig_Node $node
+     */
+    public function setNode($name, $node = null)
+    {
+        $this->nodes[$name] = $node;
+    }
+
+    /**
+     * Removes a node by name.
+     *
+     * @param string $name
+     */
+    public function removeNode($name)
+    {
+        unset($this->nodes[$name]);
+    }
+
+    public function count()
+    {
+        return count($this->nodes);
+    }
+
+    public function getIterator()
+    {
+        return new ArrayIterator($this->nodes);
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/AutoEscape.php b/vendor/twig/twig/lib/Twig/Node/AutoEscape.php
new file mode 100644
index 000000000..47cc998d4
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/AutoEscape.php
@@ -0,0 +1,34 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents an autoescape node.
+ *
+ * The value is the escaping strategy (can be html, js, ...)
+ *
+ * The true value is equivalent to html.
+ *
+ * If autoescaping is disabled, then the value is false.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_AutoEscape extends Twig_Node
+{
+    public function __construct($value, Twig_NodeInterface $body, $lineno, $tag = 'autoescape')
+    {
+        parent::__construct(array('body' => $body), array('value' => $value), $lineno, $tag);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler->subcompile($this->getNode('body'));
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Block.php b/vendor/twig/twig/lib/Twig/Node/Block.php
new file mode 100644
index 000000000..a05af6fb3
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Block.php
@@ -0,0 +1,39 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a block node.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Block extends Twig_Node
+{
+    public function __construct($name, Twig_NodeInterface $body, $lineno, $tag = null)
+    {
+        parent::__construct(array('body' => $body), array('name' => $name), $lineno, $tag);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->addDebugInfo($this)
+            ->write(sprintf("public function block_%s(\$context, array \$blocks = array())\n", $this->getAttribute('name')), "{\n")
+            ->indent()
+        ;
+
+        $compiler
+            ->subcompile($this->getNode('body'))
+            ->outdent()
+            ->write("}\n\n")
+        ;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/BlockReference.php b/vendor/twig/twig/lib/Twig/Node/BlockReference.php
new file mode 100644
index 000000000..9cd1551f8
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/BlockReference.php
@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a block call node.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_BlockReference extends Twig_Node implements Twig_NodeOutputInterface
+{
+    public function __construct($name, $lineno, $tag = null)
+    {
+        parent::__construct(array(), array('name' => $name), $lineno, $tag);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->addDebugInfo($this)
+            ->write(sprintf("\$this->displayBlock('%s', \$context, \$blocks);\n", $this->getAttribute('name')))
+        ;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Body.php b/vendor/twig/twig/lib/Twig/Node/Body.php
new file mode 100644
index 000000000..3ffb1342b
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Body.php
@@ -0,0 +1,19 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2011 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a body node.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Body extends Twig_Node
+{
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/CheckSecurity.php b/vendor/twig/twig/lib/Twig/Node/CheckSecurity.php
new file mode 100644
index 000000000..b4a436ab1
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/CheckSecurity.php
@@ -0,0 +1,78 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2015 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_CheckSecurity extends Twig_Node
+{
+    protected $usedFilters;
+    protected $usedTags;
+    protected $usedFunctions;
+
+    public function __construct(array $usedFilters, array $usedTags, array $usedFunctions)
+    {
+        $this->usedFilters = $usedFilters;
+        $this->usedTags = $usedTags;
+        $this->usedFunctions = $usedFunctions;
+
+        parent::__construct();
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $tags = $filters = $functions = array();
+        foreach (array('tags', 'filters', 'functions') as $type) {
+            foreach ($this->{'used'.ucfirst($type)} as $name => $node) {
+                if ($node instanceof Twig_Node) {
+                    ${$type}[$name] = $node->getLine();
+                } else {
+                    ${$type}[$node] = null;
+                }
+            }
+        }
+
+        $compiler
+            ->write('$tags = ')->repr(array_filter($tags))->raw(";\n")
+            ->write('$filters = ')->repr(array_filter($filters))->raw(";\n")
+            ->write('$functions = ')->repr(array_filter($functions))->raw(";\n\n")
+            ->write("try {\n")
+            ->indent()
+            ->write("\$this->env->getExtension('sandbox')->checkSecurity(\n")
+            ->indent()
+            ->write(!$tags ? "array(),\n" : "array('".implode("', '", array_keys($tags))."'),\n")
+            ->write(!$filters ? "array(),\n" : "array('".implode("', '", array_keys($filters))."'),\n")
+            ->write(!$functions ? "array()\n" : "array('".implode("', '", array_keys($functions))."')\n")
+            ->outdent()
+            ->write(");\n")
+            ->outdent()
+            ->write("} catch (Twig_Sandbox_SecurityError \$e) {\n")
+            ->indent()
+            ->write("\$e->setTemplateFile(\$this->getTemplateName());\n\n")
+            ->write("if (\$e instanceof Twig_Sandbox_SecurityNotAllowedTagError && isset(\$tags[\$e->getTagName()])) {\n")
+            ->indent()
+            ->write("\$e->setTemplateLine(\$tags[\$e->getTagName()]);\n")
+            ->outdent()
+            ->write("} elseif (\$e instanceof Twig_Sandbox_SecurityNotAllowedFilterError && isset(\$filters[\$e->getFilterName()])) {\n")
+            ->indent()
+            ->write("\$e->setTemplateLine(\$filters[\$e->getFilterName()]);\n")
+            ->outdent()
+            ->write("} elseif (\$e instanceof Twig_Sandbox_SecurityNotAllowedFunctionError && isset(\$functions[\$e->getFunctionName()])) {\n")
+            ->indent()
+            ->write("\$e->setTemplateLine(\$functions[\$e->getFunctionName()]);\n")
+            ->outdent()
+            ->write("}\n\n")
+            ->write("throw \$e;\n")
+            ->outdent()
+            ->write("}\n\n")
+        ;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Do.php b/vendor/twig/twig/lib/Twig/Node/Do.php
new file mode 100644
index 000000000..14fb84e97
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Do.php
@@ -0,0 +1,33 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2011 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a do node.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Do extends Twig_Node
+{
+    public function __construct(Twig_Node_Expression $expr, $lineno, $tag = null)
+    {
+        parent::__construct(array('expr' => $expr), array(), $lineno, $tag);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->addDebugInfo($this)
+            ->write('')
+            ->subcompile($this->getNode('expr'))
+            ->raw(";\n")
+        ;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Embed.php b/vendor/twig/twig/lib/Twig/Node/Embed.php
new file mode 100644
index 000000000..a21304030
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Embed.php
@@ -0,0 +1,42 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2012 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents an embed node.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Embed extends Twig_Node_Include
+{
+    // we don't inject the module to avoid node visitors to traverse it twice (as it will be already visited in the main module)
+    public function __construct($filename, $index, Twig_Node_Expression $variables = null, $only = false, $ignoreMissing = false, $lineno, $tag = null)
+    {
+        parent::__construct(new Twig_Node_Expression_Constant('not_used', $lineno), $variables, $only, $ignoreMissing, $lineno, $tag);
+
+        $this->setAttribute('filename', $filename);
+        $this->setAttribute('index', $index);
+    }
+
+    protected function addGetTemplate(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->write('$this->loadTemplate(')
+            ->string($this->getAttribute('filename'))
+            ->raw(', ')
+            ->repr($compiler->getFilename())
+            ->raw(', ')
+            ->repr($this->getLine())
+            ->raw(', ')
+            ->string($this->getAttribute('index'))
+            ->raw(')')
+        ;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression.php b/vendor/twig/twig/lib/Twig/Node/Expression.php
new file mode 100644
index 000000000..a7382e7d6
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression.php
@@ -0,0 +1,20 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Abstract class for all nodes that represents an expression.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+abstract class Twig_Node_Expression extends Twig_Node
+{
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Array.php b/vendor/twig/twig/lib/Twig/Node/Expression/Array.php
new file mode 100644
index 000000000..83e583b04
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Array.php
@@ -0,0 +1,81 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Array extends Twig_Node_Expression
+{
+    protected $index;
+
+    public function __construct(array $elements, $lineno)
+    {
+        parent::__construct($elements, array(), $lineno);
+
+        $this->index = -1;
+        foreach ($this->getKeyValuePairs() as $pair) {
+            if ($pair['key'] instanceof Twig_Node_Expression_Constant && ctype_digit((string) $pair['key']->getAttribute('value')) && $pair['key']->getAttribute('value') > $this->index) {
+                $this->index = $pair['key']->getAttribute('value');
+            }
+        }
+    }
+
+    public function getKeyValuePairs()
+    {
+        $pairs = array();
+
+        foreach (array_chunk($this->nodes, 2) as $pair) {
+            $pairs[] = array(
+                'key' => $pair[0],
+                'value' => $pair[1],
+            );
+        }
+
+        return $pairs;
+    }
+
+    public function hasElement(Twig_Node_Expression $key)
+    {
+        foreach ($this->getKeyValuePairs() as $pair) {
+            // we compare the string representation of the keys
+            // to avoid comparing the line numbers which are not relevant here.
+            if ((string) $key == (string) $pair['key']) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    public function addElement(Twig_Node_Expression $value, Twig_Node_Expression $key = null)
+    {
+        if (null === $key) {
+            $key = new Twig_Node_Expression_Constant(++$this->index, $value->getLine());
+        }
+
+        array_push($this->nodes, $key, $value);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler->raw('array(');
+        $first = true;
+        foreach ($this->getKeyValuePairs() as $pair) {
+            if (!$first) {
+                $compiler->raw(', ');
+            }
+            $first = false;
+
+            $compiler
+                ->subcompile($pair['key'])
+                ->raw(' => ')
+                ->subcompile($pair['value'])
+            ;
+        }
+        $compiler->raw(')');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/AssignName.php b/vendor/twig/twig/lib/Twig/Node/Expression/AssignName.php
new file mode 100644
index 000000000..ce0c5fbc5
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/AssignName.php
@@ -0,0 +1,23 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Node_Expression_AssignName extends Twig_Node_Expression_Name
+{
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->raw('$context[')
+            ->string($this->getAttribute('name'))
+            ->raw(']')
+        ;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary.php
new file mode 100644
index 000000000..c821db526
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary.php
@@ -0,0 +1,35 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+abstract class Twig_Node_Expression_Binary extends Twig_Node_Expression
+{
+    public function __construct(Twig_NodeInterface $left, Twig_NodeInterface $right, $lineno)
+    {
+        parent::__construct(array('left' => $left, 'right' => $right), array(), $lineno);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->raw('(')
+            ->subcompile($this->getNode('left'))
+            ->raw(' ')
+        ;
+        $this->operator($compiler);
+        $compiler
+            ->raw(' ')
+            ->subcompile($this->getNode('right'))
+            ->raw(')')
+        ;
+    }
+
+    abstract public function operator(Twig_Compiler $compiler);
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Add.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Add.php
new file mode 100644
index 000000000..0ef8e1172
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Add.php
@@ -0,0 +1,18 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_Add extends Twig_Node_Expression_Binary
+{
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('+');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/And.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/And.php
new file mode 100644
index 000000000..d5752ebba
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/And.php
@@ -0,0 +1,18 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_And extends Twig_Node_Expression_Binary
+{
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('&&');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/BitwiseAnd.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/BitwiseAnd.php
new file mode 100644
index 000000000..9a46d8455
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/BitwiseAnd.php
@@ -0,0 +1,18 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_BitwiseAnd extends Twig_Node_Expression_Binary
+{
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('&');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/BitwiseOr.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/BitwiseOr.php
new file mode 100644
index 000000000..058a20bf6
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/BitwiseOr.php
@@ -0,0 +1,18 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_BitwiseOr extends Twig_Node_Expression_Binary
+{
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('|');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/BitwiseXor.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/BitwiseXor.php
new file mode 100644
index 000000000..f4da73d44
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/BitwiseXor.php
@@ -0,0 +1,18 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_BitwiseXor extends Twig_Node_Expression_Binary
+{
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('^');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Concat.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Concat.php
new file mode 100644
index 000000000..f9a646270
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Concat.php
@@ -0,0 +1,18 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_Concat extends Twig_Node_Expression_Binary
+{
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('.');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Div.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Div.php
new file mode 100644
index 000000000..e0797a612
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Div.php
@@ -0,0 +1,18 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_Div extends Twig_Node_Expression_Binary
+{
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('/');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/EndsWith.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/EndsWith.php
new file mode 100644
index 000000000..93b3b96f0
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/EndsWith.php
@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2013 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_EndsWith extends Twig_Node_Expression_Binary
+{
+    public function compile(Twig_Compiler $compiler)
+    {
+        $left = $compiler->getVarName();
+        $right = $compiler->getVarName();
+        $compiler
+            ->raw(sprintf('(is_string($%s = ', $left))
+            ->subcompile($this->getNode('left'))
+            ->raw(sprintf(') && is_string($%s = ', $right))
+            ->subcompile($this->getNode('right'))
+            ->raw(sprintf(') && (\'\' === $%2$s || $%2$s === substr($%1$s, -strlen($%2$s))))', $left, $right))
+        ;
+    }
+
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Equal.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Equal.php
new file mode 100644
index 000000000..7b1236d0a
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Equal.php
@@ -0,0 +1,17 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_Equal extends Twig_Node_Expression_Binary
+{
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('==');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/FloorDiv.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/FloorDiv.php
new file mode 100644
index 000000000..b606f6d1e
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/FloorDiv.php
@@ -0,0 +1,24 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_FloorDiv extends Twig_Node_Expression_Binary
+{
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler->raw('intval(floor(');
+        parent::compile($compiler);
+        $compiler->raw('))');
+    }
+
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('/');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Greater.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Greater.php
new file mode 100644
index 000000000..a110bd92d
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Greater.php
@@ -0,0 +1,17 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_Greater extends Twig_Node_Expression_Binary
+{
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('>');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/GreaterEqual.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/GreaterEqual.php
new file mode 100644
index 000000000..3754fed21
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/GreaterEqual.php
@@ -0,0 +1,17 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_GreaterEqual extends Twig_Node_Expression_Binary
+{
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('>=');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/In.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/In.php
new file mode 100644
index 000000000..9565a6088
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/In.php
@@ -0,0 +1,28 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_In extends Twig_Node_Expression_Binary
+{
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->raw('twig_in_filter(')
+            ->subcompile($this->getNode('left'))
+            ->raw(', ')
+            ->subcompile($this->getNode('right'))
+            ->raw(')')
+        ;
+    }
+
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('in');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Less.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Less.php
new file mode 100644
index 000000000..45fd30049
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Less.php
@@ -0,0 +1,17 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_Less extends Twig_Node_Expression_Binary
+{
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('<');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/LessEqual.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/LessEqual.php
new file mode 100644
index 000000000..e38e257c3
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/LessEqual.php
@@ -0,0 +1,17 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_LessEqual extends Twig_Node_Expression_Binary
+{
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('<=');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Matches.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Matches.php
new file mode 100644
index 000000000..93bb29205
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Matches.php
@@ -0,0 +1,28 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2013 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_Matches extends Twig_Node_Expression_Binary
+{
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->raw('preg_match(')
+            ->subcompile($this->getNode('right'))
+            ->raw(', ')
+            ->subcompile($this->getNode('left'))
+            ->raw(')')
+        ;
+    }
+
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Mod.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Mod.php
new file mode 100644
index 000000000..9924114fb
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Mod.php
@@ -0,0 +1,18 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_Mod extends Twig_Node_Expression_Binary
+{
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('%');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Mul.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Mul.php
new file mode 100644
index 000000000..c91529ca6
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Mul.php
@@ -0,0 +1,18 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_Mul extends Twig_Node_Expression_Binary
+{
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('*');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/NotEqual.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/NotEqual.php
new file mode 100644
index 000000000..26867ba20
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/NotEqual.php
@@ -0,0 +1,17 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_NotEqual extends Twig_Node_Expression_Binary
+{
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('!=');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/NotIn.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/NotIn.php
new file mode 100644
index 000000000..49ab39e9d
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/NotIn.php
@@ -0,0 +1,28 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_NotIn extends Twig_Node_Expression_Binary
+{
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->raw('!twig_in_filter(')
+            ->subcompile($this->getNode('left'))
+            ->raw(', ')
+            ->subcompile($this->getNode('right'))
+            ->raw(')')
+        ;
+    }
+
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('not in');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Or.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Or.php
new file mode 100644
index 000000000..adba49c6f
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Or.php
@@ -0,0 +1,18 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_Or extends Twig_Node_Expression_Binary
+{
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('||');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Power.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Power.php
new file mode 100644
index 000000000..cd6d04627
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Power.php
@@ -0,0 +1,28 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_Power extends Twig_Node_Expression_Binary
+{
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->raw('pow(')
+            ->subcompile($this->getNode('left'))
+            ->raw(', ')
+            ->subcompile($this->getNode('right'))
+            ->raw(')')
+        ;
+    }
+
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('**');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Range.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Range.php
new file mode 100644
index 000000000..692ec9c6d
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Range.php
@@ -0,0 +1,28 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_Range extends Twig_Node_Expression_Binary
+{
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->raw('range(')
+            ->subcompile($this->getNode('left'))
+            ->raw(', ')
+            ->subcompile($this->getNode('right'))
+            ->raw(')')
+        ;
+    }
+
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('..');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/StartsWith.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/StartsWith.php
new file mode 100644
index 000000000..d2e30d66e
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/StartsWith.php
@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2013 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_StartsWith extends Twig_Node_Expression_Binary
+{
+    public function compile(Twig_Compiler $compiler)
+    {
+        $left = $compiler->getVarName();
+        $right = $compiler->getVarName();
+        $compiler
+            ->raw(sprintf('(is_string($%s = ', $left))
+            ->subcompile($this->getNode('left'))
+            ->raw(sprintf(') && is_string($%s = ', $right))
+            ->subcompile($this->getNode('right'))
+            ->raw(sprintf(') && (\'\' === $%2$s || 0 === strpos($%1$s, $%2$s)))', $left, $right))
+        ;
+    }
+
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Sub.php b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Sub.php
new file mode 100644
index 000000000..d44639915
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Binary/Sub.php
@@ -0,0 +1,18 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Binary_Sub extends Twig_Node_Expression_Binary
+{
+    public function operator(Twig_Compiler $compiler)
+    {
+        return $compiler->raw('-');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/BlockReference.php b/vendor/twig/twig/lib/Twig/Node/Expression/BlockReference.php
new file mode 100644
index 000000000..f6ed6ff4a
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/BlockReference.php
@@ -0,0 +1,46 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a block call node.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Expression_BlockReference extends Twig_Node_Expression
+{
+    public function __construct(Twig_NodeInterface $name, $asString = false, $lineno, $tag = null)
+    {
+        parent::__construct(array('name' => $name), array('as_string' => $asString, 'output' => false), $lineno, $tag);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        if ($this->getAttribute('as_string')) {
+            $compiler->raw('(string) ');
+        }
+
+        if ($this->getAttribute('output')) {
+            $compiler
+                ->addDebugInfo($this)
+                ->write('$this->displayBlock(')
+                ->subcompile($this->getNode('name'))
+                ->raw(", \$context, \$blocks);\n")
+            ;
+        } else {
+            $compiler
+                ->raw('$this->renderBlock(')
+                ->subcompile($this->getNode('name'))
+                ->raw(', $context, $blocks)')
+            ;
+        }
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Call.php b/vendor/twig/twig/lib/Twig/Node/Expression/Call.php
new file mode 100644
index 000000000..240553f93
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Call.php
@@ -0,0 +1,253 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2012 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+abstract class Twig_Node_Expression_Call extends Twig_Node_Expression
+{
+    protected function compileCallable(Twig_Compiler $compiler)
+    {
+        $closingParenthesis = false;
+        if ($this->hasAttribute('callable') && $callable = $this->getAttribute('callable')) {
+            if (is_string($callable)) {
+                $compiler->raw($callable);
+            } elseif (is_array($callable) && $callable[0] instanceof Twig_ExtensionInterface) {
+                $compiler->raw(sprintf('$this->env->getExtension(\'%s\')->%s', $callable[0]->getName(), $callable[1]));
+            } else {
+                $type = ucfirst($this->getAttribute('type'));
+                $compiler->raw(sprintf('call_user_func_array($this->env->get%s(\'%s\')->getCallable(), array', $type, $this->getAttribute('name')));
+                $closingParenthesis = true;
+            }
+        } else {
+            $compiler->raw($this->getAttribute('thing')->compile());
+        }
+
+        $this->compileArguments($compiler);
+
+        if ($closingParenthesis) {
+            $compiler->raw(')');
+        }
+    }
+
+    protected function compileArguments(Twig_Compiler $compiler)
+    {
+        $compiler->raw('(');
+
+        $first = true;
+
+        if ($this->hasAttribute('needs_environment') && $this->getAttribute('needs_environment')) {
+            $compiler->raw('$this->env');
+            $first = false;
+        }
+
+        if ($this->hasAttribute('needs_context') && $this->getAttribute('needs_context')) {
+            if (!$first) {
+                $compiler->raw(', ');
+            }
+            $compiler->raw('$context');
+            $first = false;
+        }
+
+        if ($this->hasAttribute('arguments')) {
+            foreach ($this->getAttribute('arguments') as $argument) {
+                if (!$first) {
+                    $compiler->raw(', ');
+                }
+                $compiler->string($argument);
+                $first = false;
+            }
+        }
+
+        if ($this->hasNode('node')) {
+            if (!$first) {
+                $compiler->raw(', ');
+            }
+            $compiler->subcompile($this->getNode('node'));
+            $first = false;
+        }
+
+        if ($this->hasNode('arguments') && null !== $this->getNode('arguments')) {
+            $callable = $this->hasAttribute('callable') ? $this->getAttribute('callable') : null;
+
+            $arguments = $this->getArguments($callable, $this->getNode('arguments'));
+
+            foreach ($arguments as $node) {
+                if (!$first) {
+                    $compiler->raw(', ');
+                }
+                $compiler->subcompile($node);
+                $first = false;
+            }
+        }
+
+        $compiler->raw(')');
+    }
+
+    protected function getArguments($callable, $arguments)
+    {
+        $callType = $this->getAttribute('type');
+        $callName = $this->getAttribute('name');
+
+        $parameters = array();
+        $named = false;
+        foreach ($arguments as $name => $node) {
+            if (!is_int($name)) {
+                $named = true;
+                $name = $this->normalizeName($name);
+            } elseif ($named) {
+                throw new Twig_Error_Syntax(sprintf('Positional arguments cannot be used after named arguments for %s "%s".', $callType, $callName));
+            }
+
+            $parameters[$name] = $node;
+        }
+
+        $isVariadic = $this->hasAttribute('is_variadic') && $this->getAttribute('is_variadic');
+        if (!$named && !$isVariadic) {
+            return $parameters;
+        }
+
+        if (!$callable) {
+            if ($named) {
+                $message = sprintf('Named arguments are not supported for %s "%s".', $callType, $callName);
+            } else {
+                $message = sprintf('Arbitrary positional arguments are not supported for %s "%s".', $callType, $callName);
+            }
+
+            throw new LogicException($message);
+        }
+
+        // manage named arguments
+        $callableParameters = $this->getCallableParameters($callable, $isVariadic);
+        $arguments = array();
+        $names = array();
+        $missingArguments = array();
+        $optionalArguments = array();
+        $pos = 0;
+        foreach ($callableParameters as $callableParameter) {
+            $names[] = $name = $this->normalizeName($callableParameter->name);
+
+            if (array_key_exists($name, $parameters)) {
+                if (array_key_exists($pos, $parameters)) {
+                    throw new Twig_Error_Syntax(sprintf('Argument "%s" is defined twice for %s "%s".', $name, $callType, $callName));
+                }
+
+                if (!empty($missingArguments)) {
+                    throw new Twig_Error_Syntax(sprintf(
+                        'Argument "%s" could not be assigned for %s "%s(%s)" because it is mapped to an internal PHP function which cannot determine default value for optional argument%s "%s".',
+                        $name, $callType, $callName, implode(', ', $names), count($missingArguments) > 1 ? 's' : '', implode('", "', $missingArguments))
+                    );
+                }
+
+                $arguments = array_merge($arguments, $optionalArguments);
+                $arguments[] = $parameters[$name];
+                unset($parameters[$name]);
+                $optionalArguments = array();
+            } elseif (array_key_exists($pos, $parameters)) {
+                $arguments = array_merge($arguments, $optionalArguments);
+                $arguments[] = $parameters[$pos];
+                unset($parameters[$pos]);
+                $optionalArguments = array();
+                ++$pos;
+            } elseif ($callableParameter->isDefaultValueAvailable()) {
+                $optionalArguments[] = new Twig_Node_Expression_Constant($callableParameter->getDefaultValue(), -1);
+            } elseif ($callableParameter->isOptional()) {
+                if (empty($parameters)) {
+                    break;
+                } else {
+                    $missingArguments[] = $name;
+                }
+            } else {
+                throw new Twig_Error_Syntax(sprintf('Value for argument "%s" is required for %s "%s".', $name, $callType, $callName));
+            }
+        }
+
+        if ($isVariadic) {
+            $arbitraryArguments = new Twig_Node_Expression_Array(array(), -1);
+            foreach ($parameters as $key => $value) {
+                if (is_int($key)) {
+                    $arbitraryArguments->addElement($value);
+                } else {
+                    $arbitraryArguments->addElement($value, new Twig_Node_Expression_Constant($key, -1));
+                }
+                unset($parameters[$key]);
+            }
+
+            if ($arbitraryArguments->count()) {
+                $arguments = array_merge($arguments, $optionalArguments);
+                $arguments[] = $arbitraryArguments;
+            }
+        }
+
+        if (!empty($parameters)) {
+            $unknownParameter = null;
+            foreach ($parameters as $parameter) {
+                if ($parameter instanceof Twig_Node) {
+                    $unknownParameter = $parameter;
+                    break;
+                }
+            }
+
+            throw new Twig_Error_Syntax(sprintf(
+                'Unknown argument%s "%s" for %s "%s(%s)".',
+                count($parameters) > 1 ? 's' : '', implode('", "', array_keys($parameters)), $callType, $callName, implode(', ', $names)
+            ), $unknownParameter ? $unknownParameter->getLine() : -1);
+        }
+
+        return $arguments;
+    }
+
+    protected function normalizeName($name)
+    {
+        return strtolower(preg_replace(array('/([A-Z]+)([A-Z][a-z])/', '/([a-z\d])([A-Z])/'), array('\\1_\\2', '\\1_\\2'), $name));
+    }
+
+    private function getCallableParameters($callable, $isVariadic)
+    {
+        if (is_array($callable)) {
+            $r = new ReflectionMethod($callable[0], $callable[1]);
+        } elseif (is_object($callable) && !$callable instanceof Closure) {
+            $r = new ReflectionObject($callable);
+            $r = $r->getMethod('__invoke');
+        } elseif (is_string($callable) && false !== strpos($callable, '::')) {
+            $r = new ReflectionMethod($callable);
+        } else {
+            $r = new ReflectionFunction($callable);
+        }
+
+        $parameters = $r->getParameters();
+        if ($this->hasNode('node')) {
+            array_shift($parameters);
+        }
+        if ($this->hasAttribute('needs_environment') && $this->getAttribute('needs_environment')) {
+            array_shift($parameters);
+        }
+        if ($this->hasAttribute('needs_context') && $this->getAttribute('needs_context')) {
+            array_shift($parameters);
+        }
+        if ($this->hasAttribute('arguments') && null !== $this->getAttribute('arguments')) {
+            foreach ($this->getAttribute('arguments') as $argument) {
+                array_shift($parameters);
+            }
+        }
+        if ($isVariadic) {
+            $argument = end($parameters);
+            if ($argument && $argument->isArray() && $argument->isDefaultValueAvailable() && array() === $argument->getDefaultValue()) {
+                array_pop($parameters);
+            } else {
+                $callableName = $r->name;
+                if ($r->getDeclaringClass()) {
+                    $callableName = $r->getDeclaringClass()->name.'::'.$callableName;
+                }
+
+                throw new LogicException(sprintf('The last parameter of "%s" for %s "%s" must be an array with default value, eg. "array $arg = array()".', $callableName, $this->getAttribute('type'), $this->getAttribute('name')));
+            }
+        }
+
+        return $parameters;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Conditional.php b/vendor/twig/twig/lib/Twig/Node/Expression/Conditional.php
new file mode 100644
index 000000000..edcb1e2d2
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Conditional.php
@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Conditional extends Twig_Node_Expression
+{
+    public function __construct(Twig_Node_Expression $expr1, Twig_Node_Expression $expr2, Twig_Node_Expression $expr3, $lineno)
+    {
+        parent::__construct(array('expr1' => $expr1, 'expr2' => $expr2, 'expr3' => $expr3), array(), $lineno);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->raw('((')
+            ->subcompile($this->getNode('expr1'))
+            ->raw(') ? (')
+            ->subcompile($this->getNode('expr2'))
+            ->raw(') : (')
+            ->subcompile($this->getNode('expr3'))
+            ->raw('))')
+        ;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Constant.php b/vendor/twig/twig/lib/Twig/Node/Expression/Constant.php
new file mode 100644
index 000000000..a91dc6985
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Constant.php
@@ -0,0 +1,23 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Constant extends Twig_Node_Expression
+{
+    public function __construct($value, $lineno)
+    {
+        parent::__construct(array(), array('value' => $value), $lineno);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler->repr($this->getAttribute('value'));
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/ExtensionReference.php b/vendor/twig/twig/lib/Twig/Node/Expression/ExtensionReference.php
new file mode 100644
index 000000000..b4882e360
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/ExtensionReference.php
@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+@trigger_error('The Twig_Node_Expression_ExtensionReference class is deprecated since version 1.23 and will be removed in 2.0.', E_USER_DEPRECATED);
+
+/**
+ * Represents an extension call node.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since 1.23 and will be removed in 2.0.
+ */
+class Twig_Node_Expression_ExtensionReference extends Twig_Node_Expression
+{
+    public function __construct($name, $lineno, $tag = null)
+    {
+        parent::__construct(array(), array('name' => $name), $lineno, $tag);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler->raw(sprintf("\$this->env->getExtension('%s')", $this->getAttribute('name')));
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Filter.php b/vendor/twig/twig/lib/Twig/Node/Expression/Filter.php
new file mode 100644
index 000000000..a906232ea
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Filter.php
@@ -0,0 +1,39 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Filter extends Twig_Node_Expression_Call
+{
+    public function __construct(Twig_NodeInterface $node, Twig_Node_Expression_Constant $filterName, Twig_NodeInterface $arguments, $lineno, $tag = null)
+    {
+        parent::__construct(array('node' => $node, 'filter' => $filterName, 'arguments' => $arguments), array(), $lineno, $tag);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $name = $this->getNode('filter')->getAttribute('value');
+        $filter = $compiler->getEnvironment()->getFilter($name);
+
+        $this->setAttribute('name', $name);
+        $this->setAttribute('type', 'filter');
+        $this->setAttribute('thing', $filter);
+        $this->setAttribute('needs_environment', $filter->needsEnvironment());
+        $this->setAttribute('needs_context', $filter->needsContext());
+        $this->setAttribute('arguments', $filter->getArguments());
+        if ($filter instanceof Twig_FilterCallableInterface || $filter instanceof Twig_SimpleFilter) {
+            $this->setAttribute('callable', $filter->getCallable());
+        }
+        if ($filter instanceof Twig_SimpleFilter) {
+            $this->setAttribute('is_variadic', $filter->isVariadic());
+        }
+
+        $this->compileCallable($compiler);
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Filter/Default.php b/vendor/twig/twig/lib/Twig/Node/Expression/Filter/Default.php
new file mode 100644
index 000000000..1827c8886
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Filter/Default.php
@@ -0,0 +1,43 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2011 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Returns the value or the default value when it is undefined or empty.
+ *
+ * <pre>
+ *  {{ var.foo|default('foo item on var is not defined') }}
+ * </pre>
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Expression_Filter_Default extends Twig_Node_Expression_Filter
+{
+    public function __construct(Twig_NodeInterface $node, Twig_Node_Expression_Constant $filterName, Twig_NodeInterface $arguments, $lineno, $tag = null)
+    {
+        $default = new Twig_Node_Expression_Filter($node, new Twig_Node_Expression_Constant('default', $node->getLine()), $arguments, $node->getLine());
+
+        if ('default' === $filterName->getAttribute('value') && ($node instanceof Twig_Node_Expression_Name || $node instanceof Twig_Node_Expression_GetAttr)) {
+            $test = new Twig_Node_Expression_Test_Defined(clone $node, 'defined', new Twig_Node(), $node->getLine());
+            $false = count($arguments) ? $arguments->getNode(0) : new Twig_Node_Expression_Constant('', $node->getLine());
+
+            $node = new Twig_Node_Expression_Conditional($test, $default, $false, $node->getLine());
+        } else {
+            $node = $default;
+        }
+
+        parent::__construct($node, $filterName, $arguments, $lineno, $tag);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler->subcompile($this->getNode('node'));
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Function.php b/vendor/twig/twig/lib/Twig/Node/Expression/Function.php
new file mode 100644
index 000000000..7326ede26
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Function.php
@@ -0,0 +1,38 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Function extends Twig_Node_Expression_Call
+{
+    public function __construct($name, Twig_NodeInterface $arguments, $lineno)
+    {
+        parent::__construct(array('arguments' => $arguments), array('name' => $name), $lineno);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $name = $this->getAttribute('name');
+        $function = $compiler->getEnvironment()->getFunction($name);
+
+        $this->setAttribute('name', $name);
+        $this->setAttribute('type', 'function');
+        $this->setAttribute('thing', $function);
+        $this->setAttribute('needs_environment', $function->needsEnvironment());
+        $this->setAttribute('needs_context', $function->needsContext());
+        $this->setAttribute('arguments', $function->getArguments());
+        if ($function instanceof Twig_FunctionCallableInterface || $function instanceof Twig_SimpleFunction) {
+            $this->setAttribute('callable', $function->getCallable());
+        }
+        if ($function instanceof Twig_SimpleFunction) {
+            $this->setAttribute('is_variadic', $function->isVariadic());
+        }
+
+        $this->compileCallable($compiler);
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/GetAttr.php b/vendor/twig/twig/lib/Twig/Node/Expression/GetAttr.php
new file mode 100644
index 000000000..6ce61111c
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/GetAttr.php
@@ -0,0 +1,63 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_GetAttr extends Twig_Node_Expression
+{
+    public function __construct(Twig_Node_Expression $node, Twig_Node_Expression $attribute, Twig_Node_Expression $arguments = null, $type, $lineno)
+    {
+        parent::__construct(array('node' => $node, 'attribute' => $attribute, 'arguments' => $arguments), array('type' => $type, 'is_defined_test' => false, 'ignore_strict_check' => false, 'disable_c_ext' => false), $lineno);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        if (function_exists('twig_template_get_attributes') && !$this->getAttribute('disable_c_ext')) {
+            $compiler->raw('twig_template_get_attributes($this, ');
+        } else {
+            $compiler->raw('$this->getAttribute(');
+        }
+
+        if ($this->getAttribute('ignore_strict_check')) {
+            $this->getNode('node')->setAttribute('ignore_strict_check', true);
+        }
+
+        $compiler->subcompile($this->getNode('node'));
+
+        $compiler->raw(', ')->subcompile($this->getNode('attribute'));
+
+        // only generate optional arguments when needed (to make generated code more readable)
+        $needFourth = $this->getAttribute('ignore_strict_check');
+        $needThird = $needFourth || $this->getAttribute('is_defined_test');
+        $needSecond = $needThird || Twig_Template::ANY_CALL !== $this->getAttribute('type');
+        $needFirst = $needSecond || null !== $this->getNode('arguments');
+
+        if ($needFirst) {
+            if (null !== $this->getNode('arguments')) {
+                $compiler->raw(', ')->subcompile($this->getNode('arguments'));
+            } else {
+                $compiler->raw(', array()');
+            }
+        }
+
+        if ($needSecond) {
+            $compiler->raw(', ')->repr($this->getAttribute('type'));
+        }
+
+        if ($needThird) {
+            $compiler->raw(', ')->repr($this->getAttribute('is_defined_test'));
+        }
+
+        if ($needFourth) {
+            $compiler->raw(', ')->repr($this->getAttribute('ignore_strict_check'));
+        }
+
+        $compiler->raw(')');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/MethodCall.php b/vendor/twig/twig/lib/Twig/Node/Expression/MethodCall.php
new file mode 100644
index 000000000..620b02bf4
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/MethodCall.php
@@ -0,0 +1,41 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2012 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_MethodCall extends Twig_Node_Expression
+{
+    public function __construct(Twig_Node_Expression $node, $method, Twig_Node_Expression_Array $arguments, $lineno)
+    {
+        parent::__construct(array('node' => $node, 'arguments' => $arguments), array('method' => $method, 'safe' => false), $lineno);
+
+        if ($node instanceof Twig_Node_Expression_Name) {
+            $node->setAttribute('always_defined', true);
+        }
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->subcompile($this->getNode('node'))
+            ->raw('->')
+            ->raw($this->getAttribute('method'))
+            ->raw('(')
+        ;
+        $first = true;
+        foreach ($this->getNode('arguments')->getKeyValuePairs() as $pair) {
+            if (!$first) {
+                $compiler->raw(', ');
+            }
+            $first = false;
+
+            $compiler->subcompile($pair['value']);
+        }
+        $compiler->raw(')');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Name.php b/vendor/twig/twig/lib/Twig/Node/Expression/Name.php
new file mode 100644
index 000000000..a6e0ff420
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Name.php
@@ -0,0 +1,90 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Name extends Twig_Node_Expression
+{
+    protected $specialVars = array(
+        '_self' => '$this',
+        '_context' => '$context',
+        '_charset' => '$this->env->getCharset()',
+    );
+
+    public function __construct($name, $lineno)
+    {
+        parent::__construct(array(), array('name' => $name, 'is_defined_test' => false, 'ignore_strict_check' => false, 'always_defined' => false), $lineno);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $name = $this->getAttribute('name');
+
+        $compiler->addDebugInfo($this);
+
+        if ($this->getAttribute('is_defined_test')) {
+            if ($this->isSpecial()) {
+                $compiler->repr(true);
+            } else {
+                $compiler->raw('array_key_exists(')->repr($name)->raw(', $context)');
+            }
+        } elseif ($this->isSpecial()) {
+            $compiler->raw($this->specialVars[$name]);
+        } elseif ($this->getAttribute('always_defined')) {
+            $compiler
+                ->raw('$context[')
+                ->string($name)
+                ->raw(']')
+            ;
+        } else {
+            // remove the non-PHP 5.4 version when PHP 5.3 support is dropped
+            // as the non-optimized version is just a workaround for slow ternary operator
+            // when the context has a lot of variables
+            if (PHP_VERSION_ID >= 50400) {
+                // PHP 5.4 ternary operator performance was optimized
+                $compiler
+                    ->raw('(isset($context[')
+                    ->string($name)
+                    ->raw(']) ? $context[')
+                    ->string($name)
+                    ->raw('] : ')
+                ;
+
+                if ($this->getAttribute('ignore_strict_check') || !$compiler->getEnvironment()->isStrictVariables()) {
+                    $compiler->raw('null)');
+                } else {
+                    $compiler->raw('$this->getContext($context, ')->string($name)->raw('))');
+                }
+            } else {
+                $compiler
+                    ->raw('$this->getContext($context, ')
+                    ->string($name)
+                ;
+
+                if ($this->getAttribute('ignore_strict_check')) {
+                    $compiler->raw(', true');
+                }
+
+                $compiler
+                    ->raw(')')
+                ;
+            }
+        }
+    }
+
+    public function isSpecial()
+    {
+        return isset($this->specialVars[$this->getAttribute('name')]);
+    }
+
+    public function isSimple()
+    {
+        return !$this->isSpecial() && !$this->getAttribute('is_defined_test');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/NullCoalesce.php b/vendor/twig/twig/lib/Twig/Node/Expression/NullCoalesce.php
new file mode 100644
index 000000000..10039130c
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/NullCoalesce.php
@@ -0,0 +1,23 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_NullCoalesce extends Twig_Node_Expression_Conditional
+{
+    public function __construct(Twig_NodeInterface $left, Twig_NodeInterface $right, $lineno)
+    {
+        $test = new Twig_Node_Expression_Binary_And(
+            new Twig_Node_Expression_Test_Defined(clone $left, 'defined', new Twig_Node(), $left->getLine()),
+            new Twig_Node_Expression_Unary_Not(new Twig_Node_Expression_Test_Null($left, 'null', new Twig_Node(), $left->getLine()), $left->getLine()),
+            $left->getLine()
+        );
+
+        parent::__construct($test, $left, $right, $lineno);
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Parent.php b/vendor/twig/twig/lib/Twig/Node/Expression/Parent.php
new file mode 100644
index 000000000..694c08045
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Parent.php
@@ -0,0 +1,42 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a parent node.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Expression_Parent extends Twig_Node_Expression
+{
+    public function __construct($name, $lineno, $tag = null)
+    {
+        parent::__construct(array(), array('output' => false, 'name' => $name), $lineno, $tag);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        if ($this->getAttribute('output')) {
+            $compiler
+                ->addDebugInfo($this)
+                ->write('$this->displayParentBlock(')
+                ->string($this->getAttribute('name'))
+                ->raw(", \$context, \$blocks);\n")
+            ;
+        } else {
+            $compiler
+                ->raw('$this->renderParentBlock(')
+                ->string($this->getAttribute('name'))
+                ->raw(', $context, $blocks)')
+            ;
+        }
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/TempName.php b/vendor/twig/twig/lib/Twig/Node/Expression/TempName.php
new file mode 100644
index 000000000..e6b058e85
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/TempName.php
@@ -0,0 +1,26 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2011 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_TempName extends Twig_Node_Expression
+{
+    public function __construct($name, $lineno)
+    {
+        parent::__construct(array(), array('name' => $name), $lineno);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->raw('$_')
+            ->raw($this->getAttribute('name'))
+            ->raw('_')
+        ;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Test.php b/vendor/twig/twig/lib/Twig/Node/Expression/Test.php
new file mode 100644
index 000000000..c0358c8bf
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Test.php
@@ -0,0 +1,35 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Test extends Twig_Node_Expression_Call
+{
+    public function __construct(Twig_NodeInterface $node, $name, Twig_NodeInterface $arguments = null, $lineno)
+    {
+        parent::__construct(array('node' => $node, 'arguments' => $arguments), array('name' => $name), $lineno);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $name = $this->getAttribute('name');
+        $test = $compiler->getEnvironment()->getTest($name);
+
+        $this->setAttribute('name', $name);
+        $this->setAttribute('type', 'test');
+        $this->setAttribute('thing', $test);
+        if ($test instanceof Twig_TestCallableInterface || $test instanceof Twig_SimpleTest) {
+            $this->setAttribute('callable', $test->getCallable());
+        }
+        if ($test instanceof Twig_SimpleTest) {
+            $this->setAttribute('is_variadic', $test->isVariadic());
+        }
+
+        $this->compileCallable($compiler);
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Test/Constant.php b/vendor/twig/twig/lib/Twig/Node/Expression/Test/Constant.php
new file mode 100644
index 000000000..de55f5f55
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Test/Constant.php
@@ -0,0 +1,46 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2011 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Checks if a variable is the exact same value as a constant.
+ *
+ * <pre>
+ *  {% if post.status is constant('Post::PUBLISHED') %}
+ *    the status attribute is exactly the same as Post::PUBLISHED
+ *  {% endif %}
+ * </pre>
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Expression_Test_Constant extends Twig_Node_Expression_Test
+{
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->raw('(')
+            ->subcompile($this->getNode('node'))
+            ->raw(' === constant(')
+        ;
+
+        if ($this->getNode('arguments')->hasNode(1)) {
+            $compiler
+                ->raw('get_class(')
+                ->subcompile($this->getNode('arguments')->getNode(1))
+                ->raw(')."::".')
+            ;
+        }
+
+        $compiler
+            ->subcompile($this->getNode('arguments')->getNode(0))
+            ->raw('))')
+        ;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Test/Defined.php b/vendor/twig/twig/lib/Twig/Node/Expression/Test/Defined.php
new file mode 100644
index 000000000..3dc6ff592
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Test/Defined.php
@@ -0,0 +1,56 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2011 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Checks if a variable is defined in the current context.
+ *
+ * <pre>
+ * {# defined works with variable names and variable attributes #}
+ * {% if foo is defined %}
+ *     {# ... #}
+ * {% endif %}
+ * </pre>
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Expression_Test_Defined extends Twig_Node_Expression_Test
+{
+    public function __construct(Twig_NodeInterface $node, $name, Twig_NodeInterface $arguments = null, $lineno)
+    {
+        if ($node instanceof Twig_Node_Expression_Name) {
+            $node->setAttribute('is_defined_test', true);
+        } elseif ($node instanceof Twig_Node_Expression_GetAttr) {
+            $node->setAttribute('is_defined_test', true);
+
+            $this->changeIgnoreStrictCheck($node);
+        } elseif ($node instanceof Twig_Node_Expression_Constant || $node instanceof Twig_Node_Expression_Array) {
+            $node = new Twig_Node_Expression_Constant(true, $node->getLine());
+        } else {
+            throw new Twig_Error_Syntax('The "defined" test only works with simple variables.', $this->getLine());
+        }
+
+        parent::__construct($node, $name, $arguments, $lineno);
+    }
+
+    protected function changeIgnoreStrictCheck(Twig_Node_Expression_GetAttr $node)
+    {
+        $node->setAttribute('ignore_strict_check', true);
+
+        if ($node->getNode('node') instanceof Twig_Node_Expression_GetAttr) {
+            $this->changeIgnoreStrictCheck($node->getNode('node'));
+        }
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler->subcompile($this->getNode('node'));
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Test/Divisibleby.php b/vendor/twig/twig/lib/Twig/Node/Expression/Test/Divisibleby.php
new file mode 100644
index 000000000..d5bed234a
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Test/Divisibleby.php
@@ -0,0 +1,33 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2011 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Checks if a variable is divisible by a number.
+ *
+ * <pre>
+ *  {% if loop.index is divisible by(3) %}
+ * </pre>
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Expression_Test_Divisibleby extends Twig_Node_Expression_Test
+{
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->raw('(0 == ')
+            ->subcompile($this->getNode('node'))
+            ->raw(' % ')
+            ->subcompile($this->getNode('arguments')->getNode(0))
+            ->raw(')')
+        ;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Test/Even.php b/vendor/twig/twig/lib/Twig/Node/Expression/Test/Even.php
new file mode 100644
index 000000000..d7853e89c
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Test/Even.php
@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2011 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Checks if a number is even.
+ *
+ * <pre>
+ *  {{ var is even }}
+ * </pre>
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Expression_Test_Even extends Twig_Node_Expression_Test
+{
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->raw('(')
+            ->subcompile($this->getNode('node'))
+            ->raw(' % 2 == 0')
+            ->raw(')')
+        ;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Test/Null.php b/vendor/twig/twig/lib/Twig/Node/Expression/Test/Null.php
new file mode 100644
index 000000000..1c83825a0
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Test/Null.php
@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2011 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Checks that a variable is null.
+ *
+ * <pre>
+ *  {{ var is none }}
+ * </pre>
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Expression_Test_Null extends Twig_Node_Expression_Test
+{
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->raw('(null === ')
+            ->subcompile($this->getNode('node'))
+            ->raw(')')
+        ;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Test/Odd.php b/vendor/twig/twig/lib/Twig/Node/Expression/Test/Odd.php
new file mode 100644
index 000000000..421c19e84
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Test/Odd.php
@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2011 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Checks if a number is odd.
+ *
+ * <pre>
+ *  {{ var is odd }}
+ * </pre>
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Expression_Test_Odd extends Twig_Node_Expression_Test
+{
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->raw('(')
+            ->subcompile($this->getNode('node'))
+            ->raw(' % 2 == 1')
+            ->raw(')')
+        ;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Test/Sameas.php b/vendor/twig/twig/lib/Twig/Node/Expression/Test/Sameas.php
new file mode 100644
index 000000000..b48905ee4
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Test/Sameas.php
@@ -0,0 +1,29 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2011 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Checks if a variable is the same as another one (=== in PHP).
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Expression_Test_Sameas extends Twig_Node_Expression_Test
+{
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->raw('(')
+            ->subcompile($this->getNode('node'))
+            ->raw(' === ')
+            ->subcompile($this->getNode('arguments')->getNode(0))
+            ->raw(')')
+        ;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Unary.php b/vendor/twig/twig/lib/Twig/Node/Expression/Unary.php
new file mode 100644
index 000000000..1cf54c326
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Unary.php
@@ -0,0 +1,27 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+abstract class Twig_Node_Expression_Unary extends Twig_Node_Expression
+{
+    public function __construct(Twig_NodeInterface $node, $lineno)
+    {
+        parent::__construct(array('node' => $node), array(), $lineno);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler->raw(' ');
+        $this->operator($compiler);
+        $compiler->subcompile($this->getNode('node'));
+    }
+
+    abstract public function operator(Twig_Compiler $compiler);
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Unary/Neg.php b/vendor/twig/twig/lib/Twig/Node/Expression/Unary/Neg.php
new file mode 100644
index 000000000..2a3937ec3
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Unary/Neg.php
@@ -0,0 +1,18 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Unary_Neg extends Twig_Node_Expression_Unary
+{
+    public function operator(Twig_Compiler $compiler)
+    {
+        $compiler->raw('-');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Unary/Not.php b/vendor/twig/twig/lib/Twig/Node/Expression/Unary/Not.php
new file mode 100644
index 000000000..f94073cfa
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Unary/Not.php
@@ -0,0 +1,18 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Unary_Not extends Twig_Node_Expression_Unary
+{
+    public function operator(Twig_Compiler $compiler)
+    {
+        $compiler->raw('!');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Expression/Unary/Pos.php b/vendor/twig/twig/lib/Twig/Node/Expression/Unary/Pos.php
new file mode 100644
index 000000000..04edb52a6
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Expression/Unary/Pos.php
@@ -0,0 +1,18 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Node_Expression_Unary_Pos extends Twig_Node_Expression_Unary
+{
+    public function operator(Twig_Compiler $compiler)
+    {
+        $compiler->raw('+');
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Flush.php b/vendor/twig/twig/lib/Twig/Node/Flush.php
new file mode 100644
index 000000000..2af17a42b
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Flush.php
@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2011 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a flush node.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Flush extends Twig_Node
+{
+    public function __construct($lineno, $tag)
+    {
+        parent::__construct(array(), array(), $lineno, $tag);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->addDebugInfo($this)
+            ->write("flush();\n")
+        ;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/For.php b/vendor/twig/twig/lib/Twig/Node/For.php
new file mode 100644
index 000000000..2d450932c
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/For.php
@@ -0,0 +1,106 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a for node.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_For extends Twig_Node
+{
+    protected $loop;
+
+    public function __construct(Twig_Node_Expression_AssignName $keyTarget, Twig_Node_Expression_AssignName $valueTarget, Twig_Node_Expression $seq, Twig_Node_Expression $ifexpr = null, Twig_NodeInterface $body, Twig_NodeInterface $else = null, $lineno, $tag = null)
+    {
+        $body = new Twig_Node(array($body, $this->loop = new Twig_Node_ForLoop($lineno, $tag)));
+
+        if (null !== $ifexpr) {
+            $body = new Twig_Node_If(new Twig_Node(array($ifexpr, $body)), null, $lineno, $tag);
+        }
+
+        parent::__construct(array('key_target' => $keyTarget, 'value_target' => $valueTarget, 'seq' => $seq, 'body' => $body, 'else' => $else), array('with_loop' => true, 'ifexpr' => null !== $ifexpr), $lineno, $tag);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->addDebugInfo($this)
+            ->write("\$context['_parent'] = \$context;\n")
+            ->write("\$context['_seq'] = twig_ensure_traversable(")
+            ->subcompile($this->getNode('seq'))
+            ->raw(");\n")
+        ;
+
+        if (null !== $this->getNode('else')) {
+            $compiler->write("\$context['_iterated'] = false;\n");
+        }
+
+        if ($this->getAttribute('with_loop')) {
+            $compiler
+                ->write("\$context['loop'] = array(\n")
+                ->write("  'parent' => \$context['_parent'],\n")
+                ->write("  'index0' => 0,\n")
+                ->write("  'index'  => 1,\n")
+                ->write("  'first'  => true,\n")
+                ->write(");\n")
+            ;
+
+            if (!$this->getAttribute('ifexpr')) {
+                $compiler
+                    ->write("if (is_array(\$context['_seq']) || (is_object(\$context['_seq']) && \$context['_seq'] instanceof Countable)) {\n")
+                    ->indent()
+                    ->write("\$length = count(\$context['_seq']);\n")
+                    ->write("\$context['loop']['revindex0'] = \$length - 1;\n")
+                    ->write("\$context['loop']['revindex'] = \$length;\n")
+                    ->write("\$context['loop']['length'] = \$length;\n")
+                    ->write("\$context['loop']['last'] = 1 === \$length;\n")
+                    ->outdent()
+                    ->write("}\n")
+                ;
+            }
+        }
+
+        $this->loop->setAttribute('else', null !== $this->getNode('else'));
+        $this->loop->setAttribute('with_loop', $this->getAttribute('with_loop'));
+        $this->loop->setAttribute('ifexpr', $this->getAttribute('ifexpr'));
+
+        $compiler
+            ->write("foreach (\$context['_seq'] as ")
+            ->subcompile($this->getNode('key_target'))
+            ->raw(' => ')
+            ->subcompile($this->getNode('value_target'))
+            ->raw(") {\n")
+            ->indent()
+            ->subcompile($this->getNode('body'))
+            ->outdent()
+            ->write("}\n")
+        ;
+
+        if (null !== $this->getNode('else')) {
+            $compiler
+                ->write("if (!\$context['_iterated']) {\n")
+                ->indent()
+                ->subcompile($this->getNode('else'))
+                ->outdent()
+                ->write("}\n")
+            ;
+        }
+
+        $compiler->write("\$_parent = \$context['_parent'];\n");
+
+        // remove some "private" loop variables (needed for nested loops)
+        $compiler->write('unset($context[\'_seq\'], $context[\'_iterated\'], $context[\''.$this->getNode('key_target')->getAttribute('name').'\'], $context[\''.$this->getNode('value_target')->getAttribute('name').'\'], $context[\'_parent\'], $context[\'loop\']);'."\n");
+
+        // keep the values set in the inner context for variables defined in the outer context
+        $compiler->write("\$context = array_intersect_key(\$context, \$_parent) + \$_parent;\n");
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/ForLoop.php b/vendor/twig/twig/lib/Twig/Node/ForLoop.php
new file mode 100644
index 000000000..2554d4807
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/ForLoop.php
@@ -0,0 +1,50 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2011 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Internal node used by the for node.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_ForLoop extends Twig_Node
+{
+    public function __construct($lineno, $tag = null)
+    {
+        parent::__construct(array(), array('with_loop' => false, 'ifexpr' => false, 'else' => false), $lineno, $tag);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        if ($this->getAttribute('else')) {
+            $compiler->write("\$context['_iterated'] = true;\n");
+        }
+
+        if ($this->getAttribute('with_loop')) {
+            $compiler
+                ->write("++\$context['loop']['index0'];\n")
+                ->write("++\$context['loop']['index'];\n")
+                ->write("\$context['loop']['first'] = false;\n")
+            ;
+
+            if (!$this->getAttribute('ifexpr')) {
+                $compiler
+                    ->write("if (isset(\$context['loop']['length'])) {\n")
+                    ->indent()
+                    ->write("--\$context['loop']['revindex0'];\n")
+                    ->write("--\$context['loop']['revindex'];\n")
+                    ->write("\$context['loop']['last'] = 0 === \$context['loop']['revindex0'];\n")
+                    ->outdent()
+                    ->write("}\n")
+                ;
+            }
+        }
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/If.php b/vendor/twig/twig/lib/Twig/Node/If.php
new file mode 100644
index 000000000..caff93682
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/If.php
@@ -0,0 +1,61 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents an if node.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_If extends Twig_Node
+{
+    public function __construct(Twig_NodeInterface $tests, Twig_NodeInterface $else = null, $lineno, $tag = null)
+    {
+        parent::__construct(array('tests' => $tests, 'else' => $else), array(), $lineno, $tag);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler->addDebugInfo($this);
+        for ($i = 0, $count = count($this->getNode('tests')); $i < $count; $i += 2) {
+            if ($i > 0) {
+                $compiler
+                    ->outdent()
+                    ->write('} elseif (')
+                ;
+            } else {
+                $compiler
+                    ->write('if (')
+                ;
+            }
+
+            $compiler
+                ->subcompile($this->getNode('tests')->getNode($i))
+                ->raw(") {\n")
+                ->indent()
+                ->subcompile($this->getNode('tests')->getNode($i + 1))
+            ;
+        }
+
+        if ($this->hasNode('else') && null !== $this->getNode('else')) {
+            $compiler
+                ->outdent()
+                ->write("} else {\n")
+                ->indent()
+                ->subcompile($this->getNode('else'))
+            ;
+        }
+
+        $compiler
+            ->outdent()
+            ->write("}\n");
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Import.php b/vendor/twig/twig/lib/Twig/Node/Import.php
new file mode 100644
index 000000000..df37af371
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Import.php
@@ -0,0 +1,49 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents an import node.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Import extends Twig_Node
+{
+    public function __construct(Twig_Node_Expression $expr, Twig_Node_Expression $var, $lineno, $tag = null)
+    {
+        parent::__construct(array('expr' => $expr, 'var' => $var), array(), $lineno, $tag);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->addDebugInfo($this)
+            ->write('')
+            ->subcompile($this->getNode('var'))
+            ->raw(' = ')
+        ;
+
+        if ($this->getNode('expr') instanceof Twig_Node_Expression_Name && '_self' === $this->getNode('expr')->getAttribute('name')) {
+            $compiler->raw('$this');
+        } else {
+            $compiler
+                ->raw('$this->loadTemplate(')
+                ->subcompile($this->getNode('expr'))
+                ->raw(', ')
+                ->repr($compiler->getFilename())
+                ->raw(', ')
+                ->repr($this->getLine())
+                ->raw(')')
+            ;
+        }
+
+        $compiler->raw(";\n");
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Include.php b/vendor/twig/twig/lib/Twig/Node/Include.php
new file mode 100644
index 000000000..9952f7316
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Include.php
@@ -0,0 +1,83 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents an include node.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Include extends Twig_Node implements Twig_NodeOutputInterface
+{
+    public function __construct(Twig_Node_Expression $expr, Twig_Node_Expression $variables = null, $only = false, $ignoreMissing = false, $lineno, $tag = null)
+    {
+        parent::__construct(array('expr' => $expr, 'variables' => $variables), array('only' => (bool) $only, 'ignore_missing' => (bool) $ignoreMissing), $lineno, $tag);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler->addDebugInfo($this);
+
+        if ($this->getAttribute('ignore_missing')) {
+            $compiler
+                ->write("try {\n")
+                ->indent()
+            ;
+        }
+
+        $this->addGetTemplate($compiler);
+
+        $compiler->raw('->display(');
+
+        $this->addTemplateArguments($compiler);
+
+        $compiler->raw(");\n");
+
+        if ($this->getAttribute('ignore_missing')) {
+            $compiler
+                ->outdent()
+                ->write("} catch (Twig_Error_Loader \$e) {\n")
+                ->indent()
+                ->write("// ignore missing template\n")
+                ->outdent()
+                ->write("}\n\n")
+            ;
+        }
+    }
+
+    protected function addGetTemplate(Twig_Compiler $compiler)
+    {
+        $compiler
+             ->write('$this->loadTemplate(')
+             ->subcompile($this->getNode('expr'))
+             ->raw(', ')
+             ->repr($compiler->getFilename())
+             ->raw(', ')
+             ->repr($this->getLine())
+             ->raw(')')
+         ;
+    }
+
+    protected function addTemplateArguments(Twig_Compiler $compiler)
+    {
+        if (null === $this->getNode('variables')) {
+            $compiler->raw(false === $this->getAttribute('only') ? '$context' : 'array()');
+        } elseif (false === $this->getAttribute('only')) {
+            $compiler
+                ->raw('array_merge($context, ')
+                ->subcompile($this->getNode('variables'))
+                ->raw(')')
+            ;
+        } else {
+            $compiler->subcompile($this->getNode('variables'));
+        }
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Macro.php b/vendor/twig/twig/lib/Twig/Node/Macro.php
new file mode 100644
index 000000000..932e795f0
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Macro.php
@@ -0,0 +1,118 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a macro node.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Macro extends Twig_Node
+{
+    const VARARGS_NAME = 'varargs';
+
+    public function __construct($name, Twig_NodeInterface $body, Twig_NodeInterface $arguments, $lineno, $tag = null)
+    {
+        foreach ($arguments as $argumentName => $argument) {
+            if (self::VARARGS_NAME === $argumentName) {
+                throw new Twig_Error_Syntax(sprintf('The argument "%s" in macro "%s" cannot be defined because the variable "%s" is reserved for arbitrary arguments.', self::VARARGS_NAME, $name, self::VARARGS_NAME), $argument->getLine());
+            }
+        }
+
+        parent::__construct(array('body' => $body, 'arguments' => $arguments), array('name' => $name), $lineno, $tag);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->addDebugInfo($this)
+            ->write(sprintf('public function get%s(', $this->getAttribute('name')))
+        ;
+
+        $count = count($this->getNode('arguments'));
+        $pos = 0;
+        foreach ($this->getNode('arguments') as $name => $default) {
+            $compiler
+                ->raw('$__'.$name.'__ = ')
+                ->subcompile($default)
+            ;
+
+            if (++$pos < $count) {
+                $compiler->raw(', ');
+            }
+        }
+
+        if (PHP_VERSION_ID >= 50600) {
+            if ($count) {
+                $compiler->raw(', ');
+            }
+
+            $compiler->raw('...$__varargs__');
+        }
+
+        $compiler
+            ->raw(")\n")
+            ->write("{\n")
+            ->indent()
+        ;
+
+        $compiler
+            ->write("\$context = \$this->env->mergeGlobals(array(\n")
+            ->indent()
+        ;
+
+        foreach ($this->getNode('arguments') as $name => $default) {
+            $compiler
+                ->addIndentation()
+                ->string($name)
+                ->raw(' => $__'.$name.'__')
+                ->raw(",\n")
+            ;
+        }
+
+        $compiler
+            ->addIndentation()
+            ->string(self::VARARGS_NAME)
+            ->raw(' => ')
+        ;
+
+        if (PHP_VERSION_ID >= 50600) {
+            $compiler->raw("\$__varargs__,\n");
+        } else {
+            $compiler
+                ->raw('func_num_args() > ')
+                ->repr($count)
+                ->raw(' ? array_slice(func_get_args(), ')
+                ->repr($count)
+                ->raw(") : array(),\n")
+            ;
+        }
+
+        $compiler
+            ->outdent()
+            ->write("));\n\n")
+            ->write("\$blocks = array();\n\n")
+            ->write("ob_start();\n")
+            ->write("try {\n")
+            ->indent()
+            ->subcompile($this->getNode('body'))
+            ->outdent()
+            ->write("} catch (Exception \$e) {\n")
+            ->indent()
+            ->write("ob_end_clean();\n\n")
+            ->write("throw \$e;\n")
+            ->outdent()
+            ->write("}\n\n")
+            ->write("return ('' === \$tmp = ob_get_clean()) ? '' : new Twig_Markup(\$tmp, \$this->env->getCharset());\n")
+            ->outdent()
+            ->write("}\n\n")
+        ;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Module.php b/vendor/twig/twig/lib/Twig/Node/Module.php
new file mode 100644
index 000000000..01161d3e8
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Module.php
@@ -0,0 +1,403 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a module node.
+ *
+ * Consider this class as being final. If you need to customize the behavior of
+ * the generated class, consider adding nodes to the following nodes: display_start,
+ * display_end, constructor_start, constructor_end, and class_end.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Module extends Twig_Node
+{
+    public function __construct(Twig_NodeInterface $body, Twig_Node_Expression $parent = null, Twig_NodeInterface $blocks, Twig_NodeInterface $macros, Twig_NodeInterface $traits, $embeddedTemplates, $filename)
+    {
+        // embedded templates are set as attributes so that they are only visited once by the visitors
+        parent::__construct(array(
+            'parent' => $parent,
+            'body' => $body,
+            'blocks' => $blocks,
+            'macros' => $macros,
+            'traits' => $traits,
+            'display_start' => new Twig_Node(),
+            'display_end' => new Twig_Node(),
+            'constructor_start' => new Twig_Node(),
+            'constructor_end' => new Twig_Node(),
+            'class_end' => new Twig_Node(),
+        ), array(
+            'filename' => $filename,
+            'index' => null,
+            'embedded_templates' => $embeddedTemplates,
+        ), 1);
+    }
+
+    public function setIndex($index)
+    {
+        $this->setAttribute('index', $index);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $this->compileTemplate($compiler);
+
+        foreach ($this->getAttribute('embedded_templates') as $template) {
+            $compiler->subcompile($template);
+        }
+    }
+
+    protected function compileTemplate(Twig_Compiler $compiler)
+    {
+        if (!$this->getAttribute('index')) {
+            $compiler->write('<?php');
+        }
+
+        $this->compileClassHeader($compiler);
+
+        if (
+            count($this->getNode('blocks'))
+            || count($this->getNode('traits'))
+            || null === $this->getNode('parent')
+            || $this->getNode('parent') instanceof Twig_Node_Expression_Constant
+            || count($this->getNode('constructor_start'))
+            || count($this->getNode('constructor_end'))
+        ) {
+            $this->compileConstructor($compiler);
+        }
+
+        $this->compileGetParent($compiler);
+
+        $this->compileDisplay($compiler);
+
+        $compiler->subcompile($this->getNode('blocks'));
+
+        $this->compileMacros($compiler);
+
+        $this->compileGetTemplateName($compiler);
+
+        $this->compileIsTraitable($compiler);
+
+        $this->compileDebugInfo($compiler);
+
+        $this->compileClassFooter($compiler);
+    }
+
+    protected function compileGetParent(Twig_Compiler $compiler)
+    {
+        if (null === $parent = $this->getNode('parent')) {
+            return;
+        }
+
+        $compiler
+            ->write("protected function doGetParent(array \$context)\n", "{\n")
+            ->indent()
+            ->addDebugInfo($parent)
+            ->write('return ')
+        ;
+
+        if ($parent instanceof Twig_Node_Expression_Constant) {
+            $compiler->subcompile($parent);
+        } else {
+            $compiler
+                ->raw('$this->loadTemplate(')
+                ->subcompile($parent)
+                ->raw(', ')
+                ->repr($compiler->getFilename())
+                ->raw(', ')
+                ->repr($this->getNode('parent')->getLine())
+                ->raw(')')
+            ;
+        }
+
+        $compiler
+            ->raw(";\n")
+            ->outdent()
+            ->write("}\n\n")
+        ;
+    }
+
+    protected function compileClassHeader(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->write("\n\n")
+            // if the filename contains */, add a blank to avoid a PHP parse error
+            ->write('/* '.str_replace('*/', '* /', $this->getAttribute('filename'))." */\n")
+            ->write('class '.$compiler->getEnvironment()->getTemplateClass($this->getAttribute('filename'), $this->getAttribute('index')))
+            ->raw(sprintf(" extends %s\n", $compiler->getEnvironment()->getBaseTemplateClass()))
+            ->write("{\n")
+            ->indent()
+        ;
+    }
+
+    protected function compileConstructor(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->write("public function __construct(Twig_Environment \$env)\n", "{\n")
+            ->indent()
+            ->subcompile($this->getNode('constructor_start'))
+            ->write("parent::__construct(\$env);\n\n")
+        ;
+
+        // parent
+        if (null === $parent = $this->getNode('parent')) {
+            $compiler->write("\$this->parent = false;\n\n");
+        } elseif ($parent instanceof Twig_Node_Expression_Constant) {
+            $compiler
+                ->addDebugInfo($parent)
+                ->write('$this->parent = $this->loadTemplate(')
+                ->subcompile($parent)
+                ->raw(', ')
+                ->repr($compiler->getFilename())
+                ->raw(', ')
+                ->repr($this->getNode('parent')->getLine())
+                ->raw(");\n")
+            ;
+        }
+
+        $countTraits = count($this->getNode('traits'));
+        if ($countTraits) {
+            // traits
+            foreach ($this->getNode('traits') as $i => $trait) {
+                $this->compileLoadTemplate($compiler, $trait->getNode('template'), sprintf('$_trait_%s', $i));
+
+                $compiler
+                    ->addDebugInfo($trait->getNode('template'))
+                    ->write(sprintf("if (!\$_trait_%s->isTraitable()) {\n", $i))
+                    ->indent()
+                    ->write("throw new Twig_Error_Runtime('Template \"'.")
+                    ->subcompile($trait->getNode('template'))
+                    ->raw(".'\" cannot be used as a trait.');\n")
+                    ->outdent()
+                    ->write("}\n")
+                    ->write(sprintf("\$_trait_%s_blocks = \$_trait_%s->getBlocks();\n\n", $i, $i))
+                ;
+
+                foreach ($trait->getNode('targets') as $key => $value) {
+                    $compiler
+                        ->write(sprintf('if (!isset($_trait_%s_blocks[', $i))
+                        ->string($key)
+                        ->raw("])) {\n")
+                        ->indent()
+                        ->write("throw new Twig_Error_Runtime(sprintf('Block ")
+                        ->string($key)
+                        ->raw(' is not defined in trait ')
+                        ->subcompile($trait->getNode('template'))
+                        ->raw(".'));\n")
+                        ->outdent()
+                        ->write("}\n\n")
+
+                        ->write(sprintf('$_trait_%s_blocks[', $i))
+                        ->subcompile($value)
+                        ->raw(sprintf('] = $_trait_%s_blocks[', $i))
+                        ->string($key)
+                        ->raw(sprintf(']; unset($_trait_%s_blocks[', $i))
+                        ->string($key)
+                        ->raw("]);\n\n")
+                    ;
+                }
+            }
+
+            if ($countTraits > 1) {
+                $compiler
+                    ->write("\$this->traits = array_merge(\n")
+                    ->indent()
+                ;
+
+                for ($i = 0; $i < $countTraits; ++$i) {
+                    $compiler
+                        ->write(sprintf('$_trait_%s_blocks'.($i == $countTraits - 1 ? '' : ',')."\n", $i))
+                    ;
+                }
+
+                $compiler
+                    ->outdent()
+                    ->write(");\n\n")
+                ;
+            } else {
+                $compiler
+                    ->write("\$this->traits = \$_trait_0_blocks;\n\n")
+                ;
+            }
+
+            $compiler
+                ->write("\$this->blocks = array_merge(\n")
+                ->indent()
+                ->write("\$this->traits,\n")
+                ->write("array(\n")
+            ;
+        } else {
+            $compiler
+                ->write("\$this->blocks = array(\n")
+            ;
+        }
+
+        // blocks
+        $compiler
+            ->indent()
+        ;
+
+        foreach ($this->getNode('blocks') as $name => $node) {
+            $compiler
+                ->write(sprintf("'%s' => array(\$this, 'block_%s'),\n", $name, $name))
+            ;
+        }
+
+        if ($countTraits) {
+            $compiler
+                ->outdent()
+                ->write(")\n")
+            ;
+        }
+
+        $compiler
+            ->outdent()
+            ->write(");\n")
+            ->outdent()
+            ->subcompile($this->getNode('constructor_end'))
+            ->write("}\n\n")
+        ;
+    }
+
+    protected function compileDisplay(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->write("protected function doDisplay(array \$context, array \$blocks = array())\n", "{\n")
+            ->indent()
+            ->subcompile($this->getNode('display_start'))
+            ->subcompile($this->getNode('body'))
+        ;
+
+        if (null !== $parent = $this->getNode('parent')) {
+            $compiler->addDebugInfo($parent);
+            if ($parent instanceof Twig_Node_Expression_Constant) {
+                $compiler->write('$this->parent');
+            } else {
+                $compiler->write('$this->getParent($context)');
+            }
+            $compiler->raw("->display(\$context, array_merge(\$this->blocks, \$blocks));\n");
+        }
+
+        $compiler
+            ->subcompile($this->getNode('display_end'))
+            ->outdent()
+            ->write("}\n\n")
+        ;
+    }
+
+    protected function compileClassFooter(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->subcompile($this->getNode('class_end'))
+            ->outdent()
+            ->write("}\n")
+        ;
+    }
+
+    protected function compileMacros(Twig_Compiler $compiler)
+    {
+        $compiler->subcompile($this->getNode('macros'));
+    }
+
+    protected function compileGetTemplateName(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->write("public function getTemplateName()\n", "{\n")
+            ->indent()
+            ->write('return ')
+            ->repr($this->getAttribute('filename'))
+            ->raw(";\n")
+            ->outdent()
+            ->write("}\n\n")
+        ;
+    }
+
+    protected function compileIsTraitable(Twig_Compiler $compiler)
+    {
+        // A template can be used as a trait if:
+        //   * it has no parent
+        //   * it has no macros
+        //   * it has no body
+        //
+        // Put another way, a template can be used as a trait if it
+        // only contains blocks and use statements.
+        $traitable = null === $this->getNode('parent') && 0 === count($this->getNode('macros'));
+        if ($traitable) {
+            if ($this->getNode('body') instanceof Twig_Node_Body) {
+                $nodes = $this->getNode('body')->getNode(0);
+            } else {
+                $nodes = $this->getNode('body');
+            }
+
+            if (!count($nodes)) {
+                $nodes = new Twig_Node(array($nodes));
+            }
+
+            foreach ($nodes as $node) {
+                if (!count($node)) {
+                    continue;
+                }
+
+                if ($node instanceof Twig_Node_Text && ctype_space($node->getAttribute('data'))) {
+                    continue;
+                }
+
+                if ($node instanceof Twig_Node_BlockReference) {
+                    continue;
+                }
+
+                $traitable = false;
+                break;
+            }
+        }
+
+        if ($traitable) {
+            return;
+        }
+
+        $compiler
+            ->write("public function isTraitable()\n", "{\n")
+            ->indent()
+            ->write(sprintf("return %s;\n", $traitable ? 'true' : 'false'))
+            ->outdent()
+            ->write("}\n\n")
+        ;
+    }
+
+    protected function compileDebugInfo(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->write("public function getDebugInfo()\n", "{\n")
+            ->indent()
+            ->write(sprintf("return %s;\n", str_replace("\n", '', var_export(array_reverse($compiler->getDebugInfo(), true), true))))
+            ->outdent()
+            ->write("}\n")
+        ;
+    }
+
+    protected function compileLoadTemplate(Twig_Compiler $compiler, $node, $var)
+    {
+        if ($node instanceof Twig_Node_Expression_Constant) {
+            $compiler
+                ->write(sprintf('%s = $this->loadTemplate(', $var))
+                ->subcompile($node)
+                ->raw(', ')
+                ->repr($compiler->getFilename())
+                ->raw(', ')
+                ->repr($node->getLine())
+                ->raw(");\n")
+            ;
+        } else {
+            throw new LogicException('Trait templates can only be constant nodes');
+        }
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Print.php b/vendor/twig/twig/lib/Twig/Node/Print.php
new file mode 100644
index 000000000..7b69ee811
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Print.php
@@ -0,0 +1,34 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a node that outputs an expression.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Print extends Twig_Node implements Twig_NodeOutputInterface
+{
+    public function __construct(Twig_Node_Expression $expr, $lineno, $tag = null)
+    {
+        parent::__construct(array('expr' => $expr), array(), $lineno, $tag);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->addDebugInfo($this)
+            ->write('echo ')
+            ->subcompile($this->getNode('expr'))
+            ->raw(";\n")
+        ;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Sandbox.php b/vendor/twig/twig/lib/Twig/Node/Sandbox.php
new file mode 100644
index 000000000..cd705e258
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Sandbox.php
@@ -0,0 +1,42 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a sandbox node.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Sandbox extends Twig_Node
+{
+    public function __construct(Twig_NodeInterface $body, $lineno, $tag = null)
+    {
+        parent::__construct(array('body' => $body), array(), $lineno, $tag);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->addDebugInfo($this)
+            ->write("\$sandbox = \$this->env->getExtension('sandbox');\n")
+            ->write("if (!\$alreadySandboxed = \$sandbox->isSandboxed()) {\n")
+            ->indent()
+            ->write("\$sandbox->enableSandbox();\n")
+            ->outdent()
+            ->write("}\n")
+            ->subcompile($this->getNode('body'))
+            ->write("if (!\$alreadySandboxed) {\n")
+            ->indent()
+            ->write("\$sandbox->disableSandbox();\n")
+            ->outdent()
+            ->write("}\n")
+        ;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/SandboxedPrint.php b/vendor/twig/twig/lib/Twig/Node/SandboxedPrint.php
new file mode 100644
index 000000000..148dd2bb4
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/SandboxedPrint.php
@@ -0,0 +1,51 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Twig_Node_SandboxedPrint adds a check for the __toString() method
+ * when the variable is an object and the sandbox is activated.
+ *
+ * When there is a simple Print statement, like {{ article }},
+ * and if the sandbox is enabled, we need to check that the __toString()
+ * method is allowed if 'article' is an object.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_SandboxedPrint extends Twig_Node_Print
+{
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->addDebugInfo($this)
+            ->write('echo $this->env->getExtension(\'sandbox\')->ensureToStringAllowed(')
+            ->subcompile($this->getNode('expr'))
+            ->raw(");\n")
+        ;
+    }
+
+    /**
+     * Removes node filters.
+     *
+     * This is mostly needed when another visitor adds filters (like the escaper one).
+     *
+     * @param Twig_Node $node A Node
+     *
+     * @return Twig_Node
+     */
+    protected function removeNodeFilter($node)
+    {
+        if ($node instanceof Twig_Node_Expression_Filter) {
+            return $this->removeNodeFilter($node->getNode('node'));
+        }
+
+        return $node;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Set.php b/vendor/twig/twig/lib/Twig/Node/Set.php
new file mode 100644
index 000000000..e5a660375
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Set.php
@@ -0,0 +1,96 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a set node.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Set extends Twig_Node
+{
+    public function __construct($capture, Twig_NodeInterface $names, Twig_NodeInterface $values, $lineno, $tag = null)
+    {
+        parent::__construct(array('names' => $names, 'values' => $values), array('capture' => $capture, 'safe' => false), $lineno, $tag);
+
+        /*
+         * Optimizes the node when capture is used for a large block of text.
+         *
+         * {% set foo %}foo{% endset %} is compiled to $context['foo'] = new Twig_Markup("foo");
+         */
+        if ($this->getAttribute('capture')) {
+            $this->setAttribute('safe', true);
+
+            $values = $this->getNode('values');
+            if ($values instanceof Twig_Node_Text) {
+                $this->setNode('values', new Twig_Node_Expression_Constant($values->getAttribute('data'), $values->getLine()));
+                $this->setAttribute('capture', false);
+            }
+        }
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler->addDebugInfo($this);
+
+        if (count($this->getNode('names')) > 1) {
+            $compiler->write('list(');
+            foreach ($this->getNode('names') as $idx => $node) {
+                if ($idx) {
+                    $compiler->raw(', ');
+                }
+
+                $compiler->subcompile($node);
+            }
+            $compiler->raw(')');
+        } else {
+            if ($this->getAttribute('capture')) {
+                $compiler
+                    ->write("ob_start();\n")
+                    ->subcompile($this->getNode('values'))
+                ;
+            }
+
+            $compiler->subcompile($this->getNode('names'), false);
+
+            if ($this->getAttribute('capture')) {
+                $compiler->raw(" = ('' === \$tmp = ob_get_clean()) ? '' : new Twig_Markup(\$tmp, \$this->env->getCharset())");
+            }
+        }
+
+        if (!$this->getAttribute('capture')) {
+            $compiler->raw(' = ');
+
+            if (count($this->getNode('names')) > 1) {
+                $compiler->write('array(');
+                foreach ($this->getNode('values') as $idx => $value) {
+                    if ($idx) {
+                        $compiler->raw(', ');
+                    }
+
+                    $compiler->subcompile($value);
+                }
+                $compiler->raw(')');
+            } else {
+                if ($this->getAttribute('safe')) {
+                    $compiler
+                        ->raw("('' === \$tmp = ")
+                        ->subcompile($this->getNode('values'))
+                        ->raw(") ? '' : new Twig_Markup(\$tmp, \$this->env->getCharset())")
+                    ;
+                } else {
+                    $compiler->subcompile($this->getNode('values'));
+                }
+            }
+        }
+
+        $compiler->raw(";\n");
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/SetTemp.php b/vendor/twig/twig/lib/Twig/Node/SetTemp.php
new file mode 100644
index 000000000..3bdd1cb74
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/SetTemp.php
@@ -0,0 +1,35 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2011 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Node_SetTemp extends Twig_Node
+{
+    public function __construct($name, $lineno)
+    {
+        parent::__construct(array(), array('name' => $name), $lineno);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $name = $this->getAttribute('name');
+        $compiler
+            ->addDebugInfo($this)
+            ->write('if (isset($context[')
+            ->string($name)
+            ->raw('])) { $_')
+            ->raw($name)
+            ->raw('_ = $context[')
+            ->repr($name)
+            ->raw(']; } else { $_')
+            ->raw($name)
+            ->raw("_ = null; }\n")
+        ;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Spaceless.php b/vendor/twig/twig/lib/Twig/Node/Spaceless.php
new file mode 100644
index 000000000..486e461a6
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Spaceless.php
@@ -0,0 +1,35 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a spaceless node.
+ *
+ * It removes spaces between HTML tags.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Spaceless extends Twig_Node
+{
+    public function __construct(Twig_NodeInterface $body, $lineno, $tag = 'spaceless')
+    {
+        parent::__construct(array('body' => $body), array(), $lineno, $tag);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->addDebugInfo($this)
+            ->write("ob_start();\n")
+            ->subcompile($this->getNode('body'))
+            ->write("echo trim(preg_replace('/>\s+</', '><', ob_get_clean()));\n")
+        ;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Node/Text.php b/vendor/twig/twig/lib/Twig/Node/Text.php
new file mode 100644
index 000000000..39879bb2c
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Node/Text.php
@@ -0,0 +1,34 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a text node.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Node_Text extends Twig_Node implements Twig_NodeOutputInterface
+{
+    public function __construct($data, $lineno)
+    {
+        parent::__construct(array(), array('data' => $data), $lineno);
+    }
+
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->addDebugInfo($this)
+            ->write('echo ')
+            ->string($this->getAttribute('data'))
+            ->raw(";\n")
+        ;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/NodeInterface.php b/vendor/twig/twig/lib/Twig/NodeInterface.php
new file mode 100644
index 000000000..8077349b3
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/NodeInterface.php
@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a node in the AST.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since 1.12 (to be removed in 3.0)
+ */
+interface Twig_NodeInterface extends Countable, IteratorAggregate
+{
+    /**
+     * Compiles the node to PHP.
+     *
+     * @param Twig_Compiler $compiler A Twig_Compiler instance
+     */
+    public function compile(Twig_Compiler $compiler);
+
+    public function getLine();
+
+    public function getNodeTag();
+}
diff --git a/vendor/twig/twig/lib/Twig/NodeOutputInterface.php b/vendor/twig/twig/lib/Twig/NodeOutputInterface.php
new file mode 100644
index 000000000..22172c09d
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/NodeOutputInterface.php
@@ -0,0 +1,19 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a displayable node in the AST.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface Twig_NodeOutputInterface
+{
+}
diff --git a/vendor/twig/twig/lib/Twig/NodeTraverser.php b/vendor/twig/twig/lib/Twig/NodeTraverser.php
new file mode 100644
index 000000000..00f7b54b6
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/NodeTraverser.php
@@ -0,0 +1,89 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Twig_NodeTraverser is a node traverser.
+ *
+ * It visits all nodes and their children and calls the given visitor for each.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_NodeTraverser
+{
+    protected $env;
+    protected $visitors = array();
+
+    /**
+     * Constructor.
+     *
+     * @param Twig_Environment            $env      A Twig_Environment instance
+     * @param Twig_NodeVisitorInterface[] $visitors An array of Twig_NodeVisitorInterface instances
+     */
+    public function __construct(Twig_Environment $env, array $visitors = array())
+    {
+        $this->env = $env;
+        foreach ($visitors as $visitor) {
+            $this->addVisitor($visitor);
+        }
+    }
+
+    /**
+     * Adds a visitor.
+     *
+     * @param Twig_NodeVisitorInterface $visitor A Twig_NodeVisitorInterface instance
+     */
+    public function addVisitor(Twig_NodeVisitorInterface $visitor)
+    {
+        if (!isset($this->visitors[$visitor->getPriority()])) {
+            $this->visitors[$visitor->getPriority()] = array();
+        }
+
+        $this->visitors[$visitor->getPriority()][] = $visitor;
+    }
+
+    /**
+     * Traverses a node and calls the registered visitors.
+     *
+     * @param Twig_NodeInterface $node A Twig_NodeInterface instance
+     *
+     * @return Twig_NodeInterface
+     */
+    public function traverse(Twig_NodeInterface $node)
+    {
+        ksort($this->visitors);
+        foreach ($this->visitors as $visitors) {
+            foreach ($visitors as $visitor) {
+                $node = $this->traverseForVisitor($visitor, $node);
+            }
+        }
+
+        return $node;
+    }
+
+    protected function traverseForVisitor(Twig_NodeVisitorInterface $visitor, Twig_NodeInterface $node = null)
+    {
+        if (null === $node) {
+            return;
+        }
+
+        $node = $visitor->enterNode($node, $this->env);
+
+        foreach ($node as $k => $n) {
+            if (false !== $n = $this->traverseForVisitor($visitor, $n)) {
+                $node->setNode($k, $n);
+            } else {
+                $node->removeNode($k);
+            }
+        }
+
+        return $visitor->leaveNode($node, $this->env);
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/NodeVisitor/Escaper.php b/vendor/twig/twig/lib/Twig/NodeVisitor/Escaper.php
new file mode 100644
index 000000000..5c9497774
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/NodeVisitor/Escaper.php
@@ -0,0 +1,157 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Twig_NodeVisitor_Escaper implements output escaping.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_NodeVisitor_Escaper extends Twig_BaseNodeVisitor
+{
+    protected $statusStack = array();
+    protected $blocks = array();
+    protected $safeAnalysis;
+    protected $traverser;
+    protected $defaultStrategy = false;
+    protected $safeVars = array();
+
+    public function __construct()
+    {
+        $this->safeAnalysis = new Twig_NodeVisitor_SafeAnalysis();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doEnterNode(Twig_Node $node, Twig_Environment $env)
+    {
+        if ($node instanceof Twig_Node_Module) {
+            if ($env->hasExtension('escaper') && $defaultStrategy = $env->getExtension('escaper')->getDefaultStrategy($node->getAttribute('filename'))) {
+                $this->defaultStrategy = $defaultStrategy;
+            }
+            $this->safeVars = array();
+        } elseif ($node instanceof Twig_Node_AutoEscape) {
+            $this->statusStack[] = $node->getAttribute('value');
+        } elseif ($node instanceof Twig_Node_Block) {
+            $this->statusStack[] = isset($this->blocks[$node->getAttribute('name')]) ? $this->blocks[$node->getAttribute('name')] : $this->needEscaping($env);
+        } elseif ($node instanceof Twig_Node_Import) {
+            $this->safeVars[] = $node->getNode('var')->getAttribute('name');
+        }
+
+        return $node;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doLeaveNode(Twig_Node $node, Twig_Environment $env)
+    {
+        if ($node instanceof Twig_Node_Module) {
+            $this->defaultStrategy = false;
+            $this->safeVars = array();
+        } elseif ($node instanceof Twig_Node_Expression_Filter) {
+            return $this->preEscapeFilterNode($node, $env);
+        } elseif ($node instanceof Twig_Node_Print) {
+            return $this->escapePrintNode($node, $env, $this->needEscaping($env));
+        }
+
+        if ($node instanceof Twig_Node_AutoEscape || $node instanceof Twig_Node_Block) {
+            array_pop($this->statusStack);
+        } elseif ($node instanceof Twig_Node_BlockReference) {
+            $this->blocks[$node->getAttribute('name')] = $this->needEscaping($env);
+        }
+
+        return $node;
+    }
+
+    protected function escapePrintNode(Twig_Node_Print $node, Twig_Environment $env, $type)
+    {
+        if (false === $type) {
+            return $node;
+        }
+
+        $expression = $node->getNode('expr');
+
+        if ($this->isSafeFor($type, $expression, $env)) {
+            return $node;
+        }
+
+        $class = get_class($node);
+
+        return new $class(
+            $this->getEscaperFilter($type, $expression),
+            $node->getLine()
+        );
+    }
+
+    protected function preEscapeFilterNode(Twig_Node_Expression_Filter $filter, Twig_Environment $env)
+    {
+        $name = $filter->getNode('filter')->getAttribute('value');
+
+        $type = $env->getFilter($name)->getPreEscape();
+        if (null === $type) {
+            return $filter;
+        }
+
+        $node = $filter->getNode('node');
+        if ($this->isSafeFor($type, $node, $env)) {
+            return $filter;
+        }
+
+        $filter->setNode('node', $this->getEscaperFilter($type, $node));
+
+        return $filter;
+    }
+
+    protected function isSafeFor($type, Twig_NodeInterface $expression, $env)
+    {
+        $safe = $this->safeAnalysis->getSafe($expression);
+
+        if (null === $safe) {
+            if (null === $this->traverser) {
+                $this->traverser = new Twig_NodeTraverser($env, array($this->safeAnalysis));
+            }
+
+            $this->safeAnalysis->setSafeVars($this->safeVars);
+
+            $this->traverser->traverse($expression);
+            $safe = $this->safeAnalysis->getSafe($expression);
+        }
+
+        return in_array($type, $safe) || in_array('all', $safe);
+    }
+
+    protected function needEscaping(Twig_Environment $env)
+    {
+        if (count($this->statusStack)) {
+            return $this->statusStack[count($this->statusStack) - 1];
+        }
+
+        return $this->defaultStrategy ? $this->defaultStrategy : false;
+    }
+
+    protected function getEscaperFilter($type, Twig_NodeInterface $node)
+    {
+        $line = $node->getLine();
+        $name = new Twig_Node_Expression_Constant('escape', $line);
+        $args = new Twig_Node(array(new Twig_Node_Expression_Constant((string) $type, $line), new Twig_Node_Expression_Constant(null, $line), new Twig_Node_Expression_Constant(true, $line)));
+
+        return new Twig_Node_Expression_Filter($node, $name, $args, $line);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getPriority()
+    {
+        return 0;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/NodeVisitor/Optimizer.php b/vendor/twig/twig/lib/Twig/NodeVisitor/Optimizer.php
new file mode 100644
index 000000000..872b7feaa
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/NodeVisitor/Optimizer.php
@@ -0,0 +1,271 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Twig_NodeVisitor_Optimizer tries to optimizes the AST.
+ *
+ * This visitor is always the last registered one.
+ *
+ * You can configure which optimizations you want to activate via the
+ * optimizer mode.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_NodeVisitor_Optimizer extends Twig_BaseNodeVisitor
+{
+    const OPTIMIZE_ALL = -1;
+    const OPTIMIZE_NONE = 0;
+    const OPTIMIZE_FOR = 2;
+    const OPTIMIZE_RAW_FILTER = 4;
+    const OPTIMIZE_VAR_ACCESS = 8;
+
+    protected $loops = array();
+    protected $loopsTargets = array();
+    protected $optimizers;
+    protected $prependedNodes = array();
+    protected $inABody = false;
+
+    /**
+     * Constructor.
+     *
+     * @param int $optimizers The optimizer mode
+     */
+    public function __construct($optimizers = -1)
+    {
+        if (!is_int($optimizers) || $optimizers > (self::OPTIMIZE_FOR | self::OPTIMIZE_RAW_FILTER | self::OPTIMIZE_VAR_ACCESS)) {
+            throw new InvalidArgumentException(sprintf('Optimizer mode "%s" is not valid.', $optimizers));
+        }
+
+        $this->optimizers = $optimizers;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doEnterNode(Twig_Node $node, Twig_Environment $env)
+    {
+        if (self::OPTIMIZE_FOR === (self::OPTIMIZE_FOR & $this->optimizers)) {
+            $this->enterOptimizeFor($node, $env);
+        }
+
+        if (PHP_VERSION_ID < 50400 && self::OPTIMIZE_VAR_ACCESS === (self::OPTIMIZE_VAR_ACCESS & $this->optimizers) && !$env->isStrictVariables() && !$env->hasExtension('sandbox')) {
+            if ($this->inABody) {
+                if (!$node instanceof Twig_Node_Expression) {
+                    if (get_class($node) !== 'Twig_Node') {
+                        array_unshift($this->prependedNodes, array());
+                    }
+                } else {
+                    $node = $this->optimizeVariables($node, $env);
+                }
+            } elseif ($node instanceof Twig_Node_Body) {
+                $this->inABody = true;
+            }
+        }
+
+        return $node;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doLeaveNode(Twig_Node $node, Twig_Environment $env)
+    {
+        $expression = $node instanceof Twig_Node_Expression;
+
+        if (self::OPTIMIZE_FOR === (self::OPTIMIZE_FOR & $this->optimizers)) {
+            $this->leaveOptimizeFor($node, $env);
+        }
+
+        if (self::OPTIMIZE_RAW_FILTER === (self::OPTIMIZE_RAW_FILTER & $this->optimizers)) {
+            $node = $this->optimizeRawFilter($node, $env);
+        }
+
+        $node = $this->optimizePrintNode($node, $env);
+
+        if (self::OPTIMIZE_VAR_ACCESS === (self::OPTIMIZE_VAR_ACCESS & $this->optimizers) && !$env->isStrictVariables() && !$env->hasExtension('sandbox')) {
+            if ($node instanceof Twig_Node_Body) {
+                $this->inABody = false;
+            } elseif ($this->inABody) {
+                if (!$expression && get_class($node) !== 'Twig_Node' && $prependedNodes = array_shift($this->prependedNodes)) {
+                    $nodes = array();
+                    foreach (array_unique($prependedNodes) as $name) {
+                        $nodes[] = new Twig_Node_SetTemp($name, $node->getLine());
+                    }
+
+                    $nodes[] = $node;
+                    $node = new Twig_Node($nodes);
+                }
+            }
+        }
+
+        return $node;
+    }
+
+    protected function optimizeVariables(Twig_NodeInterface $node, Twig_Environment $env)
+    {
+        if ('Twig_Node_Expression_Name' === get_class($node) && $node->isSimple()) {
+            $this->prependedNodes[0][] = $node->getAttribute('name');
+
+            return new Twig_Node_Expression_TempName($node->getAttribute('name'), $node->getLine());
+        }
+
+        return $node;
+    }
+
+    /**
+     * Optimizes print nodes.
+     *
+     * It replaces:
+     *
+     *   * "echo $this->render(Parent)Block()" with "$this->display(Parent)Block()"
+     *
+     * @param Twig_NodeInterface $node A Node
+     * @param Twig_Environment   $env  The current Twig environment
+     *
+     * @return Twig_NodeInterface
+     */
+    protected function optimizePrintNode(Twig_NodeInterface $node, Twig_Environment $env)
+    {
+        if (!$node instanceof Twig_Node_Print) {
+            return $node;
+        }
+
+        if (
+            $node->getNode('expr') instanceof Twig_Node_Expression_BlockReference ||
+            $node->getNode('expr') instanceof Twig_Node_Expression_Parent
+        ) {
+            $node->getNode('expr')->setAttribute('output', true);
+
+            return $node->getNode('expr');
+        }
+
+        return $node;
+    }
+
+    /**
+     * Removes "raw" filters.
+     *
+     * @param Twig_NodeInterface $node A Node
+     * @param Twig_Environment   $env  The current Twig environment
+     *
+     * @return Twig_NodeInterface
+     */
+    protected function optimizeRawFilter(Twig_NodeInterface $node, Twig_Environment $env)
+    {
+        if ($node instanceof Twig_Node_Expression_Filter && 'raw' == $node->getNode('filter')->getAttribute('value')) {
+            return $node->getNode('node');
+        }
+
+        return $node;
+    }
+
+    /**
+     * Optimizes "for" tag by removing the "loop" variable creation whenever possible.
+     *
+     * @param Twig_NodeInterface $node A Node
+     * @param Twig_Environment   $env  The current Twig environment
+     */
+    protected function enterOptimizeFor(Twig_NodeInterface $node, Twig_Environment $env)
+    {
+        if ($node instanceof Twig_Node_For) {
+            // disable the loop variable by default
+            $node->setAttribute('with_loop', false);
+            array_unshift($this->loops, $node);
+            array_unshift($this->loopsTargets, $node->getNode('value_target')->getAttribute('name'));
+            array_unshift($this->loopsTargets, $node->getNode('key_target')->getAttribute('name'));
+        } elseif (!$this->loops) {
+            // we are outside a loop
+            return;
+        }
+
+        // when do we need to add the loop variable back?
+
+        // the loop variable is referenced for the current loop
+        elseif ($node instanceof Twig_Node_Expression_Name && 'loop' === $node->getAttribute('name')) {
+            $node->setAttribute('always_defined', true);
+            $this->addLoopToCurrent();
+        }
+
+        // optimize access to loop targets
+        elseif ($node instanceof Twig_Node_Expression_Name && in_array($node->getAttribute('name'), $this->loopsTargets)) {
+            $node->setAttribute('always_defined', true);
+        }
+
+        // block reference
+        elseif ($node instanceof Twig_Node_BlockReference || $node instanceof Twig_Node_Expression_BlockReference) {
+            $this->addLoopToCurrent();
+        }
+
+        // include without the only attribute
+        elseif ($node instanceof Twig_Node_Include && !$node->getAttribute('only')) {
+            $this->addLoopToAll();
+        }
+
+        // include function without the with_context=false parameter
+        elseif ($node instanceof Twig_Node_Expression_Function
+            && 'include' === $node->getAttribute('name')
+            && (!$node->getNode('arguments')->hasNode('with_context')
+                 || false !== $node->getNode('arguments')->getNode('with_context')->getAttribute('value')
+               )
+        ) {
+            $this->addLoopToAll();
+        }
+
+        // the loop variable is referenced via an attribute
+        elseif ($node instanceof Twig_Node_Expression_GetAttr
+            && (!$node->getNode('attribute') instanceof Twig_Node_Expression_Constant
+                || 'parent' === $node->getNode('attribute')->getAttribute('value')
+               )
+            && (true === $this->loops[0]->getAttribute('with_loop')
+                || ($node->getNode('node') instanceof Twig_Node_Expression_Name
+                    && 'loop' === $node->getNode('node')->getAttribute('name')
+                   )
+               )
+        ) {
+            $this->addLoopToAll();
+        }
+    }
+
+    /**
+     * Optimizes "for" tag by removing the "loop" variable creation whenever possible.
+     *
+     * @param Twig_NodeInterface $node A Node
+     * @param Twig_Environment   $env  The current Twig environment
+     */
+    protected function leaveOptimizeFor(Twig_NodeInterface $node, Twig_Environment $env)
+    {
+        if ($node instanceof Twig_Node_For) {
+            array_shift($this->loops);
+            array_shift($this->loopsTargets);
+            array_shift($this->loopsTargets);
+        }
+    }
+
+    protected function addLoopToCurrent()
+    {
+        $this->loops[0]->setAttribute('with_loop', true);
+    }
+
+    protected function addLoopToAll()
+    {
+        foreach ($this->loops as $loop) {
+            $loop->setAttribute('with_loop', true);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getPriority()
+    {
+        return 255;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/NodeVisitor/SafeAnalysis.php b/vendor/twig/twig/lib/Twig/NodeVisitor/SafeAnalysis.php
new file mode 100644
index 000000000..439f5bf49
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/NodeVisitor/SafeAnalysis.php
@@ -0,0 +1,154 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_NodeVisitor_SafeAnalysis extends Twig_BaseNodeVisitor
+{
+    protected $data = array();
+    protected $safeVars = array();
+
+    public function setSafeVars($safeVars)
+    {
+        $this->safeVars = $safeVars;
+    }
+
+    public function getSafe(Twig_NodeInterface $node)
+    {
+        $hash = spl_object_hash($node);
+        if (!isset($this->data[$hash])) {
+            return;
+        }
+
+        foreach ($this->data[$hash] as $bucket) {
+            if ($bucket['key'] !== $node) {
+                continue;
+            }
+
+            if (in_array('html_attr', $bucket['value'])) {
+                $bucket['value'][] = 'html';
+            }
+
+            return $bucket['value'];
+        }
+    }
+
+    protected function setSafe(Twig_NodeInterface $node, array $safe)
+    {
+        $hash = spl_object_hash($node);
+        if (isset($this->data[$hash])) {
+            foreach ($this->data[$hash] as &$bucket) {
+                if ($bucket['key'] === $node) {
+                    $bucket['value'] = $safe;
+
+                    return;
+                }
+            }
+        }
+        $this->data[$hash][] = array(
+            'key' => $node,
+            'value' => $safe,
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doEnterNode(Twig_Node $node, Twig_Environment $env)
+    {
+        return $node;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doLeaveNode(Twig_Node $node, Twig_Environment $env)
+    {
+        if ($node instanceof Twig_Node_Expression_Constant) {
+            // constants are marked safe for all
+            $this->setSafe($node, array('all'));
+        } elseif ($node instanceof Twig_Node_Expression_BlockReference) {
+            // blocks are safe by definition
+            $this->setSafe($node, array('all'));
+        } elseif ($node instanceof Twig_Node_Expression_Parent) {
+            // parent block is safe by definition
+            $this->setSafe($node, array('all'));
+        } elseif ($node instanceof Twig_Node_Expression_Conditional) {
+            // intersect safeness of both operands
+            $safe = $this->intersectSafe($this->getSafe($node->getNode('expr2')), $this->getSafe($node->getNode('expr3')));
+            $this->setSafe($node, $safe);
+        } elseif ($node instanceof Twig_Node_Expression_Filter) {
+            // filter expression is safe when the filter is safe
+            $name = $node->getNode('filter')->getAttribute('value');
+            $args = $node->getNode('arguments');
+            if (false !== $filter = $env->getFilter($name)) {
+                $safe = $filter->getSafe($args);
+                if (null === $safe) {
+                    $safe = $this->intersectSafe($this->getSafe($node->getNode('node')), $filter->getPreservesSafety());
+                }
+                $this->setSafe($node, $safe);
+            } else {
+                $this->setSafe($node, array());
+            }
+        } elseif ($node instanceof Twig_Node_Expression_Function) {
+            // function expression is safe when the function is safe
+            $name = $node->getAttribute('name');
+            $args = $node->getNode('arguments');
+            $function = $env->getFunction($name);
+            if (false !== $function) {
+                $this->setSafe($node, $function->getSafe($args));
+            } else {
+                $this->setSafe($node, array());
+            }
+        } elseif ($node instanceof Twig_Node_Expression_MethodCall) {
+            if ($node->getAttribute('safe')) {
+                $this->setSafe($node, array('all'));
+            } else {
+                $this->setSafe($node, array());
+            }
+        } elseif ($node instanceof Twig_Node_Expression_GetAttr && $node->getNode('node') instanceof Twig_Node_Expression_Name) {
+            $name = $node->getNode('node')->getAttribute('name');
+            // attributes on template instances are safe
+            if ('_self' == $name || in_array($name, $this->safeVars)) {
+                $this->setSafe($node, array('all'));
+            } else {
+                $this->setSafe($node, array());
+            }
+        } else {
+            $this->setSafe($node, array());
+        }
+
+        return $node;
+    }
+
+    protected function intersectSafe(array $a = null, array $b = null)
+    {
+        if (null === $a || null === $b) {
+            return array();
+        }
+
+        if (in_array('all', $a)) {
+            return $b;
+        }
+
+        if (in_array('all', $b)) {
+            return $a;
+        }
+
+        return array_intersect($a, $b);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getPriority()
+    {
+        return 0;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/NodeVisitor/Sandbox.php b/vendor/twig/twig/lib/Twig/NodeVisitor/Sandbox.php
new file mode 100644
index 000000000..7f1b913b7
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/NodeVisitor/Sandbox.php
@@ -0,0 +1,82 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Twig_NodeVisitor_Sandbox implements sandboxing.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_NodeVisitor_Sandbox extends Twig_BaseNodeVisitor
+{
+    protected $inAModule = false;
+    protected $tags;
+    protected $filters;
+    protected $functions;
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doEnterNode(Twig_Node $node, Twig_Environment $env)
+    {
+        if ($node instanceof Twig_Node_Module) {
+            $this->inAModule = true;
+            $this->tags = array();
+            $this->filters = array();
+            $this->functions = array();
+
+            return $node;
+        } elseif ($this->inAModule) {
+            // look for tags
+            if ($node->getNodeTag() && !isset($this->tags[$node->getNodeTag()])) {
+                $this->tags[$node->getNodeTag()] = $node;
+            }
+
+            // look for filters
+            if ($node instanceof Twig_Node_Expression_Filter && !isset($this->filters[$node->getNode('filter')->getAttribute('value')])) {
+                $this->filters[$node->getNode('filter')->getAttribute('value')] = $node;
+            }
+
+            // look for functions
+            if ($node instanceof Twig_Node_Expression_Function && !isset($this->functions[$node->getAttribute('name')])) {
+                $this->functions[$node->getAttribute('name')] = $node;
+            }
+
+            // wrap print to check __toString() calls
+            if ($node instanceof Twig_Node_Print) {
+                return new Twig_Node_SandboxedPrint($node->getNode('expr'), $node->getLine(), $node->getNodeTag());
+            }
+        }
+
+        return $node;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doLeaveNode(Twig_Node $node, Twig_Environment $env)
+    {
+        if ($node instanceof Twig_Node_Module) {
+            $this->inAModule = false;
+
+            $node->setNode('display_start', new Twig_Node(array(new Twig_Node_CheckSecurity($this->filters, $this->tags, $this->functions), $node->getNode('display_start'))));
+        }
+
+        return $node;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getPriority()
+    {
+        return 0;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/NodeVisitorInterface.php b/vendor/twig/twig/lib/Twig/NodeVisitorInterface.php
new file mode 100644
index 000000000..f27616302
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/NodeVisitorInterface.php
@@ -0,0 +1,47 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Twig_NodeVisitorInterface is the interface the all node visitor classes must implement.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface Twig_NodeVisitorInterface
+{
+    /**
+     * Called before child nodes are visited.
+     *
+     * @param Twig_NodeInterface $node The node to visit
+     * @param Twig_Environment   $env  The Twig environment instance
+     *
+     * @return Twig_NodeInterface The modified node
+     */
+    public function enterNode(Twig_NodeInterface $node, Twig_Environment $env);
+
+    /**
+     * Called after child nodes are visited.
+     *
+     * @param Twig_NodeInterface $node The node to visit
+     * @param Twig_Environment   $env  The Twig environment instance
+     *
+     * @return Twig_NodeInterface|false The modified node or false if the node must be removed
+     */
+    public function leaveNode(Twig_NodeInterface $node, Twig_Environment $env);
+
+    /**
+     * Returns the priority for this visitor.
+     *
+     * Priority should be between -10 and 10 (0 is the default).
+     *
+     * @return int The priority level
+     */
+    public function getPriority();
+}
diff --git a/vendor/twig/twig/lib/Twig/Parser.php b/vendor/twig/twig/lib/Twig/Parser.php
new file mode 100644
index 000000000..4628d67df
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Parser.php
@@ -0,0 +1,399 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Default parser implementation.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Parser implements Twig_ParserInterface
+{
+    protected $stack = array();
+    protected $stream;
+    protected $parent;
+    protected $handlers;
+    protected $visitors;
+    protected $expressionParser;
+    protected $blocks;
+    protected $blockStack;
+    protected $macros;
+    protected $env;
+    protected $reservedMacroNames;
+    protected $importedSymbols;
+    protected $traits;
+    protected $embeddedTemplates = array();
+
+    /**
+     * Constructor.
+     *
+     * @param Twig_Environment $env A Twig_Environment instance
+     */
+    public function __construct(Twig_Environment $env)
+    {
+        $this->env = $env;
+    }
+
+    public function getEnvironment()
+    {
+        return $this->env;
+    }
+
+    public function getVarName()
+    {
+        return sprintf('__internal_%s', hash('sha256', uniqid(mt_rand(), true), false));
+    }
+
+    public function getFilename()
+    {
+        return $this->stream->getFilename();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function parse(Twig_TokenStream $stream, $test = null, $dropNeedle = false)
+    {
+        // push all variables into the stack to keep the current state of the parser
+        // using get_object_vars() instead of foreach would lead to https://bugs.php.net/71336
+        $vars = array();
+        foreach ($this as $k => $v) {
+            $vars[$k] = $v;
+        }
+
+        unset($vars['stack'], $vars['env'], $vars['handlers'], $vars['visitors'], $vars['expressionParser'], $vars['reservedMacroNames']);
+        $this->stack[] = $vars;
+
+        // tag handlers
+        if (null === $this->handlers) {
+            $this->handlers = $this->env->getTokenParsers();
+            $this->handlers->setParser($this);
+        }
+
+        // node visitors
+        if (null === $this->visitors) {
+            $this->visitors = $this->env->getNodeVisitors();
+        }
+
+        if (null === $this->expressionParser) {
+            $this->expressionParser = new Twig_ExpressionParser($this, $this->env->getUnaryOperators(), $this->env->getBinaryOperators());
+        }
+
+        $this->stream = $stream;
+        $this->parent = null;
+        $this->blocks = array();
+        $this->macros = array();
+        $this->traits = array();
+        $this->blockStack = array();
+        $this->importedSymbols = array(array());
+        $this->embeddedTemplates = array();
+
+        try {
+            $body = $this->subparse($test, $dropNeedle);
+
+            if (null !== $this->parent && null === $body = $this->filterBodyNodes($body)) {
+                $body = new Twig_Node();
+            }
+        } catch (Twig_Error_Syntax $e) {
+            if (!$e->getTemplateFile()) {
+                $e->setTemplateFile($this->getFilename());
+            }
+
+            if (!$e->getTemplateLine()) {
+                $e->setTemplateLine($this->stream->getCurrent()->getLine());
+            }
+
+            throw $e;
+        }
+
+        $node = new Twig_Node_Module(new Twig_Node_Body(array($body)), $this->parent, new Twig_Node($this->blocks), new Twig_Node($this->macros), new Twig_Node($this->traits), $this->embeddedTemplates, $this->getFilename());
+
+        $traverser = new Twig_NodeTraverser($this->env, $this->visitors);
+
+        $node = $traverser->traverse($node);
+
+        // restore previous stack so previous parse() call can resume working
+        foreach (array_pop($this->stack) as $key => $val) {
+            $this->$key = $val;
+        }
+
+        return $node;
+    }
+
+    public function subparse($test, $dropNeedle = false)
+    {
+        $lineno = $this->getCurrentToken()->getLine();
+        $rv = array();
+        while (!$this->stream->isEOF()) {
+            switch ($this->getCurrentToken()->getType()) {
+                case Twig_Token::TEXT_TYPE:
+                    $token = $this->stream->next();
+                    $rv[] = new Twig_Node_Text($token->getValue(), $token->getLine());
+                    break;
+
+                case Twig_Token::VAR_START_TYPE:
+                    $token = $this->stream->next();
+                    $expr = $this->expressionParser->parseExpression();
+                    $this->stream->expect(Twig_Token::VAR_END_TYPE);
+                    $rv[] = new Twig_Node_Print($expr, $token->getLine());
+                    break;
+
+                case Twig_Token::BLOCK_START_TYPE:
+                    $this->stream->next();
+                    $token = $this->getCurrentToken();
+
+                    if ($token->getType() !== Twig_Token::NAME_TYPE) {
+                        throw new Twig_Error_Syntax('A block must start with a tag name.', $token->getLine(), $this->getFilename());
+                    }
+
+                    if (null !== $test && call_user_func($test, $token)) {
+                        if ($dropNeedle) {
+                            $this->stream->next();
+                        }
+
+                        if (1 === count($rv)) {
+                            return $rv[0];
+                        }
+
+                        return new Twig_Node($rv, array(), $lineno);
+                    }
+
+                    $subparser = $this->handlers->getTokenParser($token->getValue());
+                    if (null === $subparser) {
+                        if (null !== $test) {
+                            $e = new Twig_Error_Syntax(sprintf('Unexpected "%s" tag', $token->getValue()), $token->getLine(), $this->getFilename());
+
+                            if (is_array($test) && isset($test[0]) && $test[0] instanceof Twig_TokenParserInterface) {
+                                $e->appendMessage(sprintf(' (expecting closing tag for the "%s" tag defined near line %s).', $test[0]->getTag(), $lineno));
+                            }
+                        } else {
+                            $e = new Twig_Error_Syntax(sprintf('Unknown "%s" tag.', $token->getValue()), $token->getLine(), $this->getFilename());
+                            $e->addSuggestions($token->getValue(), array_keys($this->env->getTags()));
+                        }
+
+                        throw $e;
+                    }
+
+                    $this->stream->next();
+
+                    $node = $subparser->parse($token);
+                    if (null !== $node) {
+                        $rv[] = $node;
+                    }
+                    break;
+
+                default:
+                    throw new Twig_Error_Syntax('Lexer or parser ended up in unsupported state.', 0, $this->getFilename());
+            }
+        }
+
+        if (1 === count($rv)) {
+            return $rv[0];
+        }
+
+        return new Twig_Node($rv, array(), $lineno);
+    }
+
+    public function addHandler($name, $class)
+    {
+        $this->handlers[$name] = $class;
+    }
+
+    public function addNodeVisitor(Twig_NodeVisitorInterface $visitor)
+    {
+        $this->visitors[] = $visitor;
+    }
+
+    public function getBlockStack()
+    {
+        return $this->blockStack;
+    }
+
+    public function peekBlockStack()
+    {
+        return $this->blockStack[count($this->blockStack) - 1];
+    }
+
+    public function popBlockStack()
+    {
+        array_pop($this->blockStack);
+    }
+
+    public function pushBlockStack($name)
+    {
+        $this->blockStack[] = $name;
+    }
+
+    public function hasBlock($name)
+    {
+        return isset($this->blocks[$name]);
+    }
+
+    public function getBlock($name)
+    {
+        return $this->blocks[$name];
+    }
+
+    public function setBlock($name, Twig_Node_Block $value)
+    {
+        $this->blocks[$name] = new Twig_Node_Body(array($value), array(), $value->getLine());
+    }
+
+    public function hasMacro($name)
+    {
+        return isset($this->macros[$name]);
+    }
+
+    public function setMacro($name, Twig_Node_Macro $node)
+    {
+        if ($this->isReservedMacroName($name)) {
+            throw new Twig_Error_Syntax(sprintf('"%s" cannot be used as a macro name as it is a reserved keyword.', $name), $node->getLine(), $this->getFilename());
+        }
+
+        $this->macros[$name] = $node;
+    }
+
+    public function isReservedMacroName($name)
+    {
+        if (null === $this->reservedMacroNames) {
+            $this->reservedMacroNames = array();
+            $r = new ReflectionClass($this->env->getBaseTemplateClass());
+            foreach ($r->getMethods() as $method) {
+                $methodName = strtolower($method->getName());
+
+                if ('get' === substr($methodName, 0, 3) && isset($methodName[3])) {
+                    $this->reservedMacroNames[] = substr($methodName, 3);
+                }
+            }
+        }
+
+        return in_array(strtolower($name), $this->reservedMacroNames);
+    }
+
+    public function addTrait($trait)
+    {
+        $this->traits[] = $trait;
+    }
+
+    public function hasTraits()
+    {
+        return count($this->traits) > 0;
+    }
+
+    public function embedTemplate(Twig_Node_Module $template)
+    {
+        $template->setIndex(mt_rand());
+
+        $this->embeddedTemplates[] = $template;
+    }
+
+    public function addImportedSymbol($type, $alias, $name = null, Twig_Node_Expression $node = null)
+    {
+        $this->importedSymbols[0][$type][$alias] = array('name' => $name, 'node' => $node);
+    }
+
+    public function getImportedSymbol($type, $alias)
+    {
+        foreach ($this->importedSymbols as $functions) {
+            if (isset($functions[$type][$alias])) {
+                return $functions[$type][$alias];
+            }
+        }
+    }
+
+    public function isMainScope()
+    {
+        return 1 === count($this->importedSymbols);
+    }
+
+    public function pushLocalScope()
+    {
+        array_unshift($this->importedSymbols, array());
+    }
+
+    public function popLocalScope()
+    {
+        array_shift($this->importedSymbols);
+    }
+
+    /**
+     * Gets the expression parser.
+     *
+     * @return Twig_ExpressionParser The expression parser
+     */
+    public function getExpressionParser()
+    {
+        return $this->expressionParser;
+    }
+
+    public function getParent()
+    {
+        return $this->parent;
+    }
+
+    public function setParent($parent)
+    {
+        $this->parent = $parent;
+    }
+
+    /**
+     * Gets the token stream.
+     *
+     * @return Twig_TokenStream The token stream
+     */
+    public function getStream()
+    {
+        return $this->stream;
+    }
+
+    /**
+     * Gets the current token.
+     *
+     * @return Twig_Token The current token
+     */
+    public function getCurrentToken()
+    {
+        return $this->stream->getCurrent();
+    }
+
+    protected function filterBodyNodes(Twig_NodeInterface $node)
+    {
+        // check that the body does not contain non-empty output nodes
+        if (
+            ($node instanceof Twig_Node_Text && !ctype_space($node->getAttribute('data')))
+            ||
+            (!$node instanceof Twig_Node_Text && !$node instanceof Twig_Node_BlockReference && $node instanceof Twig_NodeOutputInterface)
+        ) {
+            if (false !== strpos((string) $node, chr(0xEF).chr(0xBB).chr(0xBF))) {
+                throw new Twig_Error_Syntax('A template that extends another one cannot have a body but a byte order mark (BOM) has been detected; it must be removed.', $node->getLine(), $this->getFilename());
+            }
+
+            throw new Twig_Error_Syntax('A template that extends another one cannot have a body.', $node->getLine(), $this->getFilename());
+        }
+
+        // bypass "set" nodes as they "capture" the output
+        if ($node instanceof Twig_Node_Set) {
+            return $node;
+        }
+
+        if ($node instanceof Twig_NodeOutputInterface) {
+            return;
+        }
+
+        foreach ($node as $k => $n) {
+            if (null !== $n && null === $this->filterBodyNodes($n)) {
+                $node->removeNode($k);
+            }
+        }
+
+        return $node;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/ParserInterface.php b/vendor/twig/twig/lib/Twig/ParserInterface.php
new file mode 100644
index 000000000..8e7cc0a85
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/ParserInterface.php
@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Interface implemented by parser classes.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since 1.12 (to be removed in 3.0)
+ */
+interface Twig_ParserInterface
+{
+    /**
+     * Converts a token stream to a node tree.
+     *
+     * @param Twig_TokenStream $stream A token stream instance
+     *
+     * @return Twig_Node_Module A node tree
+     *
+     * @throws Twig_Error_Syntax When the token stream is syntactically or semantically wrong
+     */
+    public function parse(Twig_TokenStream $stream);
+}
diff --git a/vendor/twig/twig/lib/Twig/Profiler/Dumper/Blackfire.php b/vendor/twig/twig/lib/Twig/Profiler/Dumper/Blackfire.php
new file mode 100644
index 000000000..b82747a94
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Profiler/Dumper/Blackfire.php
@@ -0,0 +1,68 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2015 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Profiler_Dumper_Blackfire
+{
+    public function dump(Twig_Profiler_Profile $profile)
+    {
+        $data = array();
+        $this->dumpProfile('main()', $profile, $data);
+        $this->dumpChildren('main()', $profile, $data);
+
+        $start = microtime(true);
+        $str = <<<EOF
+file-format: BlackfireProbe
+cost-dimensions: wt mu pmu
+request-start: {$start}
+
+
+EOF;
+
+        foreach ($data as $name => $values) {
+            $str .= "{$name}//{$values['ct']} {$values['wt']} {$values['mu']} {$values['pmu']}\n";
+        }
+
+        return $str;
+    }
+
+    private function dumpChildren($parent, Twig_Profiler_Profile $profile, &$data)
+    {
+        foreach ($profile as $p) {
+            if ($p->isTemplate()) {
+                $name = $p->getTemplate();
+            } else {
+                $name = sprintf('%s::%s(%s)', $p->getTemplate(), $p->getType(), $p->getName());
+            }
+            $this->dumpProfile(sprintf('%s==>%s', $parent, $name), $p, $data);
+            $this->dumpChildren($name, $p, $data);
+        }
+    }
+
+    private function dumpProfile($edge, Twig_Profiler_Profile $profile, &$data)
+    {
+        if (isset($data[$edge])) {
+            $data[$edge]['ct'] += 1;
+            $data[$edge]['wt'] += floor($profile->getDuration() * 1000000);
+            $data[$edge]['mu'] += $profile->getMemoryUsage();
+            $data[$edge]['pmu'] += $profile->getPeakMemoryUsage();
+        } else {
+            $data[$edge] = array(
+                'ct' => 1,
+                'wt' => floor($profile->getDuration() * 1000000),
+                'mu' => $profile->getMemoryUsage(),
+                'pmu' => $profile->getPeakMemoryUsage(),
+            );
+        }
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Profiler/Dumper/Html.php b/vendor/twig/twig/lib/Twig/Profiler/Dumper/Html.php
new file mode 100644
index 000000000..f066da750
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Profiler/Dumper/Html.php
@@ -0,0 +1,43 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2015 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Profiler_Dumper_Html extends Twig_Profiler_Dumper_Text
+{
+    private static $colors = array(
+        'block' => '#dfd',
+        'macro' => '#ddf',
+        'template' => '#ffd',
+        'big' => '#d44',
+    );
+
+    public function dump(Twig_Profiler_Profile $profile)
+    {
+        return '<pre>'.parent::dump($profile).'</pre>';
+    }
+
+    protected function formatTemplate(Twig_Profiler_Profile $profile, $prefix)
+    {
+        return sprintf('%s└ <span style="background-color: %s">%s</span>', $prefix, self::$colors['template'], $profile->getTemplate());
+    }
+
+    protected function formatNonTemplate(Twig_Profiler_Profile $profile, $prefix)
+    {
+        return sprintf('%s└ %s::%s(<span style="background-color: %s">%s</span>)', $prefix, $profile->getTemplate(), $profile->getType(), isset(self::$colors[$profile->getType()]) ? self::$colors[$profile->getType()] : 'auto', $profile->getName());
+    }
+
+    protected function formatTime(Twig_Profiler_Profile $profile, $percent)
+    {
+        return sprintf('<span style="color: %s">%.2fms/%.0f%%</span>', $percent > 20 ? self::$colors['big'] : 'auto', $profile->getDuration() * 1000, $percent);
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Profiler/Dumper/Text.php b/vendor/twig/twig/lib/Twig/Profiler/Dumper/Text.php
new file mode 100644
index 000000000..998e210d3
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Profiler/Dumper/Text.php
@@ -0,0 +1,68 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2015 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Profiler_Dumper_Text
+{
+    private $root;
+
+    public function dump(Twig_Profiler_Profile $profile)
+    {
+        return $this->dumpProfile($profile);
+    }
+
+    protected function formatTemplate(Twig_Profiler_Profile $profile, $prefix)
+    {
+        return sprintf('%s└ %s', $prefix, $profile->getTemplate());
+    }
+
+    protected function formatNonTemplate(Twig_Profiler_Profile $profile, $prefix)
+    {
+        return sprintf('%s└ %s::%s(%s)', $prefix, $profile->getTemplate(), $profile->getType(), $profile->getName());
+    }
+
+    protected function formatTime(Twig_Profiler_Profile $profile, $percent)
+    {
+        return sprintf('%.2fms/%.0f%%', $profile->getDuration() * 1000, $percent);
+    }
+
+    private function dumpProfile(Twig_Profiler_Profile $profile, $prefix = '', $sibling = false)
+    {
+        if ($profile->isRoot()) {
+            $this->root = $profile->getDuration();
+            $start = $profile->getName();
+        } else {
+            if ($profile->isTemplate()) {
+                $start = $this->formatTemplate($profile, $prefix);
+            } else {
+                $start = $this->formatNonTemplate($profile, $prefix);
+            }
+            $prefix .= $sibling ? '│ ' : '  ';
+        }
+
+        $percent = $this->root ? $profile->getDuration() / $this->root * 100 : 0;
+
+        if ($profile->getDuration() * 1000 < 1) {
+            $str = $start."\n";
+        } else {
+            $str = sprintf("%s %s\n", $start, $this->formatTime($profile, $percent));
+        }
+
+        $nCount = count($profile->getProfiles());
+        foreach ($profile as $i => $p) {
+            $str .= $this->dumpProfile($p, $prefix, $i + 1 !== $nCount);
+        }
+
+        return $str;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Profiler/Node/EnterProfile.php b/vendor/twig/twig/lib/Twig/Profiler/Node/EnterProfile.php
new file mode 100644
index 000000000..2f9721481
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Profiler/Node/EnterProfile.php
@@ -0,0 +1,40 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2015 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a profile enter node.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Profiler_Node_EnterProfile extends Twig_Node
+{
+    public function __construct($extensionName, $type, $name, $varName)
+    {
+        parent::__construct(array(), array('extension_name' => $extensionName, 'name' => $name, 'type' => $type, 'var_name' => $varName));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->write(sprintf('$%s = $this->env->getExtension(', $this->getAttribute('var_name')))
+            ->repr($this->getAttribute('extension_name'))
+            ->raw(");\n")
+            ->write(sprintf('$%s->enter($%s = new Twig_Profiler_Profile($this->getTemplateName(), ', $this->getAttribute('var_name'), $this->getAttribute('var_name').'_prof'))
+            ->repr($this->getAttribute('type'))
+            ->raw(', ')
+            ->repr($this->getAttribute('name'))
+            ->raw("));\n\n")
+        ;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Profiler/Node/LeaveProfile.php b/vendor/twig/twig/lib/Twig/Profiler/Node/LeaveProfile.php
new file mode 100644
index 000000000..88074c2f6
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Profiler/Node/LeaveProfile.php
@@ -0,0 +1,34 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2015 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a profile leave node.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Profiler_Node_LeaveProfile extends Twig_Node
+{
+    public function __construct($varName)
+    {
+        parent::__construct(array(), array('var_name' => $varName));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function compile(Twig_Compiler $compiler)
+    {
+        $compiler
+            ->write("\n")
+            ->write(sprintf("\$%s->leave(\$%s);\n\n", $this->getAttribute('var_name'), $this->getAttribute('var_name').'_prof'))
+        ;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Profiler/NodeVisitor/Profiler.php b/vendor/twig/twig/lib/Twig/Profiler/NodeVisitor/Profiler.php
new file mode 100644
index 000000000..4b0baa82e
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Profiler/NodeVisitor/Profiler.php
@@ -0,0 +1,72 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2015 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Profiler_NodeVisitor_Profiler extends Twig_BaseNodeVisitor
+{
+    private $extensionName;
+
+    public function __construct($extensionName)
+    {
+        $this->extensionName = $extensionName;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doEnterNode(Twig_Node $node, Twig_Environment $env)
+    {
+        return $node;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doLeaveNode(Twig_Node $node, Twig_Environment $env)
+    {
+        if ($node instanceof Twig_Node_Module) {
+            $varName = $this->getVarName();
+            $node->setNode('display_start', new Twig_Node(array(new Twig_Profiler_Node_EnterProfile($this->extensionName, Twig_Profiler_Profile::TEMPLATE, $node->getAttribute('filename'), $varName), $node->getNode('display_start'))));
+            $node->setNode('display_end', new Twig_Node(array(new Twig_Profiler_Node_LeaveProfile($varName), $node->getNode('display_end'))));
+        } elseif ($node instanceof Twig_Node_Block) {
+            $varName = $this->getVarName();
+            $node->setNode('body', new Twig_Node_Body(array(
+                new Twig_Profiler_Node_EnterProfile($this->extensionName, Twig_Profiler_Profile::BLOCK, $node->getAttribute('name'), $varName),
+                $node->getNode('body'),
+                new Twig_Profiler_Node_LeaveProfile($varName),
+            )));
+        } elseif ($node instanceof Twig_Node_Macro) {
+            $varName = $this->getVarName();
+            $node->setNode('body', new Twig_Node_Body(array(
+                new Twig_Profiler_Node_EnterProfile($this->extensionName, Twig_Profiler_Profile::MACRO, $node->getAttribute('name'), $varName),
+                $node->getNode('body'),
+                new Twig_Profiler_Node_LeaveProfile($varName),
+            )));
+        }
+
+        return $node;
+    }
+
+    private function getVarName()
+    {
+        return sprintf('__internal_%s', hash('sha256', uniqid(mt_rand(), true), false));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getPriority()
+    {
+        return 0;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Profiler/Profile.php b/vendor/twig/twig/lib/Twig/Profiler/Profile.php
new file mode 100644
index 000000000..104bc0581
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Profiler/Profile.php
@@ -0,0 +1,160 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2015 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Profiler_Profile implements IteratorAggregate, Serializable
+{
+    const ROOT = 'ROOT';
+    const BLOCK = 'block';
+    const TEMPLATE = 'template';
+    const MACRO = 'macro';
+
+    private $template;
+    private $name;
+    private $type;
+    private $starts = array();
+    private $ends = array();
+    private $profiles = array();
+
+    public function __construct($template = 'main', $type = self::ROOT, $name = 'main')
+    {
+        $this->template = $template;
+        $this->type = $type;
+        $this->name = 0 === strpos($name, '__internal_') ? 'INTERNAL' : $name;
+        $this->enter();
+    }
+
+    public function getTemplate()
+    {
+        return $this->template;
+    }
+
+    public function getType()
+    {
+        return $this->type;
+    }
+
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    public function isRoot()
+    {
+        return self::ROOT === $this->type;
+    }
+
+    public function isTemplate()
+    {
+        return self::TEMPLATE === $this->type;
+    }
+
+    public function isBlock()
+    {
+        return self::BLOCK === $this->type;
+    }
+
+    public function isMacro()
+    {
+        return self::MACRO === $this->type;
+    }
+
+    public function getProfiles()
+    {
+        return $this->profiles;
+    }
+
+    public function addProfile(Twig_Profiler_Profile $profile)
+    {
+        $this->profiles[] = $profile;
+    }
+
+    /**
+     * Returns the duration in microseconds.
+     *
+     * @return int
+     */
+    public function getDuration()
+    {
+        if ($this->isRoot() && $this->profiles) {
+            // for the root node with children, duration is the sum of all child durations
+            $duration = 0;
+            foreach ($this->profiles as $profile) {
+                $duration += $profile->getDuration();
+            }
+
+            return $duration;
+        }
+
+        return isset($this->ends['wt']) && isset($this->starts['wt']) ? $this->ends['wt'] - $this->starts['wt'] : 0;
+    }
+
+    /**
+     * Returns the memory usage in bytes.
+     *
+     * @return int
+     */
+    public function getMemoryUsage()
+    {
+        return isset($this->ends['mu']) && isset($this->starts['mu']) ? $this->ends['mu'] - $this->starts['mu'] : 0;
+    }
+
+    /**
+     * Returns the peak memory usage in bytes.
+     *
+     * @return int
+     */
+    public function getPeakMemoryUsage()
+    {
+        return isset($this->ends['pmu']) && isset($this->starts['pmu']) ? $this->ends['pmu'] - $this->starts['pmu'] : 0;
+    }
+
+    /**
+     * Starts the profiling.
+     */
+    public function enter()
+    {
+        $this->starts = array(
+            'wt' => microtime(true),
+            'mu' => memory_get_usage(),
+            'pmu' => memory_get_peak_usage(),
+        );
+    }
+
+    /**
+     * Stops the profiling.
+     */
+    public function leave()
+    {
+        $this->ends = array(
+            'wt' => microtime(true),
+            'mu' => memory_get_usage(),
+            'pmu' => memory_get_peak_usage(),
+        );
+    }
+
+    public function getIterator()
+    {
+        return new ArrayIterator($this->profiles);
+    }
+
+    public function serialize()
+    {
+        return serialize(array($this->template, $this->name, $this->type, $this->starts, $this->ends, $this->profiles));
+    }
+
+    public function unserialize($data)
+    {
+        list($this->template, $this->name, $this->type, $this->starts, $this->ends, $this->profiles) = unserialize($data);
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Sandbox/SecurityError.php b/vendor/twig/twig/lib/Twig/Sandbox/SecurityError.php
new file mode 100644
index 000000000..015bfaea2
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Sandbox/SecurityError.php
@@ -0,0 +1,19 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Exception thrown when a security error occurs at runtime.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Sandbox_SecurityError extends Twig_Error
+{
+}
diff --git a/vendor/twig/twig/lib/Twig/Sandbox/SecurityNotAllowedFilterError.php b/vendor/twig/twig/lib/Twig/Sandbox/SecurityNotAllowedFilterError.php
new file mode 100644
index 000000000..99faba9dd
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Sandbox/SecurityNotAllowedFilterError.php
@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Exception thrown when a not allowed filter is used in a template.
+ *
+ * @author Martin Hasoň <martin.hason@gmail.com>
+ */
+class Twig_Sandbox_SecurityNotAllowedFilterError extends Twig_Sandbox_SecurityError
+{
+    private $filterName;
+
+    public function __construct($message, $functionName, $lineno = -1, $filename = null, Exception $previous = null)
+    {
+        parent::__construct($message, $lineno, $filename, $previous);
+        $this->filterName = $functionName;
+    }
+
+    public function getFilterName()
+    {
+        return $this->filterName;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Sandbox/SecurityNotAllowedFunctionError.php b/vendor/twig/twig/lib/Twig/Sandbox/SecurityNotAllowedFunctionError.php
new file mode 100644
index 000000000..05cf488af
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Sandbox/SecurityNotAllowedFunctionError.php
@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Exception thrown when a not allowed function is used in a template.
+ *
+ * @author Martin Hasoň <martin.hason@gmail.com>
+ */
+class Twig_Sandbox_SecurityNotAllowedFunctionError extends Twig_Sandbox_SecurityError
+{
+    private $functionName;
+
+    public function __construct($message, $functionName, $lineno = -1, $filename = null, Exception $previous = null)
+    {
+        parent::__construct($message, $lineno, $filename, $previous);
+        $this->functionName = $functionName;
+    }
+
+    public function getFunctionName()
+    {
+        return $this->functionName;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Sandbox/SecurityNotAllowedTagError.php b/vendor/twig/twig/lib/Twig/Sandbox/SecurityNotAllowedTagError.php
new file mode 100644
index 000000000..b3bb5e8e2
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Sandbox/SecurityNotAllowedTagError.php
@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Exception thrown when a not allowed tag is used in a template.
+ *
+ * @author Martin Hasoň <martin.hason@gmail.com>
+ */
+class Twig_Sandbox_SecurityNotAllowedTagError extends Twig_Sandbox_SecurityError
+{
+    private $tagName;
+
+    public function __construct($message, $tagName, $lineno = -1, $filename = null, Exception $previous = null)
+    {
+        parent::__construct($message, $lineno, $filename, $previous);
+        $this->tagName = $tagName;
+    }
+
+    public function getTagName()
+    {
+        return $this->tagName;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Sandbox/SecurityPolicy.php b/vendor/twig/twig/lib/Twig/Sandbox/SecurityPolicy.php
new file mode 100644
index 000000000..c4dd03dff
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Sandbox/SecurityPolicy.php
@@ -0,0 +1,119 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a security policy which need to be enforced when sandbox mode is enabled.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Sandbox_SecurityPolicy implements Twig_Sandbox_SecurityPolicyInterface
+{
+    protected $allowedTags;
+    protected $allowedFilters;
+    protected $allowedMethods;
+    protected $allowedProperties;
+    protected $allowedFunctions;
+
+    public function __construct(array $allowedTags = array(), array $allowedFilters = array(), array $allowedMethods = array(), array $allowedProperties = array(), array $allowedFunctions = array())
+    {
+        $this->allowedTags = $allowedTags;
+        $this->allowedFilters = $allowedFilters;
+        $this->setAllowedMethods($allowedMethods);
+        $this->allowedProperties = $allowedProperties;
+        $this->allowedFunctions = $allowedFunctions;
+    }
+
+    public function setAllowedTags(array $tags)
+    {
+        $this->allowedTags = $tags;
+    }
+
+    public function setAllowedFilters(array $filters)
+    {
+        $this->allowedFilters = $filters;
+    }
+
+    public function setAllowedMethods(array $methods)
+    {
+        $this->allowedMethods = array();
+        foreach ($methods as $class => $m) {
+            $this->allowedMethods[$class] = array_map('strtolower', is_array($m) ? $m : array($m));
+        }
+    }
+
+    public function setAllowedProperties(array $properties)
+    {
+        $this->allowedProperties = $properties;
+    }
+
+    public function setAllowedFunctions(array $functions)
+    {
+        $this->allowedFunctions = $functions;
+    }
+
+    public function checkSecurity($tags, $filters, $functions)
+    {
+        foreach ($tags as $tag) {
+            if (!in_array($tag, $this->allowedTags)) {
+                throw new Twig_Sandbox_SecurityNotAllowedTagError(sprintf('Tag "%s" is not allowed.', $tag), $tag);
+            }
+        }
+
+        foreach ($filters as $filter) {
+            if (!in_array($filter, $this->allowedFilters)) {
+                throw new Twig_Sandbox_SecurityNotAllowedFilterError(sprintf('Filter "%s" is not allowed.', $filter), $filter);
+            }
+        }
+
+        foreach ($functions as $function) {
+            if (!in_array($function, $this->allowedFunctions)) {
+                throw new Twig_Sandbox_SecurityNotAllowedFunctionError(sprintf('Function "%s" is not allowed.', $function), $function);
+            }
+        }
+    }
+
+    public function checkMethodAllowed($obj, $method)
+    {
+        if ($obj instanceof Twig_TemplateInterface || $obj instanceof Twig_Markup) {
+            return true;
+        }
+
+        $allowed = false;
+        $method = strtolower($method);
+        foreach ($this->allowedMethods as $class => $methods) {
+            if ($obj instanceof $class) {
+                $allowed = in_array($method, $methods);
+
+                break;
+            }
+        }
+
+        if (!$allowed) {
+            throw new Twig_Sandbox_SecurityError(sprintf('Calling "%s" method on a "%s" object is not allowed.', $method, get_class($obj)));
+        }
+    }
+
+    public function checkPropertyAllowed($obj, $property)
+    {
+        $allowed = false;
+        foreach ($this->allowedProperties as $class => $properties) {
+            if ($obj instanceof $class) {
+                $allowed = in_array($property, is_array($properties) ? $properties : array($properties));
+
+                break;
+            }
+        }
+
+        if (!$allowed) {
+            throw new Twig_Sandbox_SecurityError(sprintf('Calling "%s" property on a "%s" object is not allowed.', $property, get_class($obj)));
+        }
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Sandbox/SecurityPolicyInterface.php b/vendor/twig/twig/lib/Twig/Sandbox/SecurityPolicyInterface.php
new file mode 100644
index 000000000..6ab48e3cc
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Sandbox/SecurityPolicyInterface.php
@@ -0,0 +1,24 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Interfaces that all security policy classes must implements.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface Twig_Sandbox_SecurityPolicyInterface
+{
+    public function checkSecurity($tags, $filters, $functions);
+
+    public function checkMethodAllowed($obj, $method);
+
+    public function checkPropertyAllowed($obj, $method);
+}
diff --git a/vendor/twig/twig/lib/Twig/SimpleFilter.php b/vendor/twig/twig/lib/Twig/SimpleFilter.php
new file mode 100644
index 000000000..0c1e092a7
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/SimpleFilter.php
@@ -0,0 +1,117 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009-2012 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a template filter.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_SimpleFilter
+{
+    protected $name;
+    protected $callable;
+    protected $options;
+    protected $arguments = array();
+
+    public function __construct($name, $callable, array $options = array())
+    {
+        $this->name = $name;
+        $this->callable = $callable;
+        $this->options = array_merge(array(
+            'needs_environment' => false,
+            'needs_context' => false,
+            'is_variadic' => false,
+            'is_safe' => null,
+            'is_safe_callback' => null,
+            'pre_escape' => null,
+            'preserves_safety' => null,
+            'node_class' => 'Twig_Node_Expression_Filter',
+            'deprecated' => false,
+            'alternative' => null,
+        ), $options);
+    }
+
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    public function getCallable()
+    {
+        return $this->callable;
+    }
+
+    public function getNodeClass()
+    {
+        return $this->options['node_class'];
+    }
+
+    public function setArguments($arguments)
+    {
+        $this->arguments = $arguments;
+    }
+
+    public function getArguments()
+    {
+        return $this->arguments;
+    }
+
+    public function needsEnvironment()
+    {
+        return $this->options['needs_environment'];
+    }
+
+    public function needsContext()
+    {
+        return $this->options['needs_context'];
+    }
+
+    public function getSafe(Twig_Node $filterArgs)
+    {
+        if (null !== $this->options['is_safe']) {
+            return $this->options['is_safe'];
+        }
+
+        if (null !== $this->options['is_safe_callback']) {
+            return call_user_func($this->options['is_safe_callback'], $filterArgs);
+        }
+    }
+
+    public function getPreservesSafety()
+    {
+        return $this->options['preserves_safety'];
+    }
+
+    public function getPreEscape()
+    {
+        return $this->options['pre_escape'];
+    }
+
+    public function isVariadic()
+    {
+        return $this->options['is_variadic'];
+    }
+
+    public function isDeprecated()
+    {
+        return (bool) $this->options['deprecated'];
+    }
+
+    public function getDeprecatedVersion()
+    {
+        return $this->options['deprecated'];
+    }
+
+    public function getAlternative()
+    {
+        return $this->options['alternative'];
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/SimpleFunction.php b/vendor/twig/twig/lib/Twig/SimpleFunction.php
new file mode 100644
index 000000000..63003d6a0
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/SimpleFunction.php
@@ -0,0 +1,107 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010-2012 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a template function.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_SimpleFunction
+{
+    protected $name;
+    protected $callable;
+    protected $options;
+    protected $arguments = array();
+
+    public function __construct($name, $callable, array $options = array())
+    {
+        $this->name = $name;
+        $this->callable = $callable;
+        $this->options = array_merge(array(
+            'needs_environment' => false,
+            'needs_context' => false,
+            'is_variadic' => false,
+            'is_safe' => null,
+            'is_safe_callback' => null,
+            'node_class' => 'Twig_Node_Expression_Function',
+            'deprecated' => false,
+            'alternative' => null,
+        ), $options);
+    }
+
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    public function getCallable()
+    {
+        return $this->callable;
+    }
+
+    public function getNodeClass()
+    {
+        return $this->options['node_class'];
+    }
+
+    public function setArguments($arguments)
+    {
+        $this->arguments = $arguments;
+    }
+
+    public function getArguments()
+    {
+        return $this->arguments;
+    }
+
+    public function needsEnvironment()
+    {
+        return $this->options['needs_environment'];
+    }
+
+    public function needsContext()
+    {
+        return $this->options['needs_context'];
+    }
+
+    public function getSafe(Twig_Node $functionArgs)
+    {
+        if (null !== $this->options['is_safe']) {
+            return $this->options['is_safe'];
+        }
+
+        if (null !== $this->options['is_safe_callback']) {
+            return call_user_func($this->options['is_safe_callback'], $functionArgs);
+        }
+
+        return array();
+    }
+
+    public function isVariadic()
+    {
+        return $this->options['is_variadic'];
+    }
+
+    public function isDeprecated()
+    {
+        return (bool) $this->options['deprecated'];
+    }
+
+    public function getDeprecatedVersion()
+    {
+        return $this->options['deprecated'];
+    }
+
+    public function getAlternative()
+    {
+        return $this->options['alternative'];
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/SimpleTest.php b/vendor/twig/twig/lib/Twig/SimpleTest.php
new file mode 100644
index 000000000..cff3ae7c9
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/SimpleTest.php
@@ -0,0 +1,69 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010-2012 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a template test.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_SimpleTest
+{
+    protected $name;
+    protected $callable;
+    protected $options;
+
+    public function __construct($name, $callable, array $options = array())
+    {
+        $this->name = $name;
+        $this->callable = $callable;
+        $this->options = array_merge(array(
+            'is_variadic' => false,
+            'node_class' => 'Twig_Node_Expression_Test',
+            'deprecated' => false,
+            'alternative' => null,
+        ), $options);
+    }
+
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    public function getCallable()
+    {
+        return $this->callable;
+    }
+
+    public function getNodeClass()
+    {
+        return $this->options['node_class'];
+    }
+
+    public function isVariadic()
+    {
+        return $this->options['is_variadic'];
+    }
+
+    public function isDeprecated()
+    {
+        return (bool) $this->options['deprecated'];
+    }
+
+    public function getDeprecatedVersion()
+    {
+        return $this->options['deprecated'];
+    }
+
+    public function getAlternative()
+    {
+        return $this->options['alternative'];
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Template.php b/vendor/twig/twig/lib/Twig/Template.php
new file mode 100644
index 000000000..a8160227e
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Template.php
@@ -0,0 +1,614 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Default base class for compiled templates.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+abstract class Twig_Template implements Twig_TemplateInterface
+{
+    protected static $cache = array();
+
+    protected $parent;
+    protected $parents = array();
+    protected $env;
+    protected $blocks = array();
+    protected $traits = array();
+
+    /**
+     * Constructor.
+     *
+     * @param Twig_Environment $env A Twig_Environment instance
+     */
+    public function __construct(Twig_Environment $env)
+    {
+        $this->env = $env;
+    }
+
+    /**
+     * Returns the template name.
+     *
+     * @return string The template name
+     */
+    abstract public function getTemplateName();
+
+    /**
+     * @deprecated since 1.20 (to be removed in 2.0)
+     */
+    public function getEnvironment()
+    {
+        @trigger_error('The '.__METHOD__.' method is deprecated since version 1.20 and will be removed in 2.0.', E_USER_DEPRECATED);
+
+        return $this->env;
+    }
+
+    /**
+     * Returns the parent template.
+     *
+     * This method is for internal use only and should never be called
+     * directly.
+     *
+     * @param array $context
+     *
+     * @return Twig_TemplateInterface|false The parent template or false if there is no parent
+     *
+     * @internal
+     */
+    public function getParent(array $context)
+    {
+        if (null !== $this->parent) {
+            return $this->parent;
+        }
+
+        try {
+            $parent = $this->doGetParent($context);
+
+            if (false === $parent) {
+                return false;
+            }
+
+            if ($parent instanceof self) {
+                return $this->parents[$parent->getTemplateName()] = $parent;
+            }
+
+            if (!isset($this->parents[$parent])) {
+                $this->parents[$parent] = $this->loadTemplate($parent);
+            }
+        } catch (Twig_Error_Loader $e) {
+            $e->setTemplateFile(null);
+            $e->guess();
+
+            throw $e;
+        }
+
+        return $this->parents[$parent];
+    }
+
+    protected function doGetParent(array $context)
+    {
+        return false;
+    }
+
+    public function isTraitable()
+    {
+        return true;
+    }
+
+    /**
+     * Displays a parent block.
+     *
+     * This method is for internal use only and should never be called
+     * directly.
+     *
+     * @param string $name    The block name to display from the parent
+     * @param array  $context The context
+     * @param array  $blocks  The current set of blocks
+     *
+     * @internal
+     */
+    public function displayParentBlock($name, array $context, array $blocks = array())
+    {
+        $name = (string) $name;
+
+        if (isset($this->traits[$name])) {
+            $this->traits[$name][0]->displayBlock($name, $context, $blocks, false);
+        } elseif (false !== $parent = $this->getParent($context)) {
+            $parent->displayBlock($name, $context, $blocks, false);
+        } else {
+            throw new Twig_Error_Runtime(sprintf('The template has no parent and no traits defining the "%s" block', $name), -1, $this->getTemplateName());
+        }
+    }
+
+    /**
+     * Displays a block.
+     *
+     * This method is for internal use only and should never be called
+     * directly.
+     *
+     * @param string $name      The block name to display
+     * @param array  $context   The context
+     * @param array  $blocks    The current set of blocks
+     * @param bool   $useBlocks Whether to use the current set of blocks
+     *
+     * @internal
+     */
+    public function displayBlock($name, array $context, array $blocks = array(), $useBlocks = true)
+    {
+        $name = (string) $name;
+
+        if ($useBlocks && isset($blocks[$name])) {
+            $template = $blocks[$name][0];
+            $block = $blocks[$name][1];
+        } elseif (isset($this->blocks[$name])) {
+            $template = $this->blocks[$name][0];
+            $block = $this->blocks[$name][1];
+        } else {
+            $template = null;
+            $block = null;
+        }
+
+        if (null !== $template) {
+            // avoid RCEs when sandbox is enabled
+            if (!$template instanceof self) {
+                throw new LogicException('A block must be a method on a Twig_Template instance.');
+            }
+
+            try {
+                $template->$block($context, $blocks);
+            } catch (Twig_Error $e) {
+                if (!$e->getTemplateFile()) {
+                    $e->setTemplateFile($template->getTemplateName());
+                }
+
+                // this is mostly useful for Twig_Error_Loader exceptions
+                // see Twig_Error_Loader
+                if (false === $e->getTemplateLine()) {
+                    $e->setTemplateLine(-1);
+                    $e->guess();
+                }
+
+                throw $e;
+            } catch (Exception $e) {
+                throw new Twig_Error_Runtime(sprintf('An exception has been thrown during the rendering of a template ("%s").', $e->getMessage()), -1, $template->getTemplateName(), $e);
+            }
+        } elseif (false !== $parent = $this->getParent($context)) {
+            $parent->displayBlock($name, $context, array_merge($this->blocks, $blocks), false);
+        }
+    }
+
+    /**
+     * Renders a parent block.
+     *
+     * This method is for internal use only and should never be called
+     * directly.
+     *
+     * @param string $name    The block name to render from the parent
+     * @param array  $context The context
+     * @param array  $blocks  The current set of blocks
+     *
+     * @return string The rendered block
+     *
+     * @internal
+     */
+    public function renderParentBlock($name, array $context, array $blocks = array())
+    {
+        ob_start();
+        $this->displayParentBlock($name, $context, $blocks);
+
+        return ob_get_clean();
+    }
+
+    /**
+     * Renders a block.
+     *
+     * This method is for internal use only and should never be called
+     * directly.
+     *
+     * @param string $name      The block name to render
+     * @param array  $context   The context
+     * @param array  $blocks    The current set of blocks
+     * @param bool   $useBlocks Whether to use the current set of blocks
+     *
+     * @return string The rendered block
+     *
+     * @internal
+     */
+    public function renderBlock($name, array $context, array $blocks = array(), $useBlocks = true)
+    {
+        ob_start();
+        $this->displayBlock($name, $context, $blocks, $useBlocks);
+
+        return ob_get_clean();
+    }
+
+    /**
+     * Returns whether a block exists or not.
+     *
+     * This method is for internal use only and should never be called
+     * directly.
+     *
+     * This method does only return blocks defined in the current template
+     * or defined in "used" traits.
+     *
+     * It does not return blocks from parent templates as the parent
+     * template name can be dynamic, which is only known based on the
+     * current context.
+     *
+     * @param string $name The block name
+     *
+     * @return bool true if the block exists, false otherwise
+     *
+     * @internal
+     */
+    public function hasBlock($name)
+    {
+        return isset($this->blocks[(string) $name]);
+    }
+
+    /**
+     * Returns all block names.
+     *
+     * This method is for internal use only and should never be called
+     * directly.
+     *
+     * @return array An array of block names
+     *
+     * @see hasBlock
+     *
+     * @internal
+     */
+    public function getBlockNames()
+    {
+        return array_keys($this->blocks);
+    }
+
+    protected function loadTemplate($template, $templateName = null, $line = null, $index = null)
+    {
+        try {
+            if (is_array($template)) {
+                return $this->env->resolveTemplate($template);
+            }
+
+            if ($template instanceof self) {
+                return $template;
+            }
+
+            return $this->env->loadTemplate($template, $index);
+        } catch (Twig_Error $e) {
+            if (!$e->getTemplateFile()) {
+                $e->setTemplateFile($templateName ? $templateName : $this->getTemplateName());
+            }
+
+            if ($e->getTemplateLine()) {
+                throw $e;
+            }
+
+            if (!$line) {
+                $e->guess();
+            } else {
+                $e->setTemplateLine($line);
+            }
+
+            throw $e;
+        }
+    }
+
+    /**
+     * Returns all blocks.
+     *
+     * This method is for internal use only and should never be called
+     * directly.
+     *
+     * @return array An array of blocks
+     *
+     * @see hasBlock
+     *
+     * @internal
+     */
+    public function getBlocks()
+    {
+        return $this->blocks;
+    }
+
+    /**
+     * Returns the template source code.
+     *
+     * @return string|null The template source code or null if it is not available
+     */
+    public function getSource()
+    {
+        $reflector = new ReflectionClass($this);
+        $file = $reflector->getFileName();
+
+        if (!file_exists($file)) {
+            return;
+        }
+
+        $source = file($file, FILE_IGNORE_NEW_LINES);
+        array_splice($source, 0, $reflector->getEndLine());
+
+        $i = 0;
+        while (isset($source[$i]) && '/* */' === substr_replace($source[$i], '', 3, -2)) {
+            $source[$i] = str_replace('*//* ', '*/', substr($source[$i], 3, -2));
+            ++$i;
+        }
+        array_splice($source, $i);
+
+        return implode("\n", $source);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function display(array $context, array $blocks = array())
+    {
+        $this->displayWithErrorHandling($this->env->mergeGlobals($context), array_merge($this->blocks, $blocks));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function render(array $context)
+    {
+        $level = ob_get_level();
+        ob_start();
+        try {
+            $this->display($context);
+        } catch (Exception $e) {
+            while (ob_get_level() > $level) {
+                ob_end_clean();
+            }
+
+            throw $e;
+        }
+
+        return ob_get_clean();
+    }
+
+    protected function displayWithErrorHandling(array $context, array $blocks = array())
+    {
+        try {
+            $this->doDisplay($context, $blocks);
+        } catch (Twig_Error $e) {
+            if (!$e->getTemplateFile()) {
+                $e->setTemplateFile($this->getTemplateName());
+            }
+
+            // this is mostly useful for Twig_Error_Loader exceptions
+            // see Twig_Error_Loader
+            if (false === $e->getTemplateLine()) {
+                $e->setTemplateLine(-1);
+                $e->guess();
+            }
+
+            throw $e;
+        } catch (Exception $e) {
+            throw new Twig_Error_Runtime(sprintf('An exception has been thrown during the rendering of a template ("%s").', $e->getMessage()), -1, $this->getTemplateName(), $e);
+        }
+    }
+
+    /**
+     * Auto-generated method to display the template with the given context.
+     *
+     * @param array $context An array of parameters to pass to the template
+     * @param array $blocks  An array of blocks to pass to the template
+     */
+    abstract protected function doDisplay(array $context, array $blocks = array());
+
+    /**
+     * Returns a variable from the context.
+     *
+     * This method is for internal use only and should never be called
+     * directly.
+     *
+     * This method should not be overridden in a sub-class as this is an
+     * implementation detail that has been introduced to optimize variable
+     * access for versions of PHP before 5.4. This is not a way to override
+     * the way to get a variable value.
+     *
+     * @param array  $context           The context
+     * @param string $item              The variable to return from the context
+     * @param bool   $ignoreStrictCheck Whether to ignore the strict variable check or not
+     *
+     * @return mixed The content of the context variable
+     *
+     * @throws Twig_Error_Runtime if the variable does not exist and Twig is running in strict mode
+     *
+     * @internal
+     */
+    final protected function getContext($context, $item, $ignoreStrictCheck = false)
+    {
+        if (!array_key_exists($item, $context)) {
+            if ($ignoreStrictCheck || !$this->env->isStrictVariables()) {
+                return;
+            }
+
+            throw new Twig_Error_Runtime(sprintf('Variable "%s" does not exist', $item), -1, $this->getTemplateName());
+        }
+
+        return $context[$item];
+    }
+
+    /**
+     * Returns the attribute value for a given array/object.
+     *
+     * @param mixed  $object            The object or array from where to get the item
+     * @param mixed  $item              The item to get from the array or object
+     * @param array  $arguments         An array of arguments to pass if the item is an object method
+     * @param string $type              The type of attribute (@see Twig_Template constants)
+     * @param bool   $isDefinedTest     Whether this is only a defined check
+     * @param bool   $ignoreStrictCheck Whether to ignore the strict attribute check or not
+     *
+     * @return mixed The attribute value, or a Boolean when $isDefinedTest is true, or null when the attribute is not set and $ignoreStrictCheck is true
+     *
+     * @throws Twig_Error_Runtime if the attribute does not exist and Twig is running in strict mode and $isDefinedTest is false
+     */
+    protected function getAttribute($object, $item, array $arguments = array(), $type = self::ANY_CALL, $isDefinedTest = false, $ignoreStrictCheck = false)
+    {
+        // array
+        if (self::METHOD_CALL !== $type) {
+            $arrayItem = is_bool($item) || is_float($item) ? (int) $item : $item;
+
+            if ((is_array($object) && array_key_exists($arrayItem, $object))
+                || ($object instanceof ArrayAccess && isset($object[$arrayItem]))
+            ) {
+                if ($isDefinedTest) {
+                    return true;
+                }
+
+                return $object[$arrayItem];
+            }
+
+            if (self::ARRAY_CALL === $type || !is_object($object)) {
+                if ($isDefinedTest) {
+                    return false;
+                }
+
+                if ($ignoreStrictCheck || !$this->env->isStrictVariables()) {
+                    return;
+                }
+
+                if ($object instanceof ArrayAccess) {
+                    $message = sprintf('Key "%s" in object with ArrayAccess of class "%s" does not exist', $arrayItem, get_class($object));
+                } elseif (is_object($object)) {
+                    $message = sprintf('Impossible to access a key "%s" on an object of class "%s" that does not implement ArrayAccess interface', $item, get_class($object));
+                } elseif (is_array($object)) {
+                    if (empty($object)) {
+                        $message = sprintf('Key "%s" does not exist as the array is empty', $arrayItem);
+                    } else {
+                        $message = sprintf('Key "%s" for array with keys "%s" does not exist', $arrayItem, implode(', ', array_keys($object)));
+                    }
+                } elseif (self::ARRAY_CALL === $type) {
+                    if (null === $object) {
+                        $message = sprintf('Impossible to access a key ("%s") on a null variable', $item);
+                    } else {
+                        $message = sprintf('Impossible to access a key ("%s") on a %s variable ("%s")', $item, gettype($object), $object);
+                    }
+                } elseif (null === $object) {
+                    $message = sprintf('Impossible to access an attribute ("%s") on a null variable', $item);
+                } else {
+                    $message = sprintf('Impossible to access an attribute ("%s") on a %s variable ("%s")', $item, gettype($object), $object);
+                }
+
+                throw new Twig_Error_Runtime($message, -1, $this->getTemplateName());
+            }
+        }
+
+        if (!is_object($object)) {
+            if ($isDefinedTest) {
+                return false;
+            }
+
+            if ($ignoreStrictCheck || !$this->env->isStrictVariables()) {
+                return;
+            }
+
+            if (null === $object) {
+                $message = sprintf('Impossible to invoke a method ("%s") on a null variable', $item);
+            } else {
+                $message = sprintf('Impossible to invoke a method ("%s") on a %s variable ("%s")', $item, gettype($object), $object);
+            }
+
+            throw new Twig_Error_Runtime($message, -1, $this->getTemplateName());
+        }
+
+        // object property
+        if (self::METHOD_CALL !== $type && !$object instanceof self) { // Twig_Template does not have public properties, and we don't want to allow access to internal ones
+            if (isset($object->$item) || array_key_exists((string) $item, $object)) {
+                if ($isDefinedTest) {
+                    return true;
+                }
+
+                if ($this->env->hasExtension('sandbox')) {
+                    $this->env->getExtension('sandbox')->checkPropertyAllowed($object, $item);
+                }
+
+                return $object->$item;
+            }
+        }
+
+        $class = get_class($object);
+
+        // object method
+        if (!isset(self::$cache[$class]['methods'])) {
+            // get_class_methods returns all methods accessible in the scope, but we only want public ones to be accessible in templates
+            if ($object instanceof self) {
+                $ref = new ReflectionClass($class);
+                $methods = array();
+
+                foreach ($ref->getMethods(ReflectionMethod::IS_PUBLIC) as $refMethod) {
+                    $methodName = strtolower($refMethod->name);
+
+                    // Accessing the environment from templates is forbidden to prevent untrusted changes to the environment
+                    if ('getenvironment' !== $methodName) {
+                        $methods[$methodName] = true;
+                    }
+                }
+
+                self::$cache[$class]['methods'] = $methods;
+            } else {
+                self::$cache[$class]['methods'] = array_change_key_case(array_flip(get_class_methods($object)));
+            }
+        }
+
+        $call = false;
+        $lcItem = strtolower($item);
+        if (isset(self::$cache[$class]['methods'][$lcItem])) {
+            $method = (string) $item;
+        } elseif (isset(self::$cache[$class]['methods']['get'.$lcItem])) {
+            $method = 'get'.$item;
+        } elseif (isset(self::$cache[$class]['methods']['is'.$lcItem])) {
+            $method = 'is'.$item;
+        } elseif (isset(self::$cache[$class]['methods']['__call'])) {
+            $method = (string) $item;
+            $call = true;
+        } else {
+            if ($isDefinedTest) {
+                return false;
+            }
+
+            if ($ignoreStrictCheck || !$this->env->isStrictVariables()) {
+                return;
+            }
+
+            throw new Twig_Error_Runtime(sprintf('Method "%s" for object "%s" does not exist', $item, get_class($object)), -1, $this->getTemplateName());
+        }
+
+        if ($isDefinedTest) {
+            return true;
+        }
+
+        if ($this->env->hasExtension('sandbox')) {
+            $this->env->getExtension('sandbox')->checkMethodAllowed($object, $method);
+        }
+
+        // Some objects throw exceptions when they have __call, and the method we try
+        // to call is not supported. If ignoreStrictCheck is true, we should return null.
+        try {
+            $ret = call_user_func_array(array($object, $method), $arguments);
+        } catch (BadMethodCallException $e) {
+            if ($call && ($ignoreStrictCheck || !$this->env->isStrictVariables())) {
+                return;
+            }
+            throw $e;
+        }
+
+        // useful when calling a template method from a template
+        // this is not supported but unfortunately heavily used in the Symfony profiler
+        if ($object instanceof Twig_TemplateInterface) {
+            return $ret === '' ? '' : new Twig_Markup($ret, $this->env->getCharset());
+        }
+
+        return $ret;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/TemplateInterface.php b/vendor/twig/twig/lib/Twig/TemplateInterface.php
new file mode 100644
index 000000000..32746407e
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TemplateInterface.php
@@ -0,0 +1,48 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Interface implemented by all compiled templates.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since 1.12 (to be removed in 3.0)
+ */
+interface Twig_TemplateInterface
+{
+    const ANY_CALL = 'any';
+    const ARRAY_CALL = 'array';
+    const METHOD_CALL = 'method';
+
+    /**
+     * Renders the template with the given context and returns it as string.
+     *
+     * @param array $context An array of parameters to pass to the template
+     *
+     * @return string The rendered template
+     */
+    public function render(array $context);
+
+    /**
+     * Displays the template with the given context.
+     *
+     * @param array $context An array of parameters to pass to the template
+     * @param array $blocks  An array of blocks to pass to the template
+     */
+    public function display(array $context, array $blocks = array());
+
+    /**
+     * Returns the bound environment for this template.
+     *
+     * @return Twig_Environment The current environment
+     */
+    public function getEnvironment();
+}
diff --git a/vendor/twig/twig/lib/Twig/Test.php b/vendor/twig/twig/lib/Twig/Test.php
new file mode 100644
index 000000000..3c2d8590b
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Test.php
@@ -0,0 +1,37 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2012 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+@trigger_error('The Twig_Test class is deprecated since version 1.12 and will be removed in 2.0. Use Twig_SimpleTest instead.', E_USER_DEPRECATED);
+
+/**
+ * Represents a template test.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since 1.12 (to be removed in 2.0)
+ */
+abstract class Twig_Test implements Twig_TestInterface, Twig_TestCallableInterface
+{
+    protected $options;
+    protected $arguments = array();
+
+    public function __construct(array $options = array())
+    {
+        $this->options = array_merge(array(
+            'callable' => null,
+        ), $options);
+    }
+
+    public function getCallable()
+    {
+        return $this->options['callable'];
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Test/Function.php b/vendor/twig/twig/lib/Twig/Test/Function.php
new file mode 100644
index 000000000..5e76c711b
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Test/Function.php
@@ -0,0 +1,38 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+@trigger_error('The Twig_Test_Function class is deprecated since version 1.12 and will be removed in 2.0. Use Twig_SimpleTest instead.', E_USER_DEPRECATED);
+
+/**
+ * Represents a function template test.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since 1.12 (to be removed in 2.0)
+ */
+class Twig_Test_Function extends Twig_Test
+{
+    protected $function;
+
+    public function __construct($function, array $options = array())
+    {
+        $options['callable'] = $function;
+
+        parent::__construct($options);
+
+        $this->function = $function;
+    }
+
+    public function compile()
+    {
+        return $this->function;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Test/IntegrationTestCase.php b/vendor/twig/twig/lib/Twig/Test/IntegrationTestCase.php
new file mode 100644
index 000000000..45ca7dc49
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Test/IntegrationTestCase.php
@@ -0,0 +1,232 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Integration test helper.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Karma Dordrak <drak@zikula.org>
+ */
+abstract class Twig_Test_IntegrationTestCase extends PHPUnit_Framework_TestCase
+{
+    /**
+     * @return string
+     */
+    abstract protected function getFixturesDir();
+
+    /**
+     * @return Twig_ExtensionInterface[]
+     */
+    protected function getExtensions()
+    {
+        return array();
+    }
+
+    /**
+     * @return Twig_SimpleFilter[]
+     */
+    protected function getTwigFilters()
+    {
+        return array();
+    }
+
+    /**
+     * @return Twig_SimpleFunction[]
+     */
+    protected function getTwigFunctions()
+    {
+        return array();
+    }
+
+    /**
+     * @return Twig_SimpleTest[]
+     */
+    protected function getTwigTests()
+    {
+        return array();
+    }
+
+    /**
+     * @dataProvider getTests
+     */
+    public function testIntegration($file, $message, $condition, $templates, $exception, $outputs)
+    {
+        $this->doIntegrationTest($file, $message, $condition, $templates, $exception, $outputs);
+    }
+
+    /**
+     * @dataProvider getLegacyTests
+     * @group legacy
+     */
+    public function testLegacyIntegration($file, $message, $condition, $templates, $exception, $outputs)
+    {
+        $this->doIntegrationTest($file, $message, $condition, $templates, $exception, $outputs);
+    }
+
+    public function getTests($name, $legacyTests = false)
+    {
+        $fixturesDir = realpath($this->getFixturesDir());
+        $tests = array();
+
+        foreach (new RecursiveIteratorIterator(new RecursiveDirectoryIterator($fixturesDir), RecursiveIteratorIterator::LEAVES_ONLY) as $file) {
+            if (!preg_match('/\.test$/', $file)) {
+                continue;
+            }
+
+            if ($legacyTests xor false !== strpos($file->getRealpath(), '.legacy.test')) {
+                continue;
+            }
+
+            $test = file_get_contents($file->getRealpath());
+
+            if (preg_match('/--TEST--\s*(.*?)\s*(?:--CONDITION--\s*(.*))?\s*((?:--TEMPLATE(?:\(.*?\))?--(?:.*?))+)\s*(?:--DATA--\s*(.*))?\s*--EXCEPTION--\s*(.*)/sx', $test, $match)) {
+                $message = $match[1];
+                $condition = $match[2];
+                $templates = self::parseTemplates($match[3]);
+                $exception = $match[5];
+                $outputs = array(array(null, $match[4], null, ''));
+            } elseif (preg_match('/--TEST--\s*(.*?)\s*(?:--CONDITION--\s*(.*))?\s*((?:--TEMPLATE(?:\(.*?\))?--(?:.*?))+)--DATA--.*?--EXPECT--.*/s', $test, $match)) {
+                $message = $match[1];
+                $condition = $match[2];
+                $templates = self::parseTemplates($match[3]);
+                $exception = false;
+                preg_match_all('/--DATA--(.*?)(?:--CONFIG--(.*?))?--EXPECT--(.*?)(?=\-\-DATA\-\-|$)/s', $test, $outputs, PREG_SET_ORDER);
+            } else {
+                throw new InvalidArgumentException(sprintf('Test "%s" is not valid.', str_replace($fixturesDir.'/', '', $file)));
+            }
+
+            $tests[] = array(str_replace($fixturesDir.'/', '', $file), $message, $condition, $templates, $exception, $outputs);
+        }
+
+        if ($legacyTests && empty($tests)) {
+            // add a dummy test to avoid a PHPUnit message
+            return array(array('not', '-', '', array(), '', array()));
+        }
+
+        return $tests;
+    }
+
+    public function getLegacyTests()
+    {
+        return $this->getTests('testLegacyIntegration', true);
+    }
+
+    protected function doIntegrationTest($file, $message, $condition, $templates, $exception, $outputs)
+    {
+        if ($condition) {
+            eval('$ret = '.$condition.';');
+            if (!$ret) {
+                $this->markTestSkipped($condition);
+            }
+        }
+
+        $loader = new Twig_Loader_Array($templates);
+
+        foreach ($outputs as $i => $match) {
+            $config = array_merge(array(
+                'cache' => false,
+                'strict_variables' => true,
+            ), $match[2] ? eval($match[2].';') : array());
+            $twig = new Twig_Environment($loader, $config);
+            $twig->addGlobal('global', 'global');
+            foreach ($this->getExtensions() as $extension) {
+                $twig->addExtension($extension);
+            }
+
+            foreach ($this->getTwigFilters() as $filter) {
+                $twig->addFilter($filter);
+            }
+
+            foreach ($this->getTwigTests() as $test) {
+                $twig->addTest($test);
+            }
+
+            foreach ($this->getTwigFunctions() as $function) {
+                $twig->addFunction($function);
+            }
+
+            // avoid using the same PHP class name for different cases
+            // only for PHP 5.2+
+            if (PHP_VERSION_ID >= 50300) {
+                $p = new ReflectionProperty($twig, 'templateClassPrefix');
+                $p->setAccessible(true);
+                $p->setValue($twig, '__TwigTemplate_'.hash('sha256', uniqid(mt_rand(), true), false).'_');
+            }
+
+            try {
+                $template = $twig->loadTemplate('index.twig');
+            } catch (Exception $e) {
+                if (false !== $exception) {
+                    $message = $e->getMessage();
+                    $this->assertSame(trim($exception), trim(sprintf('%s: %s', get_class($e), $message)));
+                    $this->assertSame('.', substr($message, strlen($message) - 1), $message, 'Exception message must end with a dot.');
+
+                    return;
+                }
+
+                if ($e instanceof Twig_Error_Syntax) {
+                    $e->setTemplateFile($file);
+
+                    throw $e;
+                }
+
+                throw new Twig_Error(sprintf('%s: %s', get_class($e), $e->getMessage()), -1, $file, $e);
+            }
+
+            try {
+                $output = trim($template->render(eval($match[1].';')), "\n ");
+            } catch (Exception $e) {
+                if (false !== $exception) {
+                    $this->assertSame(trim($exception), trim(sprintf('%s: %s', get_class($e), $e->getMessage())));
+
+                    return;
+                }
+
+                if ($e instanceof Twig_Error_Syntax) {
+                    $e->setTemplateFile($file);
+                } else {
+                    $e = new Twig_Error(sprintf('%s: %s', get_class($e), $e->getMessage()), -1, $file, $e);
+                }
+
+                $output = trim(sprintf('%s: %s', get_class($e), $e->getMessage()));
+            }
+
+            if (false !== $exception) {
+                list($class) = explode(':', $exception);
+                $this->assertThat(null, new PHPUnit_Framework_Constraint_Exception($class));
+            }
+
+            $expected = trim($match[3], "\n ");
+
+            if ($expected !== $output) {
+                printf("Compiled templates that failed on case %d:\n", $i + 1);
+
+                foreach (array_keys($templates) as $name) {
+                    echo "Template: $name\n";
+                    $source = $loader->getSource($name);
+                    echo $twig->compile($twig->parse($twig->tokenize($source, $name)));
+                }
+            }
+            $this->assertEquals($expected, $output, $message.' (in '.$file.')');
+        }
+    }
+
+    protected static function parseTemplates($test)
+    {
+        $templates = array();
+        preg_match_all('/--TEMPLATE(?:\((.*?)\))?--(.*?)(?=\-\-TEMPLATE|$)/s', $test, $matches, PREG_SET_ORDER);
+        foreach ($matches as $match) {
+            $templates[($match[1] ? $match[1] : 'index.twig')] = $match[2];
+        }
+
+        return $templates;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Test/Method.php b/vendor/twig/twig/lib/Twig/Test/Method.php
new file mode 100644
index 000000000..277998649
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Test/Method.php
@@ -0,0 +1,40 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+@trigger_error('The Twig_Test_Method class is deprecated since version 1.12 and will be removed in 2.0. Use Twig_SimpleTest instead.', E_USER_DEPRECATED);
+
+/**
+ * Represents a method template test.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since 1.12 (to be removed in 2.0)
+ */
+class Twig_Test_Method extends Twig_Test
+{
+    protected $extension;
+    protected $method;
+
+    public function __construct(Twig_ExtensionInterface $extension, $method, array $options = array())
+    {
+        $options['callable'] = array($extension, $method);
+
+        parent::__construct($options);
+
+        $this->extension = $extension;
+        $this->method = $method;
+    }
+
+    public function compile()
+    {
+        return sprintf('$this->env->getExtension(\'%s\')->%s', $this->extension->getName(), $this->method);
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Test/Node.php b/vendor/twig/twig/lib/Twig/Test/Node.php
new file mode 100644
index 000000000..baef49cce
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Test/Node.php
@@ -0,0 +1,40 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+@trigger_error('The Twig_Test_Node class is deprecated since version 1.12 and will be removed in 2.0.', E_USER_DEPRECATED);
+
+/**
+ * Represents a template test as a Node.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since 1.12 (to be removed in 2.0)
+ */
+class Twig_Test_Node extends Twig_Test
+{
+    protected $class;
+
+    public function __construct($class, array $options = array())
+    {
+        parent::__construct($options);
+
+        $this->class = $class;
+    }
+
+    public function getClass()
+    {
+        return $this->class;
+    }
+
+    public function compile()
+    {
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Test/NodeTestCase.php b/vendor/twig/twig/lib/Twig/Test/NodeTestCase.php
new file mode 100644
index 000000000..e591c1d52
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Test/NodeTestCase.php
@@ -0,0 +1,64 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+abstract class Twig_Test_NodeTestCase extends PHPUnit_Framework_TestCase
+{
+    abstract public function getTests();
+
+    /**
+     * @dataProvider getTests
+     */
+    public function testCompile($node, $source, $environment = null, $isPattern = false)
+    {
+        $this->assertNodeCompilation($source, $node, $environment, $isPattern);
+    }
+
+    public function assertNodeCompilation($source, Twig_Node $node, Twig_Environment $environment = null, $isPattern = false)
+    {
+        $compiler = $this->getCompiler($environment);
+        $compiler->compile($node);
+
+        if ($isPattern) {
+            $this->assertStringMatchesFormat($source, trim($compiler->getSource()));
+        } else {
+            $this->assertEquals($source, trim($compiler->getSource()));
+        }
+    }
+
+    protected function getCompiler(Twig_Environment $environment = null)
+    {
+        return new Twig_Compiler(null === $environment ? $this->getEnvironment() : $environment);
+    }
+
+    protected function getEnvironment()
+    {
+        return new Twig_Environment(new Twig_Loader_Array(array()));
+    }
+
+    protected function getVariableGetter($name, $line = false)
+    {
+        $line = $line > 0 ? "// line {$line}\n" : '';
+
+        if (PHP_VERSION_ID >= 50400) {
+            return sprintf('%s(isset($context["%s"]) ? $context["%s"] : null)', $line, $name, $name);
+        }
+
+        return sprintf('%s$this->getContext($context, "%s")', $line, $name);
+    }
+
+    protected function getAttributeGetter()
+    {
+        if (function_exists('twig_template_get_attributes')) {
+            return 'twig_template_get_attributes($this, ';
+        }
+
+        return '$this->getAttribute(';
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/TestCallableInterface.php b/vendor/twig/twig/lib/Twig/TestCallableInterface.php
new file mode 100644
index 000000000..98d345785
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TestCallableInterface.php
@@ -0,0 +1,22 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2012 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a callable template test.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since 1.12 (to be removed in 2.0)
+ */
+interface Twig_TestCallableInterface
+{
+    public function getCallable();
+}
diff --git a/vendor/twig/twig/lib/Twig/TestInterface.php b/vendor/twig/twig/lib/Twig/TestInterface.php
new file mode 100644
index 000000000..2fa821ca3
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TestInterface.php
@@ -0,0 +1,27 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a template test.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since 1.12 (to be removed in 2.0)
+ */
+interface Twig_TestInterface
+{
+    /**
+     * Compiles a test.
+     *
+     * @return string The PHP code for the test
+     */
+    public function compile();
+}
diff --git a/vendor/twig/twig/lib/Twig/Token.php b/vendor/twig/twig/lib/Twig/Token.php
new file mode 100644
index 000000000..a0a029bcd
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Token.php
@@ -0,0 +1,216 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a Token.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Token
+{
+    protected $value;
+    protected $type;
+    protected $lineno;
+
+    const EOF_TYPE = -1;
+    const TEXT_TYPE = 0;
+    const BLOCK_START_TYPE = 1;
+    const VAR_START_TYPE = 2;
+    const BLOCK_END_TYPE = 3;
+    const VAR_END_TYPE = 4;
+    const NAME_TYPE = 5;
+    const NUMBER_TYPE = 6;
+    const STRING_TYPE = 7;
+    const OPERATOR_TYPE = 8;
+    const PUNCTUATION_TYPE = 9;
+    const INTERPOLATION_START_TYPE = 10;
+    const INTERPOLATION_END_TYPE = 11;
+
+    /**
+     * Constructor.
+     *
+     * @param int    $type   The type of the token
+     * @param string $value  The token value
+     * @param int    $lineno The line position in the source
+     */
+    public function __construct($type, $value, $lineno)
+    {
+        $this->type = $type;
+        $this->value = $value;
+        $this->lineno = $lineno;
+    }
+
+    /**
+     * Returns a string representation of the token.
+     *
+     * @return string A string representation of the token
+     */
+    public function __toString()
+    {
+        return sprintf('%s(%s)', self::typeToString($this->type, true), $this->value);
+    }
+
+    /**
+     * Tests the current token for a type and/or a value.
+     *
+     * Parameters may be:
+     * * just type
+     * * type and value (or array of possible values)
+     * * just value (or array of possible values) (NAME_TYPE is used as type)
+     *
+     * @param array|int         $type   The type to test
+     * @param array|string|null $values The token value
+     *
+     * @return bool
+     */
+    public function test($type, $values = null)
+    {
+        if (null === $values && !is_int($type)) {
+            $values = $type;
+            $type = self::NAME_TYPE;
+        }
+
+        return ($this->type === $type) && (
+            null === $values ||
+            (is_array($values) && in_array($this->value, $values)) ||
+            $this->value == $values
+        );
+    }
+
+    /**
+     * Gets the line.
+     *
+     * @return int The source line
+     */
+    public function getLine()
+    {
+        return $this->lineno;
+    }
+
+    /**
+     * Gets the token type.
+     *
+     * @return int The token type
+     */
+    public function getType()
+    {
+        return $this->type;
+    }
+
+    /**
+     * Gets the token value.
+     *
+     * @return string The token value
+     */
+    public function getValue()
+    {
+        return $this->value;
+    }
+
+    /**
+     * Returns the constant representation (internal) of a given type.
+     *
+     * @param int  $type  The type as an integer
+     * @param bool $short Whether to return a short representation or not
+     *
+     * @return string The string representation
+     */
+    public static function typeToString($type, $short = false)
+    {
+        switch ($type) {
+            case self::EOF_TYPE:
+                $name = 'EOF_TYPE';
+                break;
+            case self::TEXT_TYPE:
+                $name = 'TEXT_TYPE';
+                break;
+            case self::BLOCK_START_TYPE:
+                $name = 'BLOCK_START_TYPE';
+                break;
+            case self::VAR_START_TYPE:
+                $name = 'VAR_START_TYPE';
+                break;
+            case self::BLOCK_END_TYPE:
+                $name = 'BLOCK_END_TYPE';
+                break;
+            case self::VAR_END_TYPE:
+                $name = 'VAR_END_TYPE';
+                break;
+            case self::NAME_TYPE:
+                $name = 'NAME_TYPE';
+                break;
+            case self::NUMBER_TYPE:
+                $name = 'NUMBER_TYPE';
+                break;
+            case self::STRING_TYPE:
+                $name = 'STRING_TYPE';
+                break;
+            case self::OPERATOR_TYPE:
+                $name = 'OPERATOR_TYPE';
+                break;
+            case self::PUNCTUATION_TYPE:
+                $name = 'PUNCTUATION_TYPE';
+                break;
+            case self::INTERPOLATION_START_TYPE:
+                $name = 'INTERPOLATION_START_TYPE';
+                break;
+            case self::INTERPOLATION_END_TYPE:
+                $name = 'INTERPOLATION_END_TYPE';
+                break;
+            default:
+                throw new LogicException(sprintf('Token of type "%s" does not exist.', $type));
+        }
+
+        return $short ? $name : 'Twig_Token::'.$name;
+    }
+
+    /**
+     * Returns the english representation of a given type.
+     *
+     * @param int $type The type as an integer
+     *
+     * @return string The string representation
+     */
+    public static function typeToEnglish($type)
+    {
+        switch ($type) {
+            case self::EOF_TYPE:
+                return 'end of template';
+            case self::TEXT_TYPE:
+                return 'text';
+            case self::BLOCK_START_TYPE:
+                return 'begin of statement block';
+            case self::VAR_START_TYPE:
+                return 'begin of print statement';
+            case self::BLOCK_END_TYPE:
+                return 'end of statement block';
+            case self::VAR_END_TYPE:
+                return 'end of print statement';
+            case self::NAME_TYPE:
+                return 'name';
+            case self::NUMBER_TYPE:
+                return 'number';
+            case self::STRING_TYPE:
+                return 'string';
+            case self::OPERATOR_TYPE:
+                return 'operator';
+            case self::PUNCTUATION_TYPE:
+                return 'punctuation';
+            case self::INTERPOLATION_START_TYPE:
+                return 'begin of string interpolation';
+            case self::INTERPOLATION_END_TYPE:
+                return 'end of string interpolation';
+            default:
+                throw new LogicException(sprintf('Token of type "%s" does not exist.', $type));
+        }
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/TokenParser.php b/vendor/twig/twig/lib/Twig/TokenParser.php
new file mode 100644
index 000000000..fa9b6d867
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenParser.php
@@ -0,0 +1,33 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Base class for all token parsers.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+abstract class Twig_TokenParser implements Twig_TokenParserInterface
+{
+    /**
+     * @var Twig_Parser
+     */
+    protected $parser;
+
+    /**
+     * Sets the parser associated with this token parser.
+     *
+     * @param Twig_Parser $parser A Twig_Parser instance
+     */
+    public function setParser(Twig_Parser $parser)
+    {
+        $this->parser = $parser;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/TokenParser/AutoEscape.php b/vendor/twig/twig/lib/Twig/TokenParser/AutoEscape.php
new file mode 100644
index 000000000..fd34cafe2
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenParser/AutoEscape.php
@@ -0,0 +1,79 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Marks a section of a template to be escaped or not.
+ *
+ * <pre>
+ * {% autoescape true %}
+ *   Everything will be automatically escaped in this block
+ * {% endautoescape %}
+ *
+ * {% autoescape false %}
+ *   Everything will be outputed as is in this block
+ * {% endautoescape %}
+ *
+ * {% autoescape true js %}
+ *   Everything will be automatically escaped in this block
+ *   using the js escaping strategy
+ * {% endautoescape %}
+ * </pre>
+ */
+class Twig_TokenParser_AutoEscape extends Twig_TokenParser
+{
+    public function parse(Twig_Token $token)
+    {
+        $lineno = $token->getLine();
+        $stream = $this->parser->getStream();
+
+        if ($stream->test(Twig_Token::BLOCK_END_TYPE)) {
+            $value = 'html';
+        } else {
+            $expr = $this->parser->getExpressionParser()->parseExpression();
+            if (!$expr instanceof Twig_Node_Expression_Constant) {
+                throw new Twig_Error_Syntax('An escaping strategy must be a string or a bool.', $stream->getCurrent()->getLine(), $stream->getFilename());
+            }
+            $value = $expr->getAttribute('value');
+
+            $compat = true === $value || false === $value;
+
+            if (true === $value) {
+                $value = 'html';
+            }
+
+            if ($compat && $stream->test(Twig_Token::NAME_TYPE)) {
+                @trigger_error('Using the autoescape tag with "true" or "false" before the strategy name is deprecated since version 1.21.', E_USER_DEPRECATED);
+
+                if (false === $value) {
+                    throw new Twig_Error_Syntax('Unexpected escaping strategy as you set autoescaping to false.', $stream->getCurrent()->getLine(), $stream->getFilename());
+                }
+
+                $value = $stream->next()->getValue();
+            }
+        }
+
+        $stream->expect(Twig_Token::BLOCK_END_TYPE);
+        $body = $this->parser->subparse(array($this, 'decideBlockEnd'), true);
+        $stream->expect(Twig_Token::BLOCK_END_TYPE);
+
+        return new Twig_Node_AutoEscape($value, $body, $lineno, $this->getTag());
+    }
+
+    public function decideBlockEnd(Twig_Token $token)
+    {
+        return $token->test('endautoescape');
+    }
+
+    public function getTag()
+    {
+        return 'autoescape';
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/TokenParser/Block.php b/vendor/twig/twig/lib/Twig/TokenParser/Block.php
new file mode 100644
index 000000000..4ffafbe71
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenParser/Block.php
@@ -0,0 +1,69 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Marks a section of a template as being reusable.
+ *
+ * <pre>
+ *  {% block head %}
+ *    <link rel="stylesheet" href="style.css" />
+ *    <title>{% block title %}{% endblock %} - My Webpage</title>
+ *  {% endblock %}
+ * </pre>
+ */
+class Twig_TokenParser_Block extends Twig_TokenParser
+{
+    public function parse(Twig_Token $token)
+    {
+        $lineno = $token->getLine();
+        $stream = $this->parser->getStream();
+        $name = $stream->expect(Twig_Token::NAME_TYPE)->getValue();
+        if ($this->parser->hasBlock($name)) {
+            throw new Twig_Error_Syntax(sprintf("The block '%s' has already been defined line %d.", $name, $this->parser->getBlock($name)->getLine()), $stream->getCurrent()->getLine(), $stream->getFilename());
+        }
+        $this->parser->setBlock($name, $block = new Twig_Node_Block($name, new Twig_Node(array()), $lineno));
+        $this->parser->pushLocalScope();
+        $this->parser->pushBlockStack($name);
+
+        if ($stream->nextIf(Twig_Token::BLOCK_END_TYPE)) {
+            $body = $this->parser->subparse(array($this, 'decideBlockEnd'), true);
+            if ($token = $stream->nextIf(Twig_Token::NAME_TYPE)) {
+                $value = $token->getValue();
+
+                if ($value != $name) {
+                    throw new Twig_Error_Syntax(sprintf('Expected endblock for block "%s" (but "%s" given).', $name, $value), $stream->getCurrent()->getLine(), $stream->getFilename());
+                }
+            }
+        } else {
+            $body = new Twig_Node(array(
+                new Twig_Node_Print($this->parser->getExpressionParser()->parseExpression(), $lineno),
+            ));
+        }
+        $stream->expect(Twig_Token::BLOCK_END_TYPE);
+
+        $block->setNode('body', $body);
+        $this->parser->popBlockStack();
+        $this->parser->popLocalScope();
+
+        return new Twig_Node_BlockReference($name, $lineno, $this->getTag());
+    }
+
+    public function decideBlockEnd(Twig_Token $token)
+    {
+        return $token->test('endblock');
+    }
+
+    public function getTag()
+    {
+        return 'block';
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/TokenParser/Do.php b/vendor/twig/twig/lib/Twig/TokenParser/Do.php
new file mode 100644
index 000000000..7adb5a081
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenParser/Do.php
@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2011 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Evaluates an expression, discarding the returned value.
+ */
+class Twig_TokenParser_Do extends Twig_TokenParser
+{
+    public function parse(Twig_Token $token)
+    {
+        $expr = $this->parser->getExpressionParser()->parseExpression();
+
+        $this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
+
+        return new Twig_Node_Do($expr, $token->getLine(), $this->getTag());
+    }
+
+    public function getTag()
+    {
+        return 'do';
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/TokenParser/Embed.php b/vendor/twig/twig/lib/Twig/TokenParser/Embed.php
new file mode 100644
index 000000000..e685b955d
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenParser/Embed.php
@@ -0,0 +1,54 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2012 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Embeds a template.
+ */
+class Twig_TokenParser_Embed extends Twig_TokenParser_Include
+{
+    public function parse(Twig_Token $token)
+    {
+        $stream = $this->parser->getStream();
+
+        $parent = $this->parser->getExpressionParser()->parseExpression();
+
+        list($variables, $only, $ignoreMissing) = $this->parseArguments();
+
+        // inject a fake parent to make the parent() function work
+        $stream->injectTokens(array(
+            new Twig_Token(Twig_Token::BLOCK_START_TYPE, '', $token->getLine()),
+            new Twig_Token(Twig_Token::NAME_TYPE, 'extends', $token->getLine()),
+            new Twig_Token(Twig_Token::STRING_TYPE, '__parent__', $token->getLine()),
+            new Twig_Token(Twig_Token::BLOCK_END_TYPE, '', $token->getLine()),
+        ));
+
+        $module = $this->parser->parse($stream, array($this, 'decideBlockEnd'), true);
+
+        // override the parent with the correct one
+        $module->setNode('parent', $parent);
+
+        $this->parser->embedTemplate($module);
+
+        $stream->expect(Twig_Token::BLOCK_END_TYPE);
+
+        return new Twig_Node_Embed($module->getAttribute('filename'), $module->getAttribute('index'), $variables, $only, $ignoreMissing, $token->getLine(), $this->getTag());
+    }
+
+    public function decideBlockEnd(Twig_Token $token)
+    {
+        return $token->test('endembed');
+    }
+
+    public function getTag()
+    {
+        return 'embed';
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/TokenParser/Extends.php b/vendor/twig/twig/lib/Twig/TokenParser/Extends.php
new file mode 100644
index 000000000..510417ad1
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenParser/Extends.php
@@ -0,0 +1,40 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Extends a template by another one.
+ *
+ * <pre>
+ *  {% extends "base.html" %}
+ * </pre>
+ */
+class Twig_TokenParser_Extends extends Twig_TokenParser
+{
+    public function parse(Twig_Token $token)
+    {
+        if (!$this->parser->isMainScope()) {
+            throw new Twig_Error_Syntax('Cannot extend from a block.', $token->getLine(), $this->parser->getFilename());
+        }
+
+        if (null !== $this->parser->getParent()) {
+            throw new Twig_Error_Syntax('Multiple extends tags are forbidden.', $token->getLine(), $this->parser->getFilename());
+        }
+        $this->parser->setParent($this->parser->getExpressionParser()->parseExpression());
+
+        $this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
+    }
+
+    public function getTag()
+    {
+        return 'extends';
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/TokenParser/Filter.php b/vendor/twig/twig/lib/Twig/TokenParser/Filter.php
new file mode 100644
index 000000000..b20dd5b32
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenParser/Filter.php
@@ -0,0 +1,49 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Filters a section of a template by applying filters.
+ *
+ * <pre>
+ * {% filter upper %}
+ *  This text becomes uppercase
+ * {% endfilter %}
+ * </pre>
+ */
+class Twig_TokenParser_Filter extends Twig_TokenParser
+{
+    public function parse(Twig_Token $token)
+    {
+        $name = $this->parser->getVarName();
+        $ref = new Twig_Node_Expression_BlockReference(new Twig_Node_Expression_Constant($name, $token->getLine()), true, $token->getLine(), $this->getTag());
+
+        $filter = $this->parser->getExpressionParser()->parseFilterExpressionRaw($ref, $this->getTag());
+        $this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
+
+        $body = $this->parser->subparse(array($this, 'decideBlockEnd'), true);
+        $this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
+
+        $block = new Twig_Node_Block($name, $body, $token->getLine());
+        $this->parser->setBlock($name, $block);
+
+        return new Twig_Node_Print($filter, $token->getLine(), $this->getTag());
+    }
+
+    public function decideBlockEnd(Twig_Token $token)
+    {
+        return $token->test('endfilter');
+    }
+
+    public function getTag()
+    {
+        return 'filter';
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/TokenParser/Flush.php b/vendor/twig/twig/lib/Twig/TokenParser/Flush.php
new file mode 100644
index 000000000..f9ce7c3b1
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenParser/Flush.php
@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2011 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Flushes the output to the client.
+ *
+ * @see flush()
+ */
+class Twig_TokenParser_Flush extends Twig_TokenParser
+{
+    public function parse(Twig_Token $token)
+    {
+        $this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
+
+        return new Twig_Node_Flush($token->getLine(), $this->getTag());
+    }
+
+    public function getTag()
+    {
+        return 'flush';
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/TokenParser/For.php b/vendor/twig/twig/lib/Twig/TokenParser/For.php
new file mode 100644
index 000000000..3fac51119
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenParser/For.php
@@ -0,0 +1,123 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Loops over each item of a sequence.
+ *
+ * <pre>
+ * <ul>
+ *  {% for user in users %}
+ *    <li>{{ user.username|e }}</li>
+ *  {% endfor %}
+ * </ul>
+ * </pre>
+ */
+class Twig_TokenParser_For extends Twig_TokenParser
+{
+    public function parse(Twig_Token $token)
+    {
+        $lineno = $token->getLine();
+        $stream = $this->parser->getStream();
+        $targets = $this->parser->getExpressionParser()->parseAssignmentExpression();
+        $stream->expect(Twig_Token::OPERATOR_TYPE, 'in');
+        $seq = $this->parser->getExpressionParser()->parseExpression();
+
+        $ifexpr = null;
+        if ($stream->nextIf(Twig_Token::NAME_TYPE, 'if')) {
+            $ifexpr = $this->parser->getExpressionParser()->parseExpression();
+        }
+
+        $stream->expect(Twig_Token::BLOCK_END_TYPE);
+        $body = $this->parser->subparse(array($this, 'decideForFork'));
+        if ($stream->next()->getValue() == 'else') {
+            $stream->expect(Twig_Token::BLOCK_END_TYPE);
+            $else = $this->parser->subparse(array($this, 'decideForEnd'), true);
+        } else {
+            $else = null;
+        }
+        $stream->expect(Twig_Token::BLOCK_END_TYPE);
+
+        if (count($targets) > 1) {
+            $keyTarget = $targets->getNode(0);
+            $keyTarget = new Twig_Node_Expression_AssignName($keyTarget->getAttribute('name'), $keyTarget->getLine());
+            $valueTarget = $targets->getNode(1);
+            $valueTarget = new Twig_Node_Expression_AssignName($valueTarget->getAttribute('name'), $valueTarget->getLine());
+        } else {
+            $keyTarget = new Twig_Node_Expression_AssignName('_key', $lineno);
+            $valueTarget = $targets->getNode(0);
+            $valueTarget = new Twig_Node_Expression_AssignName($valueTarget->getAttribute('name'), $valueTarget->getLine());
+        }
+
+        if ($ifexpr) {
+            $this->checkLoopUsageCondition($stream, $ifexpr);
+            $this->checkLoopUsageBody($stream, $body);
+        }
+
+        return new Twig_Node_For($keyTarget, $valueTarget, $seq, $ifexpr, $body, $else, $lineno, $this->getTag());
+    }
+
+    public function decideForFork(Twig_Token $token)
+    {
+        return $token->test(array('else', 'endfor'));
+    }
+
+    public function decideForEnd(Twig_Token $token)
+    {
+        return $token->test('endfor');
+    }
+
+    // the loop variable cannot be used in the condition
+    protected function checkLoopUsageCondition(Twig_TokenStream $stream, Twig_NodeInterface $node)
+    {
+        if ($node instanceof Twig_Node_Expression_GetAttr && $node->getNode('node') instanceof Twig_Node_Expression_Name && 'loop' == $node->getNode('node')->getAttribute('name')) {
+            throw new Twig_Error_Syntax('The "loop" variable cannot be used in a looping condition.', $node->getLine(), $stream->getFilename());
+        }
+
+        foreach ($node as $n) {
+            if (!$n) {
+                continue;
+            }
+
+            $this->checkLoopUsageCondition($stream, $n);
+        }
+    }
+
+    // check usage of non-defined loop-items
+    // it does not catch all problems (for instance when a for is included into another or when the variable is used in an include)
+    protected function checkLoopUsageBody(Twig_TokenStream $stream, Twig_NodeInterface $node)
+    {
+        if ($node instanceof Twig_Node_Expression_GetAttr && $node->getNode('node') instanceof Twig_Node_Expression_Name && 'loop' == $node->getNode('node')->getAttribute('name')) {
+            $attribute = $node->getNode('attribute');
+            if ($attribute instanceof Twig_Node_Expression_Constant && in_array($attribute->getAttribute('value'), array('length', 'revindex0', 'revindex', 'last'))) {
+                throw new Twig_Error_Syntax(sprintf('The "loop.%s" variable is not defined when looping with a condition.', $attribute->getAttribute('value')), $node->getLine(), $stream->getFilename());
+            }
+        }
+
+        // should check for parent.loop.XXX usage
+        if ($node instanceof Twig_Node_For) {
+            return;
+        }
+
+        foreach ($node as $n) {
+            if (!$n) {
+                continue;
+            }
+
+            $this->checkLoopUsageBody($stream, $n);
+        }
+    }
+
+    public function getTag()
+    {
+        return 'for';
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/TokenParser/From.php b/vendor/twig/twig/lib/Twig/TokenParser/From.php
new file mode 100644
index 000000000..f7547ebe3
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenParser/From.php
@@ -0,0 +1,62 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Imports macros.
+ *
+ * <pre>
+ *   {% from 'forms.html' import forms %}
+ * </pre>
+ */
+class Twig_TokenParser_From extends Twig_TokenParser
+{
+    public function parse(Twig_Token $token)
+    {
+        $macro = $this->parser->getExpressionParser()->parseExpression();
+        $stream = $this->parser->getStream();
+        $stream->expect('import');
+
+        $targets = array();
+        do {
+            $name = $stream->expect(Twig_Token::NAME_TYPE)->getValue();
+
+            $alias = $name;
+            if ($stream->nextIf('as')) {
+                $alias = $stream->expect(Twig_Token::NAME_TYPE)->getValue();
+            }
+
+            $targets[$name] = $alias;
+
+            if (!$stream->nextIf(Twig_Token::PUNCTUATION_TYPE, ',')) {
+                break;
+            }
+        } while (true);
+
+        $stream->expect(Twig_Token::BLOCK_END_TYPE);
+
+        $node = new Twig_Node_Import($macro, new Twig_Node_Expression_AssignName($this->parser->getVarName(), $token->getLine()), $token->getLine(), $this->getTag());
+
+        foreach ($targets as $name => $alias) {
+            if ($this->parser->isReservedMacroName($name)) {
+                throw new Twig_Error_Syntax(sprintf('"%s" cannot be an imported macro as it is a reserved keyword.', $name), $token->getLine(), $stream->getFilename());
+            }
+
+            $this->parser->addImportedSymbol('function', $alias, 'get'.$name, $node->getNode('var'));
+        }
+
+        return $node;
+    }
+
+    public function getTag()
+    {
+        return 'from';
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/TokenParser/If.php b/vendor/twig/twig/lib/Twig/TokenParser/If.php
new file mode 100644
index 000000000..91c060498
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenParser/If.php
@@ -0,0 +1,82 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Tests a condition.
+ *
+ * <pre>
+ * {% if users %}
+ *  <ul>
+ *    {% for user in users %}
+ *      <li>{{ user.username|e }}</li>
+ *    {% endfor %}
+ *  </ul>
+ * {% endif %}
+ * </pre>
+ */
+class Twig_TokenParser_If extends Twig_TokenParser
+{
+    public function parse(Twig_Token $token)
+    {
+        $lineno = $token->getLine();
+        $expr = $this->parser->getExpressionParser()->parseExpression();
+        $stream = $this->parser->getStream();
+        $stream->expect(Twig_Token::BLOCK_END_TYPE);
+        $body = $this->parser->subparse(array($this, 'decideIfFork'));
+        $tests = array($expr, $body);
+        $else = null;
+
+        $end = false;
+        while (!$end) {
+            switch ($stream->next()->getValue()) {
+                case 'else':
+                    $stream->expect(Twig_Token::BLOCK_END_TYPE);
+                    $else = $this->parser->subparse(array($this, 'decideIfEnd'));
+                    break;
+
+                case 'elseif':
+                    $expr = $this->parser->getExpressionParser()->parseExpression();
+                    $stream->expect(Twig_Token::BLOCK_END_TYPE);
+                    $body = $this->parser->subparse(array($this, 'decideIfFork'));
+                    $tests[] = $expr;
+                    $tests[] = $body;
+                    break;
+
+                case 'endif':
+                    $end = true;
+                    break;
+
+                default:
+                    throw new Twig_Error_Syntax(sprintf('Unexpected end of template. Twig was looking for the following tags "else", "elseif", or "endif" to close the "if" block started at line %d).', $lineno), $stream->getCurrent()->getLine(), $stream->getFilename());
+            }
+        }
+
+        $stream->expect(Twig_Token::BLOCK_END_TYPE);
+
+        return new Twig_Node_If(new Twig_Node($tests), $else, $lineno, $this->getTag());
+    }
+
+    public function decideIfFork(Twig_Token $token)
+    {
+        return $token->test(array('elseif', 'else', 'endif'));
+    }
+
+    public function decideIfEnd(Twig_Token $token)
+    {
+        return $token->test(array('endif'));
+    }
+
+    public function getTag()
+    {
+        return 'if';
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/TokenParser/Import.php b/vendor/twig/twig/lib/Twig/TokenParser/Import.php
new file mode 100644
index 000000000..85c5c0364
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenParser/Import.php
@@ -0,0 +1,37 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Imports macros.
+ *
+ * <pre>
+ *   {% import 'forms.html' as forms %}
+ * </pre>
+ */
+class Twig_TokenParser_Import extends Twig_TokenParser
+{
+    public function parse(Twig_Token $token)
+    {
+        $macro = $this->parser->getExpressionParser()->parseExpression();
+        $this->parser->getStream()->expect('as');
+        $var = new Twig_Node_Expression_AssignName($this->parser->getStream()->expect(Twig_Token::NAME_TYPE)->getValue(), $token->getLine());
+        $this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
+
+        $this->parser->addImportedSymbol('template', $var->getAttribute('name'));
+
+        return new Twig_Node_Import($macro, $var, $token->getLine(), $this->getTag());
+    }
+
+    public function getTag()
+    {
+        return 'import';
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/TokenParser/Include.php b/vendor/twig/twig/lib/Twig/TokenParser/Include.php
new file mode 100644
index 000000000..0e76dae3e
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenParser/Include.php
@@ -0,0 +1,63 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Includes a template.
+ *
+ * <pre>
+ *   {% include 'header.html' %}
+ *     Body
+ *   {% include 'footer.html' %}
+ * </pre>
+ */
+class Twig_TokenParser_Include extends Twig_TokenParser
+{
+    public function parse(Twig_Token $token)
+    {
+        $expr = $this->parser->getExpressionParser()->parseExpression();
+
+        list($variables, $only, $ignoreMissing) = $this->parseArguments();
+
+        return new Twig_Node_Include($expr, $variables, $only, $ignoreMissing, $token->getLine(), $this->getTag());
+    }
+
+    protected function parseArguments()
+    {
+        $stream = $this->parser->getStream();
+
+        $ignoreMissing = false;
+        if ($stream->nextIf(Twig_Token::NAME_TYPE, 'ignore')) {
+            $stream->expect(Twig_Token::NAME_TYPE, 'missing');
+
+            $ignoreMissing = true;
+        }
+
+        $variables = null;
+        if ($stream->nextIf(Twig_Token::NAME_TYPE, 'with')) {
+            $variables = $this->parser->getExpressionParser()->parseExpression();
+        }
+
+        $only = false;
+        if ($stream->nextIf(Twig_Token::NAME_TYPE, 'only')) {
+            $only = true;
+        }
+
+        $stream->expect(Twig_Token::BLOCK_END_TYPE);
+
+        return array($variables, $only, $ignoreMissing);
+    }
+
+    public function getTag()
+    {
+        return 'include';
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/TokenParser/Macro.php b/vendor/twig/twig/lib/Twig/TokenParser/Macro.php
new file mode 100644
index 000000000..8a7ebd6ed
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenParser/Macro.php
@@ -0,0 +1,56 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Defines a macro.
+ *
+ * <pre>
+ * {% macro input(name, value, type, size) %}
+ *    <input type="{{ type|default('text') }}" name="{{ name }}" value="{{ value|e }}" size="{{ size|default(20) }}" />
+ * {% endmacro %}
+ * </pre>
+ */
+class Twig_TokenParser_Macro extends Twig_TokenParser
+{
+    public function parse(Twig_Token $token)
+    {
+        $lineno = $token->getLine();
+        $stream = $this->parser->getStream();
+        $name = $stream->expect(Twig_Token::NAME_TYPE)->getValue();
+
+        $arguments = $this->parser->getExpressionParser()->parseArguments(true, true);
+
+        $stream->expect(Twig_Token::BLOCK_END_TYPE);
+        $this->parser->pushLocalScope();
+        $body = $this->parser->subparse(array($this, 'decideBlockEnd'), true);
+        if ($token = $stream->nextIf(Twig_Token::NAME_TYPE)) {
+            $value = $token->getValue();
+
+            if ($value != $name) {
+                throw new Twig_Error_Syntax(sprintf('Expected endmacro for macro "%s" (but "%s" given).', $name, $value), $stream->getCurrent()->getLine(), $stream->getFilename());
+            }
+        }
+        $this->parser->popLocalScope();
+        $stream->expect(Twig_Token::BLOCK_END_TYPE);
+
+        $this->parser->setMacro($name, new Twig_Node_Macro($name, new Twig_Node_Body(array($body)), $arguments, $lineno, $this->getTag()));
+    }
+
+    public function decideBlockEnd(Twig_Token $token)
+    {
+        return $token->test('endmacro');
+    }
+
+    public function getTag()
+    {
+        return 'macro';
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/TokenParser/Sandbox.php b/vendor/twig/twig/lib/Twig/TokenParser/Sandbox.php
new file mode 100644
index 000000000..1feadd084
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenParser/Sandbox.php
@@ -0,0 +1,56 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Marks a section of a template as untrusted code that must be evaluated in the sandbox mode.
+ *
+ * <pre>
+ * {% sandbox %}
+ *     {% include 'user.html' %}
+ * {% endsandbox %}
+ * </pre>
+ *
+ * @see http://www.twig-project.org/doc/api.html#sandbox-extension for details
+ */
+class Twig_TokenParser_Sandbox extends Twig_TokenParser
+{
+    public function parse(Twig_Token $token)
+    {
+        $this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
+        $body = $this->parser->subparse(array($this, 'decideBlockEnd'), true);
+        $this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
+
+        // in a sandbox tag, only include tags are allowed
+        if (!$body instanceof Twig_Node_Include) {
+            foreach ($body as $node) {
+                if ($node instanceof Twig_Node_Text && ctype_space($node->getAttribute('data'))) {
+                    continue;
+                }
+
+                if (!$node instanceof Twig_Node_Include) {
+                    throw new Twig_Error_Syntax('Only "include" tags are allowed within a "sandbox" section.', $node->getLine(), $this->parser->getFilename());
+                }
+            }
+        }
+
+        return new Twig_Node_Sandbox($body, $token->getLine(), $this->getTag());
+    }
+
+    public function decideBlockEnd(Twig_Token $token)
+    {
+        return $token->test('endsandbox');
+    }
+
+    public function getTag()
+    {
+        return 'sandbox';
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/TokenParser/Set.php b/vendor/twig/twig/lib/Twig/TokenParser/Set.php
new file mode 100644
index 000000000..5ca614bd6
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenParser/Set.php
@@ -0,0 +1,71 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Defines a variable.
+ *
+ * <pre>
+ *  {% set foo = 'foo' %}
+ *
+ *  {% set foo = [1, 2] %}
+ *
+ *  {% set foo = {'foo': 'bar'} %}
+ *
+ *  {% set foo = 'foo' ~ 'bar' %}
+ *
+ *  {% set foo, bar = 'foo', 'bar' %}
+ *
+ *  {% set foo %}Some content{% endset %}
+ * </pre>
+ */
+class Twig_TokenParser_Set extends Twig_TokenParser
+{
+    public function parse(Twig_Token $token)
+    {
+        $lineno = $token->getLine();
+        $stream = $this->parser->getStream();
+        $names = $this->parser->getExpressionParser()->parseAssignmentExpression();
+
+        $capture = false;
+        if ($stream->nextIf(Twig_Token::OPERATOR_TYPE, '=')) {
+            $values = $this->parser->getExpressionParser()->parseMultitargetExpression();
+
+            $stream->expect(Twig_Token::BLOCK_END_TYPE);
+
+            if (count($names) !== count($values)) {
+                throw new Twig_Error_Syntax('When using set, you must have the same number of variables and assignments.', $stream->getCurrent()->getLine(), $stream->getFilename());
+            }
+        } else {
+            $capture = true;
+
+            if (count($names) > 1) {
+                throw new Twig_Error_Syntax('When using set with a block, you cannot have a multi-target.', $stream->getCurrent()->getLine(), $stream->getFilename());
+            }
+
+            $stream->expect(Twig_Token::BLOCK_END_TYPE);
+
+            $values = $this->parser->subparse(array($this, 'decideBlockEnd'), true);
+            $stream->expect(Twig_Token::BLOCK_END_TYPE);
+        }
+
+        return new Twig_Node_Set($capture, $names, $values, $lineno, $this->getTag());
+    }
+
+    public function decideBlockEnd(Twig_Token $token)
+    {
+        return $token->test('endset');
+    }
+
+    public function getTag()
+    {
+        return 'set';
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/TokenParser/Spaceless.php b/vendor/twig/twig/lib/Twig/TokenParser/Spaceless.php
new file mode 100644
index 000000000..53d906d82
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenParser/Spaceless.php
@@ -0,0 +1,47 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Remove whitespaces between HTML tags.
+ *
+ * <pre>
+ * {% spaceless %}
+ *      <div>
+ *          <strong>foo</strong>
+ *      </div>
+ * {% endspaceless %}
+ *
+ * {# output will be <div><strong>foo</strong></div> #}
+ * </pre>
+ */
+class Twig_TokenParser_Spaceless extends Twig_TokenParser
+{
+    public function parse(Twig_Token $token)
+    {
+        $lineno = $token->getLine();
+
+        $this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
+        $body = $this->parser->subparse(array($this, 'decideSpacelessEnd'), true);
+        $this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
+
+        return new Twig_Node_Spaceless($body, $lineno, $this->getTag());
+    }
+
+    public function decideSpacelessEnd(Twig_Token $token)
+    {
+        return $token->test('endspaceless');
+    }
+
+    public function getTag()
+    {
+        return 'spaceless';
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/TokenParser/Use.php b/vendor/twig/twig/lib/Twig/TokenParser/Use.php
new file mode 100644
index 000000000..4945d03c0
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenParser/Use.php
@@ -0,0 +1,64 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2011 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Imports blocks defined in another template into the current template.
+ *
+ * <pre>
+ * {% extends "base.html" %}
+ *
+ * {% use "blocks.html" %}
+ *
+ * {% block title %}{% endblock %}
+ * {% block content %}{% endblock %}
+ * </pre>
+ *
+ * @see http://www.twig-project.org/doc/templates.html#horizontal-reuse for details.
+ */
+class Twig_TokenParser_Use extends Twig_TokenParser
+{
+    public function parse(Twig_Token $token)
+    {
+        $template = $this->parser->getExpressionParser()->parseExpression();
+        $stream = $this->parser->getStream();
+
+        if (!$template instanceof Twig_Node_Expression_Constant) {
+            throw new Twig_Error_Syntax('The template references in a "use" statement must be a string.', $stream->getCurrent()->getLine(), $stream->getFilename());
+        }
+
+        $targets = array();
+        if ($stream->nextIf('with')) {
+            do {
+                $name = $stream->expect(Twig_Token::NAME_TYPE)->getValue();
+
+                $alias = $name;
+                if ($stream->nextIf('as')) {
+                    $alias = $stream->expect(Twig_Token::NAME_TYPE)->getValue();
+                }
+
+                $targets[$name] = new Twig_Node_Expression_Constant($alias, -1);
+
+                if (!$stream->nextIf(Twig_Token::PUNCTUATION_TYPE, ',')) {
+                    break;
+                }
+            } while (true);
+        }
+
+        $stream->expect(Twig_Token::BLOCK_END_TYPE);
+
+        $this->parser->addTrait(new Twig_Node(array('template' => $template, 'targets' => new Twig_Node($targets))));
+    }
+
+    public function getTag()
+    {
+        return 'use';
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/TokenParserBroker.php b/vendor/twig/twig/lib/Twig/TokenParserBroker.php
new file mode 100644
index 000000000..d88bb43e7
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenParserBroker.php
@@ -0,0 +1,142 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ * (c) 2010 Arnaud Le Blanc
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Default implementation of a token parser broker.
+ *
+ * @author Arnaud Le Blanc <arnaud.lb@gmail.com>
+ *
+ * @deprecated since 1.12 (to be removed in 2.0)
+ */
+class Twig_TokenParserBroker implements Twig_TokenParserBrokerInterface
+{
+    protected $parser;
+    protected $parsers = array();
+    protected $brokers = array();
+
+    /**
+     * Constructor.
+     *
+     * @param array|Traversable $parsers                 A Traversable of Twig_TokenParserInterface instances
+     * @param array|Traversable $brokers                 A Traversable of Twig_TokenParserBrokerInterface instances
+     * @param bool              $triggerDeprecationError
+     */
+    public function __construct($parsers = array(), $brokers = array(), $triggerDeprecationError = true)
+    {
+        if ($triggerDeprecationError) {
+            @trigger_error('The '.__CLASS__.' class is deprecated since version 1.12 and will be removed in 2.0.', E_USER_DEPRECATED);
+        }
+
+        foreach ($parsers as $parser) {
+            if (!$parser instanceof Twig_TokenParserInterface) {
+                throw new LogicException('$parsers must a an array of Twig_TokenParserInterface.');
+            }
+            $this->parsers[$parser->getTag()] = $parser;
+        }
+        foreach ($brokers as $broker) {
+            if (!$broker instanceof Twig_TokenParserBrokerInterface) {
+                throw new LogicException('$brokers must a an array of Twig_TokenParserBrokerInterface.');
+            }
+            $this->brokers[] = $broker;
+        }
+    }
+
+    /**
+     * Adds a TokenParser.
+     *
+     * @param Twig_TokenParserInterface $parser A Twig_TokenParserInterface instance
+     */
+    public function addTokenParser(Twig_TokenParserInterface $parser)
+    {
+        $this->parsers[$parser->getTag()] = $parser;
+    }
+
+    /**
+     * Removes a TokenParser.
+     *
+     * @param Twig_TokenParserInterface $parser A Twig_TokenParserInterface instance
+     */
+    public function removeTokenParser(Twig_TokenParserInterface $parser)
+    {
+        $name = $parser->getTag();
+        if (isset($this->parsers[$name]) && $parser === $this->parsers[$name]) {
+            unset($this->parsers[$name]);
+        }
+    }
+
+    /**
+     * Adds a TokenParserBroker.
+     *
+     * @param Twig_TokenParserBroker $broker A Twig_TokenParserBroker instance
+     */
+    public function addTokenParserBroker(Twig_TokenParserBroker $broker)
+    {
+        $this->brokers[] = $broker;
+    }
+
+    /**
+     * Removes a TokenParserBroker.
+     *
+     * @param Twig_TokenParserBroker $broker A Twig_TokenParserBroker instance
+     */
+    public function removeTokenParserBroker(Twig_TokenParserBroker $broker)
+    {
+        if (false !== $pos = array_search($broker, $this->brokers)) {
+            unset($this->brokers[$pos]);
+        }
+    }
+
+    /**
+     * Gets a suitable TokenParser for a tag.
+     *
+     * First looks in parsers, then in brokers.
+     *
+     * @param string $tag A tag name
+     *
+     * @return null|Twig_TokenParserInterface A Twig_TokenParserInterface or null if no suitable TokenParser was found
+     */
+    public function getTokenParser($tag)
+    {
+        if (isset($this->parsers[$tag])) {
+            return $this->parsers[$tag];
+        }
+        $broker = end($this->brokers);
+        while (false !== $broker) {
+            $parser = $broker->getTokenParser($tag);
+            if (null !== $parser) {
+                return $parser;
+            }
+            $broker = prev($this->brokers);
+        }
+    }
+
+    public function getParsers()
+    {
+        return $this->parsers;
+    }
+
+    public function getParser()
+    {
+        return $this->parser;
+    }
+
+    public function setParser(Twig_ParserInterface $parser)
+    {
+        $this->parser = $parser;
+        foreach ($this->parsers as $tokenParser) {
+            $tokenParser->setParser($parser);
+        }
+        foreach ($this->brokers as $broker) {
+            $broker->setParser($parser);
+        }
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/TokenParserBrokerInterface.php b/vendor/twig/twig/lib/Twig/TokenParserBrokerInterface.php
new file mode 100644
index 000000000..3ec2a8801
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenParserBrokerInterface.php
@@ -0,0 +1,46 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ * (c) 2010 Arnaud Le Blanc
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Interface implemented by token parser brokers.
+ *
+ * Token parser brokers allows to implement custom logic in the process of resolving a token parser for a given tag name.
+ *
+ * @author Arnaud Le Blanc <arnaud.lb@gmail.com>
+ *
+ * @deprecated since 1.12 (to be removed in 2.0)
+ */
+interface Twig_TokenParserBrokerInterface
+{
+    /**
+     * Gets a TokenParser suitable for a tag.
+     *
+     * @param string $tag A tag name
+     *
+     * @return null|Twig_TokenParserInterface A Twig_TokenParserInterface or null if no suitable TokenParser was found
+     */
+    public function getTokenParser($tag);
+
+    /**
+     * Calls Twig_TokenParserInterface::setParser on all parsers the implementation knows of.
+     *
+     * @param Twig_ParserInterface $parser A Twig_ParserInterface interface
+     */
+    public function setParser(Twig_ParserInterface $parser);
+
+    /**
+     * Gets the Twig_ParserInterface.
+     *
+     * @return null|Twig_ParserInterface A Twig_ParserInterface instance or null
+     */
+    public function getParser();
+}
diff --git a/vendor/twig/twig/lib/Twig/TokenParserInterface.php b/vendor/twig/twig/lib/Twig/TokenParserInterface.php
new file mode 100644
index 000000000..12ec39617
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenParserInterface.php
@@ -0,0 +1,43 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2010 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Interface implemented by token parsers.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface Twig_TokenParserInterface
+{
+    /**
+     * Sets the parser associated with this token parser.
+     *
+     * @param Twig_Parser $parser A Twig_Parser instance
+     */
+    public function setParser(Twig_Parser $parser);
+
+    /**
+     * Parses a token and returns a node.
+     *
+     * @param Twig_Token $token A Twig_Token instance
+     *
+     * @return Twig_NodeInterface A Twig_NodeInterface instance
+     *
+     * @throws Twig_Error_Syntax
+     */
+    public function parse(Twig_Token $token);
+
+    /**
+     * Gets the tag name associated with this token parser.
+     *
+     * @return string The tag name
+     */
+    public function getTag();
+}
diff --git a/vendor/twig/twig/lib/Twig/TokenStream.php b/vendor/twig/twig/lib/Twig/TokenStream.php
new file mode 100644
index 000000000..016f8122a
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenStream.php
@@ -0,0 +1,155 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a token stream.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_TokenStream
+{
+    protected $tokens;
+    protected $current = 0;
+    protected $filename;
+
+    /**
+     * Constructor.
+     *
+     * @param array  $tokens   An array of tokens
+     * @param string $filename The name of the filename which tokens are associated with
+     */
+    public function __construct(array $tokens, $filename = null)
+    {
+        $this->tokens = $tokens;
+        $this->filename = $filename;
+    }
+
+    /**
+     * Returns a string representation of the token stream.
+     *
+     * @return string
+     */
+    public function __toString()
+    {
+        return implode("\n", $this->tokens);
+    }
+
+    public function injectTokens(array $tokens)
+    {
+        $this->tokens = array_merge(array_slice($this->tokens, 0, $this->current), $tokens, array_slice($this->tokens, $this->current));
+    }
+
+    /**
+     * Sets the pointer to the next token and returns the old one.
+     *
+     * @return Twig_Token
+     */
+    public function next()
+    {
+        if (!isset($this->tokens[++$this->current])) {
+            throw new Twig_Error_Syntax('Unexpected end of template.', $this->tokens[$this->current - 1]->getLine(), $this->filename);
+        }
+
+        return $this->tokens[$this->current - 1];
+    }
+
+    /**
+     * Tests a token, sets the pointer to the next one and returns it or throws a syntax error.
+     *
+     * @return Twig_Token|null The next token if the condition is true, null otherwise
+     */
+    public function nextIf($primary, $secondary = null)
+    {
+        if ($this->tokens[$this->current]->test($primary, $secondary)) {
+            return $this->next();
+        }
+    }
+
+    /**
+     * Tests a token and returns it or throws a syntax error.
+     *
+     * @return Twig_Token
+     */
+    public function expect($type, $value = null, $message = null)
+    {
+        $token = $this->tokens[$this->current];
+        if (!$token->test($type, $value)) {
+            $line = $token->getLine();
+            throw new Twig_Error_Syntax(sprintf('%sUnexpected token "%s" of value "%s" ("%s" expected%s).',
+                $message ? $message.'. ' : '',
+                Twig_Token::typeToEnglish($token->getType()), $token->getValue(),
+                Twig_Token::typeToEnglish($type), $value ? sprintf(' with value "%s"', $value) : ''),
+                $line,
+                $this->filename
+            );
+        }
+        $this->next();
+
+        return $token;
+    }
+
+    /**
+     * Looks at the next token.
+     *
+     * @param int $number
+     *
+     * @return Twig_Token
+     */
+    public function look($number = 1)
+    {
+        if (!isset($this->tokens[$this->current + $number])) {
+            throw new Twig_Error_Syntax('Unexpected end of template.', $this->tokens[$this->current + $number - 1]->getLine(), $this->filename);
+        }
+
+        return $this->tokens[$this->current + $number];
+    }
+
+    /**
+     * Tests the current token.
+     *
+     * @return bool
+     */
+    public function test($primary, $secondary = null)
+    {
+        return $this->tokens[$this->current]->test($primary, $secondary);
+    }
+
+    /**
+     * Checks if end of stream was reached.
+     *
+     * @return bool
+     */
+    public function isEOF()
+    {
+        return $this->tokens[$this->current]->getType() === Twig_Token::EOF_TYPE;
+    }
+
+    /**
+     * Gets the current token.
+     *
+     * @return Twig_Token
+     */
+    public function getCurrent()
+    {
+        return $this->tokens[$this->current];
+    }
+
+    /**
+     * Gets the filename associated with this stream.
+     *
+     * @return string
+     */
+    public function getFilename()
+    {
+        return $this->filename;
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Util/DeprecationCollector.php b/vendor/twig/twig/lib/Twig/Util/DeprecationCollector.php
new file mode 100644
index 000000000..e406f0aa7
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Util/DeprecationCollector.php
@@ -0,0 +1,82 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Util_DeprecationCollector
+{
+    private $twig;
+    private $deprecations;
+
+    public function __construct(Twig_Environment $twig)
+    {
+        $this->twig = $twig;
+    }
+
+    /**
+     * Returns deprecations for templates contained in a directory.
+     *
+     * @param string $dir A directory where templates are stored
+     * @param string $ext Limit the loaded templates by extension
+     *
+     * @return array() An array of deprecations
+     */
+    public function collectDir($dir, $ext = '.twig')
+    {
+        $iterator = new RegexIterator(
+            new RecursiveIteratorIterator(
+                new RecursiveDirectoryIterator($dir), RecursiveIteratorIterator::LEAVES_ONLY
+            ), '{'.preg_quote($ext).'$}'
+        );
+
+        return $this->collect(new Twig_Util_TemplateDirIterator($iterator));
+    }
+
+    /**
+     * Returns deprecations for passed templates.
+     *
+     * @param Iterator $iterator An iterator of templates (where keys are template names and values the contents of the template)
+     *
+     * @return array() An array of deprecations
+     */
+    public function collect(Iterator $iterator)
+    {
+        $this->deprecations = array();
+
+        set_error_handler(array($this, 'errorHandler'));
+
+        foreach ($iterator as $name => $contents) {
+            try {
+                $this->twig->parse($this->twig->tokenize($contents, $name));
+            } catch (Twig_Error_Syntax $e) {
+                // ignore templates containing syntax errors
+            }
+        }
+
+        restore_error_handler();
+
+        $deprecations = $this->deprecations;
+        $this->deprecations = array();
+
+        return $deprecations;
+    }
+
+    /**
+     * @internal
+     */
+    public function errorHandler($type, $msg)
+    {
+        if (E_USER_DEPRECATED === $type) {
+            $this->deprecations[] = $msg;
+        }
+    }
+}
diff --git a/vendor/twig/twig/lib/Twig/Util/TemplateDirIterator.php b/vendor/twig/twig/lib/Twig/Util/TemplateDirIterator.php
new file mode 100644
index 000000000..3fb893278
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Util/TemplateDirIterator.php
@@ -0,0 +1,26 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Util_TemplateDirIterator extends IteratorIterator
+{
+    public function current()
+    {
+        return file_get_contents(parent::current());
+    }
+
+    public function key()
+    {
+        return (string) parent::key();
+    }
+}
diff --git a/vendor/twig/twig/phpunit.xml.dist b/vendor/twig/twig/phpunit.xml.dist
new file mode 100644
index 000000000..6f6d1d25a
--- /dev/null
+++ b/vendor/twig/twig/phpunit.xml.dist
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<phpunit backupGlobals="false"
+         backupStaticAttributes="false"
+         colors="true"
+         convertErrorsToExceptions="true"
+         convertNoticesToExceptions="true"
+         convertWarningsToExceptions="true"
+         processIsolation="false"
+         stopOnFailure="false"
+         syntaxCheck="false"
+         bootstrap="vendor/autoload.php"
+>
+  <testsuites>
+    <testsuite name="Twig Test Suite">
+      <directory>./test/Twig/</directory>
+    </testsuite>
+  </testsuites>
+
+  <filter>
+    <whitelist>
+      <directory suffix=".php">./lib/Twig/</directory>
+    </whitelist>
+  </filter>
+</phpunit>
diff --git a/vendor/twig/twig/test/Twig/Tests/AutoloaderTest.php b/vendor/twig/twig/test/Twig/Tests/AutoloaderTest.php
new file mode 100644
index 000000000..52107c0c1
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/AutoloaderTest.php
@@ -0,0 +1,24 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_AutoloaderTest extends PHPUnit_Framework_TestCase
+{
+    /**
+     * @group legacy
+     */
+    public function testAutoload()
+    {
+        $this->assertFalse(class_exists('FooBarFoo'), '->autoload() does not try to load classes that does not begin with Twig');
+
+        $autoloader = new Twig_Autoloader();
+        $this->assertNull($autoloader->autoload('Foo'), '->autoload() returns false if it is not able to load a class');
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Cache/FilesystemTest.php b/vendor/twig/twig/test/Twig/Tests/Cache/FilesystemTest.php
new file mode 100644
index 000000000..93a92d93d
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Cache/FilesystemTest.php
@@ -0,0 +1,193 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+require_once dirname(dirname(__FILE__)).'/FilesystemHelper.php';
+
+class Twig_Tests_Cache_FilesystemTest extends PHPUnit_Framework_TestCase
+{
+    private $classname;
+    private $directory;
+    private $cache;
+
+    protected function setUp()
+    {
+        $nonce = hash('sha256', uniqid(mt_rand(), true));
+        $this->classname = '__Twig_Tests_Cache_FilesystemTest_Template_'.$nonce;
+        $this->directory = sys_get_temp_dir().'/twig-test';
+        $this->cache = new Twig_Cache_Filesystem($this->directory);
+    }
+
+    protected function tearDown()
+    {
+        if (file_exists($this->directory)) {
+            Twig_Tests_FilesystemHelper::removeDir($this->directory);
+        }
+    }
+
+    public function testLoad()
+    {
+        $key = $this->directory.'/cache/cachefile.php';
+
+        $dir = dirname($key);
+        @mkdir($dir, 0777, true);
+        $this->assertTrue(is_dir($dir));
+        $this->assertFalse(class_exists($this->classname, false));
+
+        $content = $this->generateSource();
+        file_put_contents($key, $content);
+
+        $this->cache->load($key);
+
+        $this->assertTrue(class_exists($this->classname, false));
+    }
+
+    public function testLoadMissing()
+    {
+        $key = $this->directory.'/cache/cachefile.php';
+
+        $this->assertFalse(class_exists($this->classname, false));
+
+        $this->cache->load($key);
+
+        $this->assertFalse(class_exists($this->classname, false));
+    }
+
+    public function testWrite()
+    {
+        $key = $this->directory.'/cache/cachefile.php';
+        $content = $this->generateSource();
+
+        $this->assertFalse(file_exists($key));
+        $this->assertFalse(file_exists($this->directory));
+
+        $this->cache->write($key, $content);
+
+        $this->assertTrue(file_exists($this->directory));
+        $this->assertTrue(file_exists($key));
+        $this->assertSame(file_get_contents($key), $content);
+    }
+
+    /**
+     * @expectedException RuntimeException
+     * @expectedExceptionMessage Unable to create the cache directory
+     */
+    public function testWriteFailMkdir()
+    {
+        if (defined('PHP_WINDOWS_VERSION_BUILD')) {
+            $this->markTestSkipped('Read-only directories not possible on Windows.');
+        }
+
+        $key = $this->directory.'/cache/cachefile.php';
+        $content = $this->generateSource();
+
+        $this->assertFalse(file_exists($key));
+
+        // Create read-only root directory.
+        @mkdir($this->directory, 0555, true);
+        $this->assertTrue(is_dir($this->directory));
+
+        $this->cache->write($key, $content);
+    }
+
+    /**
+     * @expectedException RuntimeException
+     * @expectedExceptionMessage Unable to write in the cache directory
+     */
+    public function testWriteFailDirWritable()
+    {
+        if (defined('PHP_WINDOWS_VERSION_BUILD')) {
+            $this->markTestSkipped('Read-only directories not possible on Windows.');
+        }
+
+        $key = $this->directory.'/cache/cachefile.php';
+        $content = $this->generateSource();
+
+        $this->assertFalse(file_exists($key));
+
+        // Create root directory.
+        @mkdir($this->directory, 0777, true);
+        // Create read-only subdirectory.
+        @mkdir($this->directory.'/cache' , 0555);
+        $this->assertTrue(is_dir($this->directory.'/cache'));
+
+        $this->cache->write($key, $content);
+    }
+
+    /**
+     * @expectedException RuntimeException
+     * @expectedExceptionMessage Failed to write cache file
+     */
+    public function testWriteFailWriteFile()
+    {
+        $key = $this->directory.'/cache/cachefile.php';
+        $content = $this->generateSource();
+
+        $this->assertFalse(file_exists($key));
+
+        // Create a directory in the place of the cache file.
+        @mkdir($key, 0777, true);
+        $this->assertTrue(is_dir($key));
+
+        $this->cache->write($key, $content);
+    }
+
+    public function testGetTimestamp()
+    {
+        $key = $this->directory.'/cache/cachefile.php';
+
+        $dir = dirname($key);
+        @mkdir($dir, 0777, true);
+        $this->assertTrue(is_dir($dir));
+
+        // Create the file with a specific modification time.
+        touch($key, 1234567890);
+
+        $this->assertSame(1234567890, $this->cache->getTimestamp($key));
+    }
+
+    public function testGetTimestampMissingFile()
+    {
+        $key = $this->directory.'/cache/cachefile.php';
+        $this->assertSame(0, $this->cache->getTimestamp($key));
+    }
+
+    /**
+     * Test file cache is tolerant towards trailing (back)slashes on the configured cache directory.
+     *
+     * @dataProvider provideDirectories
+     */
+    public function testGenerateKey($expected, $input)
+    {
+        $cache = new Twig_Cache_Filesystem($input);
+        $this->assertRegExp($expected, $cache->generateKey('_test_', get_class($this)));
+    }
+
+    public function provideDirectories()
+    {
+        $pattern = '#a/b/[a-zA-Z0-9]+/[a-zA-Z0-9]+.php$#';
+
+        return array(
+            array($pattern, 'a/b'),
+            array($pattern, 'a/b/'),
+            array($pattern, 'a/b\\'),
+            array($pattern, 'a/b\\/'),
+            array($pattern, 'a/b\\//'),
+            array('#/'.substr($pattern, 1), '/a/b'),
+        );
+    }
+
+    private function generateSource()
+    {
+        return strtr('<?php class {{classname}} {}', array(
+            '{{classname}}' => $this->classname,
+        ));
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/CompilerTest.php b/vendor/twig/twig/test/Twig/Tests/CompilerTest.php
new file mode 100644
index 000000000..bc25f117b
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/CompilerTest.php
@@ -0,0 +1,33 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_CompilerTest extends PHPUnit_Framework_TestCase
+{
+    public function testReprNumericValueWithLocale()
+    {
+        $compiler = new Twig_Compiler(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+
+        $locale = setlocale(LC_NUMERIC, 0);
+        if (false === $locale) {
+            $this->markTestSkipped('Your platform does not support locales.');
+        }
+
+        $required_locales = array('fr_FR.UTF-8', 'fr_FR.UTF8', 'fr_FR.utf-8', 'fr_FR.utf8', 'French_France.1252');
+        if (false === setlocale(LC_NUMERIC, $required_locales)) {
+            $this->markTestSkipped('Could not set any of required locales: '.implode(', ', $required_locales));
+        }
+
+        $this->assertEquals('1.2', $compiler->repr(1.2)->getSource());
+        $this->assertContains('fr', strtolower(setlocale(LC_NUMERIC, 0)));
+
+        setlocale(LC_NUMERIC, $locale);
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/EnvironmentTest.php b/vendor/twig/twig/test/Twig/Tests/EnvironmentTest.php
new file mode 100644
index 000000000..35f65bdd9
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/EnvironmentTest.php
@@ -0,0 +1,529 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+require_once dirname(__FILE__).'/FilesystemHelper.php';
+
+class Twig_Tests_EnvironmentTest extends PHPUnit_Framework_TestCase
+{
+    private $deprecations = array();
+
+    /**
+     * @expectedException        LogicException
+     * @expectedExceptionMessage You must set a loader first.
+     * @group legacy
+     */
+    public function testRenderNoLoader()
+    {
+        $env = new Twig_Environment();
+        $env->render('test');
+    }
+
+    public function testAutoescapeOption()
+    {
+        $loader = new Twig_Loader_Array(array(
+            'html' => '{{ foo }} {{ foo }}',
+            'js' => '{{ bar }} {{ bar }}',
+        ));
+
+        $twig = new Twig_Environment($loader, array(
+            'debug' => true,
+            'cache' => false,
+            'autoescape' => array($this, 'escapingStrategyCallback'),
+        ));
+
+        $this->assertEquals('foo&lt;br/ &gt; foo&lt;br/ &gt;', $twig->render('html', array('foo' => 'foo<br/ >')));
+        $this->assertEquals('foo\x3Cbr\x2F\x20\x3E foo\x3Cbr\x2F\x20\x3E', $twig->render('js', array('bar' => 'foo<br/ >')));
+    }
+
+    public function escapingStrategyCallback($filename)
+    {
+        return $filename;
+    }
+
+    public function testGlobals()
+    {
+        // globals can be added after calling getGlobals
+        $twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+        $twig->addGlobal('foo', 'foo');
+        $twig->getGlobals();
+        $twig->addGlobal('foo', 'bar');
+        $globals = $twig->getGlobals();
+        $this->assertEquals('bar', $globals['foo']);
+
+        // globals can be modified after a template has been loaded
+        $twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+        $twig->addGlobal('foo', 'foo');
+        $twig->getGlobals();
+        $twig->loadTemplate('index');
+        $twig->addGlobal('foo', 'bar');
+        $globals = $twig->getGlobals();
+        $this->assertEquals('bar', $globals['foo']);
+
+        // globals can be modified after extensions init
+        $twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+        $twig->addGlobal('foo', 'foo');
+        $twig->getGlobals();
+        $twig->getFunctions();
+        $twig->addGlobal('foo', 'bar');
+        $globals = $twig->getGlobals();
+        $this->assertEquals('bar', $globals['foo']);
+
+        // globals can be modified after extensions and a template has been loaded
+        $twig = new Twig_Environment($loader = new Twig_Loader_Array(array('index' => '{{foo}}')));
+        $twig->addGlobal('foo', 'foo');
+        $twig->getGlobals();
+        $twig->getFunctions();
+        $twig->loadTemplate('index');
+        $twig->addGlobal('foo', 'bar');
+        $globals = $twig->getGlobals();
+        $this->assertEquals('bar', $globals['foo']);
+
+        $twig = new Twig_Environment($loader);
+        $twig->getGlobals();
+        $twig->addGlobal('foo', 'bar');
+        $template = $twig->loadTemplate('index');
+        $this->assertEquals('bar', $template->render(array()));
+
+        /* to be uncomment in Twig 2.0
+        // globals cannot be added after a template has been loaded
+        $twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+        $twig->addGlobal('foo', 'foo');
+        $twig->getGlobals();
+        $twig->loadTemplate('index');
+        try {
+            $twig->addGlobal('bar', 'bar');
+            $this->fail();
+        } catch (LogicException $e) {
+            $this->assertFalse(array_key_exists('bar', $twig->getGlobals()));
+        }
+
+        // globals cannot be added after extensions init
+        $twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+        $twig->addGlobal('foo', 'foo');
+        $twig->getGlobals();
+        $twig->getFunctions();
+        try {
+            $twig->addGlobal('bar', 'bar');
+            $this->fail();
+        } catch (LogicException $e) {
+            $this->assertFalse(array_key_exists('bar', $twig->getGlobals()));
+        }
+
+        // globals cannot be added after extensions and a template has been loaded
+        $twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+        $twig->addGlobal('foo', 'foo');
+        $twig->getGlobals();
+        $twig->getFunctions();
+        $twig->loadTemplate('index');
+        try {
+            $twig->addGlobal('bar', 'bar');
+            $this->fail();
+        } catch (LogicException $e) {
+            $this->assertFalse(array_key_exists('bar', $twig->getGlobals()));
+        }
+
+        // test adding globals after a template has been loaded without call to getGlobals
+        $twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+        $twig->loadTemplate('index');
+        try {
+            $twig->addGlobal('bar', 'bar');
+            $this->fail();
+        } catch (LogicException $e) {
+            $this->assertFalse(array_key_exists('bar', $twig->getGlobals()));
+        }
+        */
+    }
+
+    public function testCompileSourceInlinesSource()
+    {
+        $twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+
+        $source = "<? */*foo*/ ?>\r\nbar\n";
+        $expected = "/* <? *//* *foo*//*  ?>*/\n/* bar*/\n/* */\n";
+        $compiled = $twig->compileSource($source, 'index');
+
+        $this->assertContains($expected, $compiled);
+        $this->assertNotContains('/**', $compiled);
+    }
+
+    public function testExtensionsAreNotInitializedWhenRenderingACompiledTemplate()
+    {
+        $cache = new Twig_Cache_Filesystem($dir = sys_get_temp_dir().'/twig');
+        $options = array('cache' => $cache, 'auto_reload' => false, 'debug' => false);
+
+        // force compilation
+        $twig = new Twig_Environment($loader = new Twig_Loader_Array(array('index' => '{{ foo }}')), $options);
+
+        $key = $cache->generateKey('index', $twig->getTemplateClass('index'));
+        $cache->write($key, $twig->compileSource('{{ foo }}', 'index'));
+
+        // check that extensions won't be initialized when rendering a template that is already in the cache
+        $twig = $this
+            ->getMockBuilder('Twig_Environment')
+            ->setConstructorArgs(array($loader, $options))
+            ->setMethods(array('initExtensions'))
+            ->getMock()
+        ;
+
+        $twig->expects($this->never())->method('initExtensions');
+
+        // render template
+        $output = $twig->render('index', array('foo' => 'bar'));
+        $this->assertEquals('bar', $output);
+
+        Twig_Tests_FilesystemHelper::removeDir($dir);
+    }
+
+    public function testAutoReloadCacheMiss()
+    {
+        $templateName = __FUNCTION__;
+        $templateContent = __FUNCTION__;
+
+        $cache = $this->getMock('Twig_CacheInterface');
+        $loader = $this->getMockLoader($templateName, $templateContent);
+        $twig = new Twig_Environment($loader, array('cache' => $cache, 'auto_reload' => true, 'debug' => false));
+
+        // Cache miss: getTimestamp returns 0 and as a result the load() is
+        // skipped.
+        $cache->expects($this->once())
+            ->method('generateKey')
+            ->will($this->returnValue('key'));
+        $cache->expects($this->once())
+            ->method('getTimestamp')
+            ->will($this->returnValue(0));
+        $loader->expects($this->never())
+            ->method('isFresh');
+        $cache->expects($this->never())
+            ->method('load');
+
+        $twig->loadTemplate($templateName);
+    }
+
+    public function testAutoReloadCacheHit()
+    {
+        $templateName = __FUNCTION__;
+        $templateContent = __FUNCTION__;
+
+        $cache = $this->getMock('Twig_CacheInterface');
+        $loader = $this->getMockLoader($templateName, $templateContent);
+        $twig = new Twig_Environment($loader, array('cache' => $cache, 'auto_reload' => true, 'debug' => false));
+
+        $now = time();
+
+        // Cache hit: getTimestamp returns something > extension timestamps and
+        // the loader returns true for isFresh().
+        $cache->expects($this->once())
+            ->method('generateKey')
+            ->will($this->returnValue('key'));
+        $cache->expects($this->once())
+            ->method('getTimestamp')
+            ->will($this->returnValue($now));
+        $loader->expects($this->once())
+            ->method('isFresh')
+            ->will($this->returnValue(true));
+        $cache->expects($this->once())
+            ->method('load');
+
+        $twig->loadTemplate($templateName);
+    }
+
+    public function testAutoReloadOutdatedCacheHit()
+    {
+        $templateName = __FUNCTION__;
+        $templateContent = __FUNCTION__;
+
+        $cache = $this->getMock('Twig_CacheInterface');
+        $loader = $this->getMockLoader($templateName, $templateContent);
+        $twig = new Twig_Environment($loader, array('cache' => $cache, 'auto_reload' => true, 'debug' => false));
+
+        $now = time();
+
+        $cache->expects($this->once())
+            ->method('generateKey')
+            ->will($this->returnValue('key'));
+        $cache->expects($this->once())
+            ->method('getTimestamp')
+            ->will($this->returnValue($now));
+        $loader->expects($this->once())
+            ->method('isFresh')
+            ->will($this->returnValue(false));
+        $cache->expects($this->never())
+            ->method('load');
+
+        $twig->loadTemplate($templateName);
+    }
+
+    public function testAddExtension()
+    {
+        $twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+        $twig->addExtension(new Twig_Tests_EnvironmentTest_Extension());
+
+        $this->assertArrayHasKey('test', $twig->getTags());
+        $this->assertArrayHasKey('foo_filter', $twig->getFilters());
+        $this->assertArrayHasKey('foo_function', $twig->getFunctions());
+        $this->assertArrayHasKey('foo_test', $twig->getTests());
+        $this->assertArrayHasKey('foo_unary', $twig->getUnaryOperators());
+        $this->assertArrayHasKey('foo_binary', $twig->getBinaryOperators());
+        $this->assertArrayHasKey('foo_global', $twig->getGlobals());
+        $visitors = $twig->getNodeVisitors();
+        $this->assertEquals('Twig_Tests_EnvironmentTest_NodeVisitor', get_class($visitors[2]));
+    }
+
+    /**
+     * @requires PHP 5.3
+     */
+    public function testAddExtensionWithDeprecatedGetGlobals()
+    {
+        $twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+        $twig->addExtension(new Twig_Tests_EnvironmentTest_Extension_WithGlobals());
+
+        $this->deprecations = array();
+        set_error_handler(array($this, 'handleError'));
+
+        $this->assertArrayHasKey('foo_global', $twig->getGlobals());
+
+        $this->assertCount(1, $this->deprecations);
+        $this->assertContains('Defining the getGlobals() method in the "environment_test" extension ', $this->deprecations[0]);
+
+        restore_error_handler();
+    }
+
+    /**
+     * @group legacy
+     */
+    public function testRemoveExtension()
+    {
+        $twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+        $twig->addExtension(new Twig_Tests_EnvironmentTest_Extension());
+        $twig->removeExtension('environment_test');
+
+        $this->assertFalse(array_key_exists('test', $twig->getTags()));
+        $this->assertFalse(array_key_exists('foo_filter', $twig->getFilters()));
+        $this->assertFalse(array_key_exists('foo_function', $twig->getFunctions()));
+        $this->assertFalse(array_key_exists('foo_test', $twig->getTests()));
+        $this->assertFalse(array_key_exists('foo_unary', $twig->getUnaryOperators()));
+        $this->assertFalse(array_key_exists('foo_binary', $twig->getBinaryOperators()));
+        $this->assertFalse(array_key_exists('foo_global', $twig->getGlobals()));
+        $this->assertCount(2, $twig->getNodeVisitors());
+    }
+
+    public function testAddMockExtension()
+    {
+        $extension = $this->getMock('Twig_ExtensionInterface');
+        $extension->expects($this->once())
+            ->method('getName')
+            ->will($this->returnValue('mock'));
+
+        $loader = new Twig_Loader_Array(array('page' => 'hey'));
+
+        $twig = new Twig_Environment($loader);
+        $twig->addExtension($extension);
+
+        $this->assertInstanceOf('Twig_ExtensionInterface', $twig->getExtension('mock'));
+        $this->assertTrue($twig->isTemplateFresh('page', time()));
+    }
+
+    public function testInitRuntimeWithAnExtensionUsingInitRuntimeNoDeprecation()
+    {
+        $twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+        $twig->addExtension(new Twig_Tests_EnvironmentTest_ExtensionWithoutDeprecationInitRuntime());
+
+        $twig->initRuntime();
+    }
+
+    /**
+     * @requires PHP 5.3
+     */
+    public function testInitRuntimeWithAnExtensionUsingInitRuntimeDeprecation()
+    {
+        $twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+        $twig->addExtension(new Twig_Tests_EnvironmentTest_ExtensionWithDeprecationInitRuntime());
+
+        $this->deprecations = array();
+        set_error_handler(array($this, 'handleError'));
+
+        $twig->initRuntime();
+
+        $this->assertCount(1, $this->deprecations);
+        $this->assertContains('Defining the initRuntime() method in the "with_deprecation" extension is deprecated since version 1.23.', $this->deprecations[0]);
+
+        restore_error_handler();
+    }
+
+    public function handleError($type, $msg)
+    {
+        if (E_USER_DEPRECATED === $type) {
+            $this->deprecations[] = $msg;
+        }
+    }
+
+    /**
+     * @requires PHP 5.3
+     */
+    public function testOverrideExtension()
+    {
+        $twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+        $twig->addExtension(new Twig_Tests_EnvironmentTest_ExtensionWithDeprecationInitRuntime());
+
+        $this->deprecations = array();
+        set_error_handler(array($this, 'handleError'));
+
+        $twig->addExtension(new Twig_Tests_EnvironmentTest_Extension());
+        $twig->addExtension(new Twig_Tests_EnvironmentTest_Extension());
+
+        $this->assertCount(1, $this->deprecations);
+        $this->assertContains('The possibility to register the same extension twice', $this->deprecations[0]);
+
+        restore_error_handler();
+    }
+
+    protected function getMockLoader($templateName, $templateContent)
+    {
+        $loader = $this->getMock('Twig_LoaderInterface');
+        $loader->expects($this->any())
+          ->method('getSource')
+          ->with($templateName)
+          ->will($this->returnValue($templateContent));
+        $loader->expects($this->any())
+          ->method('getCacheKey')
+          ->with($templateName)
+          ->will($this->returnValue($templateName));
+
+        return $loader;
+    }
+}
+
+class Twig_Tests_EnvironmentTest_Extension_WithGlobals extends Twig_Extension
+{
+    public function getGlobals()
+    {
+        return array(
+            'foo_global' => 'foo_global',
+        );
+    }
+
+    public function getName()
+    {
+        return 'environment_test';
+    }
+}
+
+class Twig_Tests_EnvironmentTest_Extension extends Twig_Extension implements Twig_Extension_GlobalsInterface
+{
+    public function getTokenParsers()
+    {
+        return array(
+            new Twig_Tests_EnvironmentTest_TokenParser(),
+        );
+    }
+
+    public function getNodeVisitors()
+    {
+        return array(
+            new Twig_Tests_EnvironmentTest_NodeVisitor(),
+        );
+    }
+
+    public function getFilters()
+    {
+        return array(
+            new Twig_SimpleFilter('foo_filter', 'foo_filter'),
+        );
+    }
+
+    public function getTests()
+    {
+        return array(
+            new Twig_SimpleTest('foo_test', 'foo_test'),
+        );
+    }
+
+    public function getFunctions()
+    {
+        return array(
+            new Twig_SimpleFunction('foo_function', 'foo_function'),
+        );
+    }
+
+    public function getOperators()
+    {
+        return array(
+            array('foo_unary' => array()),
+            array('foo_binary' => array()),
+        );
+    }
+
+    public function getGlobals()
+    {
+        return array(
+            'foo_global' => 'foo_global',
+        );
+    }
+
+    public function getName()
+    {
+        return 'environment_test';
+    }
+}
+
+class Twig_Tests_EnvironmentTest_TokenParser extends Twig_TokenParser
+{
+    public function parse(Twig_Token $token)
+    {
+    }
+
+    public function getTag()
+    {
+        return 'test';
+    }
+}
+
+class Twig_Tests_EnvironmentTest_NodeVisitor implements Twig_NodeVisitorInterface
+{
+    public function enterNode(Twig_NodeInterface $node, Twig_Environment $env)
+    {
+        return $node;
+    }
+
+    public function leaveNode(Twig_NodeInterface $node, Twig_Environment $env)
+    {
+        return $node;
+    }
+
+    public function getPriority()
+    {
+        return 0;
+    }
+}
+
+class Twig_Tests_EnvironmentTest_ExtensionWithDeprecationInitRuntime extends Twig_Extension
+{
+    public function initRuntime(Twig_Environment $env)
+    {
+    }
+
+    public function getName()
+    {
+        return 'with_deprecation';
+    }
+}
+
+class Twig_Tests_EnvironmentTest_ExtensionWithoutDeprecationInitRuntime extends Twig_Extension implements Twig_Extension_InitRuntimeInterface
+{
+    public function initRuntime(Twig_Environment $env)
+    {
+    }
+
+    public function getName()
+    {
+        return 'without_deprecation';
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/ErrorTest.php b/vendor/twig/twig/test/Twig/Tests/ErrorTest.php
new file mode 100644
index 000000000..d58c40b8d
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/ErrorTest.php
@@ -0,0 +1,144 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_ErrorTest extends PHPUnit_Framework_TestCase
+{
+    public function testErrorWithObjectFilename()
+    {
+        $error = new Twig_Error('foo');
+        $error->setTemplateFile(new SplFileInfo(__FILE__));
+
+        $this->assertContains('test'.DIRECTORY_SEPARATOR.'Twig'.DIRECTORY_SEPARATOR.'Tests'.DIRECTORY_SEPARATOR.'ErrorTest.php', $error->getMessage());
+    }
+
+    public function testErrorWithArrayFilename()
+    {
+        $error = new Twig_Error('foo');
+        $error->setTemplateFile(array('foo' => 'bar'));
+
+        $this->assertEquals('foo in {"foo":"bar"}', $error->getMessage());
+    }
+
+    public function testTwigExceptionAddsFileAndLineWhenMissingWithInheritanceOnDisk()
+    {
+        $loader = new Twig_Loader_Filesystem(dirname(__FILE__).'/Fixtures/errors');
+        $twig = new Twig_Environment($loader, array('strict_variables' => true, 'debug' => true, 'cache' => false));
+
+        $template = $twig->loadTemplate('index.html');
+        try {
+            $template->render(array());
+
+            $this->fail();
+        } catch (Twig_Error_Runtime $e) {
+            $this->assertEquals('Variable "foo" does not exist in "index.html" at line 3', $e->getMessage());
+            $this->assertEquals(3, $e->getTemplateLine());
+            $this->assertEquals('index.html', $e->getTemplateFile());
+        }
+
+        try {
+            $template->render(array('foo' => new Twig_Tests_ErrorTest_Foo()));
+
+            $this->fail();
+        } catch (Twig_Error_Runtime $e) {
+            $this->assertEquals('An exception has been thrown during the rendering of a template ("Runtime error...") in "index.html" at line 3.', $e->getMessage());
+            $this->assertEquals(3, $e->getTemplateLine());
+            $this->assertEquals('index.html', $e->getTemplateFile());
+        }
+    }
+
+    /**
+     * @dataProvider getErroredTemplates
+     */
+    public function testTwigExceptionAddsFileAndLine($templates, $name, $line)
+    {
+        $loader = new Twig_Loader_Array($templates);
+        $twig = new Twig_Environment($loader, array('strict_variables' => true, 'debug' => true, 'cache' => false));
+
+        $template = $twig->loadTemplate('index');
+
+        try {
+            $template->render(array());
+
+            $this->fail();
+        } catch (Twig_Error_Runtime $e) {
+            $this->assertEquals(sprintf('Variable "foo" does not exist in "%s" at line %d', $name, $line), $e->getMessage());
+            $this->assertEquals($line, $e->getTemplateLine());
+            $this->assertEquals($name, $e->getTemplateFile());
+        }
+
+        try {
+            $template->render(array('foo' => new Twig_Tests_ErrorTest_Foo()));
+
+            $this->fail();
+        } catch (Twig_Error_Runtime $e) {
+            $this->assertEquals(sprintf('An exception has been thrown during the rendering of a template ("Runtime error...") in "%s" at line %d.', $name, $line), $e->getMessage());
+            $this->assertEquals($line, $e->getTemplateLine());
+            $this->assertEquals($name, $e->getTemplateFile());
+        }
+    }
+
+    public function getErroredTemplates()
+    {
+        return array(
+            // error occurs in a template
+            array(
+                array(
+                    'index' => "\n\n{{ foo.bar }}\n\n\n{{ 'foo' }}",
+                ),
+                'index', 3,
+            ),
+
+            // error occurs in an included template
+            array(
+                array(
+                    'index' => "{% include 'partial' %}",
+                    'partial' => '{{ foo.bar }}',
+                ),
+                'partial', 1,
+            ),
+
+            // error occurs in a parent block when called via parent()
+            array(
+                array(
+                    'index' => "{% extends 'base' %}
+                    {% block content %}
+                        {{ parent() }}
+                    {% endblock %}",
+                    'base' => '{% block content %}{{ foo.bar }}{% endblock %}',
+                ),
+                'base', 1,
+            ),
+
+            // error occurs in a block from the child
+            array(
+                array(
+                    'index' => "{% extends 'base' %}
+                    {% block content %}
+                        {{ foo.bar }}
+                    {% endblock %}
+                    {% block foo %}
+                        {{ foo.bar }}
+                    {% endblock %}",
+                    'base' => '{% block content %}{% endblock %}',
+                ),
+                'index', 3,
+            ),
+        );
+    }
+}
+
+class Twig_Tests_ErrorTest_Foo
+{
+    public function bar()
+    {
+        throw new Exception('Runtime error...');
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/ExpressionParserTest.php b/vendor/twig/twig/test/Twig/Tests/ExpressionParserTest.php
new file mode 100644
index 000000000..33bf48be7
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/ExpressionParserTest.php
@@ -0,0 +1,368 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_ExpressionParserTest extends PHPUnit_Framework_TestCase
+{
+    /**
+     * @expectedException Twig_Error_Syntax
+     * @dataProvider getFailingTestsForAssignment
+     */
+    public function testCanOnlyAssignToNames($template)
+    {
+        $env = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('cache' => false, 'autoescape' => false));
+        $parser = new Twig_Parser($env);
+
+        $parser->parse($env->tokenize($template, 'index'));
+    }
+
+    public function getFailingTestsForAssignment()
+    {
+        return array(
+            array('{% set false = "foo" %}'),
+            array('{% set true = "foo" %}'),
+            array('{% set none = "foo" %}'),
+            array('{% set 3 = "foo" %}'),
+            array('{% set 1 + 2 = "foo" %}'),
+            array('{% set "bar" = "foo" %}'),
+            array('{% set %}{% endset %}'),
+        );
+    }
+
+    /**
+     * @dataProvider getTestsForArray
+     */
+    public function testArrayExpression($template, $expected)
+    {
+        $env = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('cache' => false, 'autoescape' => false));
+        $stream = $env->tokenize($template, 'index');
+        $parser = new Twig_Parser($env);
+
+        $this->assertEquals($expected, $parser->parse($stream)->getNode('body')->getNode(0)->getNode('expr'));
+    }
+
+    /**
+     * @expectedException Twig_Error_Syntax
+     * @dataProvider getFailingTestsForArray
+     */
+    public function testArraySyntaxError($template)
+    {
+        $env = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('cache' => false, 'autoescape' => false));
+        $parser = new Twig_Parser($env);
+
+        $parser->parse($env->tokenize($template, 'index'));
+    }
+
+    public function getFailingTestsForArray()
+    {
+        return array(
+            array('{{ [1, "a": "b"] }}'),
+            array('{{ {"a": "b", 2} }}'),
+        );
+    }
+
+    public function getTestsForArray()
+    {
+        return array(
+            // simple array
+            array('{{ [1, 2] }}', new Twig_Node_Expression_Array(array(
+                  new Twig_Node_Expression_Constant(0, 1),
+                  new Twig_Node_Expression_Constant(1, 1),
+
+                  new Twig_Node_Expression_Constant(1, 1),
+                  new Twig_Node_Expression_Constant(2, 1),
+                ), 1),
+            ),
+
+            // array with trailing ,
+            array('{{ [1, 2, ] }}', new Twig_Node_Expression_Array(array(
+                  new Twig_Node_Expression_Constant(0, 1),
+                  new Twig_Node_Expression_Constant(1, 1),
+
+                  new Twig_Node_Expression_Constant(1, 1),
+                  new Twig_Node_Expression_Constant(2, 1),
+                ), 1),
+            ),
+
+            // simple hash
+            array('{{ {"a": "b", "b": "c"} }}', new Twig_Node_Expression_Array(array(
+                  new Twig_Node_Expression_Constant('a', 1),
+                  new Twig_Node_Expression_Constant('b', 1),
+
+                  new Twig_Node_Expression_Constant('b', 1),
+                  new Twig_Node_Expression_Constant('c', 1),
+                ), 1),
+            ),
+
+            // hash with trailing ,
+            array('{{ {"a": "b", "b": "c", } }}', new Twig_Node_Expression_Array(array(
+                  new Twig_Node_Expression_Constant('a', 1),
+                  new Twig_Node_Expression_Constant('b', 1),
+
+                  new Twig_Node_Expression_Constant('b', 1),
+                  new Twig_Node_Expression_Constant('c', 1),
+                ), 1),
+            ),
+
+            // hash in an array
+            array('{{ [1, {"a": "b", "b": "c"}] }}', new Twig_Node_Expression_Array(array(
+                  new Twig_Node_Expression_Constant(0, 1),
+                  new Twig_Node_Expression_Constant(1, 1),
+
+                  new Twig_Node_Expression_Constant(1, 1),
+                  new Twig_Node_Expression_Array(array(
+                        new Twig_Node_Expression_Constant('a', 1),
+                        new Twig_Node_Expression_Constant('b', 1),
+
+                        new Twig_Node_Expression_Constant('b', 1),
+                        new Twig_Node_Expression_Constant('c', 1),
+                      ), 1),
+                ), 1),
+            ),
+
+            // array in a hash
+            array('{{ {"a": [1, 2], "b": "c"} }}', new Twig_Node_Expression_Array(array(
+                  new Twig_Node_Expression_Constant('a', 1),
+                  new Twig_Node_Expression_Array(array(
+                        new Twig_Node_Expression_Constant(0, 1),
+                        new Twig_Node_Expression_Constant(1, 1),
+
+                        new Twig_Node_Expression_Constant(1, 1),
+                        new Twig_Node_Expression_Constant(2, 1),
+                      ), 1),
+                  new Twig_Node_Expression_Constant('b', 1),
+                  new Twig_Node_Expression_Constant('c', 1),
+                ), 1),
+            ),
+        );
+    }
+
+    /**
+     * @expectedException Twig_Error_Syntax
+     */
+    public function testStringExpressionDoesNotConcatenateTwoConsecutiveStrings()
+    {
+        $env = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('cache' => false, 'autoescape' => false, 'optimizations' => 0));
+        $stream = $env->tokenize('{{ "a" "b" }}', 'index');
+        $parser = new Twig_Parser($env);
+
+        $parser->parse($stream);
+    }
+
+    /**
+     * @dataProvider getTestsForString
+     */
+    public function testStringExpression($template, $expected)
+    {
+        $env = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('cache' => false, 'autoescape' => false, 'optimizations' => 0));
+        $stream = $env->tokenize($template, 'index');
+        $parser = new Twig_Parser($env);
+
+        $this->assertEquals($expected, $parser->parse($stream)->getNode('body')->getNode(0)->getNode('expr'));
+    }
+
+    public function getTestsForString()
+    {
+        return array(
+            array(
+                '{{ "foo" }}', new Twig_Node_Expression_Constant('foo', 1),
+            ),
+            array(
+                '{{ "foo #{bar}" }}', new Twig_Node_Expression_Binary_Concat(
+                    new Twig_Node_Expression_Constant('foo ', 1),
+                    new Twig_Node_Expression_Name('bar', 1),
+                    1
+                ),
+            ),
+            array(
+                '{{ "foo #{bar} baz" }}', new Twig_Node_Expression_Binary_Concat(
+                    new Twig_Node_Expression_Binary_Concat(
+                        new Twig_Node_Expression_Constant('foo ', 1),
+                        new Twig_Node_Expression_Name('bar', 1),
+                        1
+                    ),
+                    new Twig_Node_Expression_Constant(' baz', 1),
+                    1
+                ),
+            ),
+
+            array(
+                '{{ "foo #{"foo #{bar} baz"} baz" }}', new Twig_Node_Expression_Binary_Concat(
+                    new Twig_Node_Expression_Binary_Concat(
+                        new Twig_Node_Expression_Constant('foo ', 1),
+                        new Twig_Node_Expression_Binary_Concat(
+                            new Twig_Node_Expression_Binary_Concat(
+                                new Twig_Node_Expression_Constant('foo ', 1),
+                                new Twig_Node_Expression_Name('bar', 1),
+                                1
+                            ),
+                            new Twig_Node_Expression_Constant(' baz', 1),
+                            1
+                        ),
+                        1
+                    ),
+                    new Twig_Node_Expression_Constant(' baz', 1),
+                    1
+                ),
+            ),
+        );
+    }
+
+    /**
+     * @expectedException Twig_Error_Syntax
+     */
+    public function testAttributeCallDoesNotSupportNamedArguments()
+    {
+        $env = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('cache' => false, 'autoescape' => false));
+        $parser = new Twig_Parser($env);
+
+        $parser->parse($env->tokenize('{{ foo.bar(name="Foo") }}', 'index'));
+    }
+
+    /**
+     * @expectedException Twig_Error_Syntax
+     */
+    public function testMacroCallDoesNotSupportNamedArguments()
+    {
+        $env = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('cache' => false, 'autoescape' => false));
+        $parser = new Twig_Parser($env);
+
+        $parser->parse($env->tokenize('{% from _self import foo %}{% macro foo() %}{% endmacro %}{{ foo(name="Foo") }}', 'index'));
+    }
+
+    /**
+     * @expectedException        Twig_Error_Syntax
+     * @expectedExceptionMessage An argument must be a name. Unexpected token "string" of value "a" ("name" expected) in "index" at line 1.
+     */
+    public function testMacroDefinitionDoesNotSupportNonNameVariableName()
+    {
+        $env = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('cache' => false, 'autoescape' => false));
+        $parser = new Twig_Parser($env);
+
+        $parser->parse($env->tokenize('{% macro foo("a") %}{% endmacro %}', 'index'));
+    }
+
+    /**
+     * @expectedException        Twig_Error_Syntax
+     * @expectedExceptionMessage A default value for an argument must be a constant (a boolean, a string, a number, or an array) in "index" at line 1
+     * @dataProvider             getMacroDefinitionDoesNotSupportNonConstantDefaultValues
+     */
+    public function testMacroDefinitionDoesNotSupportNonConstantDefaultValues($template)
+    {
+        $env = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('cache' => false, 'autoescape' => false));
+        $parser = new Twig_Parser($env);
+
+        $parser->parse($env->tokenize($template, 'index'));
+    }
+
+    public function getMacroDefinitionDoesNotSupportNonConstantDefaultValues()
+    {
+        return array(
+            array('{% macro foo(name = "a #{foo} a") %}{% endmacro %}'),
+            array('{% macro foo(name = [["b", "a #{foo} a"]]) %}{% endmacro %}'),
+        );
+    }
+
+    /**
+     * @dataProvider getMacroDefinitionSupportsConstantDefaultValues
+     */
+    public function testMacroDefinitionSupportsConstantDefaultValues($template)
+    {
+        $env = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('cache' => false, 'autoescape' => false));
+        $parser = new Twig_Parser($env);
+
+        $parser->parse($env->tokenize($template, 'index'));
+    }
+
+    public function getMacroDefinitionSupportsConstantDefaultValues()
+    {
+        return array(
+            array('{% macro foo(name = "aa") %}{% endmacro %}'),
+            array('{% macro foo(name = 12) %}{% endmacro %}'),
+            array('{% macro foo(name = true) %}{% endmacro %}'),
+            array('{% macro foo(name = ["a"]) %}{% endmacro %}'),
+            array('{% macro foo(name = [["a"]]) %}{% endmacro %}'),
+            array('{% macro foo(name = {a: "a"}) %}{% endmacro %}'),
+            array('{% macro foo(name = {a: {b: "a"}}) %}{% endmacro %}'),
+        );
+    }
+
+    /**
+     * @expectedException        Twig_Error_Syntax
+     * @expectedExceptionMessage Unknown "cycl" function. Did you mean "cycle" in "index" at line 1?
+     */
+    public function testUnknownFunction()
+    {
+        $env = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('cache' => false, 'autoescape' => false));
+        $parser = new Twig_Parser($env);
+
+        $parser->parse($env->tokenize('{{ cycl() }}', 'index'));
+    }
+
+    /**
+     * @expectedException        Twig_Error_Syntax
+     * @expectedExceptionMessage Unknown "foobar" function in "index" at line 1.
+     */
+    public function testUnknownFunctionWithoutSuggestions()
+    {
+        $env = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('cache' => false, 'autoescape' => false));
+        $parser = new Twig_Parser($env);
+
+        $parser->parse($env->tokenize('{{ foobar() }}', 'index'));
+    }
+
+    /**
+     * @expectedException        Twig_Error_Syntax
+     * @expectedExceptionMessage Unknown "lowe" filter. Did you mean "lower" in "index" at line 1?
+     */
+    public function testUnknownFilter()
+    {
+        $env = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('cache' => false, 'autoescape' => false));
+        $parser = new Twig_Parser($env);
+
+        $parser->parse($env->tokenize('{{ 1|lowe }}', 'index'));
+    }
+
+    /**
+     * @expectedException        Twig_Error_Syntax
+     * @expectedExceptionMessage Unknown "foobar" filter in "index" at line 1.
+     */
+    public function testUnknownFilterWithoutSuggestions()
+    {
+        $env = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('cache' => false, 'autoescape' => false));
+        $parser = new Twig_Parser($env);
+
+        $parser->parse($env->tokenize('{{ 1|foobar }}', 'index'));
+    }
+
+    /**
+     * @expectedException        Twig_Error_Syntax
+     * @expectedExceptionMessage Unknown "nul" test. Did you mean "null" in "index" at line 1
+     */
+    public function testUnknownTest()
+    {
+        $env = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('cache' => false, 'autoescape' => false));
+        $parser = new Twig_Parser($env);
+
+        $parser->parse($env->tokenize('{{ 1 is nul }}', 'index'));
+    }
+
+    /**
+     * @expectedException        Twig_Error_Syntax
+     * @expectedExceptionMessage Unknown "foobar" test in "index" at line 1.
+     */
+    public function testUnknownTestWithoutSuggestions()
+    {
+        $env = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('cache' => false, 'autoescape' => false));
+        $parser = new Twig_Parser($env);
+
+        $parser->parse($env->tokenize('{{ 1 is foobar }}', 'index'));
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Extension/CoreTest.php b/vendor/twig/twig/test/Twig/Tests/Extension/CoreTest.php
new file mode 100644
index 000000000..cd49e2f5e
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Extension/CoreTest.php
@@ -0,0 +1,158 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Extension_CoreTest extends PHPUnit_Framework_TestCase
+{
+    /**
+     * @dataProvider getRandomFunctionTestData
+     */
+    public function testRandomFunction($value, $expectedInArray)
+    {
+        $env = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+
+        for ($i = 0; $i < 100; ++$i) {
+            $this->assertTrue(in_array(twig_random($env, $value), $expectedInArray, true)); // assertContains() would not consider the type
+        }
+    }
+
+    public function getRandomFunctionTestData()
+    {
+        return array(
+            array(// array
+                array('apple', 'orange', 'citrus'),
+                array('apple', 'orange', 'citrus'),
+            ),
+            array(// Traversable
+                new ArrayObject(array('apple', 'orange', 'citrus')),
+                array('apple', 'orange', 'citrus'),
+            ),
+            array(// unicode string
+                'Ä€é',
+                array('Ä', '€', 'é'),
+            ),
+            array(// numeric but string
+                '123',
+                array('1', '2', '3'),
+            ),
+            array(// integer
+                5,
+                range(0, 5, 1),
+            ),
+            array(// float
+                5.9,
+                range(0, 5, 1),
+            ),
+            array(// negative
+                -2,
+                array(0, -1, -2),
+            ),
+        );
+    }
+
+    public function testRandomFunctionWithoutParameter()
+    {
+        $max = mt_getrandmax();
+
+        for ($i = 0; $i < 100; ++$i) {
+            $val = twig_random(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+            $this->assertTrue(is_int($val) && $val >= 0 && $val <= $max);
+        }
+    }
+
+    public function testRandomFunctionReturnsAsIs()
+    {
+        $this->assertSame('', twig_random(new Twig_Environment($this->getMock('Twig_LoaderInterface')), ''));
+        $this->assertSame('', twig_random(new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('charset' => null)), ''));
+
+        $instance = new stdClass();
+        $this->assertSame($instance, twig_random(new Twig_Environment($this->getMock('Twig_LoaderInterface')), $instance));
+    }
+
+    /**
+     * @expectedException Twig_Error_Runtime
+     */
+    public function testRandomFunctionOfEmptyArrayThrowsException()
+    {
+        twig_random(new Twig_Environment($this->getMock('Twig_LoaderInterface')), array());
+    }
+
+    public function testRandomFunctionOnNonUTF8String()
+    {
+        if (!function_exists('iconv') && !function_exists('mb_convert_encoding')) {
+            $this->markTestSkipped('needs iconv or mbstring');
+        }
+
+        $twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+        $twig->setCharset('ISO-8859-1');
+
+        $text = twig_convert_encoding('Äé', 'ISO-8859-1', 'UTF-8');
+        for ($i = 0; $i < 30; ++$i) {
+            $rand = twig_random($twig, $text);
+            $this->assertTrue(in_array(twig_convert_encoding($rand, 'UTF-8', 'ISO-8859-1'), array('Ä', 'é'), true));
+        }
+    }
+
+    public function testReverseFilterOnNonUTF8String()
+    {
+        if (!function_exists('iconv') && !function_exists('mb_convert_encoding')) {
+            $this->markTestSkipped('needs iconv or mbstring');
+        }
+
+        $twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+        $twig->setCharset('ISO-8859-1');
+
+        $input = twig_convert_encoding('Äé', 'ISO-8859-1', 'UTF-8');
+        $output = twig_convert_encoding(twig_reverse_filter($twig, $input), 'UTF-8', 'ISO-8859-1');
+
+        $this->assertEquals($output, 'éÄ');
+    }
+
+    public function testCustomEscaper()
+    {
+        $twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+        $twig->getExtension('core')->setEscaper('foo', 'foo_escaper_for_test');
+
+        $this->assertEquals('fooUTF-8', twig_escape_filter($twig, 'foo', 'foo'));
+        $this->assertEquals('UTF-8', twig_escape_filter($twig, null, 'foo'));
+        $this->assertEquals('42UTF-8', twig_escape_filter($twig, 42, 'foo'));
+    }
+
+    /**
+     * @expectedException Twig_Error_Runtime
+     */
+    public function testUnknownCustomEscaper()
+    {
+        twig_escape_filter(new Twig_Environment($this->getMock('Twig_LoaderInterface')), 'foo', 'bar');
+    }
+
+    public function testTwigFirst()
+    {
+        $twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+        $this->assertEquals('a', twig_first($twig, 'abc'));
+        $this->assertEquals(1, twig_first($twig, array(1, 2, 3)));
+        $this->assertSame('', twig_first($twig, null));
+        $this->assertSame('', twig_first($twig, ''));
+    }
+
+    public function testTwigLast()
+    {
+        $twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+        $this->assertEquals('c', twig_last($twig, 'abc'));
+        $this->assertEquals(3, twig_last($twig, array(1, 2, 3)));
+        $this->assertSame('', twig_last($twig, null));
+        $this->assertSame('', twig_last($twig, ''));
+    }
+}
+
+function foo_escaper_for_test(Twig_Environment $env, $string, $charset)
+{
+    return $string.$charset;
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Extension/SandboxTest.php b/vendor/twig/twig/test/Twig/Tests/Extension/SandboxTest.php
new file mode 100644
index 000000000..bfaa62b04
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Extension/SandboxTest.php
@@ -0,0 +1,220 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Extension_SandboxTest extends PHPUnit_Framework_TestCase
+{
+    protected static $params, $templates;
+
+    protected function setUp()
+    {
+        self::$params = array(
+            'name' => 'Fabien',
+            'obj' => new FooObject(),
+            'arr' => array('obj' => new FooObject()),
+        );
+
+        self::$templates = array(
+            '1_basic1' => '{{ obj.foo }}',
+            '1_basic2' => '{{ name|upper }}',
+            '1_basic3' => '{% if name %}foo{% endif %}',
+            '1_basic4' => '{{ obj.bar }}',
+            '1_basic5' => '{{ obj }}',
+            '1_basic6' => '{{ arr.obj }}',
+            '1_basic7' => '{{ cycle(["foo","bar"], 1) }}',
+            '1_basic8' => '{{ obj.getfoobar }}{{ obj.getFooBar }}',
+            '1_basic9' => '{{ obj.foobar }}{{ obj.fooBar }}',
+            '1_basic' => '{% if obj.foo %}{{ obj.foo|upper }}{% endif %}',
+            '1_layout' => '{% block content %}{% endblock %}',
+            '1_child' => "{% extends \"1_layout\" %}\n{% block content %}\n{{ \"a\"|json_encode }}\n{% endblock %}",
+        );
+    }
+
+    /**
+     * @expectedException        Twig_Sandbox_SecurityError
+     * @expectedExceptionMessage Filter "json_encode" is not allowed in "1_child" at line 3.
+     */
+    public function testSandboxWithInheritance()
+    {
+        $twig = $this->getEnvironment(true, array(), self::$templates, array('block'));
+        $twig->loadTemplate('1_child')->render(array());
+    }
+
+    public function testSandboxGloballySet()
+    {
+        $twig = $this->getEnvironment(false, array(), self::$templates);
+        $this->assertEquals('FOO', $twig->loadTemplate('1_basic')->render(self::$params), 'Sandbox does nothing if it is disabled globally');
+
+        $twig = $this->getEnvironment(true, array(), self::$templates);
+        try {
+            $twig->loadTemplate('1_basic1')->render(self::$params);
+            $this->fail('Sandbox throws a SecurityError exception if an unallowed method is called');
+        } catch (Twig_Sandbox_SecurityError $e) {
+        }
+
+        $twig = $this->getEnvironment(true, array(), self::$templates);
+        try {
+            $twig->loadTemplate('1_basic2')->render(self::$params);
+            $this->fail('Sandbox throws a SecurityError exception if an unallowed filter is called');
+        } catch (Twig_Sandbox_SecurityError $e) {
+        }
+
+        $twig = $this->getEnvironment(true, array(), self::$templates);
+        try {
+            $twig->loadTemplate('1_basic3')->render(self::$params);
+            $this->fail('Sandbox throws a SecurityError exception if an unallowed tag is used in the template');
+        } catch (Twig_Sandbox_SecurityError $e) {
+        }
+
+        $twig = $this->getEnvironment(true, array(), self::$templates);
+        try {
+            $twig->loadTemplate('1_basic4')->render(self::$params);
+            $this->fail('Sandbox throws a SecurityError exception if an unallowed property is called in the template');
+        } catch (Twig_Sandbox_SecurityError $e) {
+        }
+
+        $twig = $this->getEnvironment(true, array(), self::$templates);
+        try {
+            $twig->loadTemplate('1_basic5')->render(self::$params);
+            $this->fail('Sandbox throws a SecurityError exception if an unallowed method (__toString()) is called in the template');
+        } catch (Twig_Sandbox_SecurityError $e) {
+        }
+
+        $twig = $this->getEnvironment(true, array(), self::$templates);
+        try {
+            $twig->loadTemplate('1_basic6')->render(self::$params);
+            $this->fail('Sandbox throws a SecurityError exception if an unallowed method (__toString()) is called in the template');
+        } catch (Twig_Sandbox_SecurityError $e) {
+        }
+
+        $twig = $this->getEnvironment(true, array(), self::$templates);
+        try {
+            $twig->loadTemplate('1_basic7')->render(self::$params);
+            $this->fail('Sandbox throws a SecurityError exception if an unallowed function is called in the template');
+        } catch (Twig_Sandbox_SecurityError $e) {
+        }
+
+        $twig = $this->getEnvironment(true, array(), self::$templates, array(), array(), array('FooObject' => 'foo'));
+        FooObject::reset();
+        $this->assertEquals('foo', $twig->loadTemplate('1_basic1')->render(self::$params), 'Sandbox allow some methods');
+        $this->assertEquals(1, FooObject::$called['foo'], 'Sandbox only calls method once');
+
+        $twig = $this->getEnvironment(true, array(), self::$templates, array(), array(), array('FooObject' => '__toString'));
+        FooObject::reset();
+        $this->assertEquals('foo', $twig->loadTemplate('1_basic5')->render(self::$params), 'Sandbox allow some methods');
+        $this->assertEquals(1, FooObject::$called['__toString'], 'Sandbox only calls method once');
+
+        $twig = $this->getEnvironment(false, array(), self::$templates);
+        FooObject::reset();
+        $this->assertEquals('foo', $twig->loadTemplate('1_basic5')->render(self::$params), 'Sandbox allows __toString when sandbox disabled');
+        $this->assertEquals(1, FooObject::$called['__toString'], 'Sandbox only calls method once');
+
+        $twig = $this->getEnvironment(true, array(), self::$templates, array(), array('upper'));
+        $this->assertEquals('FABIEN', $twig->loadTemplate('1_basic2')->render(self::$params), 'Sandbox allow some filters');
+
+        $twig = $this->getEnvironment(true, array(), self::$templates, array('if'));
+        $this->assertEquals('foo', $twig->loadTemplate('1_basic3')->render(self::$params), 'Sandbox allow some tags');
+
+        $twig = $this->getEnvironment(true, array(), self::$templates, array(), array(), array(), array('FooObject' => 'bar'));
+        $this->assertEquals('bar', $twig->loadTemplate('1_basic4')->render(self::$params), 'Sandbox allow some properties');
+
+        $twig = $this->getEnvironment(true, array(), self::$templates, array(), array(), array(), array(), array('cycle'));
+        $this->assertEquals('bar', $twig->loadTemplate('1_basic7')->render(self::$params), 'Sandbox allow some functions');
+
+        foreach (array('getfoobar', 'getFoobar', 'getFooBar') as $name) {
+            $twig = $this->getEnvironment(true, array(), self::$templates, array(), array(), array('FooObject' => $name));
+            FooObject::reset();
+            $this->assertEquals('foobarfoobar', $twig->loadTemplate('1_basic8')->render(self::$params), 'Sandbox allow methods in a case-insensitive way');
+            $this->assertEquals(2, FooObject::$called['getFooBar'], 'Sandbox only calls method once');
+
+            $this->assertEquals('foobarfoobar', $twig->loadTemplate('1_basic9')->render(self::$params), 'Sandbox allow methods via shortcut names (ie. without get/set)');
+        }
+    }
+
+    public function testSandboxLocallySetForAnInclude()
+    {
+        self::$templates = array(
+            '2_basic' => '{{ obj.foo }}{% include "2_included" %}{{ obj.foo }}',
+            '2_included' => '{% if obj.foo %}{{ obj.foo|upper }}{% endif %}',
+        );
+
+        $twig = $this->getEnvironment(false, array(), self::$templates);
+        $this->assertEquals('fooFOOfoo', $twig->loadTemplate('2_basic')->render(self::$params), 'Sandbox does nothing if disabled globally and sandboxed not used for the include');
+
+        self::$templates = array(
+            '3_basic' => '{{ obj.foo }}{% sandbox %}{% include "3_included" %}{% endsandbox %}{{ obj.foo }}',
+            '3_included' => '{% if obj.foo %}{{ obj.foo|upper }}{% endif %}',
+        );
+
+        $twig = $this->getEnvironment(true, array(), self::$templates);
+        try {
+            $twig->loadTemplate('3_basic')->render(self::$params);
+            $this->fail('Sandbox throws a SecurityError exception when the included file is sandboxed');
+        } catch (Twig_Sandbox_SecurityError $e) {
+        }
+    }
+
+    public function testMacrosInASandbox()
+    {
+        $twig = $this->getEnvironment(true, array('autoescape' => 'html'), array('index' => <<<EOF
+{%- import _self as macros %}
+
+{%- macro test(text) %}<p>{{ text }}</p>{% endmacro %}
+
+{{- macros.test('username') }}
+EOF
+        ), array('macro', 'import'), array('escape'));
+
+        $this->assertEquals('<p>username</p>', $twig->loadTemplate('index')->render(array()));
+    }
+
+    protected function getEnvironment($sandboxed, $options, $templates, $tags = array(), $filters = array(), $methods = array(), $properties = array(), $functions = array())
+    {
+        $loader = new Twig_Loader_Array($templates);
+        $twig = new Twig_Environment($loader, array_merge(array('debug' => true, 'cache' => false, 'autoescape' => false), $options));
+        $policy = new Twig_Sandbox_SecurityPolicy($tags, $filters, $methods, $properties, $functions);
+        $twig->addExtension(new Twig_Extension_Sandbox($policy, $sandboxed));
+
+        return $twig;
+    }
+}
+
+class FooObject
+{
+    public static $called = array('__toString' => 0, 'foo' => 0, 'getFooBar' => 0);
+
+    public $bar = 'bar';
+
+    public static function reset()
+    {
+        self::$called = array('__toString' => 0, 'foo' => 0, 'getFooBar' => 0);
+    }
+
+    public function __toString()
+    {
+        ++self::$called['__toString'];
+
+        return 'foo';
+    }
+
+    public function foo()
+    {
+        ++self::$called['foo'];
+
+        return 'foo';
+    }
+
+    public function getFooBar()
+    {
+        ++self::$called['getFooBar'];
+
+        return 'foobar';
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/FileCachingTest.php b/vendor/twig/twig/test/Twig/Tests/FileCachingTest.php
new file mode 100644
index 000000000..d9c02c077
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/FileCachingTest.php
@@ -0,0 +1,63 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+require_once dirname(__FILE__).'/FilesystemHelper.php';
+
+class Twig_Tests_FileCachingTest extends PHPUnit_Framework_TestCase
+{
+    private $env;
+    private $tmpDir;
+
+    protected function setUp()
+    {
+        $this->tmpDir = sys_get_temp_dir().'/TwigTests';
+        if (!file_exists($this->tmpDir)) {
+            @mkdir($this->tmpDir, 0777, true);
+        }
+
+        if (!is_writable($this->tmpDir)) {
+            $this->markTestSkipped(sprintf('Unable to run the tests as "%s" is not writable.', $this->tmpDir));
+        }
+
+        $this->env = new Twig_Environment(new Twig_Loader_Array(array('index' => 'index', 'index2' => 'index2')), array('cache' => $this->tmpDir));
+    }
+
+    protected function tearDown()
+    {
+        Twig_Tests_FilesystemHelper::removeDir($this->tmpDir);
+    }
+
+    /**
+     * @group legacy
+     */
+    public function testWritingCacheFiles()
+    {
+        $name = 'index';
+        $this->env->loadTemplate($name);
+        $cacheFileName = $this->env->getCacheFilename($name);
+
+        $this->assertTrue(file_exists($cacheFileName), 'Cache file does not exist.');
+    }
+
+    /**
+     * @group legacy
+     */
+    public function testClearingCacheFiles()
+    {
+        $name = 'index2';
+        $this->env->loadTemplate($name);
+        $cacheFileName = $this->env->getCacheFilename($name);
+
+        $this->assertTrue(file_exists($cacheFileName), 'Cache file does not exist.');
+        $this->env->clearCacheFiles();
+        $this->assertFalse(file_exists($cacheFileName), 'Cache file was not cleared.');
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/FileExtensionEscapingStrategyTest.php b/vendor/twig/twig/test/Twig/Tests/FileExtensionEscapingStrategyTest.php
new file mode 100644
index 000000000..b310a5be3
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/FileExtensionEscapingStrategyTest.php
@@ -0,0 +1,51 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_FileExtensionEscapingStrategyTest extends PHPUnit_Framework_TestCase
+{
+    /**
+     * @dataProvider getGuessData
+     */
+    public function testGuess($strategy, $filename)
+    {
+        $this->assertSame($strategy, Twig_FileExtensionEscapingStrategy::guess($filename));
+    }
+
+    public function getGuessData()
+    {
+        return array(
+            // default
+            array('html', 'foo.html'),
+            array('html', 'foo.html.twig'),
+            array('html', 'foo'),
+            array('html', 'foo.bar.twig'),
+            array('html', 'foo.txt/foo'),
+            array('html', 'foo.txt/foo.js/'),
+
+            // css
+            array('css', 'foo.css'),
+            array('css', 'foo.css.twig'),
+            array('css', 'foo.twig.css'),
+            array('css', 'foo.js.css'),
+            array('css', 'foo.js.css.twig'),
+
+            // js
+            array('js', 'foo.js'),
+            array('js', 'foo.js.twig'),
+            array('js', 'foo.txt/foo.js'),
+            array('js', 'foo.txt.twig/foo.js'),
+
+            // txt
+            array(false, 'foo.txt'),
+            array(false, 'foo.txt.twig'),
+        );
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/FilesystemHelper.php b/vendor/twig/twig/test/Twig/Tests/FilesystemHelper.php
new file mode 100644
index 000000000..0e315e8f7
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/FilesystemHelper.php
@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_FilesystemHelper
+{
+    public static function removeDir($dir)
+    {
+        $iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($dir, PHP_VERSION_ID < 50300 ? 0 : FilesystemIterator::SKIP_DOTS), RecursiveIteratorIterator::CHILD_FIRST);
+        foreach ($iterator as $filename => $fileInfo) {
+            if ($iterator->isDot()) {
+                continue;
+            }
+
+            if ($fileInfo->isDir()) {
+                rmdir($filename);
+            } else {
+                unlink($filename);
+            }
+        }
+        rmdir($dir);
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/autoescape/filename.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/autoescape/filename.test
new file mode 100644
index 000000000..b091ad34d
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/autoescape/filename.test
@@ -0,0 +1,18 @@
+--TEST--
+"filename" autoescape strategy
+--TEMPLATE--
+{{ br -}}
+{{ include('index.html.twig') -}}
+{{ include('index.txt.twig') -}}
+--TEMPLATE(index.html.twig)--
+{{ br -}}
+--TEMPLATE(index.txt.twig)--
+{{ br -}}
+--DATA--
+return array('br' => '<br />')
+--CONFIG--
+return array('autoescape' => 'filename')
+--EXPECT--
+&lt;br /&gt;
+&lt;br /&gt;
+<br />
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/errors/base.html b/vendor/twig/twig/test/Twig/Tests/Fixtures/errors/base.html
new file mode 100644
index 000000000..cb0dbe444
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/errors/base.html
@@ -0,0 +1 @@
+{% block content %}{% endblock %}
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/errors/index.html b/vendor/twig/twig/test/Twig/Tests/Fixtures/errors/index.html
new file mode 100644
index 000000000..df57c822f
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/errors/index.html
@@ -0,0 +1,7 @@
+{% extends 'base.html' %}
+{% block content %}
+    {{ foo.bar }}
+{% endblock %}
+{% block foo %}
+    {{ foo.bar }}
+{% endblock %}
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/multiline_array_with_undefined_variable.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/multiline_array_with_undefined_variable.test
new file mode 100644
index 000000000..ce49165dc
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/multiline_array_with_undefined_variable.test
@@ -0,0 +1,18 @@
+--TEST--
+Exception for multiline array with undefined variable
+--TEMPLATE--
+{% set foo = {
+   foo: 'foo',
+   bar: 'bar',
+
+
+   foobar: foobar,
+
+
+
+   foo2: foo2,
+} %}
+--DATA--
+return array('foobar' => 'foobar')
+--EXCEPTION--
+Twig_Error_Runtime: Variable "foo2" does not exist in "index.twig" at line 11
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/multiline_array_with_undefined_variable_again.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/multiline_array_with_undefined_variable_again.test
new file mode 100644
index 000000000..e3c040f9c
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/multiline_array_with_undefined_variable_again.test
@@ -0,0 +1,18 @@
+--TEST--
+Exception for multiline array with undefined variable
+--TEMPLATE--
+{% set foo = {
+   foo: 'foo',
+   bar: 'bar',
+
+
+   foobar: foobar,
+
+
+
+   foo2: foo2,
+} %}
+--DATA--
+return array()
+--EXCEPTION--
+Twig_Error_Runtime: Variable "foobar" does not exist in "index.twig" at line 7
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/multiline_function_with_undefined_variable.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/multiline_function_with_undefined_variable.test
new file mode 100644
index 000000000..d799a3906
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/multiline_function_with_undefined_variable.test
@@ -0,0 +1,12 @@
+--TEST--
+Exception for multile function with undefined variable
+--TEMPLATE--
+{{ include('foo',
+   with_context=with_context
+) }}
+--TEMPLATE(foo)--
+Foo
+--DATA--
+return array()
+--EXCEPTION--
+Twig_Error_Runtime: Variable "with_context" does not exist in "index.twig" at line 3
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/multiline_function_with_unknown_argument.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/multiline_function_with_unknown_argument.test
new file mode 100644
index 000000000..64761fcf1
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/multiline_function_with_unknown_argument.test
@@ -0,0 +1,9 @@
+--TEST--
+Exception for multiline function with unknown argument
+--TEMPLATE--
+{{ include('foo',
+   with_context=True,
+   invalid=False
+) }}
+--EXCEPTION--
+Twig_Error_Syntax: Unknown argument "invalid" for function "include(template, variables, with_context, ignore_missing, sandboxed)" in "index.twig" at line 4.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/multiline_tag_with_undefined_variable.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/multiline_tag_with_undefined_variable.test
new file mode 100644
index 000000000..096a5dbf5
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/multiline_tag_with_undefined_variable.test
@@ -0,0 +1,12 @@
+--TEST--
+Exception for multiline tag with undefined variable
+--TEMPLATE--
+{% include 'foo'
+   with vars
+%}
+--TEMPLATE(foo)--
+Foo
+--DATA--
+return array()
+--EXCEPTION--
+Twig_Error_Runtime: Variable "vars" does not exist in "index.twig" at line 3
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/syntax_error_in_reused_template.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/syntax_error_in_reused_template.test
new file mode 100644
index 000000000..9ca418b22
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/syntax_error_in_reused_template.test
@@ -0,0 +1,10 @@
+--TEST--
+Exception for syntax error in reused template
+--TEMPLATE--
+{% use 'foo.twig' %}
+--TEMPLATE(foo.twig)--
+{% block bar %}
+    {% do node.data = 5 %}
+{% endblock %}
+--EXCEPTION--
+Twig_Error_Syntax: Unexpected token "operator" of value "=" ("end of statement block" expected) in "foo.twig" at line 3.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/unclosed_tag.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/unclosed_tag.test
new file mode 100644
index 000000000..2c35ad564
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/unclosed_tag.test
@@ -0,0 +1,20 @@
+--TEST--
+Exception for an unclosed tag
+--TEMPLATE--
+{% block foo %}
+     {% if foo %}
+
+
+
+
+         {% for i in fo %}
+
+
+
+         {% endfor %}
+
+
+
+{% endblock %}
+--EXCEPTION--
+Twig_Error_Syntax: Unexpected "endblock" tag (expecting closing tag for the "if" tag defined near line 4) in "index.twig" at line 16.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/undefined_parent.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/undefined_parent.test
new file mode 100644
index 000000000..c8e7a0973
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/undefined_parent.test
@@ -0,0 +1,8 @@
+--TEST--
+Exception for an undefined parent
+--TEMPLATE--
+{% extends 'foo.html' %}
+
+{% set foo = "foo" %}
+--EXCEPTION--
+Twig_Error_Loader: Template "foo.html" is not defined in "index.twig" at line 2.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/undefined_template_in_child_template.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/undefined_template_in_child_template.test
new file mode 100644
index 000000000..1992510b2
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/undefined_template_in_child_template.test
@@ -0,0 +1,15 @@
+--TEST--
+Exception for an undefined template in a child template
+--TEMPLATE--
+{% extends 'base.twig' %}
+
+{% block sidebar %}
+    {{ include('include.twig') }}
+{% endblock %}
+--TEMPLATE(base.twig)--
+{% block sidebar %}
+{% endblock %}
+--DATA--
+return array()
+--EXCEPTION--
+Twig_Error_Loader: Template "include.twig" is not defined in "index.twig" at line 5.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/undefined_trait.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/undefined_trait.test
new file mode 100644
index 000000000..6679fbe13
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/exceptions/undefined_trait.test
@@ -0,0 +1,9 @@
+--TEST--
+Exception for an undefined trait
+--TEMPLATE--
+{% use 'foo' with foobar as bar %}
+--TEMPLATE(foo)--
+{% block bar %}
+{% endblock %}
+--EXCEPTION--
+Twig_Error_Runtime: Block "foobar" is not defined in trait "foo" in "index.twig" at line 2.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/array.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/array.test
new file mode 100644
index 000000000..c69b1192f
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/array.test
@@ -0,0 +1,61 @@
+--TEST--
+Twig supports array notation
+--TEMPLATE--
+{# empty array #}
+{{ []|join(',') }}
+
+{{ [1, 2]|join(',') }}
+{{ ['foo', "bar"]|join(',') }}
+{{ {0: 1, 'foo': 'bar'}|join(',') }}
+{{ {0: 1, 'foo': 'bar'}|keys|join(',') }}
+
+{{ {0: 1, foo: 'bar'}|join(',') }}
+{{ {0: 1, foo: 'bar'}|keys|join(',') }}
+
+{# nested arrays #}
+{% set a = [1, 2, [1, 2], {'foo': {'foo': 'bar'}}] %}
+{{ a[2]|join(',') }}
+{{ a[3]["foo"]|join(',') }}
+
+{# works even if [] is used inside the array #}
+{{ [foo[bar]]|join(',') }}
+
+{# elements can be any expression #}
+{{ ['foo'|upper, bar|upper, bar == foo]|join(',') }}
+
+{# arrays can have a trailing , like in PHP #}
+{{
+  [
+    1,
+    2,
+  ]|join(',')
+}}
+
+{# keys can be any expression #}
+{% set a = 1 %}
+{% set b = "foo" %}
+{% set ary = { (a): 'a', (b): 'b', 'c': 'c', (a ~ b): 'd' } %}
+{{ ary|keys|join(',') }}
+{{ ary|join(',') }}
+--DATA--
+return array('bar' => 'bar', 'foo' => array('bar' => 'bar'))
+--EXPECT--
+1,2
+foo,bar
+1,bar
+0,foo
+
+1,bar
+0,foo
+
+1,2
+bar
+
+bar
+
+FOO,BAR,
+
+1,2
+
+1,foo,c,1foo
+a,b,c,d
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/array_call.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/array_call.test
new file mode 100644
index 000000000..f3df328fe
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/array_call.test
@@ -0,0 +1,14 @@
+--TEST--
+Twig supports method calls
+--TEMPLATE--
+{{ items.foo }}
+{{ items['foo'] }}
+{{ items[foo] }}
+{{ items[items[foo]] }}
+--DATA--
+return array('foo' => 'bar', 'items' => array('foo' => 'bar', 'bar' => 'foo'))
+--EXPECT--
+bar
+bar
+foo
+bar
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/binary.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/binary.test
new file mode 100644
index 000000000..f5e68456d
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/binary.test
@@ -0,0 +1,46 @@
+--TEST--
+Twig supports binary operations (+, -, *, /, ~, %, and, or)
+--TEMPLATE--
+{{ 1 + 1 }}
+{{ 2 - 1 }}
+{{ 2 * 2 }}
+{{ 2 / 2 }}
+{{ 3 % 2 }}
+{{ 1 and 1 }}
+{{ 1 and 0 }}
+{{ 0 and 1 }}
+{{ 0 and 0 }}
+{{ 1 or 1 }}
+{{ 1 or 0 }}
+{{ 0 or 1 }}
+{{ 0 or 0 }}
+{{ 0 or 1 and 0 }}
+{{ 1 or 0 and 1 }}
+{{ "foo" ~ "bar" }}
+{{ foo ~ "bar" }}
+{{ "foo" ~ bar }}
+{{ foo ~ bar }}
+{{ 20 // 7 }}
+--DATA--
+return array('foo' => 'bar', 'bar' => 'foo')
+--EXPECT--
+2
+1
+4
+1
+1
+1
+
+
+
+1
+1
+1
+
+
+1
+foobar
+barbar
+foofoo
+barfoo
+2
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/bitwise.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/bitwise.test
new file mode 100644
index 000000000..74fe6cabb
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/bitwise.test
@@ -0,0 +1,14 @@
+--TEST--
+Twig supports bitwise operations
+--TEMPLATE--
+{{ 1 b-and 5 }}
+{{ 1 b-or 5 }}
+{{ 1 b-xor 5 }}
+{{ (1 and 0 b-or 0) is same as(1 and (0 b-or 0)) ? 'ok' : 'ko' }}
+--DATA--
+return array()
+--EXPECT--
+1
+5
+4
+ok
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/comparison.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/comparison.test
new file mode 100644
index 000000000..726b85075
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/comparison.test
@@ -0,0 +1,14 @@
+--TEST--
+Twig supports comparison operators (==, !=, <, >, >=, <=)
+--TEMPLATE--
+{{ 1 > 2 }}/{{ 1 > 1 }}/{{ 1 >= 2 }}/{{ 1 >= 1 }}
+{{ 1 < 2 }}/{{ 1 < 1 }}/{{ 1 <= 2 }}/{{ 1 <= 1 }}
+{{ 1 == 1 }}/{{ 1 == 2 }}
+{{ 1 != 1 }}/{{ 1 != 2 }}
+--DATA--
+return array()
+--EXPECT--
+///1
+1//1/1
+1/
+/1
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/divisibleby.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/divisibleby.test
new file mode 100644
index 000000000..238dd2790
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/divisibleby.test
@@ -0,0 +1,17 @@
+--TEST--
+Twig supports the "divisible by" operator
+--TEMPLATE--
+{{ 8 is divisible by(2) ? 'OK' }}
+{{ 8 is not divisible by(3) ? 'OK' }}
+{{ 8 is    divisible   by   (2) ? 'OK' }}
+{{ 8 is not
+   divisible
+   by
+   (3) ? 'OK' }}
+--DATA--
+return array()
+--EXPECT--
+OK
+OK
+OK
+OK
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/dotdot.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/dotdot.test
new file mode 100644
index 000000000..9cd0676ce
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/dotdot.test
@@ -0,0 +1,20 @@
+--TEST--
+Twig supports the .. operator
+--TEMPLATE--
+{% for i in 0..10 %}{{ i }} {% endfor %}
+
+{% for letter in 'a'..'z' %}{{ letter }} {% endfor %}
+
+{% for letter in 'a'|upper..'z'|upper %}{{ letter }} {% endfor %}
+
+{% for i in foo[0]..foo[1] %}{{ i }} {% endfor %}
+
+{% for i in 0 + 1 .. 10 - 1 %}{{ i }} {% endfor %}
+--DATA--
+return array('foo' => array(1, 10))
+--EXPECT--
+0 1 2 3 4 5 6 7 8 9 10 
+a b c d e f g h i j k l m n o p q r s t u v w x y z 
+A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 
+1 2 3 4 5 6 7 8 9 10 
+1 2 3 4 5 6 7 8 9
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/ends_with.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/ends_with.test
new file mode 100644
index 000000000..9ad5e5e8e
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/ends_with.test
@@ -0,0 +1,26 @@
+--TEST--
+Twig supports the "ends with" operator
+--TEMPLATE--
+{{ 'foo' ends with 'o' ? 'OK' : 'KO' }}
+{{ not ('foo' ends with 'f') ? 'OK' : 'KO' }}
+{{ not ('foo' ends with 'foowaytoolong') ? 'OK' : 'KO' }}
+{{ 'foo' ends with '' ? 'OK' : 'KO' }}
+{{ '1' ends with true ? 'OK' : 'KO' }}
+{{ 1 ends with true ? 'OK' : 'KO' }}
+{{ 0 ends with false ? 'OK' : 'KO' }}
+{{ '' ends with false ? 'OK' : 'KO' }}
+{{ false ends with false ? 'OK' : 'KO' }}
+{{ false ends with '' ? 'OK' : 'KO' }}
+--DATA--
+return array()
+--EXPECT--
+OK
+OK
+OK
+OK
+KO
+KO
+KO
+KO
+KO
+KO
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/grouping.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/grouping.test
new file mode 100644
index 000000000..79f8e0b0d
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/grouping.test
@@ -0,0 +1,8 @@
+--TEST--
+Twig supports grouping of expressions
+--TEMPLATE--
+{{ (2 + 2) / 2 }}
+--DATA--
+return array()
+--EXPECT--
+2
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/literals.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/literals.test
new file mode 100644
index 000000000..7ae3bae95
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/literals.test
@@ -0,0 +1,22 @@
+--TEST--
+Twig supports literals
+--TEMPLATE--
+1 {{ true }}
+2 {{ TRUE }}
+3 {{ false }}
+4 {{ FALSE }}
+5 {{ none }}
+6 {{ NONE }}
+7 {{ null }}
+8 {{ NULL }}
+--DATA--
+return array()
+--EXPECT--
+1 1
+2 1
+3 
+4 
+5 
+6 
+7 
+8 
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/magic_call.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/magic_call.test
new file mode 100644
index 000000000..159db96f5
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/magic_call.test
@@ -0,0 +1,27 @@
+--TEST--
+Twig supports __call() for attributes
+--TEMPLATE--
+{{ foo.foo }}
+{{ foo.bar }}
+--DATA--
+class TestClassForMagicCallAttributes
+{
+  public function getBar()
+  {
+    return 'bar_from_getbar';
+  }
+
+  public function __call($method, $arguments)
+  {
+    if ('foo' === $method)
+    {
+      return 'foo_from_call';
+    }
+
+    return false;
+  }
+}
+return array('foo' => new TestClassForMagicCallAttributes())
+--EXPECT--
+foo_from_call
+bar_from_getbar
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/matches.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/matches.test
new file mode 100644
index 000000000..b6c771657
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/matches.test
@@ -0,0 +1,12 @@
+--TEST--
+Twig supports the "matches" operator
+--TEMPLATE--
+{{ 'foo' matches '/o/' ? 'OK' : 'KO' }}
+{{ 'foo' matches '/^fo/' ? 'OK' : 'KO' }}
+{{ 'foo' matches '/O/i' ? 'OK' : 'KO' }}
+--DATA--
+return array()
+--EXPECT--
+OK
+OK
+OK
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/method_call.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/method_call.test
new file mode 100644
index 000000000..5f801e635
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/method_call.test
@@ -0,0 +1,28 @@
+--TEST--
+Twig supports method calls
+--TEMPLATE--
+{{ items.foo.foo }}
+{{ items.foo.getFoo() }}
+{{ items.foo.bar }}
+{{ items.foo['bar'] }}
+{{ items.foo.bar('a', 43) }}
+{{ items.foo.bar(foo) }}
+{{ items.foo.self.foo() }}
+{{ items.foo.is }}
+{{ items.foo.in }}
+{{ items.foo.not }}
+--DATA--
+return array('foo' => 'bar', 'items' => array('foo' => new TwigTestFoo(), 'bar' => 'foo'))
+--CONFIG--
+return array('strict_variables' => false)
+--EXPECT--
+foo
+foo
+bar
+
+bar_a-43
+bar_bar
+foo
+is
+in
+not
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/negative_numbers.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/negative_numbers.test
new file mode 100644
index 000000000..1853b1b06
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/negative_numbers.test
@@ -0,0 +1,18 @@
+--TEST--
+Twig manages negative numbers correctly
+--TEMPLATE--
+{{ -1 }}
+{{ - 1 }}
+{{ 5 - 1 }}
+{{ 5-1 }}
+{{ 5 + -1 }}
+{{ 5 + - 1 }}
+--DATA--
+return array()
+--EXPECT--
+-1
+-1
+4
+4
+4
+4
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/operators_as_variables.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/operators_as_variables.test
new file mode 100644
index 000000000..fe29d08bb
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/operators_as_variables.test
@@ -0,0 +1,16 @@
+--TEST--
+Twig allows to use named operators as variable names
+--TEMPLATE--
+{% for match in matches %}
+    {{- match }}
+{% endfor %}
+{{ in }}
+{{ is }}
+--DATA--
+return array('matches' => array(1, 2, 3), 'in' => 'in', 'is' => 'is')
+--EXPECT--
+1
+2
+3
+in
+is
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/postfix.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/postfix.test
new file mode 100644
index 000000000..542c35046
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/postfix.test
@@ -0,0 +1,22 @@
+--TEST--
+Twig parses postfix expressions
+--TEMPLATE--
+{% import _self as macros %}
+
+{% macro foo() %}foo{% endmacro %}
+
+{{ 'a' }}
+{{ 'a'|upper }}
+{{ ('a')|upper }}
+{{ -1|upper }}
+{{ macros.foo() }}
+{{ (macros).foo() }}
+--DATA--
+return array();
+--EXPECT--
+a
+A
+A
+-1
+foo
+foo
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/sameas.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/sameas.test
new file mode 100644
index 000000000..601201deb
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/sameas.test
@@ -0,0 +1,21 @@
+--TEST--
+Twig supports the "same as" operator
+--TEMPLATE--
+{{ 1 is same as(1) ? 'OK' }}
+{{ 1 is not same as(true) ? 'OK' }}
+{{ 1 is same as(1) ? 'OK' }}
+{{ 1 is not same as(true) ? 'OK' }}
+{{ 1 is   same    as   (1) ? 'OK' }}
+{{ 1 is not
+    same
+    as
+    (true) ? 'OK' }}
+--DATA--
+return array()
+--EXPECT--
+OK
+OK
+OK
+OK
+OK
+OK
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/starts_with.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/starts_with.test
new file mode 100644
index 000000000..75d331e90
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/starts_with.test
@@ -0,0 +1,27 @@
+--TEST--
+Twig supports the "starts with" operator
+--TEMPLATE--
+{{ 'foo' starts with 'f' ? 'OK' : 'KO' }}
+{{ not ('foo' starts with 'oo') ? 'OK' : 'KO' }}
+{{ not ('foo' starts with 'foowaytoolong') ? 'OK' : 'KO' }}
+{{ 'foo' starts      with 'f' ? 'OK' : 'KO' }}
+{{ 'foo' starts
+with 'f' ? 'OK' : 'KO' }}
+{{ 'foo' starts with '' ? 'OK' : 'KO' }}
+{{ '1' starts with true ? 'OK' : 'KO' }}
+{{ '' starts with false ? 'OK' : 'KO' }}
+{{ 'a' starts with false ? 'OK' : 'KO' }}
+{{ false starts with '' ? 'OK' : 'KO' }}
+--DATA--
+return array()
+--EXPECT--
+OK
+OK
+OK
+OK
+OK
+OK
+KO
+KO
+KO
+KO
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/strings.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/strings.test
new file mode 100644
index 000000000..a9116613e
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/strings.test
@@ -0,0 +1,10 @@
+--TEST--
+Twig supports string interpolation
+--TEMPLATE--
+{{ "foo #{"foo #{bar} baz"} baz" }}
+{{ "foo #{bar}#{bar} baz" }}
+--DATA--
+return array('bar' => 'BAR');
+--EXPECT--
+foo foo BAR baz baz
+foo BARBAR baz
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/ternary_operator.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/ternary_operator.test
new file mode 100644
index 000000000..0e6fa96e2
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/ternary_operator.test
@@ -0,0 +1,18 @@
+--TEST--
+Twig supports the ternary operator
+--TEMPLATE--
+{{ 1 ? 'YES' : 'NO' }}
+{{ 0 ? 'YES' : 'NO' }}
+{{ 0 ? 'YES' : (1 ? 'YES1' : 'NO1') }}
+{{ 0 ? 'YES' : (0 ? 'YES1' : 'NO1') }}
+{{ 1 == 1 ? 'foo<br />':'' }}
+{{ foo ~ (bar ? ('-' ~ bar) : '') }}
+--DATA--
+return array('foo' => 'foo', 'bar' => 'bar')
+--EXPECT--
+YES
+NO
+YES1
+NO1
+foo<br />
+foo-bar
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/ternary_operator_noelse.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/ternary_operator_noelse.test
new file mode 100644
index 000000000..fdc660fc5
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/ternary_operator_noelse.test
@@ -0,0 +1,10 @@
+--TEST--
+Twig supports the ternary operator
+--TEMPLATE--
+{{ 1 ? 'YES' }}
+{{ 0 ? 'YES' }}
+--DATA--
+return array()
+--EXPECT--
+YES
+
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/ternary_operator_nothen.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/ternary_operator_nothen.test
new file mode 100644
index 000000000..9057e8370
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/ternary_operator_nothen.test
@@ -0,0 +1,10 @@
+--TEST--
+Twig supports the ternary operator
+--TEMPLATE--
+{{ 'YES' ?: 'NO' }}
+{{ 0 ?: 'NO' }}
+--DATA--
+return array()
+--EXPECT--
+YES
+NO
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/two_word_operators_as_variables.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/two_word_operators_as_variables.test
new file mode 100644
index 000000000..0eaabb446
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/two_word_operators_as_variables.test
@@ -0,0 +1,8 @@
+--TEST--
+Twig does not allow to use two-word named operators as variable names
+--TEMPLATE--
+{{ starts with }}
+--DATA--
+return array()
+--EXCEPTION--
+Twig_Error_Syntax: Unexpected token "operator" of value "starts with" in "index.twig" at line 2.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/unary.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/unary.test
new file mode 100644
index 000000000..b79219a2a
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/unary.test
@@ -0,0 +1,12 @@
+--TEST--
+Twig supports unary operators (not, -, +)
+--TEMPLATE--
+{{ not 1 }}/{{ not 0 }}
+{{ +1 + 1 }}/{{ -1 - 1 }}
+{{ not (false or true) }}
+--DATA--
+return array()
+--EXPECT--
+/1
+2/-2
+
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/unary_macro_arguments.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/unary_macro_arguments.test
new file mode 100644
index 000000000..ad84a9c26
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/unary_macro_arguments.test
@@ -0,0 +1,22 @@
+--TEST--
+Twig manages negative numbers as default parameters
+--TEMPLATE--
+{% import _self as macros %}
+{{ macros.negative_number1() }}
+{{ macros.negative_number2() }}
+{{ macros.negative_number3() }}
+{{ macros.positive_number1() }}
+{{ macros.positive_number2() }}
+{% macro negative_number1(nb=-1) %}{{ nb }}{% endmacro %}
+{% macro negative_number2(nb = --1) %}{{ nb }}{% endmacro %}
+{% macro negative_number3(nb = - 1) %}{{ nb }}{% endmacro %}
+{% macro positive_number1(nb = +1) %}{{ nb }}{% endmacro %}
+{% macro positive_number2(nb = ++1) %}{{ nb }}{% endmacro %}
+--DATA--
+return array()
+--EXPECT--
+-1
+1
+-1
+1
+1
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/unary_precedence.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/unary_precedence.test
new file mode 100644
index 000000000..cc6eef8d2
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/expressions/unary_precedence.test
@@ -0,0 +1,14 @@
+--TEST--
+Twig unary operators precedence
+--TEMPLATE--
+{{ -1 - 1 }}
+{{ -1 - -1 }}
+{{ -1 * -1 }}
+{{ 4 / -1 * 5 }}
+--DATA--
+return array()
+--EXPECT--
+-2
+0
+1
+-20
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/abs.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/abs.test
new file mode 100644
index 000000000..27e93fd63
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/abs.test
@@ -0,0 +1,30 @@
+--TEST--
+"abs" filter
+--TEMPLATE--
+{{ (-5.5)|abs }}
+{{ (-5)|abs }}
+{{ (-0)|abs }}
+{{ 0|abs }}
+{{ 5|abs }}
+{{ 5.5|abs }}
+{{ number1|abs }}
+{{ number2|abs }}
+{{ number3|abs }}
+{{ number4|abs }}
+{{ number5|abs }}
+{{ number6|abs }}
+--DATA--
+return array('number1' => -5.5, 'number2' => -5, 'number3' => -0, 'number4' => 0, 'number5' => 5, 'number6' => 5.5)
+--EXPECT--
+5.5
+5
+0
+0
+5
+5.5
+5.5
+5
+0
+0
+5
+5.5
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/batch.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/batch.test
new file mode 100644
index 000000000..cb6de7f97
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/batch.test
@@ -0,0 +1,31 @@
+--TEST--
+"batch" filter
+--TEMPLATE--
+{% for row in items|batch(3) %}
+  <div class=row>
+  {% for column in row %}
+    <div class=item>{{ column }}</div>
+  {% endfor %}
+  </div>
+{% endfor %}
+--DATA--
+return array('items' => array('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j'))
+--EXPECT--
+<div class=row>
+      <div class=item>a</div>
+      <div class=item>b</div>
+      <div class=item>c</div>
+    </div>
+  <div class=row>
+      <div class=item>d</div>
+      <div class=item>e</div>
+      <div class=item>f</div>
+    </div>
+  <div class=row>
+      <div class=item>g</div>
+      <div class=item>h</div>
+      <div class=item>i</div>
+    </div>
+  <div class=row>
+      <div class=item>j</div>
+    </div>
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/batch_float.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/batch_float.test
new file mode 100644
index 000000000..e2ec4beb2
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/batch_float.test
@@ -0,0 +1,29 @@
+--TEST--
+"batch" filter
+--TEMPLATE--
+{% for row in items|batch(3.1) %}
+  <div class=row>
+  {% for column in row %}
+    <div class=item>{{ column }}</div>
+  {% endfor %}
+  </div>
+{% endfor %}
+--DATA--
+return array('items' => array('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j'))
+--EXPECT--
+<div class=row>
+      <div class=item>a</div>
+      <div class=item>b</div>
+      <div class=item>c</div>
+      <div class=item>d</div>
+    </div>
+  <div class=row>
+      <div class=item>e</div>
+      <div class=item>f</div>
+      <div class=item>g</div>
+      <div class=item>h</div>
+    </div>
+  <div class=row>
+      <div class=item>i</div>
+      <div class=item>j</div>
+    </div>
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/batch_with_empty_fill.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/batch_with_empty_fill.test
new file mode 100644
index 000000000..af996f246
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/batch_with_empty_fill.test
@@ -0,0 +1,37 @@
+--TEST--
+"batch" filter
+--TEMPLATE--
+<table>
+{% for row in items|batch(3, '') %}
+  <tr>
+  {% for column in row %}
+    <td>{{ column }}</td>
+  {% endfor %}
+  </tr>
+{% endfor %}
+</table>
+--DATA--
+return array('items' => array('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j'))
+--EXPECT--
+<table>
+  <tr>
+      <td>a</td>
+      <td>b</td>
+      <td>c</td>
+    </tr>
+  <tr>
+      <td>d</td>
+      <td>e</td>
+      <td>f</td>
+    </tr>
+  <tr>
+      <td>g</td>
+      <td>h</td>
+      <td>i</td>
+    </tr>
+  <tr>
+      <td>j</td>
+      <td></td>
+      <td></td>
+    </tr>
+</table>
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/batch_with_exact_elements.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/batch_with_exact_elements.test
new file mode 100644
index 000000000..72483f4b5
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/batch_with_exact_elements.test
@@ -0,0 +1,33 @@
+--TEST--
+"batch" filter
+--TEMPLATE--
+{% for row in items|batch(3, 'fill') %}
+  <div class=row>
+  {% for column in row %}
+    <div class=item>{{ column }}</div>
+  {% endfor %}
+  </div>
+{% endfor %}
+--DATA--
+return array('items' => array('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l'))
+--EXPECT--
+<div class=row>
+      <div class=item>a</div>
+      <div class=item>b</div>
+      <div class=item>c</div>
+    </div>
+  <div class=row>
+      <div class=item>d</div>
+      <div class=item>e</div>
+      <div class=item>f</div>
+    </div>
+  <div class=row>
+      <div class=item>g</div>
+      <div class=item>h</div>
+      <div class=item>i</div>
+    </div>
+  <div class=row>
+      <div class=item>j</div>
+      <div class=item>k</div>
+      <div class=item>l</div>
+    </div>
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/batch_with_fill.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/batch_with_fill.test
new file mode 100644
index 000000000..746295f1b
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/batch_with_fill.test
@@ -0,0 +1,37 @@
+--TEST--
+"batch" filter
+--TEMPLATE--
+<table>
+{% for row in items|batch(3, 'fill') %}
+  <tr>
+  {% for column in row %}
+    <td>{{ column }}</td>
+  {% endfor %}
+  </tr>
+{% endfor %}
+</table>
+--DATA--
+return array('items' => array('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j'))
+--EXPECT--
+<table>
+  <tr>
+      <td>a</td>
+      <td>b</td>
+      <td>c</td>
+    </tr>
+  <tr>
+      <td>d</td>
+      <td>e</td>
+      <td>f</td>
+    </tr>
+  <tr>
+      <td>g</td>
+      <td>h</td>
+      <td>i</td>
+    </tr>
+  <tr>
+      <td>j</td>
+      <td>fill</td>
+      <td>fill</td>
+    </tr>
+</table>
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/batch_with_keys.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/batch_with_keys.test
new file mode 100644
index 000000000..6015380e2
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/batch_with_keys.test
@@ -0,0 +1,10 @@
+--TEST--
+"batch" filter preserves array keys
+--TEMPLATE--
+{{ {'foo': 'bar', 'key': 'value'}|batch(4)|first|keys|join(',')  }}
+{{ {'foo': 'bar', 'key': 'value'}|batch(4, 'fill')|first|keys|join(',')  }}
+--DATA--
+return array()
+--EXPECT--
+foo,key
+foo,key,0,1
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/batch_with_zero_elements.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/batch_with_zero_elements.test
new file mode 100644
index 000000000..b9c058d6b
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/batch_with_zero_elements.test
@@ -0,0 +1,10 @@
+--TEST--
+"batch" filter with zero elements
+--TEMPLATE--
+{{ []|batch(3)|length }}
+{{ []|batch(3, 'fill')|length }}
+--DATA--
+return array()
+--EXPECT--
+0
+0
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/convert_encoding.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/convert_encoding.test
new file mode 100644
index 000000000..380b04bb8
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/convert_encoding.test
@@ -0,0 +1,10 @@
+--TEST--
+"convert_encoding" filter
+--CONDITION--
+function_exists('iconv') || function_exists('mb_convert_encoding')
+--TEMPLATE--
+{{ "愛していますか？"|convert_encoding('ISO-2022-JP', 'UTF-8')|convert_encoding('UTF-8', 'ISO-2022-JP') }}
+--DATA--
+return array()
+--EXPECT--
+愛していますか？
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/date.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/date.test
new file mode 100644
index 000000000..d17e5e2f0
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/date.test
@@ -0,0 +1,90 @@
+--TEST--
+"date" filter
+--TEMPLATE--
+{{ date1|date }}
+{{ date1|date('d/m/Y') }}
+{{ date1|date('d/m/Y H:i:s', 'Asia/Hong_Kong') }}
+{{ date1|date('d/m/Y H:i:s P', 'Asia/Hong_Kong') }}
+{{ date1|date('d/m/Y H:i:s P', 'America/Chicago') }}
+{{ date1|date('e') }}
+{{ date1|date('d/m/Y H:i:s') }}
+
+{{ date2|date }}
+{{ date2|date('d/m/Y') }}
+{{ date2|date('d/m/Y H:i:s', 'Asia/Hong_Kong') }}
+{{ date2|date('d/m/Y H:i:s', timezone1) }}
+{{ date2|date('d/m/Y H:i:s') }}
+
+{{ date3|date }}
+{{ date3|date('d/m/Y') }}
+
+{{ date4|date }}
+{{ date4|date('d/m/Y') }}
+
+{{ date5|date }}
+{{ date5|date('d/m/Y') }}
+
+{{ date6|date('d/m/Y H:i:s P', 'Europe/Paris') }}
+{{ date6|date('d/m/Y H:i:s P', 'Asia/Hong_Kong') }}
+{{ date6|date('d/m/Y H:i:s P', false) }}
+{{ date6|date('e', 'Europe/Paris') }}
+{{ date6|date('e', false) }}
+
+{{ date7|date }}
+{{ date7|date(timezone='Europe/Paris') }}
+{{ date7|date(timezone='Asia/Hong_Kong') }}
+{{ date7|date(timezone=false) }}
+{{ date7|date(timezone='Indian/Mauritius') }}
+
+{{ '2010-01-28 15:00:00'|date(timezone="Europe/Paris") }}
+{{ '2010-01-28 15:00:00'|date(timezone="Asia/Hong_Kong") }}
+--DATA--
+date_default_timezone_set('Europe/Paris');
+return array(
+    'date1' => mktime(13, 45, 0, 10, 4, 2010),
+    'date2' => new DateTime('2010-10-04 13:45'),
+    'date3' => '2010-10-04 13:45',
+    'date4' => 1286199900, // DateTime::createFromFormat('Y-m-d H:i', '2010-10-04 13:45', new DateTimeZone('UTC'))->getTimestamp() -- A unixtimestamp is always GMT
+    'date5' => -189291360, // DateTime::createFromFormat('Y-m-d H:i', '1964-01-02 03:04', new DateTimeZone('UTC'))->getTimestamp(),
+    'date6' => new DateTime('2010-10-04 13:45', new DateTimeZone('America/New_York')),
+    'date7' => '2010-01-28T15:00:00+04:00',
+    'timezone1' => new DateTimeZone('America/New_York'),
+)
+--EXPECT--
+October 4, 2010 13:45
+04/10/2010
+04/10/2010 19:45:00
+04/10/2010 19:45:00 +08:00
+04/10/2010 06:45:00 -05:00
+Europe/Paris
+04/10/2010 13:45:00
+
+October 4, 2010 13:45
+04/10/2010
+04/10/2010 19:45:00
+04/10/2010 07:45:00
+04/10/2010 13:45:00
+
+October 4, 2010 13:45
+04/10/2010
+
+October 4, 2010 15:45
+04/10/2010
+
+January 2, 1964 04:04
+02/01/1964
+
+04/10/2010 19:45:00 +02:00
+05/10/2010 01:45:00 +08:00
+04/10/2010 13:45:00 -04:00
+Europe/Paris
+America/New_York
+
+January 28, 2010 12:00
+January 28, 2010 12:00
+January 28, 2010 19:00
+January 28, 2010 15:00
+January 28, 2010 15:00
+
+January 28, 2010 15:00
+January 28, 2010 22:00
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/date_default_format.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/date_default_format.test
new file mode 100644
index 000000000..11a1ef4bd
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/date_default_format.test
@@ -0,0 +1,14 @@
+--TEST--
+"date" filter
+--TEMPLATE--
+{{ date1|date }}
+{{ date1|date('d/m/Y') }}
+--DATA--
+date_default_timezone_set('UTC');
+$twig->getExtension('core')->setDateFormat('Y-m-d', '%d days %h hours');
+return array(
+    'date1' => mktime(13, 45, 0, 10, 4, 2010),
+)
+--EXPECT--
+2010-10-04
+04/10/2010
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/date_default_format_interval.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/date_default_format_interval.test
new file mode 100644
index 000000000..e6d3707d9
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/date_default_format_interval.test
@@ -0,0 +1,16 @@
+--TEST--
+"date" filter (interval support as of PHP 5.3)
+--CONDITION--
+version_compare(phpversion(), '5.3.0', '>=')
+--TEMPLATE--
+{{ date2|date }}
+{{ date2|date('%d days') }}
+--DATA--
+date_default_timezone_set('UTC');
+$twig->getExtension('core')->setDateFormat('Y-m-d', '%d days %h hours');
+return array(
+    'date2' => new DateInterval('P2D'),
+)
+--EXPECT--
+2 days 0 hours
+2 days
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/date_immutable.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/date_immutable.test
new file mode 100644
index 000000000..4e1832562
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/date_immutable.test
@@ -0,0 +1,37 @@
+--TEST--
+"date" filter
+--CONDITION--
+version_compare(phpversion(), '5.5.0', '>=')
+--TEMPLATE--
+{{ date1|date }}
+{{ date1|date('d/m/Y') }}
+{{ date1|date('d/m/Y H:i:s', 'Asia/Hong_Kong') }}
+{{ date1|date('d/m/Y H:i:s', timezone1) }}
+{{ date1|date('d/m/Y H:i:s') }}
+{{ date1|date_modify('+1 hour')|date('d/m/Y H:i:s') }}
+
+{{ date2|date('d/m/Y H:i:s P', 'Europe/Paris') }}
+{{ date2|date('d/m/Y H:i:s P', 'Asia/Hong_Kong') }}
+{{ date2|date('d/m/Y H:i:s P', false) }}
+{{ date2|date('e', 'Europe/Paris') }}
+{{ date2|date('e', false) }}
+--DATA--
+date_default_timezone_set('Europe/Paris');
+return array(
+    'date1' => new DateTimeImmutable('2010-10-04 13:45'),
+    'date2' => new DateTimeImmutable('2010-10-04 13:45', new DateTimeZone('America/New_York')),
+    'timezone1' => new DateTimeZone('America/New_York'),
+)
+--EXPECT--
+October 4, 2010 13:45
+04/10/2010
+04/10/2010 19:45:00
+04/10/2010 07:45:00
+04/10/2010 13:45:00
+04/10/2010 14:45:00
+
+04/10/2010 19:45:00 +02:00
+05/10/2010 01:45:00 +08:00
+04/10/2010 13:45:00 -04:00
+Europe/Paris
+America/New_York
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/date_interval.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/date_interval.test
new file mode 100644
index 000000000..0c8c6f1a2
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/date_interval.test
@@ -0,0 +1,19 @@
+--TEST--
+"date" filter (interval support as of PHP 5.3)
+--CONDITION--
+version_compare(phpversion(), '5.3.0', '>=')
+--TEMPLATE--
+{{ date1|date }}
+{{ date1|date('%d days %h hours') }}
+{{ date1|date('%d days %h hours', timezone1) }}
+--DATA--
+date_default_timezone_set('UTC');
+return array(
+    'date1' => new DateInterval('P2D'),
+    // This should have no effect on DateInterval formatting
+    'timezone1' => new DateTimeZone('America/New_York'),
+)
+--EXPECT--
+2 days
+2 days 0 hours
+2 days 0 hours
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/date_modify.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/date_modify.test
new file mode 100644
index 000000000..53d3a69cd
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/date_modify.test
@@ -0,0 +1,14 @@
+--TEST--
+"date_modify" filter
+--TEMPLATE--
+{{ date1|date_modify('-1day')|date('Y-m-d H:i:s') }}
+{{ date2|date_modify('-1day')|date('Y-m-d H:i:s') }}
+--DATA--
+date_default_timezone_set('UTC');
+return array(
+    'date1' => '2010-10-04 13:45',
+    'date2' => new DateTime('2010-10-04 13:45'),
+)
+--EXPECT--
+2010-10-03 13:45:00
+2010-10-03 13:45:00
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/date_namedargs.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/date_namedargs.test
new file mode 100644
index 000000000..4ecde8a18
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/date_namedargs.test
@@ -0,0 +1,13 @@
+--TEST--
+"date" filter
+--TEMPLATE--
+{{ date|date(format='d/m/Y H:i:s P', timezone='America/Chicago') }}
+{{ date|date(timezone='America/Chicago', format='d/m/Y H:i:s P') }}
+{{ date|date('d/m/Y H:i:s P', timezone='America/Chicago') }}
+--DATA--
+date_default_timezone_set('UTC');
+return array('date' => mktime(13, 45, 0, 10, 4, 2010))
+--EXPECT--
+04/10/2010 08:45:00 -05:00
+04/10/2010 08:45:00 -05:00
+04/10/2010 08:45:00 -05:00
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/default.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/default.test
new file mode 100644
index 000000000..b8d1d66f5
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/default.test
@@ -0,0 +1,150 @@
+--TEST--
+"default" filter
+--TEMPLATE--
+Variable:
+{{ definedVar                  |default('default') is same as('default') ? 'ko' : 'ok' }}
+{{ zeroVar                     |default('default') is same as('default') ? 'ko' : 'ok' }}
+{{ emptyVar                    |default('default') is same as('default') ? 'ok' : 'ko' }}
+{{ nullVar                     |default('default') is same as('default') ? 'ok' : 'ko' }}
+{{ undefinedVar                |default('default') is same as('default') ? 'ok' : 'ko' }}
+Array access:
+{{ nested.definedVar           |default('default') is same as('default') ? 'ko' : 'ok' }}
+{{ nested['definedVar']        |default('default') is same as('default') ? 'ko' : 'ok' }}
+{{ nested.zeroVar              |default('default') is same as('default') ? 'ko' : 'ok' }}
+{{ nested.emptyVar             |default('default') is same as('default') ? 'ok' : 'ko' }}
+{{ nested.nullVar              |default('default') is same as('default') ? 'ok' : 'ko' }}
+{{ nested.undefinedVar         |default('default') is same as('default') ? 'ok' : 'ko' }}
+{{ nested['undefinedVar']      |default('default') is same as('default') ? 'ok' : 'ko' }}
+{{ undefinedVar.foo            |default('default') is same as('default') ? 'ok' : 'ko' }}
+Plain values:
+{{ 'defined'                   |default('default') is same as('default') ? 'ko' : 'ok' }}
+{{ 0                           |default('default') is same as('default') ? 'ko' : 'ok' }}
+{{ ''                          |default('default') is same as('default') ? 'ok' : 'ko' }}
+{{ null                        |default('default') is same as('default') ? 'ok' : 'ko' }}
+Precedence:
+{{ 'o' ~ nullVar               |default('k') }}
+{{ 'o' ~ nested.nullVar        |default('k') }}
+Object methods:
+{{ object.foo                  |default('default') is same as('default') ? 'ko' : 'ok' }}
+{{ object.undefinedMethod      |default('default') is same as('default') ? 'ok' : 'ko' }}
+{{ object.getFoo()             |default('default') is same as('default') ? 'ko' : 'ok' }}
+{{ object.getFoo('a')          |default('default') is same as('default') ? 'ko' : 'ok' }}
+{{ object.undefinedMethod()    |default('default') is same as('default') ? 'ok' : 'ko' }}
+{{ object.undefinedMethod('a') |default('default') is same as('default') ? 'ok' : 'ko' }}
+Deep nested:
+{{ nested.undefinedVar.foo.bar |default('default') is same as('default') ? 'ok' : 'ko' }}
+{{ nested.definedArray.0       |default('default') is same as('default') ? 'ko' : 'ok' }}
+{{ nested['definedArray'][0]   |default('default') is same as('default') ? 'ko' : 'ok' }}
+{{ object.self.foo             |default('default') is same as('default') ? 'ko' : 'ok' }}
+{{ object.self.undefinedMethod |default('default') is same as('default') ? 'ok' : 'ko' }}
+{{ object.undefinedMethod.self |default('default') is same as('default') ? 'ok' : 'ko' }}
+--DATA--
+return array(
+    'definedVar' => 'defined',
+    'zeroVar'    => 0,
+    'emptyVar'   => '',
+    'nullVar'    => null,
+    'nested'     => array(
+        'definedVar'   => 'defined',
+        'zeroVar'      => 0,
+        'emptyVar'     => '',
+        'nullVar'      => null,
+        'definedArray' => array(0),
+    ),
+    'object' => new TwigTestFoo(),
+)
+--CONFIG--
+return array('strict_variables' => false)
+--EXPECT--
+Variable:
+ok
+ok
+ok
+ok
+ok
+Array access:
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+Plain values:
+ok
+ok
+ok
+ok
+Precedence:
+ok
+ok
+Object methods:
+ok
+ok
+ok
+ok
+ok
+ok
+Deep nested:
+ok
+ok
+ok
+ok
+ok
+ok
+--DATA--
+return array(
+    'definedVar' => 'defined',
+    'zeroVar'    => 0,
+    'emptyVar'   => '',
+    'nullVar'    => null,
+    'nested'     => array(
+        'definedVar'   => 'defined',
+        'zeroVar'      => 0,
+        'emptyVar'     => '',
+        'nullVar'      => null,
+        'definedArray' => array(0),
+    ),
+    'object' => new TwigTestFoo(),
+)
+--CONFIG--
+return array('strict_variables' => true)
+--EXPECT--
+Variable:
+ok
+ok
+ok
+ok
+ok
+Array access:
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+Plain values:
+ok
+ok
+ok
+ok
+Precedence:
+ok
+ok
+Object methods:
+ok
+ok
+ok
+ok
+ok
+ok
+Deep nested:
+ok
+ok
+ok
+ok
+ok
+ok
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/dynamic_filter.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/dynamic_filter.test
new file mode 100644
index 000000000..93c5913f2
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/dynamic_filter.test
@@ -0,0 +1,10 @@
+--TEST--
+dynamic filter
+--TEMPLATE--
+{{ 'bar'|foo_path }}
+{{ 'bar'|a_foo_b_bar }}
+--DATA--
+return array()
+--EXPECT--
+foo/bar
+a/b/bar
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/escape.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/escape.test
new file mode 100644
index 000000000..a606c1065
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/escape.test
@@ -0,0 +1,8 @@
+--TEST--
+"escape" filter
+--TEMPLATE--
+{{ "foo <br />"|e }}
+--DATA--
+return array()
+--EXPECT--
+foo &lt;br /&gt;
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/escape_html_attr.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/escape_html_attr.test
new file mode 100644
index 000000000..009a24532
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/escape_html_attr.test
@@ -0,0 +1,8 @@
+--TEST--
+"escape" filter does not escape with the html strategy when using the html_attr strategy
+--TEMPLATE--
+{{ '<br />'|escape('html_attr') }}
+--DATA--
+return array()
+--EXPECT--
+&lt;br&#x20;&#x2F;&gt;
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/escape_non_supported_charset.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/escape_non_supported_charset.test
new file mode 100644
index 000000000..bba26a0df
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/escape_non_supported_charset.test
@@ -0,0 +1,8 @@
+--TEST--
+"escape" filter
+--TEMPLATE--
+{{ "愛していますか？ <br />"|e }}
+--DATA--
+return array()
+--EXPECT--
+愛していますか？ &lt;br /&gt;
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/first.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/first.test
new file mode 100644
index 000000000..aa54645c3
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/first.test
@@ -0,0 +1,17 @@
+--TEST--
+"first" filter
+--TEMPLATE--
+{{ [1, 2, 3, 4]|first }}
+{{ {a: 1, b: 2, c: 3, d: 4}|first }}
+{{ '1234'|first }}
+{{ arr|first }}
+{{ 'Ä€é'|first }}
+{{ ''|first }}
+--DATA--
+return array('arr' => new ArrayObject(array(1, 2, 3, 4)))
+--EXPECT--
+1
+1
+1
+1
+Ä
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/force_escape.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/force_escape.test
new file mode 100644
index 000000000..85a9b7172
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/force_escape.test
@@ -0,0 +1,18 @@
+--TEST--
+"escape" filter
+--TEMPLATE--
+{% set foo %}
+    foo<br />
+{% endset %}
+
+{{ foo|e('html') -}}
+{{ foo|e('js') }}
+{% autoescape true %}
+    {{ foo }}
+{% endautoescape %}
+--DATA--
+return array()
+--EXPECT--
+    foo&lt;br /&gt;
+\x20\x20\x20\x20foo\x3Cbr\x20\x2F\x3E\x0A
+        foo<br />
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/format.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/format.test
new file mode 100644
index 000000000..97221ff80
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/format.test
@@ -0,0 +1,8 @@
+--TEST--
+"format" filter
+--TEMPLATE--
+{{ string|format(foo, 3) }}
+--DATA--
+return array('string' => '%s/%d', 'foo' => 'bar')
+--EXPECT--
+bar/3
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/join.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/join.test
new file mode 100644
index 000000000..b342c174c
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/join.test
@@ -0,0 +1,12 @@
+--TEST--
+"join" filter
+--TEMPLATE--
+{{ ["foo", "bar"]|join(', ') }}
+{{ foo|join(', ') }}
+{{ bar|join(', ') }}
+--DATA--
+return array('foo' => new TwigTestFoo(), 'bar' => new ArrayObject(array(3, 4)))
+--EXPECT--
+foo, bar
+1, 2
+3, 4
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/json_encode.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/json_encode.test
new file mode 100644
index 000000000..1738d40cd
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/json_encode.test
@@ -0,0 +1,12 @@
+--TEST--
+"json_encode" filter
+--TEMPLATE--
+{{ "foo"|json_encode|raw }}
+{{ foo|json_encode|raw }}
+{{ [foo, "foo"]|json_encode|raw }}
+--DATA--
+return array('foo' => new Twig_Markup('foo', 'UTF-8'))
+--EXPECT--
+"foo"
+"foo"
+["foo","foo"]
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/last.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/last.test
new file mode 100644
index 000000000..1b8031ee8
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/last.test
@@ -0,0 +1,17 @@
+--TEST--
+"last" filter
+--TEMPLATE--
+{{ [1, 2, 3, 4]|last }}
+{{ {a: 1, b: 2, c: 3, d: 4}|last }}
+{{ '1234'|last }}
+{{ arr|last }}
+{{ 'Ä€é'|last }}
+{{ ''|last }}
+--DATA--
+return array('arr' => new ArrayObject(array(1, 2, 3, 4)))
+--EXPECT--
+4
+4
+4
+4
+é
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/length.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/length.test
new file mode 100644
index 000000000..3347474d5
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/length.test
@@ -0,0 +1,14 @@
+--TEST--
+"length" filter
+--TEMPLATE--
+{{ array|length }}
+{{ string|length }}
+{{ number|length }}
+{{ markup|length }}
+--DATA--
+return array('array' => array(1, 4), 'string' => 'foo', 'number' => 1000, 'markup' => new Twig_Markup('foo', 'UTF-8'))
+--EXPECT--
+2
+3
+4
+3
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/length_utf8.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/length_utf8.test
new file mode 100644
index 000000000..5d5e24361
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/length_utf8.test
@@ -0,0 +1,12 @@
+--TEST--
+"length" filter
+--CONDITION--
+function_exists('mb_get_info')
+--TEMPLATE--
+{{ string|length }}
+{{ markup|length }}
+--DATA--
+return array('string' => 'été', 'markup' => new Twig_Markup('foo', 'UTF-8'))
+--EXPECT--
+3
+3
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/merge.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/merge.test
new file mode 100644
index 000000000..81371a41b
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/merge.test
@@ -0,0 +1,18 @@
+--TEST--
+"merge" filter
+--TEMPLATE--
+{{ items|merge({'bar': 'foo'})|join }}
+{{ items|merge({'bar': 'foo'})|keys|join }}
+{{ {'bar': 'foo'}|merge(items)|join }}
+{{ {'bar': 'foo'}|merge(items)|keys|join }}
+{{ numerics|merge([4, 5, 6])|join }}
+{{ traversable.a|merge(traversable.b)|join }}
+--DATA--
+return array('items' => array('foo' => 'bar'), 'numerics' => array(1, 2, 3), 'traversable' => array('a' => new ArrayObject(array(0 => 1, 1 => 2, 2 => 3)), 'b' => new ArrayObject(array('a' => 'b'))))
+--EXPECT--
+barfoo
+foobar
+foobar
+barfoo
+123456
+123b
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/nl2br.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/nl2br.test
new file mode 100644
index 000000000..6545a9bb0
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/nl2br.test
@@ -0,0 +1,14 @@
+--TEST--
+"nl2br" filter
+--TEMPLATE--
+{{ "I like Twig.\nYou will like it too.\n\nEverybody like it!"|nl2br }}
+{{ text|nl2br }}
+--DATA--
+return array('text' => "If you have some <strong>HTML</strong>\nit will be escaped.")
+--EXPECT--
+I like Twig.<br />
+You will like it too.<br />
+<br />
+Everybody like it!
+If you have some &lt;strong&gt;HTML&lt;/strong&gt;<br />
+it will be escaped.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/number_format.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/number_format.test
new file mode 100644
index 000000000..639a8659f
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/number_format.test
@@ -0,0 +1,18 @@
+--TEST--
+"number_format" filter
+--TEMPLATE--
+{{ 20|number_format }}
+{{ 20.25|number_format }}
+{{ 20.25|number_format(2) }}
+{{ 20.25|number_format(2, ',') }}
+{{ 1020.25|number_format(2, ',') }}
+{{ 1020.25|number_format(2, ',', '.') }}
+--DATA--
+return array();
+--EXPECT--
+20
+20
+20.25
+20,25
+1,020,25
+1.020,25
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/number_format_default.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/number_format_default.test
new file mode 100644
index 000000000..c6903cc73
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/number_format_default.test
@@ -0,0 +1,21 @@
+--TEST--
+"number_format" filter with defaults.
+--TEMPLATE--
+{{ 20|number_format }}
+{{ 20.25|number_format }}
+{{ 20.25|number_format(1) }}
+{{ 20.25|number_format(2, ',') }}
+{{ 1020.25|number_format }}
+{{ 1020.25|number_format(2, ',') }}
+{{ 1020.25|number_format(2, ',', '.') }}
+--DATA--
+$twig->getExtension('core')->setNumberFormat(2, '!', '=');
+return array();
+--EXPECT--
+20!00
+20!25
+20!3
+20,25
+1=020!25
+1=020,25
+1.020,25
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/replace.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/replace.test
new file mode 100644
index 000000000..06be7e270
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/replace.test
@@ -0,0 +1,12 @@
+--TEST--
+"replace" filter
+--TEMPLATE--
+{{ "I liké %this% and %that%."|replace({'%this%': "foo", '%that%': "bar"}) }}
+{{ 'I like single replace operation only %that%'|replace({'%that%' : '%that%1'}) }}
+{{ 'I like %this% and %that%.'|replace(traversable) }}
+--DATA--
+return array('traversable' => new ArrayObject(array('%this%' => 'foo', '%that%' => 'bar')))
+--EXPECT--
+I liké foo and bar.
+I like single replace operation only %that%1
+I like foo and bar.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/replace_invalid_arg.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/replace_invalid_arg.test
new file mode 100644
index 000000000..2143a8690
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/replace_invalid_arg.test
@@ -0,0 +1,8 @@
+--TEST--
+Exception for invalid argument type in replace call
+--TEMPLATE--
+{{ 'test %foo%'|replace(stdClass) }}
+--DATA--
+return array('stdClass' => new stdClass())
+--EXCEPTION--
+Twig_Error_Runtime: The "replace" filter expects an array or "Traversable" as replace values, got "stdClass" in "index.twig" at line 2.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/reverse.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/reverse.test
new file mode 100644
index 000000000..7948ac45f
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/reverse.test
@@ -0,0 +1,18 @@
+--TEST--
+"reverse" filter
+--TEMPLATE--
+{{ [1, 2, 3, 4]|reverse|join('') }}
+{{ '1234évènement'|reverse }}
+{{ arr|reverse|join('') }}
+{{ {'a': 'c', 'b': 'a'}|reverse()|join(',') }}
+{{ {'a': 'c', 'b': 'a'}|reverse(preserveKeys=true)|join(glue=',') }}
+{{ {'a': 'c', 'b': 'a'}|reverse(preserve_keys=true)|join(glue=',') }}
+--DATA--
+return array('arr' => new ArrayObject(array(1, 2, 3, 4)))
+--EXPECT--
+4321
+tnemenèvé4321
+4321
+a,c
+a,c
+a,c
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/round.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/round.test
new file mode 100644
index 000000000..57806b619
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/round.test
@@ -0,0 +1,22 @@
+--TEST--
+"round" filter
+--TEMPLATE--
+{{ 2.7|round }}
+{{ 2.1|round }}
+{{ 2.1234|round(3, 'floor') }}
+{{ 2.1|round(0, 'ceil') }}
+
+{{ 21.3|round(-1)}}
+{{ 21.3|round(-1, 'ceil')}}
+{{ 21.3|round(-1, 'floor')}}
+--DATA--
+return array()
+--EXPECT--
+3
+2
+2.123
+3
+
+20
+30
+20
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/slice.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/slice.test
new file mode 100644
index 000000000..b49b89fe5
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/slice.test
@@ -0,0 +1,54 @@
+--TEST--
+"slice" filter
+--TEMPLATE--
+{{ [1, 2, 3, 4][1:2]|join('') }}
+{{ {a: 1, b: 2, c: 3, d: 4}[1:2]|join('') }}
+{{ [1, 2, 3, 4][start:length]|join('') }}
+{{ [1, 2, 3, 4]|slice(1, 2)|join('') }}
+{{ [1, 2, 3, 4]|slice(1, 2)|keys|join('') }}
+{{ [1, 2, 3, 4]|slice(1, 2, true)|keys|join('') }}
+{{ {a: 1, b: 2, c: 3, d: 4}|slice(1, 2)|join('') }}
+{{ {a: 1, b: 2, c: 3, d: 4}|slice(1, 2)|keys|join('') }}
+{{ '1234'|slice(1, 2) }}
+{{ '1234'[1:2] }}
+{{ arr|slice(1, 2)|join('') }}
+{{ arr[1:2]|join('') }}
+{{ arr[4:1]|join('') }}
+{{ arr[3:2]|join('') }}
+
+{{ [1, 2, 3, 4]|slice(1)|join('') }}
+{{ [1, 2, 3, 4][1:]|join('') }}
+{{ '1234'|slice(1) }}
+{{ '1234'[1:] }}
+{{ '1234'[:1] }}
+
+{{ arr|slice(3)|join('') }}
+{{ arr[2:]|join('') }}
+{{ xml|slice(1)|join('')}}
+--DATA--
+return array('start' => 1, 'length' => 2, 'arr' => new ArrayObject(array(1, 2, 3, 4)), 'xml' => new SimpleXMLElement('<items><item>1</item><item>2</item></items>'))
+--EXPECT--
+23
+23
+23
+23
+01
+12
+23
+bc
+23
+23
+23
+23
+
+4
+
+234
+234
+234
+234
+1
+
+4
+34
+2
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/sort.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/sort.test
new file mode 100644
index 000000000..c67c18ea9
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/sort.test
@@ -0,0 +1,12 @@
+--TEST--
+"sort" filter
+--TEMPLATE--
+{{ array1|sort|join }}
+{{ array2|sort|join }}
+{{ traversable|sort|join }}
+--DATA--
+return array('array1' => array(4, 1), 'array2' => array('foo', 'bar'), 'traversable' => new ArrayObject(array(0 => 3, 1 => 2, 2 => 1)))
+--EXPECT--
+14
+barfoo
+123
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/special_chars.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/special_chars.test
new file mode 100644
index 000000000..dbaf7dc97
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/special_chars.test
@@ -0,0 +1,8 @@
+--TEST--
+"§" custom filter
+--TEMPLATE--
+{{ 'foo'|§ }}
+--DATA--
+return array()
+--EXPECT--
+§foo§
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/split.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/split.test
new file mode 100644
index 000000000..a093ed79b
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/split.test
@@ -0,0 +1,20 @@
+--TEST--
+"split" filter
+--TEMPLATE--
+{{ "one,two,three,four,five"|split(',')|join('-') }}
+{{ foo|split(',')|join('-') }}
+{{ foo|split(',', 3)|join('-') }}
+{{ baz|split('')|join('-') }}
+{{ baz|split('', 1)|join('-') }}
+{{ baz|split('', 2)|join('-') }}
+{{ foo|split(',', -2)|join('-') }}
+--DATA--
+return array('foo' => "one,two,three,four,five", 'baz' => '12345',)
+--EXPECT--
+one-two-three-four-five
+one-two-three-four-five
+one-two-three,four,five
+1-2-3-4-5
+1-2-3-4-5
+12-34-5
+one-two-three
\ No newline at end of file
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/split_utf8.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/split_utf8.test
new file mode 100644
index 000000000..305e162fe
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/split_utf8.test
@@ -0,0 +1,24 @@
+--TEST--
+"split" filter
+--CONDITION--
+function_exists('mb_get_info')
+--TEMPLATE--
+{{ "é"|split('', 10)|join('-') }}
+{{ foo|split(',')|join('-') }}
+{{ foo|split(',', 1)|join('-') }}
+{{ foo|split(',', 2)|join('-') }}
+{{ foo|split(',', 3)|join('-') }}
+{{ baz|split('')|join('-') }}
+{{ baz|split('', 1)|join('-') }}
+{{ baz|split('', 2)|join('-') }}
+--DATA--
+return array('foo' => 'Ä,é,Äほ', 'baz' => 'éÄßごa',)
+--EXPECT--
+é
+Ä-é-Äほ
+Ä,é,Äほ
+Ä-é,Äほ
+Ä-é-Äほ
+é-Ä-ß-ご-a
+é-Ä-ß-ご-a
+éÄ-ßご-a
\ No newline at end of file
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/trim.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/trim.test
new file mode 100644
index 000000000..319206258
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/trim.test
@@ -0,0 +1,12 @@
+--TEST--
+"trim" filter
+--TEMPLATE--
+{{ "  I like Twig.  "|trim }}
+{{ text|trim }}
+{{ "  foo/"|trim("/") }}
+--DATA--
+return array('text' => "  If you have some <strong>HTML</strong> it will be escaped.  ")
+--EXPECT--
+I like Twig.
+If you have some &lt;strong&gt;HTML&lt;/strong&gt; it will be escaped.
+  foo
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/urlencode.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/urlencode.test
new file mode 100644
index 000000000..8726159db
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/urlencode.test
@@ -0,0 +1,16 @@
+--TEST--
+"url_encode" filter
+--CONDITION--
+defined('PHP_QUERY_RFC3986')
+--TEMPLATE--
+{{ {foo: "bar", number: 3, "spéßi%l": "e%c0d@d", "spa ce": ""}|url_encode }}
+{{ {foo: "bar", number: 3, "spéßi%l": "e%c0d@d", "spa ce": ""}|url_encode|raw }}
+{{ {}|url_encode|default("default") }}
+{{ 'spéßi%le%c0d@dspa ce'|url_encode }}
+--DATA--
+return array()
+--EXPECT--
+foo=bar&amp;number=3&amp;sp%C3%A9%C3%9Fi%25l=e%25c0d%40d&amp;spa%20ce=
+foo=bar&number=3&sp%C3%A9%C3%9Fi%25l=e%25c0d%40d&spa%20ce=
+default
+sp%C3%A9%C3%9Fi%25le%25c0d%40dspa%20ce
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/urlencode_deprecated.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/urlencode_deprecated.test
new file mode 100644
index 000000000..11800e9c0
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/filters/urlencode_deprecated.test
@@ -0,0 +1,16 @@
+--TEST--
+"url_encode" filter for PHP < 5.4 and HHVM
+--CONDITION--
+defined('PHP_QUERY_RFC3986')
+--TEMPLATE--
+{{ {foo: "bar", number: 3, "spéßi%l": "e%c0d@d", "spa ce": ""}|url_encode }}
+{{ {foo: "bar", number: 3, "spéßi%l": "e%c0d@d", "spa ce": ""}|url_encode|raw }}
+{{ {}|url_encode|default("default") }}
+{{ 'spéßi%le%c0d@dspa ce'|url_encode }}
+--DATA--
+return array()
+--EXPECT--
+foo=bar&amp;number=3&amp;sp%C3%A9%C3%9Fi%25l=e%25c0d%40d&amp;spa%20ce=
+foo=bar&number=3&sp%C3%A9%C3%9Fi%25l=e%25c0d%40d&spa%20ce=
+default
+sp%C3%A9%C3%9Fi%25le%25c0d%40dspa%20ce
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/attribute.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/attribute.test
new file mode 100644
index 000000000..71b2038aa
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/attribute.test
@@ -0,0 +1,18 @@
+--TEST--
+"attribute" function
+--TEMPLATE--
+{{ attribute(obj, method) }}
+{{ attribute(array, item) }}
+{{ attribute(obj, "bar", ["a", "b"]) }}
+{{ attribute(obj, "bar", arguments) }}
+{{ attribute(obj, method) is defined ? 'ok' : 'ko' }}
+{{ attribute(obj, nonmethod) is defined ? 'ok' : 'ko' }}
+--DATA--
+return array('obj' => new TwigTestFoo(), 'method' => 'foo', 'array' => array('foo' => 'bar'), 'item' => 'foo', 'nonmethod' => 'xxx', 'arguments' => array('a', 'b'))
+--EXPECT--
+foo
+bar
+bar_a-b
+bar_a-b
+ok
+ko
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/block.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/block.test
new file mode 100644
index 000000000..8e54059ae
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/block.test
@@ -0,0 +1,12 @@
+--TEST--
+"block" function
+--TEMPLATE--
+{% extends 'base.twig' %}
+{% block bar %}BAR{% endblock %}
+--TEMPLATE(base.twig)--
+{% block foo %}{{ block('bar') }}{% endblock %}
+{% block bar %}BAR_BASE{% endblock %}
+--DATA--
+return array()
+--EXPECT--
+BARBAR
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/constant.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/constant.test
new file mode 100644
index 000000000..63128791f
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/constant.test
@@ -0,0 +1,10 @@
+--TEST--
+"constant" function
+--TEMPLATE--
+{{ constant('DATE_W3C') == expect ? 'true' : 'false' }}
+{{ constant('ARRAY_AS_PROPS', object) }}
+--DATA--
+return array('expect' => DATE_W3C, 'object' => new ArrayObject(array('hi')));
+--EXPECT--
+true
+2
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/cycle.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/cycle.test
new file mode 100644
index 000000000..522a63b85
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/cycle.test
@@ -0,0 +1,16 @@
+--TEST--
+"cycle" function
+--TEMPLATE--
+{% for i in 0..6 %}
+{{ cycle(array1, i) }}-{{ cycle(array2, i) }}
+{% endfor %}
+--DATA--
+return array('array1' => array('odd', 'even'), 'array2' => array('apple', 'orange', 'citrus'))
+--EXPECT--
+odd-apple
+even-orange
+odd-citrus
+even-apple
+odd-orange
+even-citrus
+odd-apple
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/date.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/date.test
new file mode 100644
index 000000000..8be9c0c40
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/date.test
@@ -0,0 +1,25 @@
+--TEST--
+"date" function
+--TEMPLATE--
+{{ date() == date('now') ? 'OK' : 'KO' }}
+{{ date(date1) == date('2010-10-04 13:45') ? 'OK' : 'KO' }}
+{{ date(date2) == date('2010-10-04 13:45') ? 'OK' : 'KO' }}
+{{ date(date3) == date('2010-10-04 13:45') ? 'OK' : 'KO' }}
+{{ date(date4) == date('2010-10-04 13:45') ? 'OK' : 'KO' }}
+{{ date(date5) == date('1964-01-02 03:04') ? 'OK' : 'KO' }}
+--DATA--
+date_default_timezone_set('UTC');
+return array(
+    'date1' => mktime(13, 45, 0, 10, 4, 2010),
+    'date2' => new DateTime('2010-10-04 13:45'),
+    'date3' => '2010-10-04 13:45',
+    'date4' => 1286199900, // DateTime::createFromFormat('Y-m-d H:i', '2010-10-04 13:45', new DateTimeZone('UTC'))->getTimestamp() -- A unixtimestamp is always GMT
+    'date5' => -189291360, // DateTime::createFromFormat('Y-m-d H:i', '1964-01-02 03:04', new DateTimeZone('UTC'))->getTimestamp(),
+)
+--EXPECT--
+OK
+OK
+OK
+OK
+OK
+OK
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/date_namedargs.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/date_namedargs.test
new file mode 100644
index 000000000..b9dd9e383
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/date_namedargs.test
@@ -0,0 +1,11 @@
+--TEST--
+"date" function
+--TEMPLATE--
+{{ date(date, "America/New_York")|date('d/m/Y H:i:s P', false) }}
+{{ date(timezone="America/New_York", date=date)|date('d/m/Y H:i:s P', false) }}
+--DATA--
+date_default_timezone_set('UTC');
+return array('date' => mktime(13, 45, 0, 10, 4, 2010))
+--EXPECT--
+04/10/2010 09:45:00 -04:00
+04/10/2010 09:45:00 -04:00
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/dump.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/dump.test
new file mode 100644
index 000000000..f4072375a
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/dump.test
@@ -0,0 +1,16 @@
+--TEST--
+"dump" function
+--CONDITION--
+!extension_loaded('xdebug')
+--TEMPLATE--
+{{ dump('foo') }}
+{{ dump('foo', 'bar') }}
+--DATA--
+return array('foo' => 'foo', 'bar' => 'bar')
+--CONFIG--
+return array('debug' => true, 'autoescape' => false);
+--EXPECT--
+string(3) "foo"
+
+string(3) "foo"
+string(3) "bar"
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/dump_array.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/dump_array.test
new file mode 100644
index 000000000..889b7a922
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/dump_array.test
@@ -0,0 +1,19 @@
+--TEST--
+"dump" function, xdebug is not loaded or xdebug <2.2-dev is loaded
+--CONDITION--
+!extension_loaded('xdebug') || (($r = new ReflectionExtension('xdebug')) && version_compare($r->getVersion(), '2.2-dev', '<'))
+--TEMPLATE--
+{{ dump() }}
+--DATA--
+return array('foo' => 'foo', 'bar' => 'bar')
+--CONFIG--
+return array('debug' => true, 'autoescape' => false);
+--EXPECT--
+array(3) {
+  ["foo"]=>
+  string(3) "foo"
+  ["bar"]=>
+  string(3) "bar"
+  ["global"]=>
+  string(6) "global"
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/dynamic_function.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/dynamic_function.test
new file mode 100644
index 000000000..913fbc995
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/dynamic_function.test
@@ -0,0 +1,10 @@
+--TEST--
+dynamic function
+--TEMPLATE--
+{{ foo_path('bar') }}
+{{ a_foo_b_bar('bar') }}
+--DATA--
+return array()
+--EXPECT--
+foo/bar
+a/b/bar
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/assignment.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/assignment.test
new file mode 100644
index 000000000..b7653b4ef
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/assignment.test
@@ -0,0 +1,13 @@
+--TEST--
+"include" function
+--TEMPLATE--
+{% set tmp = include("foo.twig") %}
+
+FOO{{ tmp }}BAR
+--TEMPLATE(foo.twig)--
+FOOBAR
+--DATA--
+return array()
+--EXPECT--
+FOO
+FOOBARBAR
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/autoescaping.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/autoescaping.test
new file mode 100644
index 000000000..56f8f3b5a
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/autoescaping.test
@@ -0,0 +1,10 @@
+--TEST--
+"include" function is safe for auto-escaping
+--TEMPLATE--
+{{ include("foo.twig") }}
+--TEMPLATE(foo.twig)--
+<p>Test</p>
+--DATA--
+return array()
+--EXPECT--
+<p>Test</p>
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/basic.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/basic.test
new file mode 100644
index 000000000..a434182a2
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/basic.test
@@ -0,0 +1,17 @@
+--TEST--
+"include" function
+--TEMPLATE--
+FOO
+{{ include("foo.twig") }}
+
+BAR
+--TEMPLATE(foo.twig)--
+FOOBAR
+--DATA--
+return array()
+--EXPECT--
+FOO
+
+FOOBAR
+
+BAR
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/expression.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/expression.test
new file mode 100644
index 000000000..aba30ce3f
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/expression.test
@@ -0,0 +1,17 @@
+--TEST--
+"include" function allows expressions for the template to include
+--TEMPLATE--
+FOO
+{{ include(foo) }}
+
+BAR
+--TEMPLATE(foo.twig)--
+FOOBAR
+--DATA--
+return array('foo' => 'foo.twig')
+--EXPECT--
+FOO
+
+FOOBAR
+
+BAR
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/ignore_missing.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/ignore_missing.test
new file mode 100644
index 000000000..43a2ccc2c
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/ignore_missing.test
@@ -0,0 +1,10 @@
+--TEST--
+"include" function
+--TEMPLATE--
+{{ include(["foo.twig", "bar.twig"], ignore_missing = true) }}
+{{ include("foo.twig", ignore_missing = true) }}
+{{ include("foo.twig", ignore_missing = true, variables = {}) }}
+{{ include("foo.twig", ignore_missing = true, variables = {}, with_context = true) }}
+--DATA--
+return array()
+--EXPECT--
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/missing.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/missing.test
new file mode 100644
index 000000000..4d2f6cf13
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/missing.test
@@ -0,0 +1,8 @@
+--TEST--
+"include" function
+--TEMPLATE--
+{{ include("foo.twig") }}
+--DATA--
+return array();
+--EXCEPTION--
+Twig_Error_Loader: Template "foo.twig" is not defined in "index.twig" at line 2.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/missing_nested.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/missing_nested.test
new file mode 100644
index 000000000..78fddc7a6
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/missing_nested.test
@@ -0,0 +1,16 @@
+--TEST--
+"include" function
+--TEMPLATE--
+{% extends "base.twig" %}
+
+{% block content %}
+    {{ parent() }}
+{% endblock %}
+--TEMPLATE(base.twig)--
+{% block content %}
+    {{ include("foo.twig") }}
+{% endblock %}
+--DATA--
+return array();
+--EXCEPTION--
+Twig_Error_Loader: Template "foo.twig" is not defined in "base.twig" at line 3.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/sandbox.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/sandbox.test
new file mode 100644
index 000000000..7b9ccaca8
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/sandbox.test
@@ -0,0 +1,13 @@
+--TEST--
+"include" tag sandboxed
+--TEMPLATE--
+{{ include("foo.twig", sandboxed = true) }}
+--TEMPLATE(foo.twig)--
+
+
+{{ foo|e }}
+{{ foo|e }}
+--DATA--
+return array()
+--EXCEPTION--
+Twig_Sandbox_SecurityNotAllowedFilterError: Filter "e" is not allowed in "foo.twig" at line 4.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/sandbox_disabling.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/sandbox_disabling.test
new file mode 100644
index 000000000..8ffc49225
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/sandbox_disabling.test
@@ -0,0 +1,16 @@
+--TEST--
+"include" tag sandboxed
+--TEMPLATE--
+{{ include("foo.twig", sandboxed = true) }}
+{{ include("bar.twig") }}
+--TEMPLATE(foo.twig)--
+foo
+--TEMPLATE(bar.twig)--
+{{ foo|e }}
+--DATA--
+return array('foo' => 'bar<br />')
+--EXPECT--
+foo
+
+
+bar&lt;br /&gt;
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/sandbox_disabling_ignore_missing.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/sandbox_disabling_ignore_missing.test
new file mode 100644
index 000000000..8bf6e102d
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/sandbox_disabling_ignore_missing.test
@@ -0,0 +1,13 @@
+--TEST--
+"include" tag sandboxed
+--TEMPLATE--
+{{ include("unknown.twig", sandboxed = true, ignore_missing = true) }}
+{{ include("bar.twig") }}
+--TEMPLATE(bar.twig)--
+{{ foo|e }}
+--DATA--
+return array('foo' => 'bar<br />')
+--EXPECT--
+
+
+bar&lt;br /&gt;
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/template_instance.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/template_instance.test
new file mode 100644
index 000000000..18d405a02
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/template_instance.test
@@ -0,0 +1,10 @@
+--TEST--
+"include" function accepts Twig_Template instance
+--TEMPLATE--
+{{ include(foo) }} FOO
+--TEMPLATE(foo.twig)--
+BAR
+--DATA--
+return array('foo' => $twig->loadTemplate('foo.twig'))
+--EXPECT--
+BAR FOO
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/templates_as_array.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/templates_as_array.test
new file mode 100644
index 000000000..1a8100687
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/templates_as_array.test
@@ -0,0 +1,12 @@
+--TEST--
+"include" function
+--TEMPLATE--
+{{ include(["foo.twig", "bar.twig"]) }}
+{{- include(["bar.twig", "foo.twig"]) }}
+--TEMPLATE(foo.twig)--
+foo
+--DATA--
+return array()
+--EXPECT--
+foo
+foo
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/with_context.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/with_context.test
new file mode 100644
index 000000000..35611fbb9
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/with_context.test
@@ -0,0 +1,16 @@
+--TEST--
+"include" function accept variables and with_context
+--TEMPLATE--
+{{ include("foo.twig") }}
+{{- include("foo.twig", with_context = false) }}
+{{- include("foo.twig", {'foo1': 'bar'}) }}
+{{- include("foo.twig", {'foo1': 'bar'}, with_context = false) }}
+--TEMPLATE(foo.twig)--
+{% for k, v in _context %}{{ k }},{% endfor %}
+--DATA--
+return array('foo' => 'bar')
+--EXPECT--
+foo,global,_parent,
+global,_parent,
+foo,global,foo1,_parent,
+foo1,global,_parent,
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/with_variables.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/with_variables.test
new file mode 100644
index 000000000..b2ace940e
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/include/with_variables.test
@@ -0,0 +1,12 @@
+--TEST--
+"include" function accept variables
+--TEMPLATE--
+{{ include("foo.twig", {'foo': 'bar'}) }}
+{{- include("foo.twig", vars) }}
+--TEMPLATE(foo.twig)--
+{{ foo }}
+--DATA--
+return array('vars' => array('foo' => 'bar'))
+--EXPECT--
+bar
+bar
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/max.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/max.test
new file mode 100644
index 000000000..e6c94af63
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/max.test
@@ -0,0 +1,12 @@
+--TEST--
+"max" function
+--TEMPLATE--
+{{ max([2, 1, 3, 5, 4]) }}
+{{ max(2, 1, 3, 5, 4) }}
+{{ max({2:"two", 1:"one", 3:"three", 5:"five", 4:"for"}) }}
+--DATA--
+return array()
+--EXPECT--
+5
+5
+two
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/min.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/min.test
new file mode 100644
index 000000000..660471c00
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/min.test
@@ -0,0 +1,12 @@
+--TEST--
+"min" function
+--TEMPLATE--
+{{ min(2, 1, 3, 5, 4) }}
+{{ min([2, 1, 3, 5, 4]) }}
+{{ min({2:"two", 1:"one", 3:"three", 5:"five", 4:"for"}) }}
+--DATA--
+return array()
+--EXPECT--
+1
+1
+five
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/range.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/range.test
new file mode 100644
index 000000000..e0377c8d4
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/range.test
@@ -0,0 +1,8 @@
+--TEST--
+"range" function
+--TEMPLATE--
+{{ range(low=0+1, high=10+0, step=2)|join(',') }}
+--DATA--
+return array()
+--EXPECT--
+1,3,5,7,9
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/recursive_block_with_inheritance.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/recursive_block_with_inheritance.test
new file mode 100644
index 000000000..f39712da8
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/recursive_block_with_inheritance.test
@@ -0,0 +1,21 @@
+--TEST--
+"block" function recursively called in a parent template
+--TEMPLATE--
+{% extends "ordered_menu.twig" %}
+{% block label %}"{{ parent() }}"{% endblock %}
+{% block list %}{% set class = 'b' %}{{ parent() }}{% endblock %}
+--TEMPLATE(ordered_menu.twig)--
+{% extends "menu.twig" %}
+{% block list %}{% set class = class|default('a') %}<ol class="{{ class }}">{{ block('children') }}</ol>{% endblock %}
+--TEMPLATE(menu.twig)--
+{% extends "base.twig" %}
+{% block list %}<ul>{{ block('children') }}</ul>{% endblock %}
+{% block children %}{% set currentItem = item %}{% for item in currentItem %}{{ block('item') }}{% endfor %}{% set item = currentItem %}{% endblock %}
+{% block item %}<li>{% if item is not iterable %}{{ block('label') }}{% else %}{{ block('list') }}{% endif %}</li>{% endblock %}
+{% block label %}{{ item }}{{ block('unknown') }}{% endblock %}
+--TEMPLATE(base.twig)--
+{{ block('list') }}
+--DATA--
+return array('item' => array('1', '2', array('3.1', array('3.2.1', '3.2.2'), '3.4')))
+--EXPECT--
+<ol class="b"><li>"1"</li><li>"2"</li><li><ol class="b"><li>"3.1"</li><li><ol class="b"><li>"3.2.1"</li><li>"3.2.2"</li></ol></li><li>"3.4"</li></ol></li></ol>
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/source.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/source.test
new file mode 100644
index 000000000..0e094c3b2
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/source.test
@@ -0,0 +1,17 @@
+--TEST--
+"source" function
+--TEMPLATE--
+FOO
+{{ source("foo.twig") }}
+
+BAR
+--TEMPLATE(foo.twig)--
+{{ foo }}<br />
+--DATA--
+return array()
+--EXPECT--
+FOO
+
+{{ foo }}<br />
+
+BAR
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/special_chars.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/special_chars.test
new file mode 100644
index 000000000..30c3df516
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/special_chars.test
@@ -0,0 +1,8 @@
+--TEST--
+"§" custom function
+--TEMPLATE--
+{{ §('foo') }}
+--DATA--
+return array()
+--EXPECT--
+§foo§
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/template_from_string.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/template_from_string.test
new file mode 100644
index 000000000..3d3b95874
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/functions/template_from_string.test
@@ -0,0 +1,15 @@
+--TEST--
+"template_from_string" function
+--TEMPLATE--
+{% include template_from_string(template) %}
+
+{% include template_from_string("Hello {{ name }}") %}
+{% include template_from_string('{% extends "parent.twig" %}{% block content %}Hello {{ name }}{% endblock %}') %}
+--TEMPLATE(parent.twig)--
+{% block content %}{% endblock %}
+--DATA--
+return array('name' => 'Fabien', 'template' => "Hello {{ name }}")
+--EXPECT--
+Hello Fabien
+Hello Fabien
+Hello Fabien
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/macros/default_values.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/macros/default_values.test
new file mode 100644
index 000000000..4ccff7b67
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/macros/default_values.test
@@ -0,0 +1,16 @@
+--TEST--
+macro
+--TEMPLATE--
+{% from _self import test %}
+
+{% macro test(a, b = 'bar') -%}
+{{ a }}{{ b }}
+{%- endmacro %}
+
+{{ test('foo') }}
+{{ test('bar', 'foo') }}
+--DATA--
+return array();
+--EXPECT--
+foobar
+barfoo
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/macros/nested_calls.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/macros/nested_calls.test
new file mode 100644
index 000000000..cd2542810
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/macros/nested_calls.test
@@ -0,0 +1,18 @@
+--TEST--
+macro
+--TEMPLATE--
+{% import _self as macros %}
+
+{% macro foo(data) %}
+    {{ data }}
+{% endmacro %}
+
+{% macro bar() %}
+    <br />
+{% endmacro %}
+
+{{ macros.foo(macros.bar()) }}
+--DATA--
+return array();
+--EXPECT--
+<br />
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/macros/reserved_variables.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/macros/reserved_variables.test
new file mode 100644
index 000000000..cbfb921b2
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/macros/reserved_variables.test
@@ -0,0 +1,14 @@
+--TEST--
+macro
+--TEMPLATE--
+{% from _self import test %}
+
+{% macro test(this) -%}
+    {{ this }}
+{%- endmacro %}
+
+{{ test(this) }}
+--DATA--
+return array('this' => 'foo');
+--EXPECT--
+foo
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/macros/simple.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/macros/simple.test
new file mode 100644
index 000000000..6a366cdf1
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/macros/simple.test
@@ -0,0 +1,22 @@
+--TEST--
+macro
+--TEMPLATE--
+{% import _self as test %}
+{% from _self import test %}
+
+{% macro test(a, b) -%}
+    {{ a|default('a') }}<br />
+    {{- b|default('b') }}<br />
+{%- endmacro %}
+
+{{ test.test() }}
+{{ test() }}
+{{ test.test(1, "c") }}
+{{ test(1, "c") }}
+--DATA--
+return array();
+--EXPECT--
+a<br />b<br />
+a<br />b<br />
+1<br />c<br />
+1<br />c<br />
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/macros/varargs.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/macros/varargs.test
new file mode 100644
index 000000000..412c90fae
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/macros/varargs.test
@@ -0,0 +1,21 @@
+--TEST--
+macro with arbitrary arguments
+--TEMPLATE--
+{% from _self import test1, test2 %}
+
+{% macro test1(var) %}
+    {{- var }}: {{ varargs|join(", ") }}
+{% endmacro %}
+
+{% macro test2() %}
+    {{- varargs|join(", ") }}
+{% endmacro %}
+
+{{ test1("foo", "bar", "foobar") }}
+{{ test2("foo", "bar", "foobar") }}
+--DATA--
+return array();
+--EXPECT--
+foo: bar, foobar
+
+foo, bar, foobar
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/macros/varargs_argument.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/macros/varargs_argument.test
new file mode 100644
index 000000000..9cfbbd205
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/macros/varargs_argument.test
@@ -0,0 +1,8 @@
+--TEST--
+macro with varargs argument
+--TEMPLATE--
+{% macro test(varargs) %}
+{% endmacro %}
+--EXCEPTION--
+Twig_Error_Syntax: The argument "varargs" in macro "test" cannot be defined because the variable "varargs" is reserved for arbitrary arguments in "index.twig" at line 2.
+
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/macros/with_filters.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/macros/with_filters.test
new file mode 100644
index 000000000..685626f2a
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/macros/with_filters.test
@@ -0,0 +1,14 @@
+--TEST--
+macro with a filter
+--TEMPLATE--
+{% import _self as test %}
+
+{% macro test() %}
+    {% filter escape %}foo<br />{% endfilter %}
+{% endmacro %}
+
+{{ test.test() }}
+--DATA--
+return array();
+--EXPECT--
+foo&lt;br /&gt;
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/regression/combined_debug_info.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/regression/combined_debug_info.test
new file mode 100644
index 000000000..df485783a
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/regression/combined_debug_info.test
@@ -0,0 +1,15 @@
+--TEST--
+Exception with bad line number
+--TEMPLATE--
+{% block content %}
+    {{ foo }}
+    {{ include("foo") }}
+{% endblock %}
+index
+--TEMPLATE(foo)--
+foo
+{{ foo.bar }}
+--DATA--
+return array('foo' => 'foo');
+--EXCEPTION--
+Twig_Error_Runtime: Impossible to access an attribute ("bar") on a string variable ("foo") in "foo" at line 3
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/regression/empty_token.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/regression/empty_token.test
new file mode 100644
index 000000000..65f6cd2b8
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/regression/empty_token.test
@@ -0,0 +1,8 @@
+--TEST--
+Twig outputs 0 nodes correctly
+--TEMPLATE--
+{{ foo }}0{{ foo }}
+--DATA--
+return array('foo' => 'foo')
+--EXPECT--
+foo0foo
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/regression/issue_1143.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/regression/issue_1143.test
new file mode 100644
index 000000000..ff7c8bb70
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/regression/issue_1143.test
@@ -0,0 +1,23 @@
+--TEST--
+error in twig extension
+--TEMPLATE--
+{{ object.region is not null ? object.regionChoices[object.region] }}
+--DATA--
+class House
+{
+    const REGION_S = 1;
+    const REGION_P = 2;
+
+    public static $regionChoices = array(self::REGION_S => 'house.region.s', self::REGION_P => 'house.region.p');
+
+    public function getRegionChoices()
+    {
+        return self::$regionChoices;
+    }
+}
+
+$object = new House();
+$object->region = 1;
+return array('object' => $object)
+--EXPECT--
+house.region.s
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/regression/multi_word_tests.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/regression/multi_word_tests.test
new file mode 100644
index 000000000..269a30571
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/regression/multi_word_tests.test
@@ -0,0 +1,10 @@
+--TEST--
+Twig allows multi-word tests without a custom node class
+--TEMPLATE--
+{{ 'foo' is multi word ? 'yes' : 'no' }}
+{{ 'foo bar' is multi word ? 'yes' : 'no' }}
+--DATA--
+return array()
+--EXPECT--
+no
+yes
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/regression/simple_xml_element.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/regression/simple_xml_element.test
new file mode 100644
index 000000000..60c3c51d7
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/regression/simple_xml_element.test
@@ -0,0 +1,19 @@
+--TEST--
+Twig is able to deal with SimpleXMLElement instances as variables
+--CONDITION--
+version_compare(phpversion(), '5.3.0', '>=')
+--TEMPLATE--
+Hello '{{ images.image.0.group }}'!
+{{ images.image.0.group.attributes.myattr }}
+{{ images.children().image.count() }}
+{% for image in images %}
+    - {{ image.group }}
+{% endfor %}
+--DATA--
+return array('images' => new SimpleXMLElement('<images><image><group myattr="example">foo</group></image><image><group>bar</group></image></images>'))
+--EXPECT--
+Hello 'foo'!
+example
+2
+    - foo
+    - bar
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/regression/strings_like_numbers.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/regression/strings_like_numbers.test
new file mode 100644
index 000000000..e18e11079
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/regression/strings_like_numbers.test
@@ -0,0 +1,8 @@
+--TEST--
+Twig does not confuse strings with integers in getAttribute()
+--TEMPLATE--
+{{ hash['2e2'] }}
+--DATA--
+return array('hash' => array('2e2' => 'works'))
+--EXPECT--
+works
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/basic.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/basic.test
new file mode 100644
index 000000000..2f6a3e1a0
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/basic.test
@@ -0,0 +1,26 @@
+--TEST--
+"autoescape" tag applies escaping on its children
+--TEMPLATE--
+{% autoescape %}
+{{ var }}<br />
+{% endautoescape %}
+{% autoescape 'html' %}
+{{ var }}<br />
+{% endautoescape %}
+{% autoescape false %}
+{{ var }}<br />
+{% endautoescape %}
+{% autoescape true %}
+{{ var }}<br />
+{% endautoescape %}
+{% autoescape false %}
+{{ var }}<br />
+{% endautoescape %}
+--DATA--
+return array('var' => '<br />')
+--EXPECT--
+&lt;br /&gt;<br />
+&lt;br /&gt;<br />
+<br /><br />
+&lt;br /&gt;<br />
+<br /><br />
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/blocks.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/blocks.test
new file mode 100644
index 000000000..05ab83ce3
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/blocks.test
@@ -0,0 +1,12 @@
+--TEST--
+"autoescape" tag applies escaping on embedded blocks
+--TEMPLATE--
+{% autoescape 'html' %}
+  {% block foo %}
+    {{ var }}
+  {% endblock %}
+{% endautoescape %}
+--DATA--
+return array('var' => '<br />')
+--EXPECT--
+&lt;br /&gt;
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/double_escaping.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/double_escaping.test
new file mode 100644
index 000000000..9c0972462
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/double_escaping.test
@@ -0,0 +1,10 @@
+--TEST--
+"autoescape" tag does not double-escape
+--TEMPLATE--
+{% autoescape 'html' %}
+{{ var|escape }}
+{% endautoescape %}
+--DATA--
+return array('var' => '<br />')
+--EXPECT--
+&lt;br /&gt;
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/functions.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/functions.test
new file mode 100644
index 000000000..ce7ea789e
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/functions.test
@@ -0,0 +1,83 @@
+--TEST--
+"autoescape" tag applies escaping after calling functions
+--TEMPLATE--
+
+autoescape false
+{% autoescape false %}
+
+safe_br
+{{ safe_br() }}
+
+unsafe_br
+{{ unsafe_br() }}
+
+{% endautoescape %}
+
+autoescape 'html'
+{% autoescape 'html' %}
+
+safe_br
+{{ safe_br() }}
+
+unsafe_br
+{{ unsafe_br() }}
+
+unsafe_br()|raw
+{{ (unsafe_br())|raw }}
+
+safe_br()|escape
+{{ (safe_br())|escape }}
+
+safe_br()|raw
+{{ (safe_br())|raw }}
+
+unsafe_br()|escape
+{{ (unsafe_br())|escape }}
+
+{% endautoescape %}
+
+autoescape js
+{% autoescape 'js' %}
+
+safe_br
+{{ safe_br() }}
+
+{% endautoescape %}
+--DATA--
+return array()
+--EXPECT--
+
+autoescape false
+
+safe_br
+<br />
+
+unsafe_br
+<br />
+
+
+autoescape 'html'
+
+safe_br
+<br />
+
+unsafe_br
+&lt;br /&gt;
+
+unsafe_br()|raw
+<br />
+
+safe_br()|escape
+&lt;br /&gt;
+
+safe_br()|raw
+<br />
+
+unsafe_br()|escape
+&lt;br /&gt;
+
+
+autoescape js
+
+safe_br
+\x3Cbr\x20\x2F\x3E
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/literal.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/literal.test
new file mode 100644
index 000000000..e389d4dd5
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/literal.test
@@ -0,0 +1,45 @@
+--TEST--
+"autoescape" tag does not apply escaping on literals
+--TEMPLATE--
+{% autoescape 'html' %}
+
+1. Simple literal
+{{ "<br />" }}
+
+2. Conditional expression with only literals
+{{ true ? "<br />" : "<br>" }}
+
+3. Conditional expression with a variable
+{{ true ? "<br />" : someVar }}
+
+4. Nested conditionals with only literals
+{{ true ? (true ? "<br />" : "<br>") : "\n" }}
+
+5. Nested conditionals with a variable
+{{ true ? (true ? "<br />" : someVar) : "\n" }}
+
+6. Nested conditionals with a variable marked safe
+{{ true ? (true ? "<br />" : someVar|raw) : "\n" }}
+
+{% endautoescape %}
+--DATA--
+return array()
+--EXPECT--
+
+1. Simple literal
+<br />
+
+2. Conditional expression with only literals
+<br />
+
+3. Conditional expression with a variable
+&lt;br /&gt;
+
+4. Nested conditionals with only literals
+<br />
+
+5. Nested conditionals with a variable
+&lt;br /&gt;
+
+6. Nested conditionals with a variable marked safe
+<br />
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/nested.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/nested.test
new file mode 100644
index 000000000..798e6feaf
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/nested.test
@@ -0,0 +1,26 @@
+--TEST--
+"autoescape" tags can be nested at will
+--TEMPLATE--
+{{ var }}
+{% autoescape 'html' %}
+  {{ var }}
+  {% autoescape false %}
+    {{ var }}
+    {% autoescape 'html' %}
+      {{ var }}
+    {% endautoescape %}
+    {{ var }}
+  {% endautoescape %}
+  {{ var }}
+{% endautoescape %}
+{{ var }}
+--DATA--
+return array('var' => '<br />')
+--EXPECT--
+&lt;br /&gt;
+  &lt;br /&gt;
+      <br />
+          &lt;br /&gt;
+        <br />
+    &lt;br /&gt;
+&lt;br /&gt;
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/objects.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/objects.test
new file mode 100644
index 000000000..e896aa41c
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/objects.test
@@ -0,0 +1,26 @@
+--TEST--
+"autoescape" tag applies escaping to object method calls
+--TEMPLATE--
+{% autoescape 'html' %}
+{{ user.name }}
+{{ user.name|lower }}
+{{ user }}
+{% endautoescape %}
+--DATA--
+class UserForAutoEscapeTest
+{
+  public function getName()
+  {
+    return 'Fabien<br />';
+  }
+
+  public function __toString()
+  {
+     return 'Fabien<br />';
+  }
+}
+return array('user' => new UserForAutoEscapeTest())
+--EXPECT--
+Fabien&lt;br /&gt;
+fabien&lt;br /&gt;
+Fabien&lt;br /&gt;
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/raw.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/raw.test
new file mode 100644
index 000000000..9f1cedd3a
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/raw.test
@@ -0,0 +1,10 @@
+--TEST--
+"autoescape" tag does not escape when raw is used as a filter
+--TEMPLATE--
+{% autoescape 'html' %}
+{{ var|raw }}
+{% endautoescape %}
+--DATA--
+return array('var' => '<br />')
+--EXPECT--
+<br />
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/strategy.legacy.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/strategy.legacy.test
new file mode 100644
index 000000000..bbf1356e7
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/strategy.legacy.test
@@ -0,0 +1,11 @@
+--TEST--
+"autoescape" tag accepts an escaping strategy
+--TEMPLATE--
+{% autoescape true js %}{{ var }}{% endautoescape %}
+
+{% autoescape true html %}{{ var }}{% endautoescape %}
+--DATA--
+return array('var' => '<br />"')
+--EXPECT--
+\x3Cbr\x20\x2F\x3E\x22
+&lt;br /&gt;&quot;
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/strategy.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/strategy.test
new file mode 100644
index 000000000..e496f6081
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/strategy.test
@@ -0,0 +1,11 @@
+--TEST--
+"autoescape" tag accepts an escaping strategy
+--TEMPLATE--
+{% autoescape 'js' %}{{ var }}{% endautoescape %}
+
+{% autoescape 'html' %}{{ var }}{% endautoescape %}
+--DATA--
+return array('var' => '<br />"')
+--EXPECT--
+\x3Cbr\x20\x2F\x3E\x22
+&lt;br /&gt;&quot;
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/type.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/type.test
new file mode 100644
index 000000000..4f415201d
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/type.test
@@ -0,0 +1,69 @@
+--TEST--
+escape types
+--TEMPLATE--
+
+1. autoescape 'html' |escape('js')
+
+{% autoescape 'html' %}
+<a onclick="alert(&quot;{{ msg|escape('js') }}&quot;)"></a>
+{% endautoescape %}
+
+2. autoescape 'html' |escape('js')
+
+{% autoescape 'html' %}
+<a onclick="alert(&quot;{{ msg|escape('js') }}&quot;)"></a>
+{% endautoescape %}
+
+3. autoescape 'js' |escape('js')
+
+{% autoescape 'js' %}
+<a onclick="alert(&quot;{{ msg|escape('js') }}&quot;)"></a>
+{% endautoescape %}
+
+4. no escape
+
+{% autoescape false %}
+<a onclick="alert(&quot;{{ msg }}&quot;)"></a>
+{% endautoescape %}
+
+5. |escape('js')|escape('html')
+
+{% autoescape false %}
+<a onclick="alert(&quot;{{ msg|escape('js')|escape('html') }}&quot;)"></a>
+{% endautoescape %}
+
+6. autoescape 'html' |escape('js')|escape('html')
+
+{% autoescape 'html' %}
+<a onclick="alert(&quot;{{ msg|escape('js')|escape('html') }}&quot;)"></a>
+{% endautoescape %}
+
+--DATA--
+return array('msg' => "<>\n'\"")
+--EXPECT--
+
+1. autoescape 'html' |escape('js')
+
+<a onclick="alert(&quot;\x3C\x3E\x0A\x27\x22&quot;)"></a>
+
+2. autoescape 'html' |escape('js')
+
+<a onclick="alert(&quot;\x3C\x3E\x0A\x27\x22&quot;)"></a>
+
+3. autoescape 'js' |escape('js')
+
+<a onclick="alert(&quot;\x3C\x3E\x0A\x27\x22&quot;)"></a>
+
+4. no escape
+
+<a onclick="alert(&quot;<>
+'"&quot;)"></a>
+
+5. |escape('js')|escape('html')
+
+<a onclick="alert(&quot;\x3C\x3E\x0A\x27\x22&quot;)"></a>
+
+6. autoescape 'html' |escape('js')|escape('html')
+
+<a onclick="alert(&quot;\x3C\x3E\x0A\x27\x22&quot;)"></a>
+
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/with_filters.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/with_filters.test
new file mode 100644
index 000000000..7821a9aaf
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/with_filters.test
@@ -0,0 +1,131 @@
+--TEST--
+"autoescape" tag applies escaping after calling filters
+--TEMPLATE--
+{% autoescape 'html' %}
+
+(escape_and_nl2br is an escaper filter)
+
+1. Don't escape escaper filter output
+( var is escaped by |escape_and_nl2br, line-breaks are added, 
+  the output is not escaped )
+{{ var|escape_and_nl2br }}
+
+2. Don't escape escaper filter output
+( var is escaped by |escape_and_nl2br, line-breaks are added, 
+  the output is not escaped, |raw is redundant )
+{{ var|escape_and_nl2br|raw }}
+
+3. Explicit escape
+( var is escaped by |escape_and_nl2br, line-breaks are added,
+  the output is explicitly escaped by |escape )
+{{ var|escape_and_nl2br|escape }}
+
+4. Escape non-escaper filter output
+( var is upper-cased by |upper,
+  the output is auto-escaped )
+{{ var|upper }}
+
+5. Escape if last filter is not an escaper
+( var is escaped by |escape_and_nl2br, line-breaks are added,
+  the output is upper-cased by |upper,
+  the output is auto-escaped as |upper is not an escaper )
+{{ var|escape_and_nl2br|upper }}
+
+6. Don't escape escaper filter output
+( var is upper cased by upper,
+  the output is escaped by |escape_and_nl2br, line-breaks are added,
+  the output is not escaped as |escape_and_nl2br is an escaper )
+{{ var|upper|escape_and_nl2br }}
+
+7. Escape if last filter is not an escaper
+( the output of |format is "<b>" ~ var ~ "</b>",
+  the output is auto-escaped )
+{{ "<b>%s</b>"|format(var) }}
+
+8. Escape if last filter is not an escaper
+( the output of |format is "<b>" ~ var ~ "</b>",
+  |raw is redundant,
+  the output is auto-escaped )
+{{ "<b>%s</b>"|raw|format(var) }}
+
+9. Don't escape escaper filter output
+( the output of |format is "<b>" ~ var ~ "</b>",
+  the output is not escaped due to |raw filter at the end )
+{{ "<b>%s</b>"|format(var)|raw }}
+
+10. Don't escape escaper filter output
+( the output of |format is "<b>" ~ var ~ "</b>",
+  the output is not escaped due to |raw filter at the end,
+  the |raw filter on var is redundant )
+{{ "<b>%s</b>"|format(var|raw)|raw }}
+
+{% endautoescape %}
+--DATA--
+return array('var' => "<Fabien>\nTwig")
+--EXPECT--
+
+(escape_and_nl2br is an escaper filter)
+
+1. Don't escape escaper filter output
+( var is escaped by |escape_and_nl2br, line-breaks are added, 
+  the output is not escaped )
+&lt;Fabien&gt;<br />
+Twig
+
+2. Don't escape escaper filter output
+( var is escaped by |escape_and_nl2br, line-breaks are added, 
+  the output is not escaped, |raw is redundant )
+&lt;Fabien&gt;<br />
+Twig
+
+3. Explicit escape
+( var is escaped by |escape_and_nl2br, line-breaks are added,
+  the output is explicitly escaped by |escape )
+&amp;lt;Fabien&amp;gt;&lt;br /&gt;
+Twig
+
+4. Escape non-escaper filter output
+( var is upper-cased by |upper,
+  the output is auto-escaped )
+&lt;FABIEN&gt;
+TWIG
+
+5. Escape if last filter is not an escaper
+( var is escaped by |escape_and_nl2br, line-breaks are added,
+  the output is upper-cased by |upper,
+  the output is auto-escaped as |upper is not an escaper )
+&amp;LT;FABIEN&amp;GT;&lt;BR /&gt;
+TWIG
+
+6. Don't escape escaper filter output
+( var is upper cased by upper,
+  the output is escaped by |escape_and_nl2br, line-breaks are added,
+  the output is not escaped as |escape_and_nl2br is an escaper )
+&lt;FABIEN&gt;<br />
+TWIG
+
+7. Escape if last filter is not an escaper
+( the output of |format is "<b>" ~ var ~ "</b>",
+  the output is auto-escaped )
+&lt;b&gt;&lt;Fabien&gt;
+Twig&lt;/b&gt;
+
+8. Escape if last filter is not an escaper
+( the output of |format is "<b>" ~ var ~ "</b>",
+  |raw is redundant,
+  the output is auto-escaped )
+&lt;b&gt;&lt;Fabien&gt;
+Twig&lt;/b&gt;
+
+9. Don't escape escaper filter output
+( the output of |format is "<b>" ~ var ~ "</b>",
+  the output is not escaped due to |raw filter at the end )
+<b><Fabien>
+Twig</b>
+
+10. Don't escape escaper filter output
+( the output of |format is "<b>" ~ var ~ "</b>",
+  the output is not escaped due to |raw filter at the end,
+  the |raw filter on var is redundant )
+<b><Fabien>
+Twig</b>
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/with_filters_arguments.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/with_filters_arguments.test
new file mode 100644
index 000000000..f58a1e09c
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/with_filters_arguments.test
@@ -0,0 +1,23 @@
+--TEST--
+"autoescape" tag do not applies escaping on filter arguments
+--TEMPLATE--
+{% autoescape 'html' %}
+{{ var|nl2br("<br />") }}
+{{ var|nl2br("<br />"|escape) }}
+{{ var|nl2br(sep) }}
+{{ var|nl2br(sep|raw) }}
+{{ var|nl2br(sep|escape) }}
+{% endautoescape %}
+--DATA--
+return array('var' => "<Fabien>\nTwig", 'sep' => '<br />')
+--EXPECT--
+&lt;Fabien&gt;<br />
+Twig
+&lt;Fabien&gt;&lt;br /&gt;
+Twig
+&lt;Fabien&gt;<br />
+Twig
+&lt;Fabien&gt;<br />
+Twig
+&lt;Fabien&gt;&lt;br /&gt;
+Twig
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/with_pre_escape_filters.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/with_pre_escape_filters.test
new file mode 100644
index 000000000..134c77ea8
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/with_pre_escape_filters.test
@@ -0,0 +1,68 @@
+--TEST--
+"autoescape" tag applies escaping after calling filters, and before calling pre_escape filters
+--TEMPLATE--
+{% autoescape 'html' %}
+
+(nl2br is pre_escaped for "html" and declared safe for "html")
+
+1. Pre-escape and don't post-escape
+( var|escape|nl2br )
+{{ var|nl2br }}
+
+2. Don't double-pre-escape
+( var|escape|nl2br )
+{{ var|escape|nl2br }}
+
+3. Don't escape safe values
+( var|raw|nl2br )
+{{ var|raw|nl2br }}
+
+4. Don't escape safe values
+( var|escape|nl2br|nl2br )
+{{ var|nl2br|nl2br }}
+
+5. Re-escape values that are escaped for an other contexts
+( var|escape_something|escape|nl2br )
+{{ var|escape_something|nl2br }}
+
+6. Still escape when using filters not declared safe
+( var|escape|nl2br|upper|escape )
+{{ var|nl2br|upper }}
+
+{% endautoescape %}
+--DATA--
+return array('var' => "<Fabien>\nTwig")
+--EXPECT--
+
+(nl2br is pre_escaped for "html" and declared safe for "html")
+
+1. Pre-escape and don't post-escape
+( var|escape|nl2br )
+&lt;Fabien&gt;<br />
+Twig
+
+2. Don't double-pre-escape
+( var|escape|nl2br )
+&lt;Fabien&gt;<br />
+Twig
+
+3. Don't escape safe values
+( var|raw|nl2br )
+<Fabien><br />
+Twig
+
+4. Don't escape safe values
+( var|escape|nl2br|nl2br )
+&lt;Fabien&gt;<br /><br />
+Twig
+
+5. Re-escape values that are escaped for an other contexts
+( var|escape_something|escape|nl2br )
+&lt;FABIEN&gt;<br />
+TWIG
+
+6. Still escape when using filters not declared safe
+( var|escape|nl2br|upper|escape )
+&amp;LT;FABIEN&amp;GT;&lt;BR /&gt;
+TWIG
+
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/with_preserves_safety_filters.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/with_preserves_safety_filters.test
new file mode 100644
index 000000000..32d3943b5
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/autoescape/with_preserves_safety_filters.test
@@ -0,0 +1,50 @@
+--TEST--
+"autoescape" tag handles filters preserving the safety
+--TEMPLATE--
+{% autoescape 'html' %}
+
+(preserves_safety is preserving safety for "html")
+
+1. Unsafe values are still unsafe
+( var|preserves_safety|escape )
+{{ var|preserves_safety }}
+
+2. Safe values are still safe
+( var|escape|preserves_safety )
+{{ var|escape|preserves_safety }}
+
+3. Re-escape values that are escaped for an other contexts
+( var|escape_something|preserves_safety|escape )
+{{ var|escape_something|preserves_safety }}
+
+4. Still escape when using filters not declared safe
+( var|escape|preserves_safety|replace({'FABIEN': 'FABPOT'})|escape )
+{{ var|escape|preserves_safety|replace({'FABIEN': 'FABPOT'}) }}
+
+{% endautoescape %}
+--DATA--
+return array('var' => "<Fabien>\nTwig")
+--EXPECT--
+
+(preserves_safety is preserving safety for "html")
+
+1. Unsafe values are still unsafe
+( var|preserves_safety|escape )
+&lt;FABIEN&gt;
+TWIG
+
+2. Safe values are still safe
+( var|escape|preserves_safety )
+&LT;FABIEN&GT;
+TWIG
+
+3. Re-escape values that are escaped for an other contexts
+( var|escape_something|preserves_safety|escape )
+&lt;FABIEN&gt;
+TWIG
+
+4. Still escape when using filters not declared safe
+( var|escape|preserves_safety|replace({'FABIEN': 'FABPOT'})|escape )
+&amp;LT;FABPOT&amp;GT;
+TWIG
+
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/block/basic.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/block/basic.test
new file mode 100644
index 000000000..360dcf030
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/block/basic.test
@@ -0,0 +1,11 @@
+--TEST--
+"block" tag
+--TEMPLATE--
+{% block title1 %}FOO{% endblock %}
+{% block title2 foo|lower %}
+--TEMPLATE(foo.twig)--
+{% block content %}{% endblock %}
+--DATA--
+return array('foo' => 'bar')
+--EXPECT--
+FOObar
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/block/block_unique_name.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/block/block_unique_name.test
new file mode 100644
index 000000000..bc89ec820
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/block/block_unique_name.test
@@ -0,0 +1,11 @@
+--TEST--
+"block" tag
+--TEMPLATE--
+{% block content %}
+    {% block content %}
+    {% endblock %}
+{% endblock %}
+--DATA--
+return array()
+--EXCEPTION--
+Twig_Error_Syntax: The block 'content' has already been defined line 2 in "index.twig" at line 3.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/block/special_chars.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/block/special_chars.test
new file mode 100644
index 000000000..be17fedf3
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/block/special_chars.test
@@ -0,0 +1,10 @@
+--TEST--
+"§" special chars in a block name
+--TEMPLATE--
+{% block § %}
+§
+{% endblock § %}
+--DATA--
+return array()
+--EXPECT--
+§
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/embed/basic.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/embed/basic.test
new file mode 100644
index 000000000..f44296ea0
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/embed/basic.test
@@ -0,0 +1,35 @@
+--TEST--
+"embed" tag
+--TEMPLATE--
+FOO
+{% embed "foo.twig" %}
+    {% block c1 %}
+        {{ parent() }}
+        block1extended
+    {% endblock %}
+{% endembed %}
+
+BAR
+--TEMPLATE(foo.twig)--
+A
+{% block c1 %}
+    block1
+{% endblock %}
+B
+{% block c2 %}
+    block2
+{% endblock %}
+C
+--DATA--
+return array()
+--EXPECT--
+FOO
+
+A
+            block1
+
+        block1extended
+    B
+    block2
+C
+BAR
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/embed/error_line.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/embed/error_line.test
new file mode 100644
index 000000000..71ab2e018
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/embed/error_line.test
@@ -0,0 +1,16 @@
+--TEST--
+"embed" tag
+--TEMPLATE(index.twig)--
+FOO
+{% embed "foo.twig" %}
+    {% block c1 %}
+        {{ nothing }}
+    {% endblock %}
+{% endembed %}
+BAR
+--TEMPLATE(foo.twig)--
+{% block c1 %}{% endblock %}
+--DATA--
+return array()
+--EXCEPTION--
+Twig_Error_Runtime: Variable "nothing" does not exist in "index.twig" at line 5
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/embed/multiple.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/embed/multiple.test
new file mode 100644
index 000000000..da161e6d4
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/embed/multiple.test
@@ -0,0 +1,50 @@
+--TEST--
+"embed" tag
+--TEMPLATE--
+FOO
+{% embed "foo.twig" %}
+    {% block c1 %}
+        {{ parent() }}
+        block1extended
+    {% endblock %}
+{% endembed %}
+
+{% embed "foo.twig" %}
+    {% block c1 %}
+        {{ parent() }}
+        block1extended
+    {% endblock %}
+{% endembed %}
+
+BAR
+--TEMPLATE(foo.twig)--
+A
+{% block c1 %}
+    block1
+{% endblock %}
+B
+{% block c2 %}
+    block2
+{% endblock %}
+C
+--DATA--
+return array()
+--EXPECT--
+FOO
+
+A
+            block1
+
+        block1extended
+    B
+    block2
+C
+
+A
+            block1
+
+        block1extended
+    B
+    block2
+C
+BAR
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/embed/nested.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/embed/nested.test
new file mode 100644
index 000000000..81563dcef
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/embed/nested.test
@@ -0,0 +1,42 @@
+--TEST--
+"embed" tag
+--TEMPLATE--
+{% embed "foo.twig" %}
+    {% block c1 %}
+        {{ parent() }}
+        {% embed "foo.twig" %}
+            {% block c1 %}
+                {{ parent() }}
+                block1extended
+            {% endblock %}
+        {% endembed %}
+
+    {% endblock %}
+{% endembed %}
+--TEMPLATE(foo.twig)--
+A
+{% block c1 %}
+    block1
+{% endblock %}
+B
+{% block c2 %}
+    block2
+{% endblock %}
+C
+--DATA--
+return array()
+--EXPECT--
+A
+            block1
+
+        
+A
+                    block1
+
+                block1extended
+            B
+    block2
+C
+    B
+    block2
+C
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/embed/with_extends.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/embed/with_extends.test
new file mode 100644
index 000000000..2c1dd584c
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/embed/with_extends.test
@@ -0,0 +1,60 @@
+--TEST--
+"embed" tag
+--TEMPLATE--
+{% extends "base.twig" %}
+
+{% block c1 %}
+    {{ parent() }}
+    blockc1baseextended
+{% endblock %}
+
+{% block c2 %}
+    {{ parent() }}
+
+    {% embed "foo.twig" %}
+        {% block c1 %}
+            {{ parent() }}
+            block1extended
+        {% endblock %}
+    {% endembed %}
+    {{ parent() }}
+{% endblock %}
+--TEMPLATE(base.twig)--
+A
+{% block c1 %}
+    blockc1base
+{% endblock %}
+{% block c2 %}
+    blockc2base
+{% endblock %}
+B
+--TEMPLATE(foo.twig)--
+A
+{% block c1 %}
+    block1
+{% endblock %}
+B
+{% block c2 %}
+    block2
+{% endblock %}
+C
+--DATA--
+return array()
+--EXPECT--
+A
+        blockc1base
+
+    blockc1baseextended
+        blockc2base
+
+
+    
+A
+                block1
+
+            block1extended
+        B
+    block2
+C        blockc2base
+
+B
\ No newline at end of file
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/filter/basic.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/filter/basic.test
new file mode 100644
index 000000000..82094f2f0
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/filter/basic.test
@@ -0,0 +1,10 @@
+--TEST--
+"filter" tag applies a filter on its children
+--TEMPLATE--
+{% filter upper %}
+Some text with a {{ var }}
+{% endfilter %}
+--DATA--
+return array('var' => 'var')
+--EXPECT--
+SOME TEXT WITH A VAR
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/filter/json_encode.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/filter/json_encode.test
new file mode 100644
index 000000000..3e7148bf4
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/filter/json_encode.test
@@ -0,0 +1,8 @@
+--TEST--
+"filter" tag applies a filter on its children
+--TEMPLATE--
+{% filter json_encode|raw %}test{% endfilter %}
+--DATA--
+return array()
+--EXPECT--
+"test"
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/filter/multiple.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/filter/multiple.test
new file mode 100644
index 000000000..75512ef96
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/filter/multiple.test
@@ -0,0 +1,10 @@
+--TEST--
+"filter" tags accept multiple chained filters
+--TEMPLATE--
+{% filter lower|title %}
+  {{ var }}
+{% endfilter %}
+--DATA--
+return array('var' => 'VAR')
+--EXPECT--
+    Var
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/filter/nested.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/filter/nested.test
new file mode 100644
index 000000000..7e4e4eb33
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/filter/nested.test
@@ -0,0 +1,16 @@
+--TEST--
+"filter" tags can be nested at will
+--TEMPLATE--
+{% filter lower|title %}
+  {{ var }}
+  {% filter upper %}
+    {{ var }}
+  {% endfilter %}
+  {{ var }}
+{% endfilter %}
+--DATA--
+return array('var' => 'var')
+--EXPECT--
+  Var
+      Var
+    Var
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/filter/with_for_tag.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/filter/with_for_tag.test
new file mode 100644
index 000000000..22745eadf
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/filter/with_for_tag.test
@@ -0,0 +1,13 @@
+--TEST--
+"filter" tag applies the filter on "for" tags
+--TEMPLATE--
+{% filter upper %}
+{% for item in items %}
+{{ item }}
+{% endfor %}
+{% endfilter %}
+--DATA--
+return array('items' => array('a', 'b'))
+--EXPECT--
+A
+B
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/filter/with_if_tag.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/filter/with_if_tag.test
new file mode 100644
index 000000000..afd95b296
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/filter/with_if_tag.test
@@ -0,0 +1,29 @@
+--TEST--
+"filter" tag applies the filter on "if" tags
+--TEMPLATE--
+{% filter upper %}
+{% if items %}
+{{ items|join(', ') }}
+{% endif %}
+
+{% if items.3 is defined %}
+FOO
+{% else %}
+{{ items.1 }}
+{% endif %}
+
+{% if items.3 is defined %}
+FOO
+{% elseif items.1 %}
+{{ items.0 }}
+{% endif %}
+
+{% endfilter %}
+--DATA--
+return array('items' => array('a', 'b'))
+--EXPECT--
+A, B
+
+B
+
+A
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/condition.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/condition.test
new file mode 100644
index 000000000..380531f78
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/condition.test
@@ -0,0 +1,14 @@
+--TEST--
+"for" tag takes a condition
+--TEMPLATE--
+{% for i in 1..5 if i is odd -%}
+    {{ loop.index }}.{{ i }}{{ foo.bar }}
+{% endfor %}
+--DATA--
+return array('foo' => array('bar' => 'X'))
+--CONFIG--
+return array('strict_variables' => false)
+--EXPECT--
+1.1X
+2.3X
+3.5X
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/context.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/context.test
new file mode 100644
index 000000000..ddc69307b
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/context.test
@@ -0,0 +1,18 @@
+--TEST--
+"for" tag keeps the context safe
+--TEMPLATE--
+{% for item in items %}
+  {% for item in items %}
+    * {{ item }}
+  {% endfor %}
+  * {{ item }}
+{% endfor %}
+--DATA--
+return array('items' => array('a', 'b'))
+--EXPECT--
+      * a
+      * b
+    * a
+      * a
+      * b
+    * b
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/else.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/else.test
new file mode 100644
index 000000000..20ccc880c
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/else.test
@@ -0,0 +1,23 @@
+--TEST--
+"for" tag can use an "else" clause
+--TEMPLATE--
+{% for item in items %}
+  * {{ item }}
+{% else %}
+  no item
+{% endfor %}
+--DATA--
+return array('items' => array('a', 'b'))
+--EXPECT--
+  * a
+  * b
+--DATA--
+return array('items' => array())
+--EXPECT--
+  no item
+--DATA--
+return array()
+--CONFIG--
+return array('strict_variables' => false)
+--EXPECT--
+  no item
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/inner_variables.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/inner_variables.test
new file mode 100644
index 000000000..49fb9ca6f
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/inner_variables.test
@@ -0,0 +1,17 @@
+--TEST--
+"for" tag does not reset inner variables
+--TEMPLATE--
+{% for i in 1..2 %}
+  {% for j in 0..2 %}
+    {{k}}{% set k = k+1 %} {{ loop.parent.loop.index }}
+  {% endfor %}
+{% endfor %}
+--DATA--
+return array('k' => 0)
+--EXPECT--
+      0 1
+      1 1
+      2 1
+        3 2
+      4 2
+      5 2
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/keys.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/keys.test
new file mode 100644
index 000000000..4e22cb473
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/keys.test
@@ -0,0 +1,11 @@
+--TEST--
+"for" tag can iterate over keys
+--TEMPLATE--
+{% for key in items|keys %}
+  * {{ key }}
+{% endfor %}
+--DATA--
+return array('items' => array('a', 'b'))
+--EXPECT--
+  * 0
+  * 1
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/keys_and_values.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/keys_and_values.test
new file mode 100644
index 000000000..4c211689d
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/keys_and_values.test
@@ -0,0 +1,11 @@
+--TEST--
+"for" tag can iterate over keys and values
+--TEMPLATE--
+{% for key, item in items %}
+  * {{ key }}/{{ item }}
+{% endfor %}
+--DATA--
+return array('items' => array('a', 'b'))
+--EXPECT--
+  * 0/a
+  * 1/b
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/loop_context.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/loop_context.test
new file mode 100644
index 000000000..93bc76a1f
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/loop_context.test
@@ -0,0 +1,19 @@
+--TEST--
+"for" tag adds a loop variable to the context
+--TEMPLATE--
+{% for item in items %}
+  * {{ loop.index }}/{{ loop.index0 }}
+  * {{ loop.revindex }}/{{ loop.revindex0 }}
+  * {{ loop.first }}/{{ loop.last }}/{{ loop.length }}
+
+{% endfor %}
+--DATA--
+return array('items' => array('a', 'b'))
+--EXPECT--
+  * 1/0
+  * 2/1
+  * 1//2
+
+  * 2/1
+  * 1/0
+  * /1/2
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/loop_context_local.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/loop_context_local.test
new file mode 100644
index 000000000..58af2c326
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/loop_context_local.test
@@ -0,0 +1,10 @@
+--TEST--
+"for" tag adds a loop variable to the context locally
+--TEMPLATE--
+{% for item in items %}
+{% endfor %}
+{% if loop is not defined %}WORKS{% endif %}
+--DATA--
+return array('items' => array())
+--EXPECT--
+WORKS
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/loop_not_defined.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/loop_not_defined.test
new file mode 100644
index 000000000..6a2af63b6
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/loop_not_defined.test
@@ -0,0 +1,10 @@
+--TEST--
+"for" tag
+--TEMPLATE--
+{% for i, item in items if i > 0 %}
+    {{ loop.last }}
+{% endfor %}
+--DATA--
+return array('items' => array('a', 'b'))
+--EXCEPTION--
+Twig_Error_Syntax: The "loop.last" variable is not defined when looping with a condition in "index.twig" at line 3.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/loop_not_defined_cond.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/loop_not_defined_cond.test
new file mode 100644
index 000000000..1e819ca0a
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/loop_not_defined_cond.test
@@ -0,0 +1,9 @@
+--TEST--
+"for" tag
+--TEMPLATE--
+{% for i, item in items if loop.last > 0 %}
+{% endfor %}
+--DATA--
+return array('items' => array('a', 'b'))
+--EXCEPTION--
+Twig_Error_Syntax: The "loop" variable cannot be used in a looping condition in "index.twig" at line 2.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/nested_else.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/nested_else.test
new file mode 100644
index 000000000..f8b9f6bc1
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/nested_else.test
@@ -0,0 +1,17 @@
+--TEST--
+"for" tag can use an "else" clause
+--TEMPLATE--
+{% for item in items %}
+  {% for item in items1 %}
+    * {{ item }}
+  {% else %}
+    no {{ item }}
+  {% endfor %}
+{% else %}
+  no item1
+{% endfor %}
+--DATA--
+return array('items' => array('a', 'b'), 'items1' => array())
+--EXPECT--
+no a
+        no b
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/objects.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/objects.test
new file mode 100644
index 000000000..503443792
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/objects.test
@@ -0,0 +1,43 @@
+--TEST--
+"for" tag iterates over iterable objects
+--TEMPLATE--
+{% for item in items %}
+  * {{ item }}
+  * {{ loop.index }}/{{ loop.index0 }}
+  * {{ loop.first }}
+
+{% endfor %}
+
+{% for key, value in items %}
+  * {{ key }}/{{ value }}
+{% endfor %}
+
+{% for key in items|keys %}
+  * {{ key }}
+{% endfor %}
+--DATA--
+class ItemsIterator implements Iterator
+{
+  protected $values = array('foo' => 'bar', 'bar' => 'foo');
+  public function current() { return current($this->values); }
+  public function key() { return key($this->values); }
+  public function next() { return next($this->values); }
+  public function rewind() { return reset($this->values); }
+  public function valid() { return false !== current($this->values); }
+}
+return array('items' => new ItemsIterator())
+--EXPECT--
+  * bar
+  * 1/0
+  * 1
+
+  * foo
+  * 2/1
+  * 
+
+
+  * foo/bar
+  * bar/foo
+
+  * foo
+  * bar
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/objects_countable.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/objects_countable.test
new file mode 100644
index 000000000..4a1ff6119
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/objects_countable.test
@@ -0,0 +1,47 @@
+--TEST--
+"for" tag iterates over iterable and countable objects
+--TEMPLATE--
+{% for item in items %}
+  * {{ item }}
+  * {{ loop.index }}/{{ loop.index0 }}
+  * {{ loop.revindex }}/{{ loop.revindex0 }}
+  * {{ loop.first }}/{{ loop.last }}/{{ loop.length }}
+
+{% endfor %}
+
+{% for key, value in items %}
+  * {{ key }}/{{ value }}
+{% endfor %}
+
+{% for key in items|keys %}
+  * {{ key }}
+{% endfor %}
+--DATA--
+class ItemsIteratorCountable implements Iterator, Countable
+{
+  protected $values = array('foo' => 'bar', 'bar' => 'foo');
+  public function current() { return current($this->values); }
+  public function key() { return key($this->values); }
+  public function next() { return next($this->values); }
+  public function rewind() { return reset($this->values); }
+  public function valid() { return false !== current($this->values); }
+  public function count() { return count($this->values); }
+}
+return array('items' => new ItemsIteratorCountable())
+--EXPECT--
+  * bar
+  * 1/0
+  * 2/1
+  * 1//2
+
+  * foo
+  * 2/1
+  * 1/0
+  * /1/2
+
+
+  * foo/bar
+  * bar/foo
+
+  * foo
+  * bar
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/recursive.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/recursive.test
new file mode 100644
index 000000000..17b2e2223
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/recursive.test
@@ -0,0 +1,18 @@
+--TEST--
+"for" tags can be nested
+--TEMPLATE--
+{% for key, item in items %}
+* {{ key }} ({{ loop.length }}):
+{% for value in item %}
+  * {{ value }} ({{ loop.length }})
+{% endfor %}
+{% endfor %}
+--DATA--
+return array('items' => array('a' => array('a1', 'a2', 'a3'), 'b' => array('b1')))
+--EXPECT--
+* a (2):
+  * a1 (3)
+  * a2 (3)
+  * a3 (3)
+* b (2):
+  * b1 (1)
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/values.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/values.test
new file mode 100644
index 000000000..82f2ae8a4
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/for/values.test
@@ -0,0 +1,11 @@
+--TEST--
+"for" tag iterates over item values
+--TEMPLATE--
+{% for item in items %}
+  * {{ item }}
+{% endfor %}
+--DATA--
+return array('items' => array('a', 'b'))
+--EXPECT--
+  * a
+  * b
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/from.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/from.test
new file mode 100644
index 000000000..5f5da0ec1
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/from.test
@@ -0,0 +1,14 @@
+--TEST--
+global variables
+--TEMPLATE--
+{% include "included.twig" %}
+{% from "included.twig" import foobar %}
+{{ foobar() }}
+--TEMPLATE(included.twig)--
+{% macro foobar() %}
+called foobar
+{% endmacro %}
+--DATA--
+return array();
+--EXPECT--
+called foobar
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/if/basic.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/if/basic.test
new file mode 100644
index 000000000..c1c3d2768
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/if/basic.test
@@ -0,0 +1,22 @@
+--TEST--
+"if" creates a condition
+--TEMPLATE--
+{% if a is defined %}
+  {{ a }}
+{% elseif b is defined %}
+  {{ b }}
+{% else %}
+  NOTHING
+{% endif %}
+--DATA--
+return array('a' => 'a')
+--EXPECT--
+  a
+--DATA--
+return array('b' => 'b')
+--EXPECT--
+  b
+--DATA--
+return array()
+--EXPECT--
+  NOTHING
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/if/expression.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/if/expression.test
new file mode 100644
index 000000000..edfb73df4
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/if/expression.test
@@ -0,0 +1,22 @@
+--TEST--
+"if" takes an expression as a test
+--TEMPLATE--
+{% if a < 2 %}
+  A1
+{% elseif a > 10 %}
+  A2
+{% else %}
+  A3
+{% endif %}
+--DATA--
+return array('a' => 1)
+--EXPECT--
+  A1
+--DATA--
+return array('a' => 12)
+--EXPECT--
+  A2
+--DATA--
+return array('a' => 7)
+--EXPECT--
+  A3
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/basic.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/basic.test
new file mode 100644
index 000000000..8fe1a6c13
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/basic.test
@@ -0,0 +1,16 @@
+--TEST--
+"include" tag
+--TEMPLATE--
+FOO
+{% include "foo.twig" %}
+
+BAR
+--TEMPLATE(foo.twig)--
+FOOBAR
+--DATA--
+return array()
+--EXPECT--
+FOO
+
+FOOBAR
+BAR
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/expression.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/expression.test
new file mode 100644
index 000000000..eaeeb112e
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/expression.test
@@ -0,0 +1,16 @@
+--TEST--
+"include" tag allows expressions for the template to include
+--TEMPLATE--
+FOO
+{% include foo %}
+
+BAR
+--TEMPLATE(foo.twig)--
+FOOBAR
+--DATA--
+return array('foo' => 'foo.twig')
+--EXPECT--
+FOO
+
+FOOBAR
+BAR
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/ignore_missing.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/ignore_missing.test
new file mode 100644
index 000000000..24aed06de
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/ignore_missing.test
@@ -0,0 +1,10 @@
+--TEST--
+"include" tag
+--TEMPLATE--
+{% include ["foo.twig", "bar.twig"] ignore missing %}
+{% include "foo.twig" ignore missing %}
+{% include "foo.twig" ignore missing with {} %}
+{% include "foo.twig" ignore missing with {} only %}
+--DATA--
+return array()
+--EXPECT--
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/missing.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/missing.test
new file mode 100644
index 000000000..f25e87155
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/missing.test
@@ -0,0 +1,8 @@
+--TEST--
+"include" tag
+--TEMPLATE--
+{% include "foo.twig" %}
+--DATA--
+return array();
+--EXCEPTION--
+Twig_Error_Loader: Template "foo.twig" is not defined in "index.twig" at line 2.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/missing_nested.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/missing_nested.test
new file mode 100644
index 000000000..86c186444
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/missing_nested.test
@@ -0,0 +1,16 @@
+--TEST--
+"include" tag
+--TEMPLATE--
+{% extends "base.twig" %}
+
+{% block content %}
+    {{ parent() }}
+{% endblock %}
+--TEMPLATE(base.twig)--
+{% block content %}
+    {% include "foo.twig" %}
+{% endblock %}
+--DATA--
+return array();
+--EXCEPTION--
+Twig_Error_Loader: Template "foo.twig" is not defined in "base.twig" at line 3.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/only.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/only.test
new file mode 100644
index 000000000..77760a09e
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/only.test
@@ -0,0 +1,16 @@
+--TEST--
+"include" tag accept variables and only
+--TEMPLATE--
+{% include "foo.twig" %}
+{% include "foo.twig" only %}
+{% include "foo.twig" with {'foo1': 'bar'} %}
+{% include "foo.twig" with {'foo1': 'bar'} only %}
+--TEMPLATE(foo.twig)--
+{% for k, v in _context %}{{ k }},{% endfor %}
+--DATA--
+return array('foo' => 'bar')
+--EXPECT--
+foo,global,_parent,
+global,_parent,
+foo,global,foo1,_parent,
+foo1,global,_parent,
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/template_instance.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/template_instance.test
new file mode 100644
index 000000000..6ba064a38
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/template_instance.test
@@ -0,0 +1,10 @@
+--TEST--
+"include" tag accepts Twig_Template instance
+--TEMPLATE--
+{% include foo %} FOO
+--TEMPLATE(foo.twig)--
+BAR
+--DATA--
+return array('foo' => $twig->loadTemplate('foo.twig'))
+--EXPECT--
+BAR FOO
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/templates_as_array.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/templates_as_array.test
new file mode 100644
index 000000000..ab670ee06
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/templates_as_array.test
@@ -0,0 +1,12 @@
+--TEST--
+"include" tag
+--TEMPLATE--
+{% include ["foo.twig", "bar.twig"] %}
+{% include ["bar.twig", "foo.twig"] %}
+--TEMPLATE(foo.twig)--
+foo
+--DATA--
+return array()
+--EXPECT--
+foo
+foo
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/with_variables.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/with_variables.test
new file mode 100644
index 000000000..41384ac7c
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/include/with_variables.test
@@ -0,0 +1,12 @@
+--TEST--
+"include" tag accept variables
+--TEMPLATE--
+{% include "foo.twig" with {'foo': 'bar'} %}
+{% include "foo.twig" with vars %}
+--TEMPLATE(foo.twig)--
+{{ foo }}
+--DATA--
+return array('vars' => array('foo' => 'bar'))
+--EXPECT--
+bar
+bar
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/basic.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/basic.test
new file mode 100644
index 000000000..0778a4b49
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/basic.test
@@ -0,0 +1,14 @@
+--TEST--
+"extends" tag
+--TEMPLATE--
+{% extends "foo.twig" %}
+
+{% block content %}
+FOO
+{% endblock %}
+--TEMPLATE(foo.twig)--
+{% block content %}{% endblock %}
+--DATA--
+return array()
+--EXPECT--
+FOO
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/block_expr.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/block_expr.test
new file mode 100644
index 000000000..9a81499ab
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/block_expr.test
@@ -0,0 +1,32 @@
+--TEST--
+block_expr
+--TEMPLATE--
+{% extends "base.twig" %}
+
+{% block element -%}
+    Element:
+    {{- parent() -}}
+{% endblock %}
+--TEMPLATE(base.twig)--
+{% spaceless %}
+{% block element -%}
+    <div>
+        {%- if item.children is defined %}
+            {%- for item in item.children %}
+                {{- block('element') -}}
+            {% endfor %}
+        {%- endif -%}
+    </div>
+{%- endblock %}
+{% endspaceless %}
+--DATA--
+return array(
+    'item' => array(
+        'children' => array(
+            null,
+            null,
+        )
+    )
+)
+--EXPECT--
+Element:<div>Element:<div></div>Element:<div></div></div>
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/block_expr2.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/block_expr2.test
new file mode 100644
index 000000000..3e868c0da
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/block_expr2.test
@@ -0,0 +1,34 @@
+--TEST--
+block_expr2
+--TEMPLATE--
+{% extends "base2.twig" %}
+
+{% block element -%}
+    Element:
+    {{- parent() -}}
+{% endblock %}
+--TEMPLATE(base2.twig)--
+{% extends "base.twig" %}
+--TEMPLATE(base.twig)--
+{% spaceless %}
+{% block element -%}
+    <div>
+        {%- if item.children is defined %}
+            {%- for item in item.children %}
+                {{- block('element') -}}
+            {% endfor %}
+        {%- endif -%}
+    </div>
+{%- endblock %}
+{% endspaceless %}
+--DATA--
+return array(
+    'item' => array(
+        'children' => array(
+            null,
+            null,
+        )
+    )
+)
+--EXPECT--
+Element:<div>Element:<div></div>Element:<div></div></div>
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/conditional.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/conditional.test
new file mode 100644
index 000000000..8576e773a
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/conditional.test
@@ -0,0 +1,14 @@
+--TEST--
+"extends" tag
+--TEMPLATE--
+{% extends standalone ? foo : 'bar.twig' %}
+
+{% block content %}{{ parent() }}FOO{% endblock %}
+--TEMPLATE(foo.twig)--
+{% block content %}FOO{% endblock %}
+--TEMPLATE(bar.twig)--
+{% block content %}BAR{% endblock %}
+--DATA--
+return array('foo' => 'foo.twig', 'standalone' => true)
+--EXPECT--
+FOOFOO
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/dynamic.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/dynamic.test
new file mode 100644
index 000000000..ee06ddce3
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/dynamic.test
@@ -0,0 +1,14 @@
+--TEST--
+"extends" tag
+--TEMPLATE--
+{% extends foo %}
+
+{% block content %}
+FOO
+{% endblock %}
+--TEMPLATE(foo.twig)--
+{% block content %}{% endblock %}
+--DATA--
+return array('foo' => 'foo.twig')
+--EXPECT--
+FOO
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/empty.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/empty.test
new file mode 100644
index 000000000..784f35718
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/empty.test
@@ -0,0 +1,10 @@
+--TEST--
+"extends" tag
+--TEMPLATE--
+{% extends "foo.twig" %}
+--TEMPLATE(foo.twig)--
+{% block content %}FOO{% endblock %}
+--DATA--
+return array()
+--EXPECT--
+FOO
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/extends_as_array.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/extends_as_array.test
new file mode 100644
index 000000000..a1cb1ce8a
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/extends_as_array.test
@@ -0,0 +1,12 @@
+--TEST--
+"extends" tag
+--TEMPLATE--
+{% extends ["foo.twig", "bar.twig"] %}
+--TEMPLATE(bar.twig)--
+{% block content %}
+foo
+{% endblock %}
+--DATA--
+return array()
+--EXPECT--
+foo
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/extends_as_array_with_empty_name.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/extends_as_array_with_empty_name.test
new file mode 100644
index 000000000..acc74f6a1
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/extends_as_array_with_empty_name.test
@@ -0,0 +1,12 @@
+--TEST--
+"extends" tag
+--TEMPLATE--
+{% extends ["", "bar.twig"] %}
+--TEMPLATE(bar.twig)--
+{% block content %}
+foo
+{% endblock %}
+--DATA--
+return array()
+--EXPECT--
+foo
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/extends_as_array_with_null_name.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/extends_as_array_with_null_name.test
new file mode 100644
index 000000000..cfa648d41
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/extends_as_array_with_null_name.test
@@ -0,0 +1,12 @@
+--TEST--
+"extends" tag
+--TEMPLATE--
+{% extends [null, "bar.twig"] %}
+--TEMPLATE(bar.twig)--
+{% block content %}
+foo
+{% endblock %}
+--DATA--
+return array()
+--EXPECT--
+foo
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/multiple.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/multiple.test
new file mode 100644
index 000000000..dfc2b6c49
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/multiple.test
@@ -0,0 +1,12 @@
+--TEST--
+"extends" tag
+--TEMPLATE--
+{% extends "layout.twig" %}{% block content %}{{ parent() }}index {% endblock %}
+--TEMPLATE(layout.twig)--
+{% extends "base.twig" %}{% block content %}{{ parent() }}layout {% endblock %}
+--TEMPLATE(base.twig)--
+{% block content %}base {% endblock %}
+--DATA--
+return array()
+--EXPECT--
+base layout index
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/multiple_dynamic.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/multiple_dynamic.test
new file mode 100644
index 000000000..1d3e639ca
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/multiple_dynamic.test
@@ -0,0 +1,22 @@
+--TEST--
+"extends" tag
+--TEMPLATE--
+{% set foo = 1 %}
+{{ include('parent.twig') }}
+{{ include('parent.twig') }}
+{% set foo = 2 %}
+{{ include('parent.twig') }}
+--TEMPLATE(parent.twig)--
+{% extends foo~'_parent.twig' %}{% block content %}{{ parent() }} parent{% endblock %}
+--TEMPLATE(1_parent.twig)--
+{% block content %}1{% endblock %}
+--TEMPLATE(2_parent.twig)--
+{% block content %}2{% endblock %}
+--DATA--
+return array()
+--EXPECT--
+1 parent
+
+1 parent
+
+2 parent
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/nested_blocks.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/nested_blocks.test
new file mode 100644
index 000000000..faca92591
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/nested_blocks.test
@@ -0,0 +1,22 @@
+--TEST--
+"block" tag
+--TEMPLATE--
+{% extends "foo.twig" %}
+
+{% block content %}
+    {% block subcontent %}
+        {% block subsubcontent %}
+            SUBSUBCONTENT
+        {% endblock %}
+    {% endblock %}
+{% endblock %}
+--TEMPLATE(foo.twig)--
+{% block content %}
+    {% block subcontent %}
+        SUBCONTENT
+    {% endblock %}
+{% endblock %}
+--DATA--
+return array()
+--EXPECT--
+SUBSUBCONTENT
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/nested_blocks_parent_only.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/nested_blocks_parent_only.test
new file mode 100644
index 000000000..0ad11d0c0
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/nested_blocks_parent_only.test
@@ -0,0 +1,15 @@
+--TEST--
+"block" tag
+--TEMPLATE--
+{% block content %}
+    CONTENT
+    {%- block subcontent -%}
+        SUBCONTENT
+    {%- endblock -%}
+    ENDCONTENT
+{% endblock %}
+--TEMPLATE(foo.twig)--
+--DATA--
+return array()
+--EXPECT--
+CONTENTSUBCONTENTENDCONTENT
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/nested_inheritance.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/nested_inheritance.test
new file mode 100644
index 000000000..71e3cdfd4
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/nested_inheritance.test
@@ -0,0 +1,16 @@
+--TEST--
+"extends" tag
+--TEMPLATE--
+{% extends "layout.twig" %}
+{% block inside %}INSIDE{% endblock inside %}
+--TEMPLATE(layout.twig)--
+{% extends "base.twig" %}
+{% block body %}
+    {% block inside '' %}
+{% endblock body %}
+--TEMPLATE(base.twig)--
+{% block body '' %}
+--DATA--
+return array()
+--EXPECT--
+INSIDE
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/parent.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/parent.test
new file mode 100644
index 000000000..4f975db80
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/parent.test
@@ -0,0 +1,12 @@
+--TEST--
+"extends" tag
+--TEMPLATE--
+{% extends "foo.twig" %}
+
+{% block content %}{{ parent() }}FOO{{ parent() }}{% endblock %}
+--TEMPLATE(foo.twig)--
+{% block content %}BAR{% endblock %}
+--DATA--
+return array()
+--EXPECT--
+BARFOOBAR
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/parent_change.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/parent_change.test
new file mode 100644
index 000000000..a8bc90cef
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/parent_change.test
@@ -0,0 +1,16 @@
+--TEST--
+"extends" tag
+--TEMPLATE--
+{% extends foo ? 'foo.twig' : 'bar.twig' %}
+--TEMPLATE(foo.twig)--
+FOO
+--TEMPLATE(bar.twig)--
+BAR
+--DATA--
+return array('foo' => true)
+--EXPECT--
+FOO
+--DATA--
+return array('foo' => false)
+--EXPECT--
+BAR
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/parent_in_a_block.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/parent_in_a_block.test
new file mode 100644
index 000000000..cca6dbc9b
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/parent_in_a_block.test
@@ -0,0 +1,8 @@
+--TEST--
+"extends" tag
+--TEMPLATE--
+{% block content %}
+    {% extends "foo.twig" %}
+{% endblock %}
+--EXCEPTION--
+Twig_Error_Syntax: Cannot extend from a block in "index.twig" at line 3.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/parent_isolation.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/parent_isolation.test
new file mode 100644
index 000000000..628167135
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/parent_isolation.test
@@ -0,0 +1,20 @@
+--TEST--
+"extends" tag
+--TEMPLATE--
+{% extends "base.twig" %}
+{% block content %}{% include "included.twig" %}{% endblock %}
+
+{% block footer %}Footer{% endblock %}
+--TEMPLATE(included.twig)--
+{% extends "base.twig" %}
+{% block content %}Included Content{% endblock %}
+--TEMPLATE(base.twig)--
+{% block content %}Default Content{% endblock %}
+
+{% block footer %}Default Footer{% endblock %}
+--DATA--
+return array()
+--EXPECT--
+Included Content
+Default Footer
+Footer
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/parent_nested.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/parent_nested.test
new file mode 100644
index 000000000..71e7c2080
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/parent_nested.test
@@ -0,0 +1,28 @@
+--TEST--
+"extends" tag
+--TEMPLATE--
+{% extends "foo.twig" %}
+
+{% block content %}
+  {% block inside %}
+    INSIDE OVERRIDDEN
+  {% endblock %}
+
+  BEFORE
+  {{ parent() }}
+  AFTER
+{% endblock %}
+--TEMPLATE(foo.twig)--
+{% block content %}
+  BAR
+{% endblock %}
+--DATA--
+return array()
+--EXPECT--
+
+INSIDE OVERRIDDEN
+  
+  BEFORE
+    BAR
+
+  AFTER
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/parent_without_extends.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/parent_without_extends.test
new file mode 100644
index 000000000..e29b1ac4b
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/parent_without_extends.test
@@ -0,0 +1,8 @@
+--TEST--
+"parent" tag
+--TEMPLATE--
+{% block content %}
+    {{ parent() }}
+{% endblock %}
+--EXCEPTION--
+Twig_Error_Syntax: Calling "parent" on a template that does not extend nor "use" another template is forbidden in "index.twig" at line 3.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/parent_without_extends_but_traits.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/parent_without_extends_but_traits.test
new file mode 100644
index 000000000..63c730550
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/parent_without_extends_but_traits.test
@@ -0,0 +1,14 @@
+--TEST--
+"parent" tag
+--TEMPLATE--
+{% use 'foo.twig' %}
+
+{% block content %}
+    {{ parent() }}
+{% endblock %}
+--TEMPLATE(foo.twig)--
+{% block content %}BAR{% endblock %}
+--DATA--
+return array()
+--EXPECT--
+BAR
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/template_instance.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/template_instance.test
new file mode 100644
index 000000000..d1876a52d
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/template_instance.test
@@ -0,0 +1,14 @@
+--TEST--
+"extends" tag accepts Twig_Template instance
+--TEMPLATE--
+{% extends foo %}
+
+{% block content %}
+{{ parent() }}FOO
+{% endblock %}
+--TEMPLATE(foo.twig)--
+{% block content %}BAR{% endblock %}
+--DATA--
+return array('foo' => $twig->loadTemplate('foo.twig'))
+--EXPECT--
+BARFOO
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/use.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/use.test
new file mode 100644
index 000000000..8f9ece7ce
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/inheritance/use.test
@@ -0,0 +1,44 @@
+--TEST--
+"parent" function
+--TEMPLATE--
+{% extends "parent.twig" %}
+
+{% use "use1.twig" %}
+{% use "use2.twig" %}
+
+{% block content_parent %}
+    {{ parent() }}
+{% endblock %}
+
+{% block content_use1 %}
+    {{ parent() }}
+{% endblock %}
+
+{% block content_use2 %}
+    {{ parent() }}
+{% endblock %}
+
+{% block content %}
+    {{ block('content_use1_only') }}
+    {{ block('content_use2_only') }}
+{% endblock %}
+--TEMPLATE(parent.twig)--
+{% block content_parent 'content_parent' %}
+{% block content_use1 'content_parent' %}
+{% block content_use2 'content_parent' %}
+{% block content '' %}
+--TEMPLATE(use1.twig)--
+{% block content_use1 'content_use1' %}
+{% block content_use2 'content_use1' %}
+{% block content_use1_only 'content_use1_only' %}
+--TEMPLATE(use2.twig)--
+{% block content_use2 'content_use2' %}
+{% block content_use2_only 'content_use2_only' %}
+--DATA--
+return array()
+--EXPECT--
+    content_parent
+    content_use1
+    content_use2
+    content_use1_only
+    content_use2_only
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/basic.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/basic.test
new file mode 100644
index 000000000..eef0c10d5
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/basic.test
@@ -0,0 +1,17 @@
+--TEST--
+"macro" tag
+--TEMPLATE--
+{% import _self as macros %}
+
+{{ macros.input('username') }}
+{{ macros.input('password', null, 'password', 1) }}
+
+{% macro input(name, value, type, size) %}
+  <input type="{{ type|default("text") }}" name="{{ name }}" value="{{ value|e|default('') }}" size="{{ size|default(20) }}">
+{% endmacro %}
+--DATA--
+return array()
+--EXPECT--
+  <input type="text" name="username" value="" size="20">
+
+  <input type="password" name="password" value="" size="1">
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/endmacro_name.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/endmacro_name.test
new file mode 100644
index 000000000..ae6203bb6
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/endmacro_name.test
@@ -0,0 +1,16 @@
+--TEST--
+"macro" tag supports name for endmacro
+--TEMPLATE--
+{% import _self as macros %}
+
+{{ macros.foo() }}
+{{ macros.bar() }}
+
+{% macro foo() %}foo{% endmacro %}
+{% macro bar() %}bar{% endmacro bar %}
+--DATA--
+return array()
+--EXPECT--
+foo
+bar
+
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/external.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/external.test
new file mode 100644
index 000000000..5cd3dae66
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/external.test
@@ -0,0 +1,17 @@
+--TEST--
+"macro" tag
+--TEMPLATE--
+{% import 'forms.twig' as forms %}
+
+{{ forms.input('username') }}
+{{ forms.input('password', null, 'password', 1) }}
+--TEMPLATE(forms.twig)--
+{% macro input(name, value, type, size) %}
+  <input type="{{ type|default("text") }}" name="{{ name }}" value="{{ value|e|default('') }}" size="{{ size|default(20) }}">
+{% endmacro %}
+--DATA--
+return array()
+--EXPECT--
+  <input type="text" name="username" value="" size="20">
+
+  <input type="password" name="password" value="" size="1">
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/from.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/from.test
new file mode 100644
index 000000000..205f59182
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/from.test
@@ -0,0 +1,18 @@
+--TEST--
+"macro" tag
+--TEMPLATE--
+{% from 'forms.twig' import foo %}
+{% from 'forms.twig' import foo as foobar, bar %}
+
+{{ foo('foo') }}
+{{ foobar('foo') }}
+{{ bar('foo') }}
+--TEMPLATE(forms.twig)--
+{% macro foo(name) %}foo{{ name }}{% endmacro %}
+{% macro bar(name) %}bar{{ name }}{% endmacro %}
+--DATA--
+return array()
+--EXPECT--
+foofoo
+foofoo
+barfoo
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/from_with_reserved_name.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/from_with_reserved_name.test
new file mode 100644
index 000000000..2de9765ff
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/from_with_reserved_name.test
@@ -0,0 +1,9 @@
+--TEST--
+"from" tag with reserved name
+--TEMPLATE--
+{% from 'forms.twig' import templateName %}
+--TEMPLATE(forms.twig)--
+--DATA--
+return array()
+--EXCEPTION--
+Twig_Error_Syntax: "templateName" cannot be an imported macro as it is a reserved keyword in "index.twig" at line 2.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/global.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/global.test
new file mode 100644
index 000000000..6b371768e
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/global.test
@@ -0,0 +1,14 @@
+--TEST--
+"macro" tag
+--TEMPLATE--
+{% from 'forms.twig' import foo %}
+
+{{ foo('foo') }}
+{{ foo() }}
+--TEMPLATE(forms.twig)--
+{% macro foo(name) %}{{ name|default('foo') }}{{ global }}{% endmacro %}
+--DATA--
+return array()
+--EXPECT--
+fooglobal
+fooglobal
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/import_with_reserved_nam.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/import_with_reserved_nam.test
new file mode 100644
index 000000000..7bd93c62d
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/import_with_reserved_nam.test
@@ -0,0 +1,11 @@
+--TEST--
+"from" tag with reserved name
+--TEMPLATE--
+{% import 'forms.twig' as macros %}
+
+{{ macros.parent() }}
+--TEMPLATE(forms.twig)--
+--DATA--
+return array()
+--EXCEPTION--
+Twig_Error_Syntax: "parent" cannot be called as macro as it is a reserved keyword in "index.twig" at line 4.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/reserved_name.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/reserved_name.test
new file mode 100644
index 000000000..f7c102f02
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/reserved_name.test
@@ -0,0 +1,10 @@
+--TEST--
+"macro" tag with reserved name
+--TEMPLATE--
+{% macro parent(arg1, arg2) %}
+    parent
+{% endmacro %}
+--DATA--
+return array()
+--EXCEPTION--
+Twig_Error_Syntax: "parent" cannot be used as a macro name as it is a reserved keyword in "index.twig" at line 2.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/self_import.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/self_import.test
new file mode 100644
index 000000000..17756cb6c
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/self_import.test
@@ -0,0 +1,17 @@
+--TEST--
+"macro" tag
+--TEMPLATE--
+{% import _self as forms %}
+
+{{ forms.input('username') }}
+{{ forms.input('password', null, 'password', 1) }}
+
+{% macro input(name, value, type, size) %}
+  <input type="{{ type|default("text") }}" name="{{ name }}" value="{{ value|e|default('') }}" size="{{ size|default(20) }}">
+{% endmacro %}
+--DATA--
+return array()
+--EXPECT--
+  <input type="text" name="username" value="" size="20">
+
+  <input type="password" name="password" value="" size="1">
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/special_chars.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/special_chars.test
new file mode 100644
index 000000000..372177073
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/special_chars.test
@@ -0,0 +1,14 @@
+--TEST--
+"§" as a macro name
+--TEMPLATE--
+{% import _self as macros %}
+
+{{ macros.§('foo') }}
+
+{% macro §(foo) %}
+  §{{ foo }}§
+{% endmacro %}
+--DATA--
+return array()
+--EXPECT--
+§foo§
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/super_globals.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/super_globals.test
new file mode 100644
index 000000000..567946281
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/macro/super_globals.test
@@ -0,0 +1,14 @@
+--TEST--
+Super globals as macro arguments
+--TEMPLATE--
+{% import _self as macros %}
+
+{{ macros.foo('foo') }}
+
+{% macro foo(GET) %}
+    {{ GET }}
+{% endmacro %}
+--DATA--
+return array()
+--EXPECT--
+foo
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/raw/basic.legacy.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/raw/basic.legacy.test
new file mode 100644
index 000000000..0445e8530
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/raw/basic.legacy.test
@@ -0,0 +1,10 @@
+--TEST--
+"raw" tag
+--TEMPLATE--
+{% raw %}
+{{ foo }}
+{% endraw %}
+--DATA--
+return array()
+--EXPECT--
+{{ foo }}
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/raw/mixed_usage_with_raw.legacy.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/raw/mixed_usage_with_raw.legacy.test
new file mode 100644
index 000000000..99deefc32
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/raw/mixed_usage_with_raw.legacy.test
@@ -0,0 +1,10 @@
+--TEST--
+"raw" tag
+--TEMPLATE--
+{% raw %}
+{{ foo }}
+{% endverbatim %}
+--DATA--
+return array()
+--EXCEPTION--
+Twig_Error_Syntax: Unexpected end of file: Unclosed "raw" block in "index.twig" at line 2.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/raw/whitespace_control.legacy.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/raw/whitespace_control.legacy.test
new file mode 100644
index 000000000..352bb1876
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/raw/whitespace_control.legacy.test
@@ -0,0 +1,56 @@
+--TEST--
+"raw" tag
+--TEMPLATE--
+1***
+
+{%- raw %}
+    {{ 'bla' }}
+{% endraw %}
+
+1***
+2***
+
+{%- raw -%}
+    {{ 'bla' }}
+{% endraw %}
+
+2***
+3***
+
+{%- raw -%}
+    {{ 'bla' }}
+{% endraw -%}
+
+3***
+4***
+
+{%- raw -%}
+    {{ 'bla' }}
+{%- endraw %}
+
+4***
+5***
+
+{%- raw -%}
+    {{ 'bla' }}
+{%- endraw -%}
+
+5***
+--DATA--
+return array()
+--EXPECT--
+1***
+    {{ 'bla' }}
+
+
+1***
+2***{{ 'bla' }}
+
+
+2***
+3***{{ 'bla' }}
+3***
+4***{{ 'bla' }}
+
+4***
+5***{{ 'bla' }}5***
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/sandbox/not_valid1.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/sandbox/not_valid1.test
new file mode 100644
index 000000000..dfddc1513
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/sandbox/not_valid1.test
@@ -0,0 +1,11 @@
+--TEST--
+sandbox tag
+--TEMPLATE--
+{%- sandbox %}
+    {%- include "foo.twig" %}
+    a
+{%- endsandbox %}
+--TEMPLATE(foo.twig)--
+foo
+--EXCEPTION--
+Twig_Error_Syntax: Only "include" tags are allowed within a "sandbox" section in "index.twig" at line 4.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/sandbox/not_valid2.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/sandbox/not_valid2.test
new file mode 100644
index 000000000..a33a13ee6
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/sandbox/not_valid2.test
@@ -0,0 +1,14 @@
+--TEST--
+sandbox tag
+--TEMPLATE--
+{%- sandbox %}
+    {%- include "foo.twig" %}
+
+    {% if 1 %}
+        {%- include "foo.twig" %}
+    {% endif %}
+{%- endsandbox %}
+--TEMPLATE(foo.twig)--
+foo
+--EXCEPTION--
+Twig_Error_Syntax: Only "include" tags are allowed within a "sandbox" section in "index.twig" at line 5.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/sandbox/simple.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/sandbox/simple.test
new file mode 100644
index 000000000..de20f3dba
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/sandbox/simple.test
@@ -0,0 +1,22 @@
+--TEST--
+sandbox tag
+--TEMPLATE--
+{%- sandbox %}
+    {%- include "foo.twig" %}
+{%- endsandbox %}
+
+{%- sandbox %}
+    {%- include "foo.twig" %}
+    {%- include "foo.twig" %}
+{%- endsandbox %}
+
+{%- sandbox %}{% include "foo.twig" %}{% endsandbox %}
+--TEMPLATE(foo.twig)--
+foo
+--DATA--
+return array()
+--EXPECT--
+foo
+foo
+foo
+foo
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/set/basic.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/set/basic.test
new file mode 100644
index 000000000..a5a9f830e
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/set/basic.test
@@ -0,0 +1,20 @@
+--TEST--
+"set" tag
+--TEMPLATE--
+{% set foo = 'foo' %}
+{% set bar = 'foo<br />' %}
+
+{{ foo }}
+{{ bar }}
+
+{% set foo, bar = 'foo', 'bar' %}
+
+{{ foo }}{{ bar }}
+--DATA--
+return array()
+--EXPECT--
+foo
+foo&lt;br /&gt;
+
+
+foobar
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/set/capture-empty.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/set/capture-empty.test
new file mode 100644
index 000000000..ec657f005
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/set/capture-empty.test
@@ -0,0 +1,9 @@
+--TEST--
+"set" tag block empty capture
+--TEMPLATE--
+{% set foo %}{% endset %}
+
+{% if foo %}FAIL{% endif %}
+--DATA--
+return array()
+--EXPECT--
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/set/capture.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/set/capture.test
new file mode 100644
index 000000000..f156a1a7f
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/set/capture.test
@@ -0,0 +1,10 @@
+--TEST--
+"set" tag block capture
+--TEMPLATE--
+{% set foo %}f<br />o<br />o{% endset %}
+
+{{ foo }}
+--DATA--
+return array()
+--EXPECT--
+f<br />o<br />o
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/set/expression.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/set/expression.test
new file mode 100644
index 000000000..8ff434a01
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/set/expression.test
@@ -0,0 +1,12 @@
+--TEST--
+"set" tag
+--TEMPLATE--
+{% set foo, bar = 'foo' ~ 'bar', 'bar' ~ 'foo' %}
+
+{{ foo }}
+{{ bar }}
+--DATA--
+return array()
+--EXPECT--
+foobar
+barfoo
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/spaceless/simple.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/spaceless/simple.test
new file mode 100644
index 000000000..dd06dec25
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/spaceless/simple.test
@@ -0,0 +1,12 @@
+--TEST--
+"spaceless" tag removes whites between HTML tags
+--TEMPLATE--
+{% spaceless %}
+
+    <div>   <div>   foo   </div>   </div>
+
+{% endspaceless %}
+--DATA--
+return array()
+--EXPECT--
+<div><div>   foo   </div></div>
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/special_chars.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/special_chars.test
new file mode 100644
index 000000000..789b4ba80
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/special_chars.test
@@ -0,0 +1,8 @@
+--TEST--
+"§" custom tag
+--TEMPLATE--
+{% § %}
+--DATA--
+return array()
+--EXPECT--
+§
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/trim_block.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/trim_block.test
new file mode 100644
index 000000000..1d2273f88
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/trim_block.test
@@ -0,0 +1,74 @@
+--TEST--
+Whitespace trimming on tags.
+--TEMPLATE--
+{{ 5 * '{#-'|length }}
+{{ '{{-'|length * 5 + '{%-'|length }}
+
+Trim on control tag:
+{% for i in range(1, 9) -%}
+	{{ i }}
+{%- endfor %}
+
+
+Trim on output tag:
+{% for i in range(1, 9) %}
+	{{- i -}}
+{% endfor %}
+
+
+Trim comments:
+      
+{#- Invisible -#}
+       
+After the comment.
+
+Trim leading space:
+{% if leading %}
+
+		{{- leading }}
+{% endif %}
+
+{%- if leading %}
+	{{- leading }}
+
+{%- endif %}
+
+
+Trim trailing space:
+{% if trailing -%}          
+	{{ trailing -}}
+
+{% endif -%}
+
+Combined:
+
+{%- if both -%}
+<ul>
+	<li>    {{- both -}}   </li>
+</ul>
+
+{%- endif -%}
+
+end
+--DATA--
+return array('leading' => 'leading space', 'trailing' => 'trailing space', 'both' => 'both')
+--EXPECT--
+15
+18
+
+Trim on control tag:
+123456789
+
+Trim on output tag:
+123456789
+
+Trim comments:After the comment.
+
+Trim leading space:
+leading space
+leading space
+
+Trim trailing space:
+trailing spaceCombined:<ul>
+	<li>both</li>
+</ul>end
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/aliases.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/aliases.test
new file mode 100644
index 000000000..f887006f6
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/aliases.test
@@ -0,0 +1,12 @@
+--TEST--
+"use" tag
+--TEMPLATE--
+{% use "blocks.twig" with content as foo %}
+
+{{ block('foo') }}
+--TEMPLATE(blocks.twig)--
+{% block content 'foo' %}
+--DATA--
+return array()
+--EXPECT--
+foo
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/basic.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/basic.test
new file mode 100644
index 000000000..7364d76de
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/basic.test
@@ -0,0 +1,12 @@
+--TEST--
+"use" tag
+--TEMPLATE--
+{% use "blocks.twig" %}
+
+{{ block('content') }}
+--TEMPLATE(blocks.twig)--
+{% block content 'foo' %}
+--DATA--
+return array()
+--EXPECT--
+foo
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/deep.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/deep.test
new file mode 100644
index 000000000..b551a1e60
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/deep.test
@@ -0,0 +1,22 @@
+--TEST--
+"use" tag
+--TEMPLATE--
+{% use "foo.twig" %}
+
+{{ block('content') }}
+{{ block('foo') }}
+{{ block('bar') }}
+--TEMPLATE(foo.twig)--
+{% use "bar.twig" %}
+
+{% block content 'foo' %}
+{% block foo 'foo' %}
+--TEMPLATE(bar.twig)--
+{% block content 'bar' %}
+{% block bar 'bar' %}
+--DATA--
+return array()
+--EXPECT--
+foo
+foo
+bar
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/deep_empty.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/deep_empty.test
new file mode 100644
index 000000000..05cca682e
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/deep_empty.test
@@ -0,0 +1,10 @@
+--TEST--
+"use" tag
+--TEMPLATE--
+{% use "foo.twig" %}
+--TEMPLATE(foo.twig)--
+{% use "bar.twig" %}
+--TEMPLATE(bar.twig)--
+--DATA--
+return array()
+--EXPECT--
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/inheritance.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/inheritance.test
new file mode 100644
index 000000000..0d0d470ee
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/inheritance.test
@@ -0,0 +1,25 @@
+--TEST--
+"use" tag
+--TEMPLATE--
+{% use "parent.twig" %}
+
+{{ block('container') }}
+--TEMPLATE(parent.twig)--
+{% use "ancestor.twig" %}
+
+{% block sub_container %}
+    <div class="overridden_sub_container">overridden sub_container</div>
+{% endblock %}
+--TEMPLATE(ancestor.twig)--
+{% block container %}
+    <div class="container">{{ block('sub_container') }}</div>
+{% endblock %}
+
+{% block sub_container %}
+    <div class="sub_container">sub_container</div>
+{% endblock %}
+--DATA--
+return array()
+--EXPECT--
+<div class="container">    <div class="overridden_sub_container">overridden sub_container</div>
+</div>
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/inheritance2.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/inheritance2.test
new file mode 100644
index 000000000..df95599ce
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/inheritance2.test
@@ -0,0 +1,24 @@
+--TEST--
+"use" tag
+--TEMPLATE--
+{% use "ancestor.twig" %}
+{% use "parent.twig" %}
+
+{{ block('container') }}
+--TEMPLATE(parent.twig)--
+{% block sub_container %}
+    <div class="overridden_sub_container">overridden sub_container</div>
+{% endblock %}
+--TEMPLATE(ancestor.twig)--
+{% block container %}
+    <div class="container">{{ block('sub_container') }}</div>
+{% endblock %}
+
+{% block sub_container %}
+    <div class="sub_container">sub_container</div>
+{% endblock %}
+--DATA--
+return array()
+--EXPECT--
+<div class="container">    <div class="overridden_sub_container">overridden sub_container</div>
+</div>
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/multiple.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/multiple.test
new file mode 100644
index 000000000..198be0c5c
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/multiple.test
@@ -0,0 +1,21 @@
+--TEST--
+"use" tag
+--TEMPLATE--
+{% use "foo.twig" %}
+{% use "bar.twig" %}
+
+{{ block('content') }}
+{{ block('foo') }}
+{{ block('bar') }}
+--TEMPLATE(foo.twig)--
+{% block content 'foo' %}
+{% block foo 'foo' %}
+--TEMPLATE(bar.twig)--
+{% block content 'bar' %}
+{% block bar 'bar' %}
+--DATA--
+return array()
+--EXPECT--
+bar
+foo
+bar
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/multiple_aliases.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/multiple_aliases.test
new file mode 100644
index 000000000..8de871a8a
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/multiple_aliases.test
@@ -0,0 +1,23 @@
+--TEST--
+"use" tag
+--TEMPLATE--
+{% use "foo.twig" with content as foo_content %}
+{% use "bar.twig" %}
+
+{{ block('content') }}
+{{ block('foo') }}
+{{ block('bar') }}
+{{ block('foo_content') }}
+--TEMPLATE(foo.twig)--
+{% block content 'foo' %}
+{% block foo 'foo' %}
+--TEMPLATE(bar.twig)--
+{% block content 'bar' %}
+{% block bar 'bar' %}
+--DATA--
+return array()
+--EXPECT--
+bar
+foo
+bar
+foo
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/parent_block.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/parent_block.test
new file mode 100644
index 000000000..59db23d95
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/parent_block.test
@@ -0,0 +1,24 @@
+--TEST--
+"use" tag
+--TEMPLATE--
+{% use 'file2.html.twig' with foobar as base_base_foobar %}
+{% block foobar %}
+    {{- block('base_base_foobar') -}}
+    Content of block (second override)
+{% endblock foobar %}
+--TEMPLATE(file2.html.twig)--
+{% use 'file1.html.twig' with foobar as base_foobar %}
+{% block foobar %}
+    {{- block('base_foobar') -}}
+    Content of block (first override)
+{% endblock foobar %}
+--TEMPLATE(file1.html.twig)--
+{% block foobar -%}
+    Content of block
+{% endblock foobar %}
+--DATA--
+return array()
+--EXPECT--
+Content of block
+Content of block (first override)
+Content of block (second override)
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/parent_block2.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/parent_block2.test
new file mode 100644
index 000000000..d3f302df0
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/parent_block2.test
@@ -0,0 +1,24 @@
+--TEST--
+"use" tag
+--TEMPLATE--
+{% use 'file2.html.twig'%}
+{% block foobar %}
+    {{- parent() -}}
+    Content of block (second override)
+{% endblock foobar %}
+--TEMPLATE(file2.html.twig)--
+{% use 'file1.html.twig' %}
+{% block foobar %}
+    {{- parent() -}}
+    Content of block (first override)
+{% endblock foobar %}
+--TEMPLATE(file1.html.twig)--
+{% block foobar -%}
+    Content of block
+{% endblock foobar %}
+--DATA--
+return array()
+--EXPECT--
+Content of block
+Content of block (first override)
+Content of block (second override)
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/parent_block3.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/parent_block3.test
new file mode 100644
index 000000000..95b55a469
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/use/parent_block3.test
@@ -0,0 +1,38 @@
+--TEST--
+"use" tag
+--TEMPLATE--
+{% use 'file2.html.twig' %}
+{% use 'file1.html.twig' with foo %}
+{% block foo %}
+    {{- parent() -}}
+    Content of foo (second override)
+{% endblock foo %}
+{% block bar %}
+    {{- parent() -}}
+    Content of bar (second override)
+{% endblock bar %}
+--TEMPLATE(file2.html.twig)--
+{% use 'file1.html.twig' %}
+{% block foo %}
+    {{- parent() -}}
+    Content of foo (first override)
+{% endblock foo %}
+{% block bar %}
+    {{- parent() -}}
+    Content of bar (first override)
+{% endblock bar %}
+--TEMPLATE(file1.html.twig)--
+{% block foo -%}
+    Content of foo
+{% endblock foo %}
+{% block bar -%}
+    Content of bar
+{% endblock bar %}
+--DATA--
+return array()
+--EXPECT--
+Content of foo
+Content of foo (first override)
+Content of foo (second override)
+Content of bar
+Content of bar (second override)
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/verbatim/basic.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/verbatim/basic.test
new file mode 100644
index 000000000..a95be5572
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/verbatim/basic.test
@@ -0,0 +1,10 @@
+--TEST--
+"verbatim" tag
+--TEMPLATE--
+{% verbatim %}
+{{ foo }}
+{% endverbatim %}
+--DATA--
+return array()
+--EXPECT--
+{{ foo }}
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/verbatim/mixed_usage_with_raw.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/verbatim/mixed_usage_with_raw.test
new file mode 100644
index 000000000..28626a816
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/verbatim/mixed_usage_with_raw.test
@@ -0,0 +1,10 @@
+--TEST--
+"verbatim" tag
+--TEMPLATE--
+{% verbatim %}
+{{ foo }}
+{% endraw %}
+--DATA--
+return array()
+--EXCEPTION--
+Twig_Error_Syntax: Unexpected end of file: Unclosed "verbatim" block in "index.twig" at line 2.
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/verbatim/whitespace_control.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/verbatim/whitespace_control.test
new file mode 100644
index 000000000..eb6104446
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tags/verbatim/whitespace_control.test
@@ -0,0 +1,56 @@
+--TEST--
+"verbatim" tag
+--TEMPLATE--
+1***
+
+{%- verbatim %}
+    {{ 'bla' }}
+{% endverbatim %}
+
+1***
+2***
+
+{%- verbatim -%}
+    {{ 'bla' }}
+{% endverbatim %}
+
+2***
+3***
+
+{%- verbatim -%}
+    {{ 'bla' }}
+{% endverbatim -%}
+
+3***
+4***
+
+{%- verbatim -%}
+    {{ 'bla' }}
+{%- endverbatim %}
+
+4***
+5***
+
+{%- verbatim -%}
+    {{ 'bla' }}
+{%- endverbatim -%}
+
+5***
+--DATA--
+return array()
+--EXPECT--
+1***
+    {{ 'bla' }}
+
+
+1***
+2***{{ 'bla' }}
+
+
+2***
+3***{{ 'bla' }}
+3***
+4***{{ 'bla' }}
+
+4***
+5***{{ 'bla' }}5***
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/array.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/array.test
new file mode 100644
index 000000000..1429d3753
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/array.test
@@ -0,0 +1,24 @@
+--TEST--
+array index test
+--TEMPLATE--
+{% for key, value in days %}
+{{ key }}
+{% endfor %}
+--DATA--
+return array('days' => array(
+    1  => array('money' => 9),
+    2  => array('money' => 21),
+    3  => array('money' => 38),
+    4  => array('money' => 6),
+    18 => array('money' => 6),
+    19 => array('money' => 3),
+    31 => array('money' => 11),
+));
+--EXPECT--
+1
+2
+3
+4
+18
+19
+31
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/constant.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/constant.test
new file mode 100644
index 000000000..60218ac04
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/constant.test
@@ -0,0 +1,14 @@
+--TEST--
+"const" test
+--TEMPLATE--
+{{ 8 is constant('E_NOTICE') ? 'ok' : 'no' }}
+{{ 'bar' is constant('TwigTestFoo::BAR_NAME') ? 'ok' : 'no' }}
+{{ value is constant('TwigTestFoo::BAR_NAME') ? 'ok' : 'no' }}
+{{ 2 is constant('ARRAY_AS_PROPS', object) ? 'ok' : 'no' }}
+--DATA--
+return array('value' => 'bar', 'object' => new ArrayObject(array('hi')));
+--EXPECT--
+ok
+ok
+ok
+ok
\ No newline at end of file
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/defined.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/defined.test
new file mode 100644
index 000000000..d4e204efa
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/defined.test
@@ -0,0 +1,129 @@
+--TEST--
+"defined" test
+--TEMPLATE--
+{{ definedVar                     is     defined ? 'ok' : 'ko' }}
+{{ definedVar                     is not defined ? 'ko' : 'ok' }}
+{{ undefinedVar                   is     defined ? 'ko' : 'ok' }}
+{{ undefinedVar                   is not defined ? 'ok' : 'ko' }}
+{{ zeroVar                        is     defined ? 'ok' : 'ko' }}
+{{ nullVar                        is     defined ? 'ok' : 'ko' }}
+{{ nested.definedVar              is     defined ? 'ok' : 'ko' }}
+{{ nested['definedVar']           is     defined ? 'ok' : 'ko' }}
+{{ nested.definedVar              is not defined ? 'ko' : 'ok' }}
+{{ nested.undefinedVar            is     defined ? 'ko' : 'ok' }}
+{{ nested['undefinedVar']         is     defined ? 'ko' : 'ok' }}
+{{ nested.undefinedVar            is not defined ? 'ok' : 'ko' }}
+{{ nested.zeroVar                 is     defined ? 'ok' : 'ko' }}
+{{ nested.nullVar                 is     defined ? 'ok' : 'ko' }}
+{{ nested.definedArray.0          is     defined ? 'ok' : 'ko' }}
+{{ nested['definedArray'][0]      is     defined ? 'ok' : 'ko' }}
+{{ object.foo                     is     defined ? 'ok' : 'ko' }}
+{{ object.undefinedMethod         is     defined ? 'ko' : 'ok' }}
+{{ object.getFoo()                is     defined ? 'ok' : 'ko' }}
+{{ object.getFoo('a')             is     defined ? 'ok' : 'ko' }}
+{{ object.undefinedMethod()       is     defined ? 'ko' : 'ok' }}
+{{ object.undefinedMethod('a')    is     defined ? 'ko' : 'ok' }}
+{{ object.self.foo                is     defined ? 'ok' : 'ko' }}
+{{ object.self.undefinedMethod    is     defined ? 'ko' : 'ok' }}
+{{ object.undefinedMethod.self    is     defined ? 'ko' : 'ok' }}
+{{ 0                              is     defined ? 'ok' : 'ko' }}
+{{ "foo"                          is     defined ? 'ok' : 'ko' }}
+{{ true                           is     defined ? 'ok' : 'ko' }}
+{{ false                          is     defined ? 'ok' : 'ko' }}
+{{ null                           is     defined ? 'ok' : 'ko' }}
+{{ [1, 2]                         is     defined ? 'ok' : 'ko' }}
+{{ { foo: "bar" }                 is     defined ? 'ok' : 'ko' }}
+--DATA--
+return array(
+    'definedVar' => 'defined',
+    'zeroVar'    => 0,
+    'nullVar'    => null,
+    'nested'      => array(
+        'definedVar'   => 'defined',
+        'zeroVar'      => 0,
+        'nullVar'      => null,
+        'definedArray' => array(0),
+    ),
+    'object' => new TwigTestFoo(),
+);
+--EXPECT--
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+--DATA--
+return array(
+    'definedVar' => 'defined',
+    'zeroVar'    => 0,
+    'nullVar'    => null,
+    'nested'      => array(
+        'definedVar'   => 'defined',
+        'zeroVar'      => 0,
+        'nullVar'      => null,
+        'definedArray' => array(0),
+    ),
+    'object' => new TwigTestFoo(),
+);
+--CONFIG--
+return array('strict_variables' => false)
+--EXPECT--
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
+ok
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/empty.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/empty.test
new file mode 100644
index 000000000..a776d032b
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/empty.test
@@ -0,0 +1,45 @@
+--TEST--
+"empty" test
+--TEMPLATE--
+{{ foo is empty ? 'ok' : 'ko' }}
+{{ bar is empty ? 'ok' : 'ko' }}
+{{ foobar is empty ? 'ok' : 'ko' }}
+{{ array is empty ? 'ok' : 'ko' }}
+{{ zero is empty ? 'ok' : 'ko' }}
+{{ string is empty ? 'ok' : 'ko' }}
+{{ countable_empty is empty ? 'ok' : 'ko' }}
+{{ countable_not_empty is empty ? 'ok' : 'ko' }}
+{{ markup_empty is empty ? 'ok' : 'ko' }}
+{{ markup_not_empty is empty ? 'ok' : 'ko' }}
+--DATA--
+
+class CountableStub implements Countable
+{
+    private $items;
+
+    public function __construct(array $items)
+    {
+        $this->items = $items;
+    }
+
+    public function count()
+    {
+        return count($this->items);
+    }
+}
+return array(
+    'foo' => '', 'bar' => null, 'foobar' => false, 'array' => array(), 'zero' => 0, 'string' => '0',
+    'countable_empty' => new CountableStub(array()), 'countable_not_empty' => new CountableStub(array(1, 2)),
+    'markup_empty' => new Twig_Markup('', 'UTF-8'), 'markup_not_empty' => new Twig_Markup('test', 'UTF-8'),
+);
+--EXPECT--
+ok
+ok
+ok
+ok
+ko
+ko
+ok
+ko
+ok
+ko
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/even.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/even.test
new file mode 100644
index 000000000..695b4c2f8
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/even.test
@@ -0,0 +1,14 @@
+--TEST--
+"even" test
+--TEMPLATE--
+{{ 1 is even ? 'ko' : 'ok' }}
+{{ 2 is even ? 'ok' : 'ko' }}
+{{ 1 is not even ? 'ok' : 'ko' }}
+{{ 2 is not even ? 'ko' : 'ok' }}
+--DATA--
+return array()
+--EXPECT--
+ok
+ok
+ok
+ok
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/in.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/in.test
new file mode 100644
index 000000000..545f51f81
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/in.test
@@ -0,0 +1,128 @@
+--TEST--
+Twig supports the in operator
+--TEMPLATE--
+{% if bar in foo %}
+TRUE
+{% endif %}
+{% if not (bar in foo) %}
+{% else %}
+TRUE
+{% endif %}
+{% if bar not in foo %}
+{% else %}
+TRUE
+{% endif %}
+{% if 'a' in bar %}
+TRUE
+{% endif %}
+{% if 'c' not in bar %}
+TRUE
+{% endif %}
+{% if '' in bar %}
+TRUE
+{% endif %}
+{% if '' in '' %}
+TRUE
+{% endif %}
+{% if '0' not in '' %}
+TRUE
+{% endif %}
+{% if 'a' not in '0' %}
+TRUE
+{% endif %}
+{% if '0' in '0' %}
+TRUE
+{% endif %}
+
+{{ false in [0, 1] ? 'TRUE' : 'FALSE' }}
+{{ true in [0, 1] ? 'TRUE' : 'FALSE' }}
+{{ '0' in [0, 1] ? 'TRUE' : 'FALSE' }}
+{{ '' in [0, 1] ? 'TRUE' : 'FALSE' }}
+{{ 0 in ['', 1] ? 'TRUE' : 'FALSE' }}
+
+{{ '' in 'foo' ? 'TRUE' : 'FALSE' }}
+{{ 0 in 'foo' ? 'TRUE' : 'FALSE' }}
+{{ false in 'foo' ? 'TRUE' : 'FALSE' }}
+{{ false in '100' ? 'TRUE' : 'FALSE' }}
+{{ true in '100' ? 'TRUE' : 'FALSE' }}
+
+{{ [] in [true, false] ? 'TRUE' : 'FALSE' }}
+{{ [] in [true, ''] ? 'TRUE' : 'FALSE' }}
+{{ [] in [true, []] ? 'TRUE' : 'FALSE' }}
+
+{{ resource ? 'TRUE' : 'FALSE' }}
+{{ resource in 'foo'~resource ? 'TRUE' : 'FALSE' }}
+{{ object in 'stdClass' ? 'TRUE' : 'FALSE' }}
+{{ [] in 'Array' ? 'TRUE' : 'FALSE' }}
+{{ dir_object in 'foo'~dir_object ? 'TRUE' : 'FALSE' }}
+
+{{ ''~resource in resource ? 'TRUE' : 'FALSE' }}
+{{ 'stdClass' in object ? 'TRUE' : 'FALSE' }}
+{{ 'Array' in [] ? 'TRUE' : 'FALSE' }}
+{{ ''~dir_object in dir_object ? 'TRUE' : 'FALSE' }}
+
+{{ resource in [''~resource] ? 'TRUE' : 'FALSE' }}
+{{ resource in [resource + 1 - 1] ? 'TRUE' : 'FALSE' }}
+{{ dir_object in [''~dir_object] ? 'TRUE' : 'FALSE' }}
+
+{{ 5 in 125 ? 'TRUE' : 'FALSE' }}
+{{ 5 in '125' ? 'TRUE' : 'FALSE' }}
+{{ '5' in 125 ? 'TRUE' : 'FALSE' }}
+{{ '5' in '125' ? 'TRUE' : 'FALSE' }}
+
+{{ 5.5 in 125.5 ? 'TRUE' : 'FALSE' }}
+{{ 5.5 in '125.5' ? 'TRUE' : 'FALSE' }}
+{{ '5.5' in 125.5 ? 'TRUE' : 'FALSE' }}
+--DATA--
+return array('bar' => 'bar', 'foo' => array('bar' => 'bar'), 'dir_object' => new SplFileInfo(dirname(__FILE__)), 'object' => new stdClass(), 'resource' => opendir(dirname(__FILE__)))
+--EXPECT--
+TRUE
+TRUE
+TRUE
+TRUE
+TRUE
+TRUE
+TRUE
+TRUE
+TRUE
+TRUE
+
+TRUE
+TRUE
+TRUE
+TRUE
+TRUE
+
+TRUE
+FALSE
+FALSE
+FALSE
+FALSE
+
+TRUE
+FALSE
+TRUE
+
+TRUE
+FALSE
+FALSE
+FALSE
+FALSE
+
+FALSE
+FALSE
+FALSE
+FALSE
+
+FALSE
+FALSE
+FALSE
+
+FALSE
+TRUE
+FALSE
+TRUE
+
+FALSE
+TRUE
+FALSE
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/in_with_objects.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/in_with_objects.test
new file mode 100644
index 000000000..8e08061bb
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/in_with_objects.test
@@ -0,0 +1,19 @@
+--TEST--
+Twig supports the in operator when using objects
+--TEMPLATE--
+{% if object in object_list %}
+TRUE
+{% endif %}
+--DATA--
+$foo = new TwigTestFoo();
+$foo1 = new TwigTestFoo();
+
+$foo->position = $foo1;
+$foo1->position = $foo;
+
+return array(
+    'object'      => $foo,
+    'object_list' => array($foo1, $foo),
+);
+--EXPECT--
+TRUE
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/iterable.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/iterable.test
new file mode 100644
index 000000000..ec5255013
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/iterable.test
@@ -0,0 +1,19 @@
+--TEST--
+"iterable" test
+--TEMPLATE--
+{{ foo is iterable ? 'ok' : 'ko' }}
+{{ traversable is iterable ? 'ok' : 'ko' }}
+{{ obj is iterable ? 'ok' : 'ko' }}
+{{ val is iterable ? 'ok' : 'ko' }}
+--DATA--
+return array(
+    'foo' => array(),
+    'traversable' => new ArrayIterator(array()),
+    'obj' => new stdClass(),
+    'val' => 'test',
+);
+--EXPECT--
+ok
+ok
+ko
+ko
\ No newline at end of file
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/null_coalesce.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/null_coalesce.test
new file mode 100644
index 000000000..3d148c893
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/null_coalesce.test
@@ -0,0 +1,30 @@
+--TEST--
+Twig supports the ?? operator
+--TEMPLATE--
+{{ 'OK' ?? 'KO' }}
+{{ null ?? 'OK' }}
+{{ bar ?? 'KO' }}
+{{ baz ?? 'OK' }}
+{{ foo.bar ?? 'KO' }}
+{{ foo.missing ?? 'OK' }}
+{{ foo.bar.baz.missing ?? 'OK' }}
+{{ foo['bar'] ?? 'KO' }}
+{{ foo['missing'] ?? 'OK' }}
+{{ nope ?? nada ?? 'OK' }}
+{{ 1 + nope ?? nada ?? 2 }}
+{{ 1 + nope ?? 3 + nada ?? 2 }}
+--DATA--
+return array('bar' => 'OK', 'foo' => array('bar' => 'OK'))
+--EXPECT--
+OK
+OK
+OK
+OK
+OK
+OK
+OK
+OK
+OK
+OK
+3
+6
diff --git a/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/odd.test b/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/odd.test
new file mode 100644
index 000000000..1b8311e3d
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Fixtures/tests/odd.test
@@ -0,0 +1,10 @@
+--TEST--
+"odd" test
+--TEMPLATE--
+{{ 1 is odd ? 'ok' : 'ko' }}
+{{ 2 is odd ? 'ko' : 'ok' }}
+--DATA--
+return array()
+--EXPECT--
+ok
+ok
\ No newline at end of file
diff --git a/vendor/twig/twig/test/Twig/Tests/IntegrationTest.php b/vendor/twig/twig/test/Twig/Tests/IntegrationTest.php
new file mode 100644
index 000000000..1908bcdf2
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/IntegrationTest.php
@@ -0,0 +1,229 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+// This function is defined to check that escaping strategies
+// like html works even if a function with the same name is defined.
+function html()
+{
+    return 'foo';
+}
+
+class Twig_Tests_IntegrationTest extends Twig_Test_IntegrationTestCase
+{
+    public function getExtensions()
+    {
+        $policy = new Twig_Sandbox_SecurityPolicy(array(), array(), array(), array(), array());
+
+        return array(
+            new Twig_Extension_Debug(),
+            new Twig_Extension_Sandbox($policy, false),
+            new Twig_Extension_StringLoader(),
+            new TwigTestExtension(),
+        );
+    }
+
+    public function getFixturesDir()
+    {
+        return dirname(__FILE__).'/Fixtures/';
+    }
+}
+
+function test_foo($value = 'foo')
+{
+    return $value;
+}
+
+class TwigTestFoo implements Iterator
+{
+    const BAR_NAME = 'bar';
+
+    public $position = 0;
+    public $array = array(1, 2);
+
+    public function bar($param1 = null, $param2 = null)
+    {
+        return 'bar'.($param1 ? '_'.$param1 : '').($param2 ? '-'.$param2 : '');
+    }
+
+    public function getFoo()
+    {
+        return 'foo';
+    }
+
+    public function getSelf()
+    {
+        return $this;
+    }
+
+    public function is()
+    {
+        return 'is';
+    }
+
+    public function in()
+    {
+        return 'in';
+    }
+
+    public function not()
+    {
+        return 'not';
+    }
+
+    public function strToLower($value)
+    {
+        return strtolower($value);
+    }
+
+    public function rewind()
+    {
+        $this->position = 0;
+    }
+
+    public function current()
+    {
+        return $this->array[$this->position];
+    }
+
+    public function key()
+    {
+        return 'a';
+    }
+
+    public function next()
+    {
+        ++$this->position;
+    }
+
+    public function valid()
+    {
+        return isset($this->array[$this->position]);
+    }
+}
+
+class TwigTestTokenParser_§ extends Twig_TokenParser
+{
+    public function parse(Twig_Token $token)
+    {
+        $this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
+
+        return new Twig_Node_Print(new Twig_Node_Expression_Constant('§', -1), -1);
+    }
+
+    public function getTag()
+    {
+        return '§';
+    }
+}
+
+class TwigTestExtension extends Twig_Extension
+{
+    public function getTokenParsers()
+    {
+        return array(
+            new TwigTestTokenParser_§(),
+        );
+    }
+
+    public function getFilters()
+    {
+        return array(
+            new Twig_SimpleFilter('§', array($this, '§Filter')),
+            new Twig_SimpleFilter('escape_and_nl2br', array($this, 'escape_and_nl2br'), array('needs_environment' => true, 'is_safe' => array('html'))),
+            new Twig_SimpleFilter('nl2br', array($this, 'nl2br'), array('pre_escape' => 'html', 'is_safe' => array('html'))),
+            new Twig_SimpleFilter('escape_something', array($this, 'escape_something'), array('is_safe' => array('something'))),
+            new Twig_SimpleFilter('preserves_safety', array($this, 'preserves_safety'), array('preserves_safety' => array('html'))),
+            new Twig_SimpleFilter('*_path', array($this, 'dynamic_path')),
+            new Twig_SimpleFilter('*_foo_*_bar', array($this, 'dynamic_foo')),
+        );
+    }
+
+    public function getFunctions()
+    {
+        return array(
+            new Twig_SimpleFunction('§', array($this, '§Function')),
+            new Twig_SimpleFunction('safe_br', array($this, 'br'), array('is_safe' => array('html'))),
+            new Twig_SimpleFunction('unsafe_br', array($this, 'br')),
+            new Twig_SimpleFunction('*_path', array($this, 'dynamic_path')),
+            new Twig_SimpleFunction('*_foo_*_bar', array($this, 'dynamic_foo')),
+        );
+    }
+
+    public function getTests()
+    {
+        return array(
+            new Twig_SimpleTest('multi word', array($this, 'is_multi_word')),
+        );
+    }
+
+    public function §Filter($value)
+    {
+        return "§{$value}§";
+    }
+
+    public function §Function($value)
+    {
+        return "§{$value}§";
+    }
+
+    /**
+     * nl2br which also escapes, for testing escaper filters.
+     */
+    public function escape_and_nl2br($env, $value, $sep = '<br />')
+    {
+        return $this->nl2br(twig_escape_filter($env, $value, 'html'), $sep);
+    }
+
+    /**
+     * nl2br only, for testing filters with pre_escape.
+     */
+    public function nl2br($value, $sep = '<br />')
+    {
+        // not secure if $value contains html tags (not only entities)
+        // don't use
+        return str_replace("\n", "$sep\n", $value);
+    }
+
+    public function dynamic_path($element, $item)
+    {
+        return $element.'/'.$item;
+    }
+
+    public function dynamic_foo($foo, $bar, $item)
+    {
+        return $foo.'/'.$bar.'/'.$item;
+    }
+
+    public function escape_something($value)
+    {
+        return strtoupper($value);
+    }
+
+    public function preserves_safety($value)
+    {
+        return strtoupper($value);
+    }
+
+    public function br()
+    {
+        return '<br />';
+    }
+
+    public function is_multi_word($value)
+    {
+        return false !== strpos($value, ' ');
+    }
+
+    public function getName()
+    {
+        return 'integration_test';
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/LegacyFixtures/test.legacy.test b/vendor/twig/twig/test/Twig/Tests/LegacyFixtures/test.legacy.test
new file mode 100644
index 000000000..d9c1d5085
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/LegacyFixtures/test.legacy.test
@@ -0,0 +1,8 @@
+--TEST--
+Old test classes usage
+--TEMPLATE--
+{{ 'foo' is multi word ? 'yes' : 'no' }}
+--DATA--
+return array()
+--EXPECT--
+no
diff --git a/vendor/twig/twig/test/Twig/Tests/LegacyIntegrationTest.php b/vendor/twig/twig/test/Twig/Tests/LegacyIntegrationTest.php
new file mode 100644
index 000000000..055a61707
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/LegacyIntegrationTest.php
@@ -0,0 +1,54 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_LegacyIntegrationTest extends Twig_Test_IntegrationTestCase
+{
+    public function getExtensions()
+    {
+        return array(
+            new LegacyTwigTestExtension(),
+        );
+    }
+
+    public function getFixturesDir()
+    {
+        return dirname(__FILE__).'/LegacyFixtures/';
+    }
+
+    public function getTests($name, $legacyTests = false)
+    {
+        if (!$legacyTests) {
+            return array(array('not', '-', '', array(), '', array()));
+        }
+
+        return parent::getTests($name, true);
+    }
+}
+
+class LegacyTwigTestExtension extends Twig_Extension
+{
+    public function getTests()
+    {
+        return array(
+            'multi word' => new Twig_Test_Method($this, 'is_multi_word'),
+        );
+    }
+
+    public function is_multi_word($value)
+    {
+        return false !== strpos($value, ' ');
+    }
+
+    public function getName()
+    {
+        return 'legacy_integration_test';
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/LexerTest.php b/vendor/twig/twig/test/Twig/Tests/LexerTest.php
new file mode 100644
index 000000000..4945d2247
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/LexerTest.php
@@ -0,0 +1,300 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Tests_LexerTest extends PHPUnit_Framework_TestCase
+{
+    public function testNameLabelForTag()
+    {
+        $template = '{% § %}';
+
+        $lexer = new Twig_Lexer(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+        $stream = $lexer->tokenize($template);
+
+        $stream->expect(Twig_Token::BLOCK_START_TYPE);
+        $this->assertSame('§', $stream->expect(Twig_Token::NAME_TYPE)->getValue());
+    }
+
+    public function testNameLabelForFunction()
+    {
+        $template = '{{ §() }}';
+
+        $lexer = new Twig_Lexer(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+        $stream = $lexer->tokenize($template);
+
+        $stream->expect(Twig_Token::VAR_START_TYPE);
+        $this->assertSame('§', $stream->expect(Twig_Token::NAME_TYPE)->getValue());
+    }
+
+    public function testBracketsNesting()
+    {
+        $template = '{{ {"a":{"b":"c"}} }}';
+
+        $this->assertEquals(2, $this->countToken($template, Twig_Token::PUNCTUATION_TYPE, '{'));
+        $this->assertEquals(2, $this->countToken($template, Twig_Token::PUNCTUATION_TYPE, '}'));
+    }
+
+    protected function countToken($template, $type, $value = null)
+    {
+        $lexer = new Twig_Lexer(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+        $stream = $lexer->tokenize($template);
+
+        $count = 0;
+        while (!$stream->isEOF()) {
+            $token = $stream->next();
+            if ($type === $token->getType()) {
+                if (null === $value || $value === $token->getValue()) {
+                    ++$count;
+                }
+            }
+        }
+
+        return $count;
+    }
+
+    public function testLineDirective()
+    {
+        $template = "foo\n"
+            ."bar\n"
+            ."{% line 10 %}\n"
+            ."{{\n"
+            ."baz\n"
+            ."}}\n";
+
+        $lexer = new Twig_Lexer(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+        $stream = $lexer->tokenize($template);
+
+        // foo\nbar\n
+        $this->assertSame(1, $stream->expect(Twig_Token::TEXT_TYPE)->getLine());
+        // \n (after {% line %})
+        $this->assertSame(10, $stream->expect(Twig_Token::TEXT_TYPE)->getLine());
+        // {{
+        $this->assertSame(11, $stream->expect(Twig_Token::VAR_START_TYPE)->getLine());
+        // baz
+        $this->assertSame(12, $stream->expect(Twig_Token::NAME_TYPE)->getLine());
+    }
+
+    public function testLineDirectiveInline()
+    {
+        $template = "foo\n"
+            ."bar{% line 10 %}{{\n"
+            ."baz\n"
+            ."}}\n";
+
+        $lexer = new Twig_Lexer(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+        $stream = $lexer->tokenize($template);
+
+        // foo\nbar
+        $this->assertSame(1, $stream->expect(Twig_Token::TEXT_TYPE)->getLine());
+        // {{
+        $this->assertSame(10, $stream->expect(Twig_Token::VAR_START_TYPE)->getLine());
+        // baz
+        $this->assertSame(11, $stream->expect(Twig_Token::NAME_TYPE)->getLine());
+    }
+
+    public function testLongComments()
+    {
+        $template = '{# '.str_repeat('*', 100000).' #}';
+
+        $lexer = new Twig_Lexer(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+        $lexer->tokenize($template);
+
+        // should not throw an exception
+    }
+
+    public function testLongVerbatim()
+    {
+        $template = '{% verbatim %}'.str_repeat('*', 100000).'{% endverbatim %}';
+
+        $lexer = new Twig_Lexer(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+        $lexer->tokenize($template);
+
+        // should not throw an exception
+    }
+
+    public function testLongVar()
+    {
+        $template = '{{ '.str_repeat('x', 100000).' }}';
+
+        $lexer = new Twig_Lexer(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+        $lexer->tokenize($template);
+
+        // should not throw an exception
+    }
+
+    public function testLongBlock()
+    {
+        $template = '{% '.str_repeat('x', 100000).' %}';
+
+        $lexer = new Twig_Lexer(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+        $lexer->tokenize($template);
+
+        // should not throw an exception
+    }
+
+    public function testBigNumbers()
+    {
+        $template = '{{ 922337203685477580700 }}';
+
+        $lexer = new Twig_Lexer(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+        $stream = $lexer->tokenize($template);
+        $stream->next();
+        $node = $stream->next();
+        $this->assertEquals('922337203685477580700', $node->getValue());
+    }
+
+    public function testStringWithEscapedDelimiter()
+    {
+        $tests = array(
+            "{{ 'foo \' bar' }}" => 'foo \' bar',
+            '{{ "foo \" bar" }}' => 'foo " bar',
+        );
+        $lexer = new Twig_Lexer(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+        foreach ($tests as $template => $expected) {
+            $stream = $lexer->tokenize($template);
+            $stream->expect(Twig_Token::VAR_START_TYPE);
+            $stream->expect(Twig_Token::STRING_TYPE, $expected);
+        }
+    }
+
+    public function testStringWithInterpolation()
+    {
+        $template = 'foo {{ "bar #{ baz + 1 }" }}';
+
+        $lexer = new Twig_Lexer(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+        $stream = $lexer->tokenize($template);
+        $stream->expect(Twig_Token::TEXT_TYPE, 'foo ');
+        $stream->expect(Twig_Token::VAR_START_TYPE);
+        $stream->expect(Twig_Token::STRING_TYPE, 'bar ');
+        $stream->expect(Twig_Token::INTERPOLATION_START_TYPE);
+        $stream->expect(Twig_Token::NAME_TYPE, 'baz');
+        $stream->expect(Twig_Token::OPERATOR_TYPE, '+');
+        $stream->expect(Twig_Token::NUMBER_TYPE, '1');
+        $stream->expect(Twig_Token::INTERPOLATION_END_TYPE);
+        $stream->expect(Twig_Token::VAR_END_TYPE);
+    }
+
+    public function testStringWithEscapedInterpolation()
+    {
+        $template = '{{ "bar \#{baz+1}" }}';
+
+        $lexer = new Twig_Lexer(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+        $stream = $lexer->tokenize($template);
+        $stream->expect(Twig_Token::VAR_START_TYPE);
+        $stream->expect(Twig_Token::STRING_TYPE, 'bar #{baz+1}');
+        $stream->expect(Twig_Token::VAR_END_TYPE);
+    }
+
+    public function testStringWithHash()
+    {
+        $template = '{{ "bar # baz" }}';
+
+        $lexer = new Twig_Lexer(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+        $stream = $lexer->tokenize($template);
+        $stream->expect(Twig_Token::VAR_START_TYPE);
+        $stream->expect(Twig_Token::STRING_TYPE, 'bar # baz');
+        $stream->expect(Twig_Token::VAR_END_TYPE);
+    }
+
+    /**
+     * @expectedException Twig_Error_Syntax
+     * @expectedExceptionMessage Unclosed """
+     */
+    public function testStringWithUnterminatedInterpolation()
+    {
+        $template = '{{ "bar #{x" }}';
+
+        $lexer = new Twig_Lexer(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+        $lexer->tokenize($template);
+    }
+
+    public function testStringWithNestedInterpolations()
+    {
+        $template = '{{ "bar #{ "foo#{bar}" }" }}';
+
+        $lexer = new Twig_Lexer(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+        $stream = $lexer->tokenize($template);
+        $stream->expect(Twig_Token::VAR_START_TYPE);
+        $stream->expect(Twig_Token::STRING_TYPE, 'bar ');
+        $stream->expect(Twig_Token::INTERPOLATION_START_TYPE);
+        $stream->expect(Twig_Token::STRING_TYPE, 'foo');
+        $stream->expect(Twig_Token::INTERPOLATION_START_TYPE);
+        $stream->expect(Twig_Token::NAME_TYPE, 'bar');
+        $stream->expect(Twig_Token::INTERPOLATION_END_TYPE);
+        $stream->expect(Twig_Token::INTERPOLATION_END_TYPE);
+        $stream->expect(Twig_Token::VAR_END_TYPE);
+    }
+
+    public function testStringWithNestedInterpolationsInBlock()
+    {
+        $template = '{% foo "bar #{ "foo#{bar}" }" %}';
+
+        $lexer = new Twig_Lexer(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+        $stream = $lexer->tokenize($template);
+        $stream->expect(Twig_Token::BLOCK_START_TYPE);
+        $stream->expect(Twig_Token::NAME_TYPE, 'foo');
+        $stream->expect(Twig_Token::STRING_TYPE, 'bar ');
+        $stream->expect(Twig_Token::INTERPOLATION_START_TYPE);
+        $stream->expect(Twig_Token::STRING_TYPE, 'foo');
+        $stream->expect(Twig_Token::INTERPOLATION_START_TYPE);
+        $stream->expect(Twig_Token::NAME_TYPE, 'bar');
+        $stream->expect(Twig_Token::INTERPOLATION_END_TYPE);
+        $stream->expect(Twig_Token::INTERPOLATION_END_TYPE);
+        $stream->expect(Twig_Token::BLOCK_END_TYPE);
+    }
+
+    public function testOperatorEndingWithALetterAtTheEndOfALine()
+    {
+        $template = "{{ 1 and\n0}}";
+
+        $lexer = new Twig_Lexer(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+        $stream = $lexer->tokenize($template);
+        $stream->expect(Twig_Token::VAR_START_TYPE);
+        $stream->expect(Twig_Token::NUMBER_TYPE, 1);
+        $stream->expect(Twig_Token::OPERATOR_TYPE, 'and');
+    }
+
+    /**
+     * @expectedException Twig_Error_Syntax
+     * @expectedExceptionMessage Unclosed "variable" at line 3
+     */
+    public function testUnterminatedVariable()
+    {
+        $template = '
+
+{{
+
+bar
+
+
+';
+
+        $lexer = new Twig_Lexer(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+        $lexer->tokenize($template);
+    }
+
+    /**
+     * @expectedException Twig_Error_Syntax
+     * @expectedExceptionMessage Unclosed "block" at line 3
+     */
+    public function testUnterminatedBlock()
+    {
+        $template = '
+
+{%
+
+bar
+
+
+';
+
+        $lexer = new Twig_Lexer(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+        $lexer->tokenize($template);
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Loader/ArrayTest.php b/vendor/twig/twig/test/Twig/Tests/Loader/ArrayTest.php
new file mode 100644
index 000000000..1369a6bd0
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Loader/ArrayTest.php
@@ -0,0 +1,97 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Loader_ArrayTest extends PHPUnit_Framework_TestCase
+{
+    public function testGetSource()
+    {
+        $loader = new Twig_Loader_Array(array('foo' => 'bar'));
+
+        $this->assertEquals('bar', $loader->getSource('foo'));
+    }
+
+    /**
+     * @expectedException Twig_Error_Loader
+     */
+    public function testGetSourceWhenTemplateDoesNotExist()
+    {
+        $loader = new Twig_Loader_Array(array());
+
+        $loader->getSource('foo');
+    }
+
+    public function testGetCacheKey()
+    {
+        $loader = new Twig_Loader_Array(array('foo' => 'bar'));
+
+        $this->assertEquals('bar', $loader->getCacheKey('foo'));
+    }
+
+    /**
+     * @expectedException Twig_Error_Loader
+     */
+    public function testGetCacheKeyWhenTemplateDoesNotExist()
+    {
+        $loader = new Twig_Loader_Array(array());
+
+        $loader->getCacheKey('foo');
+    }
+
+    public function testSetTemplate()
+    {
+        $loader = new Twig_Loader_Array(array());
+        $loader->setTemplate('foo', 'bar');
+
+        $this->assertEquals('bar', $loader->getSource('foo'));
+    }
+
+    public function testIsFresh()
+    {
+        $loader = new Twig_Loader_Array(array('foo' => 'bar'));
+        $this->assertTrue($loader->isFresh('foo', time()));
+    }
+
+    /**
+     * @expectedException Twig_Error_Loader
+     */
+    public function testIsFreshWhenTemplateDoesNotExist()
+    {
+        $loader = new Twig_Loader_Array(array());
+
+        $loader->isFresh('foo', time());
+    }
+
+    public function testTemplateReference()
+    {
+        $name = new Twig_Test_Loader_TemplateReference('foo');
+        $loader = new Twig_Loader_Array(array('foo' => 'bar'));
+
+        $loader->getCacheKey($name);
+        $loader->getSource($name);
+        $loader->isFresh($name, time());
+        $loader->setTemplate($name, 'foobar');
+    }
+}
+
+class Twig_Test_Loader_TemplateReference
+{
+    private $name;
+
+    public function __construct($name)
+    {
+        $this->name = $name;
+    }
+
+    public function __toString()
+    {
+        return $this->name;
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Loader/ChainTest.php b/vendor/twig/twig/test/Twig/Tests/Loader/ChainTest.php
new file mode 100644
index 000000000..4fe0db948
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Loader/ChainTest.php
@@ -0,0 +1,79 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Loader_ChainTest extends PHPUnit_Framework_TestCase
+{
+    public function testGetSource()
+    {
+        $loader = new Twig_Loader_Chain(array(
+            new Twig_Loader_Array(array('foo' => 'bar')),
+            new Twig_Loader_Array(array('foo' => 'foobar', 'bar' => 'foo')),
+        ));
+
+        $this->assertEquals('bar', $loader->getSource('foo'));
+        $this->assertEquals('foo', $loader->getSource('bar'));
+    }
+
+    /**
+     * @expectedException Twig_Error_Loader
+     */
+    public function testGetSourceWhenTemplateDoesNotExist()
+    {
+        $loader = new Twig_Loader_Chain(array());
+
+        $loader->getSource('foo');
+    }
+
+    public function testGetCacheKey()
+    {
+        $loader = new Twig_Loader_Chain(array(
+            new Twig_Loader_Array(array('foo' => 'bar')),
+            new Twig_Loader_Array(array('foo' => 'foobar', 'bar' => 'foo')),
+        ));
+
+        $this->assertEquals('bar', $loader->getCacheKey('foo'));
+        $this->assertEquals('foo', $loader->getCacheKey('bar'));
+    }
+
+    /**
+     * @expectedException Twig_Error_Loader
+     */
+    public function testGetCacheKeyWhenTemplateDoesNotExist()
+    {
+        $loader = new Twig_Loader_Chain(array());
+
+        $loader->getCacheKey('foo');
+    }
+
+    public function testAddLoader()
+    {
+        $loader = new Twig_Loader_Chain();
+        $loader->addLoader(new Twig_Loader_Array(array('foo' => 'bar')));
+
+        $this->assertEquals('bar', $loader->getSource('foo'));
+    }
+
+    public function testExists()
+    {
+        $loader1 = $this->getMock('Twig_Loader_Array', array('exists', 'getSource'), array(), '', false);
+        $loader1->expects($this->once())->method('exists')->will($this->returnValue(false));
+        $loader1->expects($this->never())->method('getSource');
+
+        $loader2 = $this->getMock('Twig_LoaderInterface');
+        $loader2->expects($this->once())->method('getSource')->will($this->returnValue('content'));
+
+        $loader = new Twig_Loader_Chain();
+        $loader->addLoader($loader1);
+        $loader->addLoader($loader2);
+
+        $this->assertTrue($loader->exists('foo'));
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Loader/FilesystemTest.php b/vendor/twig/twig/test/Twig/Tests/Loader/FilesystemTest.php
new file mode 100644
index 000000000..e07f374a3
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Loader/FilesystemTest.php
@@ -0,0 +1,175 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Loader_FilesystemTest extends PHPUnit_Framework_TestCase
+{
+    /**
+     * @dataProvider getSecurityTests
+     */
+    public function testSecurity($template)
+    {
+        $loader = new Twig_Loader_Filesystem(array(dirname(__FILE__).'/../Fixtures'));
+
+        try {
+            $loader->getCacheKey($template);
+            $this->fail();
+        } catch (Twig_Error_Loader $e) {
+            $this->assertNotContains('Unable to find template', $e->getMessage());
+        }
+    }
+
+    public function getSecurityTests()
+    {
+        return array(
+            array("AutoloaderTest\0.php"),
+            array('..\\AutoloaderTest.php'),
+            array('..\\\\\\AutoloaderTest.php'),
+            array('../AutoloaderTest.php'),
+            array('..////AutoloaderTest.php'),
+            array('./../AutoloaderTest.php'),
+            array('.\\..\\AutoloaderTest.php'),
+            array('././././././../AutoloaderTest.php'),
+            array('.\\./.\\./.\\./../AutoloaderTest.php'),
+            array('foo/../../AutoloaderTest.php'),
+            array('foo\\..\\..\\AutoloaderTest.php'),
+            array('foo/../bar/../../AutoloaderTest.php'),
+            array('foo/bar/../../../AutoloaderTest.php'),
+            array('filters/../../AutoloaderTest.php'),
+            array('filters//..//..//AutoloaderTest.php'),
+            array('filters\\..\\..\\AutoloaderTest.php'),
+            array('filters\\\\..\\\\..\\\\AutoloaderTest.php'),
+            array('filters\\//../\\/\\..\\AutoloaderTest.php'),
+            array('/../AutoloaderTest.php'),
+        );
+    }
+
+    public function testPaths()
+    {
+        $basePath = dirname(__FILE__).'/Fixtures';
+
+        $loader = new Twig_Loader_Filesystem(array($basePath.'/normal', $basePath.'/normal_bis'));
+        $loader->setPaths(array($basePath.'/named', $basePath.'/named_bis'), 'named');
+        $loader->addPath($basePath.'/named_ter', 'named');
+        $loader->addPath($basePath.'/normal_ter');
+        $loader->prependPath($basePath.'/normal_final');
+        $loader->prependPath($basePath.'/named/../named_quater', 'named');
+        $loader->prependPath($basePath.'/named_final', 'named');
+
+        $this->assertEquals(array(
+            $basePath.'/normal_final',
+            $basePath.'/normal',
+            $basePath.'/normal_bis',
+            $basePath.'/normal_ter',
+        ), $loader->getPaths());
+        $this->assertEquals(array(
+            $basePath.'/named_final',
+            $basePath.'/named/../named_quater',
+            $basePath.'/named',
+            $basePath.'/named_bis',
+            $basePath.'/named_ter',
+        ), $loader->getPaths('named'));
+
+        $this->assertEquals(
+            realpath($basePath.'/named_quater/named_absolute.html'),
+            realpath($loader->getCacheKey('@named/named_absolute.html'))
+        );
+        $this->assertEquals("path (final)\n", $loader->getSource('index.html'));
+        $this->assertEquals("path (final)\n", $loader->getSource('@__main__/index.html'));
+        $this->assertEquals("named path (final)\n", $loader->getSource('@named/index.html'));
+    }
+
+    public function testEmptyConstructor()
+    {
+        $loader = new Twig_Loader_Filesystem();
+        $this->assertEquals(array(), $loader->getPaths());
+    }
+
+    public function testGetNamespaces()
+    {
+        $loader = new Twig_Loader_Filesystem(sys_get_temp_dir());
+        $this->assertEquals(array(Twig_Loader_Filesystem::MAIN_NAMESPACE), $loader->getNamespaces());
+
+        $loader->addPath(sys_get_temp_dir(), 'named');
+        $this->assertEquals(array(Twig_Loader_Filesystem::MAIN_NAMESPACE, 'named'), $loader->getNamespaces());
+    }
+
+    public function testFindTemplateExceptionNamespace()
+    {
+        $basePath = dirname(__FILE__).'/Fixtures';
+
+        $loader = new Twig_Loader_Filesystem(array($basePath.'/normal'));
+        $loader->addPath($basePath.'/named', 'named');
+
+        try {
+            $loader->getSource('@named/nowhere.html');
+        } catch (Exception $e) {
+            $this->assertInstanceof('Twig_Error_Loader', $e);
+            $this->assertContains('Unable to find template "@named/nowhere.html"', $e->getMessage());
+        }
+    }
+
+    public function testFindTemplateWithCache()
+    {
+        $basePath = dirname(__FILE__).'/Fixtures';
+
+        $loader = new Twig_Loader_Filesystem(array($basePath.'/normal'));
+        $loader->addPath($basePath.'/named', 'named');
+
+        // prime the cache for index.html in the named namespace
+        $namedSource = $loader->getSource('@named/index.html');
+        $this->assertEquals("named path\n", $namedSource);
+
+        // get index.html from the main namespace
+        $this->assertEquals("path\n", $loader->getSource('index.html'));
+    }
+
+    public function testLoadTemplateAndRenderBlockWithCache()
+    {
+        $loader = new Twig_Loader_Filesystem(array());
+        $loader->addPath(dirname(__FILE__).'/Fixtures/themes/theme2');
+        $loader->addPath(dirname(__FILE__).'/Fixtures/themes/theme1');
+        $loader->addPath(dirname(__FILE__).'/Fixtures/themes/theme1', 'default_theme');
+
+        $twig = new Twig_Environment($loader);
+
+        $template = $twig->loadTemplate('blocks.html.twig');
+        $this->assertSame('block from theme 1', $template->renderBlock('b1', array()));
+
+        $template = $twig->loadTemplate('blocks.html.twig');
+        $this->assertSame('block from theme 2', $template->renderBlock('b2', array()));
+    }
+
+    public function getArrayInheritanceTests()
+    {
+        return array(
+            'valid array inheritance' => array('array_inheritance_valid_parent.html.twig'),
+            'array inheritance with null first template' => array('array_inheritance_null_parent.html.twig'),
+            'array inheritance with empty first template' => array('array_inheritance_empty_parent.html.twig'),
+            'array inheritance with non-existent first template' => array('array_inheritance_nonexistent_parent.html.twig'),
+        );
+    }
+
+    /**
+     * @dataProvider getArrayInheritanceTests
+     *
+     * @param $templateName string Template name with array inheritance
+     */
+    public function testArrayInheritance($templateName)
+    {
+        $loader = new Twig_Loader_Filesystem(array());
+        $loader->addPath(dirname(__FILE__).'/Fixtures/inheritance');
+
+        $twig = new Twig_Environment($loader);
+
+        $template = $twig->loadTemplate($templateName);
+        $this->assertSame('VALID Child', $template->renderBlock('body', array()));
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/array_inheritance_empty_parent.html.twig b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/array_inheritance_empty_parent.html.twig
new file mode 100644
index 000000000..6977ebf66
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/array_inheritance_empty_parent.html.twig
@@ -0,0 +1,3 @@
+{% extends ['','parent.html.twig'] %}
+
+{% block body %}{{ parent() }} Child{% endblock %}
diff --git a/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/array_inheritance_nonexistent_parent.html.twig b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/array_inheritance_nonexistent_parent.html.twig
new file mode 100644
index 000000000..5b50a8b21
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/array_inheritance_nonexistent_parent.html.twig
@@ -0,0 +1,3 @@
+{% extends ['nonexistent.html.twig','parent.html.twig'] %}
+
+{% block body %}{{ parent() }} Child{% endblock %}
diff --git a/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/array_inheritance_null_parent.html.twig b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/array_inheritance_null_parent.html.twig
new file mode 100644
index 000000000..a16b3aded
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/array_inheritance_null_parent.html.twig
@@ -0,0 +1,3 @@
+{% extends [null,'parent.html.twig'] %}
+
+{% block body %}{{ parent() }} Child{% endblock %}
diff --git a/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/array_inheritance_valid_parent.html.twig b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/array_inheritance_valid_parent.html.twig
new file mode 100644
index 000000000..4940dad41
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/array_inheritance_valid_parent.html.twig
@@ -0,0 +1,3 @@
+{% extends ['parent.html.twig','spare_parent.html.twig'] %}
+
+{% block body %}{{ parent() }} Child{% endblock %}
diff --git a/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/parent.html.twig b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/parent.html.twig
new file mode 100644
index 000000000..d594c0ed4
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/parent.html.twig
@@ -0,0 +1 @@
+{% block body %}VALID{% endblock %}
diff --git a/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/spare_parent.html.twig b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/spare_parent.html.twig
new file mode 100644
index 000000000..70b7360a2
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/inheritance/spare_parent.html.twig
@@ -0,0 +1 @@
+{% block body %}SPARE PARENT{% endblock %}
diff --git a/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/named/index.html b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/named/index.html
new file mode 100644
index 000000000..9e5449c7c
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/named/index.html
@@ -0,0 +1 @@
+named path
diff --git a/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/named_bis/index.html b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/named_bis/index.html
new file mode 100644
index 000000000..d3a272b19
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/named_bis/index.html
@@ -0,0 +1 @@
+named path (bis)
diff --git a/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/named_final/index.html b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/named_final/index.html
new file mode 100644
index 000000000..9f05d1507
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/named_final/index.html
@@ -0,0 +1 @@
+named path (final)
diff --git a/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/named_quater/named_absolute.html b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/named_quater/named_absolute.html
new file mode 100644
index 000000000..b1fb5f5d7
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/named_quater/named_absolute.html
@@ -0,0 +1 @@
+named path (quater)
diff --git a/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/named_ter/index.html b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/named_ter/index.html
new file mode 100644
index 000000000..24fb68ad2
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/named_ter/index.html
@@ -0,0 +1 @@
+named path (ter)
diff --git a/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/normal/index.html b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/normal/index.html
new file mode 100644
index 000000000..e7a8fd4d0
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/normal/index.html
@@ -0,0 +1 @@
+path
diff --git a/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/normal_bis/index.html b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/normal_bis/index.html
new file mode 100644
index 000000000..bfa916049
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/normal_bis/index.html
@@ -0,0 +1 @@
+path (bis)
diff --git a/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/normal_final/index.html b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/normal_final/index.html
new file mode 100644
index 000000000..73a089bbd
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/normal_final/index.html
@@ -0,0 +1 @@
+path (final)
diff --git a/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/normal_ter/index.html b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/normal_ter/index.html
new file mode 100644
index 000000000..b7ad97d8f
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/normal_ter/index.html
@@ -0,0 +1 @@
+path (ter)
diff --git a/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/themes/theme1/blocks.html.twig b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/themes/theme1/blocks.html.twig
new file mode 100644
index 000000000..dd0cbc2e7
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/themes/theme1/blocks.html.twig
@@ -0,0 +1,3 @@
+{% block b1 %}block from theme 1{% endblock %}
+
+{% block b2 %}block from theme 1{% endblock %}
diff --git a/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/themes/theme2/blocks.html.twig b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/themes/theme2/blocks.html.twig
new file mode 100644
index 000000000..07cf9db0d
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Loader/Fixtures/themes/theme2/blocks.html.twig
@@ -0,0 +1,3 @@
+{% use '@default_theme/blocks.html.twig' %}
+
+{% block b2 %}block from theme 2{% endblock %}
diff --git a/vendor/twig/twig/test/Twig/Tests/NativeExtensionTest.php b/vendor/twig/twig/test/Twig/Tests/NativeExtensionTest.php
new file mode 100644
index 000000000..942aff9e3
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/NativeExtensionTest.php
@@ -0,0 +1,33 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_NativeExtensionTest extends PHPUnit_Framework_TestCase
+{
+    public function testGetProperties()
+    {
+        if (defined('HHVM_VERSION')) {
+            $this->markTestSkipped('Skip under HHVM as the behavior is not the same as plain PHP (which is an edge case anyway)');
+        }
+
+        $twig = new Twig_Environment(new Twig_Loader_Array(array('index' => '{{ d1.date }}{{ d2.date }}')), array(
+            'debug' => true,
+            'cache' => false,
+            'autoescape' => false,
+        ));
+
+        $d1 = new DateTime();
+        $d2 = new DateTime();
+        $output = $twig->render('index', compact('d1', 'd2'));
+
+        // If it fails, PHP will crash.
+        $this->assertEquals($output, $d1->date.$d2->date);
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/AutoEscapeTest.php b/vendor/twig/twig/test/Twig/Tests/Node/AutoEscapeTest.php
new file mode 100644
index 000000000..25d16023f
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/AutoEscapeTest.php
@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_AutoEscapeTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $body = new Twig_Node(array(new Twig_Node_Text('foo', 1)));
+        $node = new Twig_Node_AutoEscape(true, $body, 1);
+
+        $this->assertEquals($body, $node->getNode('body'));
+        $this->assertTrue($node->getAttribute('value'));
+    }
+
+    public function getTests()
+    {
+        $body = new Twig_Node(array(new Twig_Node_Text('foo', 1)));
+        $node = new Twig_Node_AutoEscape(true, $body, 1);
+
+        return array(
+            array($node, "// line 1\necho \"foo\";"),
+        );
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/BlockReferenceTest.php b/vendor/twig/twig/test/Twig/Tests/Node/BlockReferenceTest.php
new file mode 100644
index 000000000..84dac9bfa
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/BlockReferenceTest.php
@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_BlockReferenceTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $node = new Twig_Node_BlockReference('foo', 1);
+
+        $this->assertEquals('foo', $node->getAttribute('name'));
+    }
+
+    public function getTests()
+    {
+        return array(
+            array(new Twig_Node_BlockReference('foo', 1), <<<EOF
+// line 1
+\$this->displayBlock('foo', \$context, \$blocks);
+EOF
+            ),
+        );
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/BlockTest.php b/vendor/twig/twig/test/Twig/Tests/Node/BlockTest.php
new file mode 100644
index 000000000..e7246dcc3
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/BlockTest.php
@@ -0,0 +1,39 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_BlockTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $body = new Twig_Node_Text('foo', 1);
+        $node = new Twig_Node_Block('foo', $body, 1);
+
+        $this->assertEquals($body, $node->getNode('body'));
+        $this->assertEquals('foo', $node->getAttribute('name'));
+    }
+
+    public function getTests()
+    {
+        $body = new Twig_Node_Text('foo', 1);
+        $node = new Twig_Node_Block('foo', $body, 1);
+
+        return array(
+            array($node, <<<EOF
+// line 1
+public function block_foo(\$context, array \$blocks = array())
+{
+    echo "foo";
+}
+EOF
+            ),
+        );
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/DoTest.php b/vendor/twig/twig/test/Twig/Tests/Node/DoTest.php
new file mode 100644
index 000000000..aa33d1a2d
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/DoTest.php
@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_DoTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $expr = new Twig_Node_Expression_Constant('foo', 1);
+        $node = new Twig_Node_Do($expr, 1);
+
+        $this->assertEquals($expr, $node->getNode('expr'));
+    }
+
+    public function getTests()
+    {
+        $tests = array();
+
+        $expr = new Twig_Node_Expression_Constant('foo', 1);
+        $node = new Twig_Node_Do($expr, 1);
+        $tests[] = array($node, "// line 1\n\"foo\";");
+
+        return $tests;
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/ArrayTest.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/ArrayTest.php
new file mode 100644
index 000000000..4f83ab176
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/ArrayTest.php
@@ -0,0 +1,37 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_Expression_ArrayTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $elements = array(new Twig_Node_Expression_Constant('foo', 1), $foo = new Twig_Node_Expression_Constant('bar', 1));
+        $node = new Twig_Node_Expression_Array($elements, 1);
+
+        $this->assertEquals($foo, $node->getNode(1));
+    }
+
+    public function getTests()
+    {
+        $elements = array(
+            new Twig_Node_Expression_Constant('foo', 1),
+            new Twig_Node_Expression_Constant('bar', 1),
+
+            new Twig_Node_Expression_Constant('bar', 1),
+            new Twig_Node_Expression_Constant('foo', 1),
+        );
+        $node = new Twig_Node_Expression_Array($elements, 1);
+
+        return array(
+            array($node, 'array("foo" => "bar", "bar" => "foo")'),
+        );
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/AssignNameTest.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/AssignNameTest.php
new file mode 100644
index 000000000..bf365de49
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/AssignNameTest.php
@@ -0,0 +1,29 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_Expression_AssignNameTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $node = new Twig_Node_Expression_AssignName('foo', 1);
+
+        $this->assertEquals('foo', $node->getAttribute('name'));
+    }
+
+    public function getTests()
+    {
+        $node = new Twig_Node_Expression_AssignName('foo', 1);
+
+        return array(
+            array($node, '$context["foo"]'),
+        );
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/AddTest.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/AddTest.php
new file mode 100644
index 000000000..02310a1b0
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/AddTest.php
@@ -0,0 +1,34 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_Expression_Binary_AddTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $left = new Twig_Node_Expression_Constant(1, 1);
+        $right = new Twig_Node_Expression_Constant(2, 1);
+        $node = new Twig_Node_Expression_Binary_Add($left, $right, 1);
+
+        $this->assertEquals($left, $node->getNode('left'));
+        $this->assertEquals($right, $node->getNode('right'));
+    }
+
+    public function getTests()
+    {
+        $left = new Twig_Node_Expression_Constant(1, 1);
+        $right = new Twig_Node_Expression_Constant(2, 1);
+        $node = new Twig_Node_Expression_Binary_Add($left, $right, 1);
+
+        return array(
+            array($node, '(1 + 2)'),
+        );
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/AndTest.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/AndTest.php
new file mode 100644
index 000000000..2df3c8e45
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/AndTest.php
@@ -0,0 +1,34 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_Expression_Binary_AndTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $left = new Twig_Node_Expression_Constant(1, 1);
+        $right = new Twig_Node_Expression_Constant(2, 1);
+        $node = new Twig_Node_Expression_Binary_And($left, $right, 1);
+
+        $this->assertEquals($left, $node->getNode('left'));
+        $this->assertEquals($right, $node->getNode('right'));
+    }
+
+    public function getTests()
+    {
+        $left = new Twig_Node_Expression_Constant(1, 1);
+        $right = new Twig_Node_Expression_Constant(2, 1);
+        $node = new Twig_Node_Expression_Binary_And($left, $right, 1);
+
+        return array(
+            array($node, '(1 && 2)'),
+        );
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/ConcatTest.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/ConcatTest.php
new file mode 100644
index 000000000..759e48289
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/ConcatTest.php
@@ -0,0 +1,34 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_Expression_Binary_ConcatTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $left = new Twig_Node_Expression_Constant(1, 1);
+        $right = new Twig_Node_Expression_Constant(2, 1);
+        $node = new Twig_Node_Expression_Binary_Concat($left, $right, 1);
+
+        $this->assertEquals($left, $node->getNode('left'));
+        $this->assertEquals($right, $node->getNode('right'));
+    }
+
+    public function getTests()
+    {
+        $left = new Twig_Node_Expression_Constant(1, 1);
+        $right = new Twig_Node_Expression_Constant(2, 1);
+        $node = new Twig_Node_Expression_Binary_Concat($left, $right, 1);
+
+        return array(
+            array($node, '(1 . 2)'),
+        );
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/DivTest.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/DivTest.php
new file mode 100644
index 000000000..0e54b10a3
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/DivTest.php
@@ -0,0 +1,34 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_Expression_Binary_DivTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $left = new Twig_Node_Expression_Constant(1, 1);
+        $right = new Twig_Node_Expression_Constant(2, 1);
+        $node = new Twig_Node_Expression_Binary_Div($left, $right, 1);
+
+        $this->assertEquals($left, $node->getNode('left'));
+        $this->assertEquals($right, $node->getNode('right'));
+    }
+
+    public function getTests()
+    {
+        $left = new Twig_Node_Expression_Constant(1, 1);
+        $right = new Twig_Node_Expression_Constant(2, 1);
+        $node = new Twig_Node_Expression_Binary_Div($left, $right, 1);
+
+        return array(
+            array($node, '(1 / 2)'),
+        );
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/FloorDivTest.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/FloorDivTest.php
new file mode 100644
index 000000000..602888fd5
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/FloorDivTest.php
@@ -0,0 +1,34 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_Expression_Binary_FloorDivTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $left = new Twig_Node_Expression_Constant(1, 1);
+        $right = new Twig_Node_Expression_Constant(2, 1);
+        $node = new Twig_Node_Expression_Binary_FloorDiv($left, $right, 1);
+
+        $this->assertEquals($left, $node->getNode('left'));
+        $this->assertEquals($right, $node->getNode('right'));
+    }
+
+    public function getTests()
+    {
+        $left = new Twig_Node_Expression_Constant(1, 1);
+        $right = new Twig_Node_Expression_Constant(2, 1);
+        $node = new Twig_Node_Expression_Binary_FloorDiv($left, $right, 1);
+
+        return array(
+            array($node, 'intval(floor((1 / 2)))'),
+        );
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/ModTest.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/ModTest.php
new file mode 100644
index 000000000..4c663c787
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/ModTest.php
@@ -0,0 +1,34 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_Expression_Binary_ModTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $left = new Twig_Node_Expression_Constant(1, 1);
+        $right = new Twig_Node_Expression_Constant(2, 1);
+        $node = new Twig_Node_Expression_Binary_Mod($left, $right, 1);
+
+        $this->assertEquals($left, $node->getNode('left'));
+        $this->assertEquals($right, $node->getNode('right'));
+    }
+
+    public function getTests()
+    {
+        $left = new Twig_Node_Expression_Constant(1, 1);
+        $right = new Twig_Node_Expression_Constant(2, 1);
+        $node = new Twig_Node_Expression_Binary_Mod($left, $right, 1);
+
+        return array(
+            array($node, '(1 % 2)'),
+        );
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/MulTest.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/MulTest.php
new file mode 100644
index 000000000..e92c95e64
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/MulTest.php
@@ -0,0 +1,34 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_Expression_Binary_MulTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $left = new Twig_Node_Expression_Constant(1, 1);
+        $right = new Twig_Node_Expression_Constant(2, 1);
+        $node = new Twig_Node_Expression_Binary_Mul($left, $right, 1);
+
+        $this->assertEquals($left, $node->getNode('left'));
+        $this->assertEquals($right, $node->getNode('right'));
+    }
+
+    public function getTests()
+    {
+        $left = new Twig_Node_Expression_Constant(1, 1);
+        $right = new Twig_Node_Expression_Constant(2, 1);
+        $node = new Twig_Node_Expression_Binary_Mul($left, $right, 1);
+
+        return array(
+            array($node, '(1 * 2)'),
+        );
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/OrTest.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/OrTest.php
new file mode 100644
index 000000000..ec37c83eb
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/OrTest.php
@@ -0,0 +1,34 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_Expression_Binary_OrTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $left = new Twig_Node_Expression_Constant(1, 1);
+        $right = new Twig_Node_Expression_Constant(2, 1);
+        $node = new Twig_Node_Expression_Binary_Or($left, $right, 1);
+
+        $this->assertEquals($left, $node->getNode('left'));
+        $this->assertEquals($right, $node->getNode('right'));
+    }
+
+    public function getTests()
+    {
+        $left = new Twig_Node_Expression_Constant(1, 1);
+        $right = new Twig_Node_Expression_Constant(2, 1);
+        $node = new Twig_Node_Expression_Binary_Or($left, $right, 1);
+
+        return array(
+            array($node, '(1 || 2)'),
+        );
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/SubTest.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/SubTest.php
new file mode 100644
index 000000000..061cb270f
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Binary/SubTest.php
@@ -0,0 +1,34 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_Expression_Binary_SubTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $left = new Twig_Node_Expression_Constant(1, 1);
+        $right = new Twig_Node_Expression_Constant(2, 1);
+        $node = new Twig_Node_Expression_Binary_Sub($left, $right, 1);
+
+        $this->assertEquals($left, $node->getNode('left'));
+        $this->assertEquals($right, $node->getNode('right'));
+    }
+
+    public function getTests()
+    {
+        $left = new Twig_Node_Expression_Constant(1, 1);
+        $right = new Twig_Node_Expression_Constant(2, 1);
+        $node = new Twig_Node_Expression_Binary_Sub($left, $right, 1);
+
+        return array(
+            array($node, '(1 - 2)'),
+        );
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/CallTest.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/CallTest.php
new file mode 100644
index 000000000..43afcd292
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/CallTest.php
@@ -0,0 +1,116 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_Expression_CallTest extends PHPUnit_Framework_TestCase
+{
+    public function testGetArguments()
+    {
+        $node = new Twig_Tests_Node_Expression_Call(array(), array('type' => 'function', 'name' => 'date'));
+        $this->assertEquals(array('U', null), $node->getArguments('date', array('format' => 'U', 'timestamp' => null)));
+    }
+
+    /**
+     * @expectedException        Twig_Error_Syntax
+     * @expectedExceptionMessage Positional arguments cannot be used after named arguments for function "date".
+     */
+    public function testGetArgumentsWhenPositionalArgumentsAfterNamedArguments()
+    {
+        $node = new Twig_Tests_Node_Expression_Call(array(), array('type' => 'function', 'name' => 'date'));
+        $node->getArguments('date', array('timestamp' => 123456, 'Y-m-d'));
+    }
+
+    /**
+     * @expectedException        Twig_Error_Syntax
+     * @expectedExceptionMessage Argument "format" is defined twice for function "date".
+     */
+    public function testGetArgumentsWhenArgumentIsDefinedTwice()
+    {
+        $node = new Twig_Tests_Node_Expression_Call(array(), array('type' => 'function', 'name' => 'date'));
+        $node->getArguments('date', array('Y-m-d', 'format' => 'U'));
+    }
+
+    /**
+     * @expectedException        Twig_Error_Syntax
+     * @expectedExceptionMessage Unknown argument "unknown" for function "date(format, timestamp)".
+     */
+    public function testGetArgumentsWithWrongNamedArgumentName()
+    {
+        $node = new Twig_Tests_Node_Expression_Call(array(), array('type' => 'function', 'name' => 'date'));
+        $node->getArguments('date', array('Y-m-d', 'timestamp' => null, 'unknown' => ''));
+    }
+
+    /**
+     * @expectedException        Twig_Error_Syntax
+     * @expectedExceptionMessage Unknown arguments "unknown1", "unknown2" for function "date(format, timestamp)".
+     */
+    public function testGetArgumentsWithWrongNamedArgumentNames()
+    {
+        $node = new Twig_Tests_Node_Expression_Call(array(), array('type' => 'function', 'name' => 'date'));
+        $node->getArguments('date', array('Y-m-d', 'timestamp' => null, 'unknown1' => '', 'unknown2' => ''));
+    }
+
+    /**
+     * @expectedException        Twig_Error_Syntax
+     * @expectedExceptionMessage Argument "case_sensitivity" could not be assigned for function "substr_compare(main_str, str, offset, length, case_sensitivity)" because it is mapped to an internal PHP function which cannot determine default value for optional argument "length".
+     */
+    public function testResolveArgumentsWithMissingValueForOptionalArgument()
+    {
+        if (defined('HHVM_VERSION')) {
+            $this->markTestSkipped('Skip under HHVM as the behavior is not the same as plain PHP (which is an edge case anyway)');
+        }
+
+        $node = new Twig_Tests_Node_Expression_Call(array(), array('type' => 'function', 'name' => 'substr_compare'));
+        $node->getArguments('substr_compare', array('abcd', 'bc', 'offset' => 1, 'case_sensitivity' => true));
+    }
+
+    public function testResolveArgumentsOnlyNecessaryArgumentsForCustomFunction()
+    {
+        $node = new Twig_Tests_Node_Expression_Call(array(), array('type' => 'function', 'name' => 'custom_function'));
+
+        $this->assertEquals(array('arg1'), $node->getArguments(array($this, 'customFunction'), array('arg1' => 'arg1')));
+    }
+
+    public function testGetArgumentsForStaticMethod()
+    {
+        $node = new Twig_Tests_Node_Expression_Call(array(), array('type' => 'function', 'name' => 'custom_static_function'));
+        $this->assertEquals(array('arg1'), $node->getArguments(__CLASS__.'::customStaticFunction', array('arg1' => 'arg1')));
+    }
+
+    /**
+     * @expectedException        LogicException
+     * @expectedExceptionMessage The last parameter of "Twig_Tests_Node_Expression_CallTest::customFunctionWithArbitraryArguments" for function "foo" must be an array with default value, eg. "array $arg = array()".
+     */
+    public function testResolveArgumentsWithMissingParameterForArbitraryArguments()
+    {
+        $node = new Twig_Tests_Node_Expression_Call(array(), array('type' => 'function', 'name' => 'foo', 'is_variadic' => true));
+        $node->getArguments(array($this, 'customFunctionWithArbitraryArguments'), array());
+    }
+
+    public static function customStaticFunction($arg1, $arg2 = 'default', $arg3 = array())
+    {
+    }
+
+    public function customFunction($arg1, $arg2 = 'default', $arg3 = array())
+    {
+    }
+
+    public function customFunctionWithArbitraryArguments()
+    {
+    }
+}
+
+class Twig_Tests_Node_Expression_Call extends Twig_Node_Expression_Call
+{
+    public function getArguments($callable, $arguments)
+    {
+        return parent::getArguments($callable, $arguments);
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/ConditionalTest.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/ConditionalTest.php
new file mode 100644
index 000000000..a3e8badff
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/ConditionalTest.php
@@ -0,0 +1,38 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_Expression_ConditionalTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $expr1 = new Twig_Node_Expression_Constant(1, 1);
+        $expr2 = new Twig_Node_Expression_Constant(2, 1);
+        $expr3 = new Twig_Node_Expression_Constant(3, 1);
+        $node = new Twig_Node_Expression_Conditional($expr1, $expr2, $expr3, 1);
+
+        $this->assertEquals($expr1, $node->getNode('expr1'));
+        $this->assertEquals($expr2, $node->getNode('expr2'));
+        $this->assertEquals($expr3, $node->getNode('expr3'));
+    }
+
+    public function getTests()
+    {
+        $tests = array();
+
+        $expr1 = new Twig_Node_Expression_Constant(1, 1);
+        $expr2 = new Twig_Node_Expression_Constant(2, 1);
+        $expr3 = new Twig_Node_Expression_Constant(3, 1);
+        $node = new Twig_Node_Expression_Conditional($expr1, $expr2, $expr3, 1);
+        $tests[] = array($node, '((1) ? (2) : (3))');
+
+        return $tests;
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/ConstantTest.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/ConstantTest.php
new file mode 100644
index 000000000..2ff931822
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/ConstantTest.php
@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_Expression_ConstantTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $node = new Twig_Node_Expression_Constant('foo', 1);
+
+        $this->assertEquals('foo', $node->getAttribute('value'));
+    }
+
+    public function getTests()
+    {
+        $tests = array();
+
+        $node = new Twig_Node_Expression_Constant('foo', 1);
+        $tests[] = array($node, '"foo"');
+
+        return $tests;
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/FilterTest.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/FilterTest.php
new file mode 100644
index 000000000..d5ffb244d
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/FilterTest.php
@@ -0,0 +1,154 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_Expression_FilterTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $expr = new Twig_Node_Expression_Constant('foo', 1);
+        $name = new Twig_Node_Expression_Constant('upper', 1);
+        $args = new Twig_Node();
+        $node = new Twig_Node_Expression_Filter($expr, $name, $args, 1);
+
+        $this->assertEquals($expr, $node->getNode('node'));
+        $this->assertEquals($name, $node->getNode('filter'));
+        $this->assertEquals($args, $node->getNode('arguments'));
+    }
+
+    public function getTests()
+    {
+        $environment = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+        $environment->addFilter(new Twig_SimpleFilter('bar', 'bar', array('needs_environment' => true)));
+        $environment->addFilter(new Twig_SimpleFilter('barbar', 'twig_tests_filter_barbar', array('needs_context' => true, 'is_variadic' => true)));
+
+        $tests = array();
+
+        $expr = new Twig_Node_Expression_Constant('foo', 1);
+        $node = $this->createFilter($expr, 'upper');
+        $node = $this->createFilter($node, 'number_format', array(new Twig_Node_Expression_Constant(2, 1), new Twig_Node_Expression_Constant('.', 1), new Twig_Node_Expression_Constant(',', 1)));
+
+        if (function_exists('mb_get_info')) {
+            $tests[] = array($node, 'twig_number_format_filter($this->env, twig_upper_filter($this->env, "foo"), 2, ".", ",")');
+        } else {
+            $tests[] = array($node, 'twig_number_format_filter($this->env, strtoupper("foo"), 2, ".", ",")');
+        }
+
+        // named arguments
+        $date = new Twig_Node_Expression_Constant(0, 1);
+        $node = $this->createFilter($date, 'date', array(
+            'timezone' => new Twig_Node_Expression_Constant('America/Chicago', 1),
+            'format' => new Twig_Node_Expression_Constant('d/m/Y H:i:s P', 1),
+        ));
+        $tests[] = array($node, 'twig_date_format_filter($this->env, 0, "d/m/Y H:i:s P", "America/Chicago")');
+
+        // skip an optional argument
+        $date = new Twig_Node_Expression_Constant(0, 1);
+        $node = $this->createFilter($date, 'date', array(
+            'timezone' => new Twig_Node_Expression_Constant('America/Chicago', 1),
+        ));
+        $tests[] = array($node, 'twig_date_format_filter($this->env, 0, null, "America/Chicago")');
+
+        // underscores vs camelCase for named arguments
+        $string = new Twig_Node_Expression_Constant('abc', 1);
+        $node = $this->createFilter($string, 'reverse', array(
+            'preserve_keys' => new Twig_Node_Expression_Constant(true, 1),
+        ));
+        $tests[] = array($node, 'twig_reverse_filter($this->env, "abc", true)');
+        $node = $this->createFilter($string, 'reverse', array(
+            'preserveKeys' => new Twig_Node_Expression_Constant(true, 1),
+        ));
+        $tests[] = array($node, 'twig_reverse_filter($this->env, "abc", true)');
+
+        // filter as an anonymous function
+        if (PHP_VERSION_ID >= 50300) {
+            $node = $this->createFilter(new Twig_Node_Expression_Constant('foo', 1), 'anonymous');
+            $tests[] = array($node, 'call_user_func_array($this->env->getFilter(\'anonymous\')->getCallable(), array("foo"))');
+        }
+
+        // needs environment
+        $node = $this->createFilter($string, 'bar');
+        $tests[] = array($node, 'bar($this->env, "abc")', $environment);
+
+        $node = $this->createFilter($string, 'bar', array(new Twig_Node_Expression_Constant('bar', 1)));
+        $tests[] = array($node, 'bar($this->env, "abc", "bar")', $environment);
+
+        // arbitrary named arguments
+        $node = $this->createFilter($string, 'barbar');
+        $tests[] = array($node, 'twig_tests_filter_barbar($context, "abc")', $environment);
+
+        $node = $this->createFilter($string, 'barbar', array('foo' => new Twig_Node_Expression_Constant('bar', 1)));
+        $tests[] = array($node, 'twig_tests_filter_barbar($context, "abc", null, null, array("foo" => "bar"))', $environment);
+
+        $node = $this->createFilter($string, 'barbar', array('arg2' => new Twig_Node_Expression_Constant('bar', 1)));
+        $tests[] = array($node, 'twig_tests_filter_barbar($context, "abc", null, "bar")', $environment);
+
+        $node = $this->createFilter($string, 'barbar', array(
+            new Twig_Node_Expression_Constant('1', 1),
+            new Twig_Node_Expression_Constant('2', 1),
+            new Twig_Node_Expression_Constant('3', 1),
+            'foo' => new Twig_Node_Expression_Constant('bar', 1),
+        ));
+        $tests[] = array($node, 'twig_tests_filter_barbar($context, "abc", "1", "2", array(0 => "3", "foo" => "bar"))', $environment);
+
+        return $tests;
+    }
+
+    /**
+     * @expectedException        Twig_Error_Syntax
+     * @expectedExceptionMessage Unknown argument "foobar" for filter "date(format, timezone)" at line 1.
+     */
+    public function testCompileWithWrongNamedArgumentName()
+    {
+        $date = new Twig_Node_Expression_Constant(0, 1);
+        $node = $this->createFilter($date, 'date', array(
+            'foobar' => new Twig_Node_Expression_Constant('America/Chicago', 1),
+        ));
+
+        $compiler = $this->getCompiler();
+        $compiler->compile($node);
+    }
+
+    /**
+     * @expectedException        Twig_Error_Syntax
+     * @expectedExceptionMessage Value for argument "from" is required for filter "replace".
+     */
+    public function testCompileWithMissingNamedArgument()
+    {
+        $value = new Twig_Node_Expression_Constant(0, 1);
+        $node = $this->createFilter($value, 'replace', array(
+            'to' => new Twig_Node_Expression_Constant('foo', 1),
+        ));
+
+        $compiler = $this->getCompiler();
+        $compiler->compile($node);
+    }
+
+    protected function createFilter($node, $name, array $arguments = array())
+    {
+        $name = new Twig_Node_Expression_Constant($name, 1);
+        $arguments = new Twig_Node($arguments);
+
+        return new Twig_Node_Expression_Filter($node, $name, $arguments, 1);
+    }
+
+    protected function getEnvironment()
+    {
+        if (PHP_VERSION_ID >= 50300) {
+            return include 'PHP53/FilterInclude.php';
+        }
+
+        return parent::getEnvironment();
+    }
+}
+
+function twig_tests_filter_barbar($context, $string, $arg1 = null, $arg2 = null, array $args = array())
+{
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/FunctionTest.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/FunctionTest.php
new file mode 100644
index 000000000..de2e0f8ee
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/FunctionTest.php
@@ -0,0 +1,110 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_Expression_FunctionTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $name = 'function';
+        $args = new Twig_Node();
+        $node = new Twig_Node_Expression_Function($name, $args, 1);
+
+        $this->assertEquals($name, $node->getAttribute('name'));
+        $this->assertEquals($args, $node->getNode('arguments'));
+    }
+
+    public function getTests()
+    {
+        $environment = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+        $environment->addFunction(new Twig_SimpleFunction('foo', 'foo', array()));
+        $environment->addFunction(new Twig_SimpleFunction('bar', 'bar', array('needs_environment' => true)));
+        $environment->addFunction(new Twig_SimpleFunction('foofoo', 'foofoo', array('needs_context' => true)));
+        $environment->addFunction(new Twig_SimpleFunction('foobar', 'foobar', array('needs_environment' => true, 'needs_context' => true)));
+        $environment->addFunction(new Twig_SimpleFunction('barbar', 'twig_tests_function_barbar', array('is_variadic' => true)));
+
+        $tests = array();
+
+        $node = $this->createFunction('foo');
+        $tests[] = array($node, 'foo()', $environment);
+
+        $node = $this->createFunction('foo', array(new Twig_Node_Expression_Constant('bar', 1), new Twig_Node_Expression_Constant('foobar', 1)));
+        $tests[] = array($node, 'foo("bar", "foobar")', $environment);
+
+        $node = $this->createFunction('bar');
+        $tests[] = array($node, 'bar($this->env)', $environment);
+
+        $node = $this->createFunction('bar', array(new Twig_Node_Expression_Constant('bar', 1)));
+        $tests[] = array($node, 'bar($this->env, "bar")', $environment);
+
+        $node = $this->createFunction('foofoo');
+        $tests[] = array($node, 'foofoo($context)', $environment);
+
+        $node = $this->createFunction('foofoo', array(new Twig_Node_Expression_Constant('bar', 1)));
+        $tests[] = array($node, 'foofoo($context, "bar")', $environment);
+
+        $node = $this->createFunction('foobar');
+        $tests[] = array($node, 'foobar($this->env, $context)', $environment);
+
+        $node = $this->createFunction('foobar', array(new Twig_Node_Expression_Constant('bar', 1)));
+        $tests[] = array($node, 'foobar($this->env, $context, "bar")', $environment);
+
+        // named arguments
+        $node = $this->createFunction('date', array(
+            'timezone' => new Twig_Node_Expression_Constant('America/Chicago', 1),
+            'date' => new Twig_Node_Expression_Constant(0, 1),
+        ));
+        $tests[] = array($node, 'twig_date_converter($this->env, 0, "America/Chicago")');
+
+        // arbitrary named arguments
+        $node = $this->createFunction('barbar');
+        $tests[] = array($node, 'twig_tests_function_barbar()', $environment);
+
+        $node = $this->createFunction('barbar', array('foo' => new Twig_Node_Expression_Constant('bar', 1)));
+        $tests[] = array($node, 'twig_tests_function_barbar(null, null, array("foo" => "bar"))', $environment);
+
+        $node = $this->createFunction('barbar', array('arg2' => new Twig_Node_Expression_Constant('bar', 1)));
+        $tests[] = array($node, 'twig_tests_function_barbar(null, "bar")', $environment);
+
+        $node = $this->createFunction('barbar', array(
+            new Twig_Node_Expression_Constant('1', 1),
+            new Twig_Node_Expression_Constant('2', 1),
+            new Twig_Node_Expression_Constant('3', 1),
+            'foo' => new Twig_Node_Expression_Constant('bar', 1),
+        ));
+        $tests[] = array($node, 'twig_tests_function_barbar("1", "2", array(0 => "3", "foo" => "bar"))', $environment);
+
+        // function as an anonymous function
+        if (PHP_VERSION_ID >= 50300) {
+            $node = $this->createFunction('anonymous', array(new Twig_Node_Expression_Constant('foo', 1)));
+            $tests[] = array($node, 'call_user_func_array($this->env->getFunction(\'anonymous\')->getCallable(), array("foo"))');
+        }
+
+        return $tests;
+    }
+
+    protected function createFunction($name, array $arguments = array())
+    {
+        return new Twig_Node_Expression_Function($name, new Twig_Node($arguments), 1);
+    }
+
+    protected function getEnvironment()
+    {
+        if (PHP_VERSION_ID >= 50300) {
+            return include 'PHP53/FunctionInclude.php';
+        }
+
+        return parent::getEnvironment();
+    }
+}
+
+function twig_tests_function_barbar($arg1 = null, $arg2 = null, array $args = array())
+{
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/GetAttrTest.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/GetAttrTest.php
new file mode 100644
index 000000000..2764478c4
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/GetAttrTest.php
@@ -0,0 +1,50 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_Expression_GetAttrTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $expr = new Twig_Node_Expression_Name('foo', 1);
+        $attr = new Twig_Node_Expression_Constant('bar', 1);
+        $args = new Twig_Node_Expression_Array(array(), 1);
+        $args->addElement(new Twig_Node_Expression_Name('foo', 1));
+        $args->addElement(new Twig_Node_Expression_Constant('bar', 1));
+        $node = new Twig_Node_Expression_GetAttr($expr, $attr, $args, Twig_Template::ARRAY_CALL, 1);
+
+        $this->assertEquals($expr, $node->getNode('node'));
+        $this->assertEquals($attr, $node->getNode('attribute'));
+        $this->assertEquals($args, $node->getNode('arguments'));
+        $this->assertEquals(Twig_Template::ARRAY_CALL, $node->getAttribute('type'));
+    }
+
+    public function getTests()
+    {
+        $tests = array();
+
+        $expr = new Twig_Node_Expression_Name('foo', 1);
+        $attr = new Twig_Node_Expression_Constant('bar', 1);
+        $args = new Twig_Node_Expression_Array(array(), 1);
+        $node = new Twig_Node_Expression_GetAttr($expr, $attr, $args, Twig_Template::ANY_CALL, 1);
+        $tests[] = array($node, sprintf('%s%s, "bar", array())', $this->getAttributeGetter(), $this->getVariableGetter('foo', 1)));
+
+        $node = new Twig_Node_Expression_GetAttr($expr, $attr, $args, Twig_Template::ARRAY_CALL, 1);
+        $tests[] = array($node, sprintf('%s%s, "bar", array(), "array")', $this->getAttributeGetter(), $this->getVariableGetter('foo', 1)));
+
+        $args = new Twig_Node_Expression_Array(array(), 1);
+        $args->addElement(new Twig_Node_Expression_Name('foo', 1));
+        $args->addElement(new Twig_Node_Expression_Constant('bar', 1));
+        $node = new Twig_Node_Expression_GetAttr($expr, $attr, $args, Twig_Template::METHOD_CALL, 1);
+        $tests[] = array($node, sprintf('%s%s, "bar", array(0 => %s, 1 => "bar"), "method")', $this->getAttributeGetter(), $this->getVariableGetter('foo', 1), $this->getVariableGetter('foo')));
+
+        return $tests;
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/NameTest.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/NameTest.php
new file mode 100644
index 000000000..8cbb2f764
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/NameTest.php
@@ -0,0 +1,35 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_Expression_NameTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $node = new Twig_Node_Expression_Name('foo', 1);
+
+        $this->assertEquals('foo', $node->getAttribute('name'));
+    }
+
+    public function getTests()
+    {
+        $node = new Twig_Node_Expression_Name('foo', 1);
+        $context = new Twig_Node_Expression_Name('_context', 1);
+
+        $env = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('strict_variables' => true));
+        $env1 = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('strict_variables' => false));
+
+        return array(
+            array($node, "// line 1\n".(PHP_VERSION_ID >= 50400 ? '(isset($context["foo"]) ? $context["foo"] : $this->getContext($context, "foo"))' : '$this->getContext($context, "foo")'), $env),
+            array($node, $this->getVariableGetter('foo', 1), $env1),
+            array($context, "// line 1\n\$context"),
+        );
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/PHP53/FilterInclude.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/PHP53/FilterInclude.php
new file mode 100644
index 000000000..b5394bcf4
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/PHP53/FilterInclude.php
@@ -0,0 +1,6 @@
+<?php
+
+$env = new Twig_Environment(new Twig_Loader_Array(array()));
+$env->addFilter(new Twig_SimpleFilter('anonymous', function () {}));
+
+return $env;
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/PHP53/FunctionInclude.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/PHP53/FunctionInclude.php
new file mode 100644
index 000000000..e8f68c728
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/PHP53/FunctionInclude.php
@@ -0,0 +1,6 @@
+<?php
+
+$env = new Twig_Environment(new Twig_Loader_Array(array()));
+$env->addFunction(new Twig_SimpleFunction('anonymous', function () {}));
+
+return $env;
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/PHP53/TestInclude.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/PHP53/TestInclude.php
new file mode 100644
index 000000000..9f818bc41
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/PHP53/TestInclude.php
@@ -0,0 +1,6 @@
+<?php
+
+$env = new Twig_Environment(new Twig_Loader_Array(array()));
+$env->addTest(new Twig_SimpleTest('anonymous', function () {}));
+
+return $env;
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/ParentTest.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/ParentTest.php
new file mode 100644
index 000000000..ab2bbe074
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/ParentTest.php
@@ -0,0 +1,28 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_Expression_ParentTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $node = new Twig_Node_Expression_Parent('foo', 1);
+
+        $this->assertEquals('foo', $node->getAttribute('name'));
+    }
+
+    public function getTests()
+    {
+        $tests = array();
+        $tests[] = array(new Twig_Node_Expression_Parent('foo', 1), '$this->renderParentBlock("foo", $context, $blocks)');
+
+        return $tests;
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/TestTest.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/TestTest.php
new file mode 100644
index 000000000..55d3fcbf6
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/TestTest.php
@@ -0,0 +1,82 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_Expression_TestTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $expr = new Twig_Node_Expression_Constant('foo', 1);
+        $name = new Twig_Node_Expression_Constant('null', 1);
+        $args = new Twig_Node();
+        $node = new Twig_Node_Expression_Test($expr, $name, $args, 1);
+
+        $this->assertEquals($expr, $node->getNode('node'));
+        $this->assertEquals($args, $node->getNode('arguments'));
+        $this->assertEquals($name, $node->getAttribute('name'));
+    }
+
+    public function getTests()
+    {
+        $environment = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+        $environment->addTest(new Twig_SimpleTest('barbar', 'twig_tests_test_barbar', array('is_variadic' => true, 'need_context' => true)));
+
+        $tests = array();
+
+        $expr = new Twig_Node_Expression_Constant('foo', 1);
+        $node = new Twig_Node_Expression_Test_Null($expr, 'null', new Twig_Node(array()), 1);
+        $tests[] = array($node, '(null === "foo")');
+
+        // test as an anonymous function
+        if (PHP_VERSION_ID >= 50300) {
+            $node = $this->createTest(new Twig_Node_Expression_Constant('foo', 1), 'anonymous', array(new Twig_Node_Expression_Constant('foo', 1)));
+            $tests[] = array($node, 'call_user_func_array($this->env->getTest(\'anonymous\')->getCallable(), array("foo", "foo"))');
+        }
+
+        // arbitrary named arguments
+        $string = new Twig_Node_Expression_Constant('abc', 1);
+        $node = $this->createTest($string, 'barbar');
+        $tests[] = array($node, 'twig_tests_test_barbar("abc")', $environment);
+
+        $node = $this->createTest($string, 'barbar', array('foo' => new Twig_Node_Expression_Constant('bar', 1)));
+        $tests[] = array($node, 'twig_tests_test_barbar("abc", null, null, array("foo" => "bar"))', $environment);
+
+        $node = $this->createTest($string, 'barbar', array('arg2' => new Twig_Node_Expression_Constant('bar', 1)));
+        $tests[] = array($node, 'twig_tests_test_barbar("abc", null, "bar")', $environment);
+
+        $node = $this->createTest($string, 'barbar', array(
+            new Twig_Node_Expression_Constant('1', 1),
+            new Twig_Node_Expression_Constant('2', 1),
+            new Twig_Node_Expression_Constant('3', 1),
+            'foo' => new Twig_Node_Expression_Constant('bar', 1),
+        ));
+        $tests[] = array($node, 'twig_tests_test_barbar("abc", "1", "2", array(0 => "3", "foo" => "bar"))', $environment);
+
+        return $tests;
+    }
+
+    protected function createTest($node, $name, array $arguments = array())
+    {
+        return new Twig_Node_Expression_Test($node, $name, new Twig_Node($arguments), 1);
+    }
+
+    protected function getEnvironment()
+    {
+        if (PHP_VERSION_ID >= 50300) {
+            return include 'PHP53/TestInclude.php';
+        }
+
+        return parent::getEnvironment();
+    }
+}
+
+function twig_tests_test_barbar($string, $arg1 = null, $arg2 = null, array $args = array())
+{
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/Unary/NegTest.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Unary/NegTest.php
new file mode 100644
index 000000000..b63337117
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Unary/NegTest.php
@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_Expression_Unary_NegTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $expr = new Twig_Node_Expression_Constant(1, 1);
+        $node = new Twig_Node_Expression_Unary_Neg($expr, 1);
+
+        $this->assertEquals($expr, $node->getNode('node'));
+    }
+
+    public function getTests()
+    {
+        $node = new Twig_Node_Expression_Constant(1, 1);
+        $node = new Twig_Node_Expression_Unary_Neg($node, 1);
+
+        return array(
+            array($node, '-1'),
+            array(new Twig_Node_Expression_Unary_Neg($node, 1), '- -1'),
+        );
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/Unary/NotTest.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Unary/NotTest.php
new file mode 100644
index 000000000..d7c6f85e7
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Unary/NotTest.php
@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_Expression_Unary_NotTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $expr = new Twig_Node_Expression_Constant(1, 1);
+        $node = new Twig_Node_Expression_Unary_Not($expr, 1);
+
+        $this->assertEquals($expr, $node->getNode('node'));
+    }
+
+    public function getTests()
+    {
+        $node = new Twig_Node_Expression_Constant(1, 1);
+        $node = new Twig_Node_Expression_Unary_Not($node, 1);
+
+        return array(
+            array($node, '!1'),
+        );
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/Expression/Unary/PosTest.php b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Unary/PosTest.php
new file mode 100644
index 000000000..057250f37
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/Expression/Unary/PosTest.php
@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_Expression_Unary_PosTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $expr = new Twig_Node_Expression_Constant(1, 1);
+        $node = new Twig_Node_Expression_Unary_Pos($expr, 1);
+
+        $this->assertEquals($expr, $node->getNode('node'));
+    }
+
+    public function getTests()
+    {
+        $node = new Twig_Node_Expression_Constant(1, 1);
+        $node = new Twig_Node_Expression_Unary_Pos($node, 1);
+
+        return array(
+            array($node, '+1'),
+        );
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/ForTest.php b/vendor/twig/twig/test/Twig/Tests/Node/ForTest.php
new file mode 100644
index 000000000..b2c6fa42f
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/ForTest.php
@@ -0,0 +1,191 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_ForTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $keyTarget = new Twig_Node_Expression_AssignName('key', 1);
+        $valueTarget = new Twig_Node_Expression_AssignName('item', 1);
+        $seq = new Twig_Node_Expression_Name('items', 1);
+        $ifexpr = new Twig_Node_Expression_Constant(true, 1);
+        $body = new Twig_Node(array(new Twig_Node_Print(new Twig_Node_Expression_Name('foo', 1), 1)), array(), 1);
+        $else = null;
+        $node = new Twig_Node_For($keyTarget, $valueTarget, $seq, $ifexpr, $body, $else, 1);
+        $node->setAttribute('with_loop', false);
+
+        $this->assertEquals($keyTarget, $node->getNode('key_target'));
+        $this->assertEquals($valueTarget, $node->getNode('value_target'));
+        $this->assertEquals($seq, $node->getNode('seq'));
+        $this->assertTrue($node->getAttribute('ifexpr'));
+        $this->assertEquals('Twig_Node_If', get_class($node->getNode('body')));
+        $this->assertEquals($body, $node->getNode('body')->getNode('tests')->getNode(1)->getNode(0));
+        $this->assertNull($node->getNode('else'));
+
+        $else = new Twig_Node_Print(new Twig_Node_Expression_Name('foo', 1), 1);
+        $node = new Twig_Node_For($keyTarget, $valueTarget, $seq, $ifexpr, $body, $else, 1);
+        $node->setAttribute('with_loop', false);
+        $this->assertEquals($else, $node->getNode('else'));
+    }
+
+    public function getTests()
+    {
+        $tests = array();
+
+        $keyTarget = new Twig_Node_Expression_AssignName('key', 1);
+        $valueTarget = new Twig_Node_Expression_AssignName('item', 1);
+        $seq = new Twig_Node_Expression_Name('items', 1);
+        $ifexpr = null;
+        $body = new Twig_Node(array(new Twig_Node_Print(new Twig_Node_Expression_Name('foo', 1), 1)), array(), 1);
+        $else = null;
+        $node = new Twig_Node_For($keyTarget, $valueTarget, $seq, $ifexpr, $body, $else, 1);
+        $node->setAttribute('with_loop', false);
+
+        $tests[] = array($node, <<<EOF
+// line 1
+\$context['_parent'] = \$context;
+\$context['_seq'] = twig_ensure_traversable({$this->getVariableGetter('items')});
+foreach (\$context['_seq'] as \$context["key"] => \$context["item"]) {
+    echo {$this->getVariableGetter('foo')};
+}
+\$_parent = \$context['_parent'];
+unset(\$context['_seq'], \$context['_iterated'], \$context['key'], \$context['item'], \$context['_parent'], \$context['loop']);
+\$context = array_intersect_key(\$context, \$_parent) + \$_parent;
+EOF
+        );
+
+        $keyTarget = new Twig_Node_Expression_AssignName('k', 1);
+        $valueTarget = new Twig_Node_Expression_AssignName('v', 1);
+        $seq = new Twig_Node_Expression_Name('values', 1);
+        $ifexpr = null;
+        $body = new Twig_Node(array(new Twig_Node_Print(new Twig_Node_Expression_Name('foo', 1), 1)), array(), 1);
+        $else = null;
+        $node = new Twig_Node_For($keyTarget, $valueTarget, $seq, $ifexpr, $body, $else, 1);
+        $node->setAttribute('with_loop', true);
+
+        $tests[] = array($node, <<<EOF
+// line 1
+\$context['_parent'] = \$context;
+\$context['_seq'] = twig_ensure_traversable({$this->getVariableGetter('values')});
+\$context['loop'] = array(
+  'parent' => \$context['_parent'],
+  'index0' => 0,
+  'index'  => 1,
+  'first'  => true,
+);
+if (is_array(\$context['_seq']) || (is_object(\$context['_seq']) && \$context['_seq'] instanceof Countable)) {
+    \$length = count(\$context['_seq']);
+    \$context['loop']['revindex0'] = \$length - 1;
+    \$context['loop']['revindex'] = \$length;
+    \$context['loop']['length'] = \$length;
+    \$context['loop']['last'] = 1 === \$length;
+}
+foreach (\$context['_seq'] as \$context["k"] => \$context["v"]) {
+    echo {$this->getVariableGetter('foo')};
+    ++\$context['loop']['index0'];
+    ++\$context['loop']['index'];
+    \$context['loop']['first'] = false;
+    if (isset(\$context['loop']['length'])) {
+        --\$context['loop']['revindex0'];
+        --\$context['loop']['revindex'];
+        \$context['loop']['last'] = 0 === \$context['loop']['revindex0'];
+    }
+}
+\$_parent = \$context['_parent'];
+unset(\$context['_seq'], \$context['_iterated'], \$context['k'], \$context['v'], \$context['_parent'], \$context['loop']);
+\$context = array_intersect_key(\$context, \$_parent) + \$_parent;
+EOF
+        );
+
+        $keyTarget = new Twig_Node_Expression_AssignName('k', 1);
+        $valueTarget = new Twig_Node_Expression_AssignName('v', 1);
+        $seq = new Twig_Node_Expression_Name('values', 1);
+        $ifexpr = new Twig_Node_Expression_Constant(true, 1);
+        $body = new Twig_Node(array(new Twig_Node_Print(new Twig_Node_Expression_Name('foo', 1), 1)), array(), 1);
+        $else = null;
+        $node = new Twig_Node_For($keyTarget, $valueTarget, $seq, $ifexpr, $body, $else, 1);
+        $node->setAttribute('with_loop', true);
+
+        $tests[] = array($node, <<<EOF
+// line 1
+\$context['_parent'] = \$context;
+\$context['_seq'] = twig_ensure_traversable({$this->getVariableGetter('values')});
+\$context['loop'] = array(
+  'parent' => \$context['_parent'],
+  'index0' => 0,
+  'index'  => 1,
+  'first'  => true,
+);
+foreach (\$context['_seq'] as \$context["k"] => \$context["v"]) {
+    if (true) {
+        echo {$this->getVariableGetter('foo')};
+        ++\$context['loop']['index0'];
+        ++\$context['loop']['index'];
+        \$context['loop']['first'] = false;
+    }
+}
+\$_parent = \$context['_parent'];
+unset(\$context['_seq'], \$context['_iterated'], \$context['k'], \$context['v'], \$context['_parent'], \$context['loop']);
+\$context = array_intersect_key(\$context, \$_parent) + \$_parent;
+EOF
+        );
+
+        $keyTarget = new Twig_Node_Expression_AssignName('k', 1);
+        $valueTarget = new Twig_Node_Expression_AssignName('v', 1);
+        $seq = new Twig_Node_Expression_Name('values', 1);
+        $ifexpr = null;
+        $body = new Twig_Node(array(new Twig_Node_Print(new Twig_Node_Expression_Name('foo', 1), 1)), array(), 1);
+        $else = new Twig_Node_Print(new Twig_Node_Expression_Name('foo', 1), 1);
+        $node = new Twig_Node_For($keyTarget, $valueTarget, $seq, $ifexpr, $body, $else, 1);
+        $node->setAttribute('with_loop', true);
+
+        $tests[] = array($node, <<<EOF
+// line 1
+\$context['_parent'] = \$context;
+\$context['_seq'] = twig_ensure_traversable({$this->getVariableGetter('values')});
+\$context['_iterated'] = false;
+\$context['loop'] = array(
+  'parent' => \$context['_parent'],
+  'index0' => 0,
+  'index'  => 1,
+  'first'  => true,
+);
+if (is_array(\$context['_seq']) || (is_object(\$context['_seq']) && \$context['_seq'] instanceof Countable)) {
+    \$length = count(\$context['_seq']);
+    \$context['loop']['revindex0'] = \$length - 1;
+    \$context['loop']['revindex'] = \$length;
+    \$context['loop']['length'] = \$length;
+    \$context['loop']['last'] = 1 === \$length;
+}
+foreach (\$context['_seq'] as \$context["k"] => \$context["v"]) {
+    echo {$this->getVariableGetter('foo')};
+    \$context['_iterated'] = true;
+    ++\$context['loop']['index0'];
+    ++\$context['loop']['index'];
+    \$context['loop']['first'] = false;
+    if (isset(\$context['loop']['length'])) {
+        --\$context['loop']['revindex0'];
+        --\$context['loop']['revindex'];
+        \$context['loop']['last'] = 0 === \$context['loop']['revindex0'];
+    }
+}
+if (!\$context['_iterated']) {
+    echo {$this->getVariableGetter('foo')};
+}
+\$_parent = \$context['_parent'];
+unset(\$context['_seq'], \$context['_iterated'], \$context['k'], \$context['v'], \$context['_parent'], \$context['loop']);
+\$context = array_intersect_key(\$context, \$_parent) + \$_parent;
+EOF
+        );
+
+        return $tests;
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/IfTest.php b/vendor/twig/twig/test/Twig/Tests/Node/IfTest.php
new file mode 100644
index 000000000..e47dd6540
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/IfTest.php
@@ -0,0 +1,88 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_IfTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $t = new Twig_Node(array(
+            new Twig_Node_Expression_Constant(true, 1),
+            new Twig_Node_Print(new Twig_Node_Expression_Name('foo', 1), 1),
+        ), array(), 1);
+        $else = null;
+        $node = new Twig_Node_If($t, $else, 1);
+
+        $this->assertEquals($t, $node->getNode('tests'));
+        $this->assertNull($node->getNode('else'));
+
+        $else = new Twig_Node_Print(new Twig_Node_Expression_Name('bar', 1), 1);
+        $node = new Twig_Node_If($t, $else, 1);
+        $this->assertEquals($else, $node->getNode('else'));
+    }
+
+    public function getTests()
+    {
+        $tests = array();
+
+        $t = new Twig_Node(array(
+            new Twig_Node_Expression_Constant(true, 1),
+            new Twig_Node_Print(new Twig_Node_Expression_Name('foo', 1), 1),
+        ), array(), 1);
+        $else = null;
+        $node = new Twig_Node_If($t, $else, 1);
+
+        $tests[] = array($node, <<<EOF
+// line 1
+if (true) {
+    echo {$this->getVariableGetter('foo')};
+}
+EOF
+        );
+
+        $t = new Twig_Node(array(
+            new Twig_Node_Expression_Constant(true, 1),
+            new Twig_Node_Print(new Twig_Node_Expression_Name('foo', 1), 1),
+            new Twig_Node_Expression_Constant(false, 1),
+            new Twig_Node_Print(new Twig_Node_Expression_Name('bar', 1), 1),
+        ), array(), 1);
+        $else = null;
+        $node = new Twig_Node_If($t, $else, 1);
+
+        $tests[] = array($node, <<<EOF
+// line 1
+if (true) {
+    echo {$this->getVariableGetter('foo')};
+} elseif (false) {
+    echo {$this->getVariableGetter('bar')};
+}
+EOF
+        );
+
+        $t = new Twig_Node(array(
+            new Twig_Node_Expression_Constant(true, 1),
+            new Twig_Node_Print(new Twig_Node_Expression_Name('foo', 1), 1),
+        ), array(), 1);
+        $else = new Twig_Node_Print(new Twig_Node_Expression_Name('bar', 1), 1);
+        $node = new Twig_Node_If($t, $else, 1);
+
+        $tests[] = array($node, <<<EOF
+// line 1
+if (true) {
+    echo {$this->getVariableGetter('foo')};
+} else {
+    echo {$this->getVariableGetter('bar')};
+}
+EOF
+        );
+
+        return $tests;
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/ImportTest.php b/vendor/twig/twig/test/Twig/Tests/Node/ImportTest.php
new file mode 100644
index 000000000..36525b251
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/ImportTest.php
@@ -0,0 +1,40 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_ImportTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $macro = new Twig_Node_Expression_Constant('foo.twig', 1);
+        $var = new Twig_Node_Expression_AssignName('macro', 1);
+        $node = new Twig_Node_Import($macro, $var, 1);
+
+        $this->assertEquals($macro, $node->getNode('expr'));
+        $this->assertEquals($var, $node->getNode('var'));
+    }
+
+    public function getTests()
+    {
+        $tests = array();
+
+        $macro = new Twig_Node_Expression_Constant('foo.twig', 1);
+        $var = new Twig_Node_Expression_AssignName('macro', 1);
+        $node = new Twig_Node_Import($macro, $var, 1);
+
+        $tests[] = array($node, <<<EOF
+// line 1
+\$context["macro"] = \$this->loadTemplate("foo.twig", null, 1);
+EOF
+        );
+
+        return $tests;
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/IncludeTest.php b/vendor/twig/twig/test/Twig/Tests/Node/IncludeTest.php
new file mode 100644
index 000000000..6fe5c17bf
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/IncludeTest.php
@@ -0,0 +1,83 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_IncludeTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $expr = new Twig_Node_Expression_Constant('foo.twig', 1);
+        $node = new Twig_Node_Include($expr, null, false, false, 1);
+
+        $this->assertNull($node->getNode('variables'));
+        $this->assertEquals($expr, $node->getNode('expr'));
+        $this->assertFalse($node->getAttribute('only'));
+
+        $vars = new Twig_Node_Expression_Array(array(new Twig_Node_Expression_Constant('foo', 1), new Twig_Node_Expression_Constant(true, 1)), 1);
+        $node = new Twig_Node_Include($expr, $vars, true, false, 1);
+        $this->assertEquals($vars, $node->getNode('variables'));
+        $this->assertTrue($node->getAttribute('only'));
+    }
+
+    public function getTests()
+    {
+        $tests = array();
+
+        $expr = new Twig_Node_Expression_Constant('foo.twig', 1);
+        $node = new Twig_Node_Include($expr, null, false, false, 1);
+        $tests[] = array($node, <<<EOF
+// line 1
+\$this->loadTemplate("foo.twig", null, 1)->display(\$context);
+EOF
+        );
+
+        $expr = new Twig_Node_Expression_Conditional(
+                        new Twig_Node_Expression_Constant(true, 1),
+                        new Twig_Node_Expression_Constant('foo', 1),
+                        new Twig_Node_Expression_Constant('foo', 1),
+                        0
+                    );
+        $node = new Twig_Node_Include($expr, null, false, false, 1);
+        $tests[] = array($node, <<<EOF
+// line 1
+\$this->loadTemplate(((true) ? ("foo") : ("foo")), null, 1)->display(\$context);
+EOF
+        );
+
+        $expr = new Twig_Node_Expression_Constant('foo.twig', 1);
+        $vars = new Twig_Node_Expression_Array(array(new Twig_Node_Expression_Constant('foo', 1), new Twig_Node_Expression_Constant(true, 1)), 1);
+        $node = new Twig_Node_Include($expr, $vars, false, false, 1);
+        $tests[] = array($node, <<<EOF
+// line 1
+\$this->loadTemplate("foo.twig", null, 1)->display(array_merge(\$context, array("foo" => true)));
+EOF
+        );
+
+        $node = new Twig_Node_Include($expr, $vars, true, false, 1);
+        $tests[] = array($node, <<<EOF
+// line 1
+\$this->loadTemplate("foo.twig", null, 1)->display(array("foo" => true));
+EOF
+        );
+
+        $node = new Twig_Node_Include($expr, $vars, true, true, 1);
+        $tests[] = array($node, <<<EOF
+// line 1
+try {
+    \$this->loadTemplate("foo.twig", null, 1)->display(array("foo" => true));
+} catch (Twig_Error_Loader \$e) {
+    // ignore missing template
+}
+EOF
+        );
+
+        return $tests;
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/MacroTest.php b/vendor/twig/twig/test/Twig/Tests/Node/MacroTest.php
new file mode 100644
index 000000000..901e57b91
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/MacroTest.php
@@ -0,0 +1,70 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_MacroTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $body = new Twig_Node_Text('foo', 1);
+        $arguments = new Twig_Node(array(new Twig_Node_Expression_Name('foo', 1)), array(), 1);
+        $node = new Twig_Node_Macro('foo', $body, $arguments, 1);
+
+        $this->assertEquals($body, $node->getNode('body'));
+        $this->assertEquals($arguments, $node->getNode('arguments'));
+        $this->assertEquals('foo', $node->getAttribute('name'));
+    }
+
+    public function getTests()
+    {
+        $body = new Twig_Node_Text('foo', 1);
+        $arguments = new Twig_Node(array(
+            'foo' => new Twig_Node_Expression_Constant(null, 1),
+            'bar' => new Twig_Node_Expression_Constant('Foo', 1),
+        ), array(), 1);
+        $node = new Twig_Node_Macro('foo', $body, $arguments, 1);
+
+        if (PHP_VERSION_ID >= 50600) {
+            $declaration = ', ...$__varargs__';
+            $varargs = '$__varargs__';
+        } else {
+            $declaration = '';
+            $varargs = 'func_num_args() > 2 ? array_slice(func_get_args(), 2) : array()';
+        }
+
+        return array(
+            array($node, <<<EOF
+// line 1
+public function getfoo(\$__foo__ = null, \$__bar__ = "Foo"$declaration)
+{
+    \$context = \$this->env->mergeGlobals(array(
+        "foo" => \$__foo__,
+        "bar" => \$__bar__,
+        "varargs" => $varargs,
+    ));
+
+    \$blocks = array();
+
+    ob_start();
+    try {
+        echo "foo";
+    } catch (Exception \$e) {
+        ob_end_clean();
+
+        throw \$e;
+    }
+
+    return ('' === \$tmp = ob_get_clean()) ? '' : new Twig_Markup(\$tmp, \$this->env->getCharset());
+}
+EOF
+            ),
+        );
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/ModuleTest.php b/vendor/twig/twig/test/Twig/Tests/Node/ModuleTest.php
new file mode 100644
index 000000000..35b3e2e87
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/ModuleTest.php
@@ -0,0 +1,183 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_ModuleTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $body = new Twig_Node_Text('foo', 1);
+        $parent = new Twig_Node_Expression_Constant('layout.twig', 1);
+        $blocks = new Twig_Node();
+        $macros = new Twig_Node();
+        $traits = new Twig_Node();
+        $filename = 'foo.twig';
+        $node = new Twig_Node_Module($body, $parent, $blocks, $macros, $traits, new Twig_Node(array()), $filename);
+
+        $this->assertEquals($body, $node->getNode('body'));
+        $this->assertEquals($blocks, $node->getNode('blocks'));
+        $this->assertEquals($macros, $node->getNode('macros'));
+        $this->assertEquals($parent, $node->getNode('parent'));
+        $this->assertEquals($filename, $node->getAttribute('filename'));
+    }
+
+    public function getTests()
+    {
+        $twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+
+        $tests = array();
+
+        $body = new Twig_Node_Text('foo', 1);
+        $extends = null;
+        $blocks = new Twig_Node();
+        $macros = new Twig_Node();
+        $traits = new Twig_Node();
+        $filename = 'foo.twig';
+
+        $node = new Twig_Node_Module($body, $extends, $blocks, $macros, $traits, new Twig_Node(array()), $filename);
+        $tests[] = array($node, <<<EOF
+<?php
+
+/* foo.twig */
+class __TwigTemplate_%x extends Twig_Template
+{
+    public function __construct(Twig_Environment \$env)
+    {
+        parent::__construct(\$env);
+
+        \$this->parent = false;
+
+        \$this->blocks = array(
+        );
+    }
+
+    protected function doDisplay(array \$context, array \$blocks = array())
+    {
+        // line 1
+        echo "foo";
+    }
+
+    public function getTemplateName()
+    {
+        return "foo.twig";
+    }
+
+    public function getDebugInfo()
+    {
+        return array (  19 => 1,);
+    }
+}
+EOF
+        , $twig, true);
+
+        $import = new Twig_Node_Import(new Twig_Node_Expression_Constant('foo.twig', 1), new Twig_Node_Expression_AssignName('macro', 1), 2);
+
+        $body = new Twig_Node(array($import));
+        $extends = new Twig_Node_Expression_Constant('layout.twig', 1);
+
+        $node = new Twig_Node_Module($body, $extends, $blocks, $macros, $traits, new Twig_Node(array()), $filename);
+        $tests[] = array($node, <<<EOF
+<?php
+
+/* foo.twig */
+class __TwigTemplate_%x extends Twig_Template
+{
+    public function __construct(Twig_Environment \$env)
+    {
+        parent::__construct(\$env);
+
+        // line 1
+        \$this->parent = \$this->loadTemplate("layout.twig", "foo.twig", 1);
+        \$this->blocks = array(
+        );
+    }
+
+    protected function doGetParent(array \$context)
+    {
+        return "layout.twig";
+    }
+
+    protected function doDisplay(array \$context, array \$blocks = array())
+    {
+        // line 2
+        \$context["macro"] = \$this->loadTemplate("foo.twig", "foo.twig", 2);
+        // line 1
+        \$this->parent->display(\$context, array_merge(\$this->blocks, \$blocks));
+    }
+
+    public function getTemplateName()
+    {
+        return "foo.twig";
+    }
+
+    public function isTraitable()
+    {
+        return false;
+    }
+
+    public function getDebugInfo()
+    {
+        return array (  26 => 1,  24 => 2,  11 => 1,);
+    }
+}
+EOF
+        , $twig, true);
+
+        $set = new Twig_Node_Set(false, new Twig_Node(array(new Twig_Node_Expression_AssignName('foo', 4))), new Twig_Node(array(new Twig_Node_Expression_Constant('foo', 4))), 4);
+        $body = new Twig_Node(array($set));
+        $extends = new Twig_Node_Expression_Conditional(
+                        new Twig_Node_Expression_Constant(true, 2),
+                        new Twig_Node_Expression_Constant('foo', 2),
+                        new Twig_Node_Expression_Constant('foo', 2),
+                        2
+                    );
+
+        $node = new Twig_Node_Module($body, $extends, $blocks, $macros, $traits, new Twig_Node(array()), $filename);
+        $tests[] = array($node, <<<EOF
+<?php
+
+/* foo.twig */
+class __TwigTemplate_%x extends Twig_Template
+{
+    protected function doGetParent(array \$context)
+    {
+        // line 2
+        return \$this->loadTemplate(((true) ? ("foo") : ("foo")), "foo.twig", 2);
+    }
+
+    protected function doDisplay(array \$context, array \$blocks = array())
+    {
+        // line 4
+        \$context["foo"] = "foo";
+        // line 2
+        \$this->getParent(\$context)->display(\$context, array_merge(\$this->blocks, \$blocks));
+    }
+
+    public function getTemplateName()
+    {
+        return "foo.twig";
+    }
+
+    public function isTraitable()
+    {
+        return false;
+    }
+
+    public function getDebugInfo()
+    {
+        return array (  17 => 2,  15 => 4,  9 => 2,);
+    }
+}
+EOF
+        , $twig, true);
+
+        return $tests;
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/PrintTest.php b/vendor/twig/twig/test/Twig/Tests/Node/PrintTest.php
new file mode 100644
index 000000000..4e0990fac
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/PrintTest.php
@@ -0,0 +1,29 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_PrintTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $expr = new Twig_Node_Expression_Constant('foo', 1);
+        $node = new Twig_Node_Print($expr, 1);
+
+        $this->assertEquals($expr, $node->getNode('expr'));
+    }
+
+    public function getTests()
+    {
+        $tests = array();
+        $tests[] = array(new Twig_Node_Print(new Twig_Node_Expression_Constant('foo', 1), 1), "// line 1\necho \"foo\";");
+
+        return $tests;
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/SandboxTest.php b/vendor/twig/twig/test/Twig/Tests/Node/SandboxTest.php
new file mode 100644
index 000000000..46ecf9731
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/SandboxTest.php
@@ -0,0 +1,44 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_SandboxTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $body = new Twig_Node_Text('foo', 1);
+        $node = new Twig_Node_Sandbox($body, 1);
+
+        $this->assertEquals($body, $node->getNode('body'));
+    }
+
+    public function getTests()
+    {
+        $tests = array();
+
+        $body = new Twig_Node_Text('foo', 1);
+        $node = new Twig_Node_Sandbox($body, 1);
+
+        $tests[] = array($node, <<<EOF
+// line 1
+\$sandbox = \$this->env->getExtension('sandbox');
+if (!\$alreadySandboxed = \$sandbox->isSandboxed()) {
+    \$sandbox->enableSandbox();
+}
+echo "foo";
+if (!\$alreadySandboxed) {
+    \$sandbox->disableSandbox();
+}
+EOF
+        );
+
+        return $tests;
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/SandboxedPrintTest.php b/vendor/twig/twig/test/Twig/Tests/Node/SandboxedPrintTest.php
new file mode 100644
index 000000000..05e1854cb
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/SandboxedPrintTest.php
@@ -0,0 +1,33 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_SandboxedPrintTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $node = new Twig_Node_SandboxedPrint($expr = new Twig_Node_Expression_Constant('foo', 1), 1);
+
+        $this->assertEquals($expr, $node->getNode('expr'));
+    }
+
+    public function getTests()
+    {
+        $tests = array();
+
+        $tests[] = array(new Twig_Node_SandboxedPrint(new Twig_Node_Expression_Constant('foo', 1), 1), <<<EOF
+// line 1
+echo \$this->env->getExtension('sandbox')->ensureToStringAllowed("foo");
+EOF
+        );
+
+        return $tests;
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/SetTest.php b/vendor/twig/twig/test/Twig/Tests/Node/SetTest.php
new file mode 100644
index 000000000..62ad2803e
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/SetTest.php
@@ -0,0 +1,69 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_SetTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $names = new Twig_Node(array(new Twig_Node_Expression_AssignName('foo', 1)), array(), 1);
+        $values = new Twig_Node(array(new Twig_Node_Expression_Constant('foo', 1)), array(), 1);
+        $node = new Twig_Node_Set(false, $names, $values, 1);
+
+        $this->assertEquals($names, $node->getNode('names'));
+        $this->assertEquals($values, $node->getNode('values'));
+        $this->assertFalse($node->getAttribute('capture'));
+    }
+
+    public function getTests()
+    {
+        $tests = array();
+
+        $names = new Twig_Node(array(new Twig_Node_Expression_AssignName('foo', 1)), array(), 1);
+        $values = new Twig_Node(array(new Twig_Node_Expression_Constant('foo', 1)), array(), 1);
+        $node = new Twig_Node_Set(false, $names, $values, 1);
+        $tests[] = array($node, <<<EOF
+// line 1
+\$context["foo"] = "foo";
+EOF
+        );
+
+        $names = new Twig_Node(array(new Twig_Node_Expression_AssignName('foo', 1)), array(), 1);
+        $values = new Twig_Node(array(new Twig_Node_Print(new Twig_Node_Expression_Constant('foo', 1), 1)), array(), 1);
+        $node = new Twig_Node_Set(true, $names, $values, 1);
+        $tests[] = array($node, <<<EOF
+// line 1
+ob_start();
+echo "foo";
+\$context["foo"] = ('' === \$tmp = ob_get_clean()) ? '' : new Twig_Markup(\$tmp, \$this->env->getCharset());
+EOF
+        );
+
+        $names = new Twig_Node(array(new Twig_Node_Expression_AssignName('foo', 1)), array(), 1);
+        $values = new Twig_Node_Text('foo', 1);
+        $node = new Twig_Node_Set(true, $names, $values, 1);
+        $tests[] = array($node, <<<EOF
+// line 1
+\$context["foo"] = ('' === \$tmp = "foo") ? '' : new Twig_Markup(\$tmp, \$this->env->getCharset());
+EOF
+        );
+
+        $names = new Twig_Node(array(new Twig_Node_Expression_AssignName('foo', 1), new Twig_Node_Expression_AssignName('bar', 1)), array(), 1);
+        $values = new Twig_Node(array(new Twig_Node_Expression_Constant('foo', 1), new Twig_Node_Expression_Name('bar', 1)), array(), 1);
+        $node = new Twig_Node_Set(false, $names, $values, 1);
+        $tests[] = array($node, <<<EOF
+// line 1
+list(\$context["foo"], \$context["bar"]) = array("foo", {$this->getVariableGetter('bar')});
+EOF
+        );
+
+        return $tests;
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/SpacelessTest.php b/vendor/twig/twig/test/Twig/Tests/Node/SpacelessTest.php
new file mode 100644
index 000000000..222ca0920
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/SpacelessTest.php
@@ -0,0 +1,37 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_SpacelessTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $body = new Twig_Node(array(new Twig_Node_Text('<div>   <div>   foo   </div>   </div>', 1)));
+        $node = new Twig_Node_Spaceless($body, 1);
+
+        $this->assertEquals($body, $node->getNode('body'));
+    }
+
+    public function getTests()
+    {
+        $body = new Twig_Node(array(new Twig_Node_Text('<div>   <div>   foo   </div>   </div>', 1)));
+        $node = new Twig_Node_Spaceless($body, 1);
+
+        return array(
+            array($node, <<<EOF
+// line 1
+ob_start();
+echo "<div>   <div>   foo   </div>   </div>";
+echo trim(preg_replace('/>\s+</', '><', ob_get_clean()));
+EOF
+            ),
+        );
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Node/TextTest.php b/vendor/twig/twig/test/Twig/Tests/Node/TextTest.php
new file mode 100644
index 000000000..ceaf67f4c
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Node/TextTest.php
@@ -0,0 +1,28 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Node_TextTest extends Twig_Test_NodeTestCase
+{
+    public function testConstructor()
+    {
+        $node = new Twig_Node_Text('foo', 1);
+
+        $this->assertEquals('foo', $node->getAttribute('data'));
+    }
+
+    public function getTests()
+    {
+        $tests = array();
+        $tests[] = array(new Twig_Node_Text('foo', 1), "// line 1\necho \"foo\";");
+
+        return $tests;
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/NodeVisitor/OptimizerTest.php b/vendor/twig/twig/test/Twig/Tests/NodeVisitor/OptimizerTest.php
new file mode 100644
index 000000000..b5ea7aac2
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/NodeVisitor/OptimizerTest.php
@@ -0,0 +1,124 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Tests_NodeVisitor_OptimizerTest extends PHPUnit_Framework_TestCase
+{
+    public function testRenderBlockOptimizer()
+    {
+        $env = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('cache' => false, 'autoescape' => false));
+
+        $stream = $env->parse($env->tokenize('{{ block("foo") }}', 'index'));
+
+        $node = $stream->getNode('body')->getNode(0);
+
+        $this->assertEquals('Twig_Node_Expression_BlockReference', get_class($node));
+        $this->assertTrue($node->getAttribute('output'));
+    }
+
+    public function testRenderParentBlockOptimizer()
+    {
+        $env = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('cache' => false, 'autoescape' => false));
+
+        $stream = $env->parse($env->tokenize('{% extends "foo" %}{% block content %}{{ parent() }}{% endblock %}', 'index'));
+
+        $node = $stream->getNode('blocks')->getNode('content')->getNode(0)->getNode('body');
+
+        $this->assertEquals('Twig_Node_Expression_Parent', get_class($node));
+        $this->assertTrue($node->getAttribute('output'));
+    }
+
+    public function testRenderVariableBlockOptimizer()
+    {
+        if (PHP_VERSION_ID >= 50400) {
+            return;
+        }
+
+        $env = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('cache' => false, 'autoescape' => false));
+        $stream = $env->parse($env->tokenize('{{ block(name|lower) }}', 'index'));
+
+        $node = $stream->getNode('body')->getNode(0)->getNode(1);
+
+        $this->assertEquals('Twig_Node_Expression_BlockReference', get_class($node));
+        $this->assertTrue($node->getAttribute('output'));
+    }
+
+    /**
+     * @dataProvider getTestsForForOptimizer
+     */
+    public function testForOptimizer($template, $expected)
+    {
+        $env = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('cache' => false));
+
+        $stream = $env->parse($env->tokenize($template, 'index'));
+
+        foreach ($expected as $target => $withLoop) {
+            $this->assertTrue($this->checkForConfiguration($stream, $target, $withLoop), sprintf('variable %s is %soptimized', $target, $withLoop ? 'not ' : ''));
+        }
+    }
+
+    public function getTestsForForOptimizer()
+    {
+        return array(
+            array('{% for i in foo %}{% endfor %}', array('i' => false)),
+
+            array('{% for i in foo %}{{ loop.index }}{% endfor %}', array('i' => true)),
+
+            array('{% for i in foo %}{% for j in foo %}{% endfor %}{% endfor %}', array('i' => false, 'j' => false)),
+
+            array('{% for i in foo %}{% include "foo" %}{% endfor %}', array('i' => true)),
+
+            array('{% for i in foo %}{% include "foo" only %}{% endfor %}', array('i' => false)),
+
+            array('{% for i in foo %}{% include "foo" with { "foo": "bar" } only %}{% endfor %}', array('i' => false)),
+
+            array('{% for i in foo %}{% include "foo" with { "foo": loop.index } only %}{% endfor %}', array('i' => true)),
+
+            array('{% for i in foo %}{% for j in foo %}{{ loop.index }}{% endfor %}{% endfor %}', array('i' => false, 'j' => true)),
+
+            array('{% for i in foo %}{% for j in foo %}{{ loop.parent.loop.index }}{% endfor %}{% endfor %}', array('i' => true, 'j' => true)),
+
+            array('{% for i in foo %}{% set l = loop %}{% for j in foo %}{{ l.index }}{% endfor %}{% endfor %}', array('i' => true, 'j' => false)),
+
+            array('{% for i in foo %}{% for j in foo %}{{ foo.parent.loop.index }}{% endfor %}{% endfor %}', array('i' => false, 'j' => false)),
+
+            array('{% for i in foo %}{% for j in foo %}{{ loop["parent"].loop.index }}{% endfor %}{% endfor %}', array('i' => true, 'j' => true)),
+
+            array('{% for i in foo %}{{ include("foo") }}{% endfor %}', array('i' => true)),
+
+            array('{% for i in foo %}{{ include("foo", with_context = false) }}{% endfor %}', array('i' => false)),
+
+            array('{% for i in foo %}{{ include("foo", with_context = true) }}{% endfor %}', array('i' => true)),
+
+            array('{% for i in foo %}{{ include("foo", { "foo": "bar" }, with_context = false) }}{% endfor %}', array('i' => false)),
+
+            array('{% for i in foo %}{{ include("foo", { "foo": loop.index }, with_context = false) }}{% endfor %}', array('i' => true)),
+        );
+    }
+
+    public function checkForConfiguration(Twig_NodeInterface $node = null, $target, $withLoop)
+    {
+        if (null === $node) {
+            return;
+        }
+
+        foreach ($node as $n) {
+            if ($n instanceof Twig_Node_For) {
+                if ($target === $n->getNode('value_target')->getAttribute('name')) {
+                    return $withLoop == $n->getAttribute('with_loop');
+                }
+            }
+
+            $ret = $this->checkForConfiguration($n, $target, $withLoop);
+            if (null !== $ret) {
+                return $ret;
+            }
+        }
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/ParserTest.php b/vendor/twig/twig/test/Twig/Tests/ParserTest.php
new file mode 100644
index 000000000..01daf309a
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/ParserTest.php
@@ -0,0 +1,196 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Tests_ParserTest extends PHPUnit_Framework_TestCase
+{
+    /**
+     * @expectedException Twig_Error_Syntax
+     */
+    public function testSetMacroThrowsExceptionOnReservedMethods()
+    {
+        $parser = $this->getParser();
+        $parser->setMacro('parent', $this->getMock('Twig_Node_Macro', array(), array(), '', null));
+    }
+
+    /**
+     * @expectedException        Twig_Error_Syntax
+     * @expectedExceptionMessage Unknown "foo" tag. Did you mean "for" at line 1?
+     */
+    public function testUnknownTag()
+    {
+        $stream = new Twig_TokenStream(array(
+            new Twig_Token(Twig_Token::BLOCK_START_TYPE, '', 1),
+            new Twig_Token(Twig_Token::NAME_TYPE, 'foo', 1),
+            new Twig_Token(Twig_Token::BLOCK_END_TYPE, '', 1),
+            new Twig_Token(Twig_Token::EOF_TYPE, '', 1),
+        ));
+        $parser = new Twig_Parser(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+        $parser->parse($stream);
+    }
+
+    /**
+     * @expectedException        Twig_Error_Syntax
+     * @expectedExceptionMessage Unknown "foobar" tag at line 1.
+     */
+    public function testUnknownTagWithoutSuggestions()
+    {
+        $stream = new Twig_TokenStream(array(
+            new Twig_Token(Twig_Token::BLOCK_START_TYPE, '', 1),
+            new Twig_Token(Twig_Token::NAME_TYPE, 'foobar', 1),
+            new Twig_Token(Twig_Token::BLOCK_END_TYPE, '', 1),
+            new Twig_Token(Twig_Token::EOF_TYPE, '', 1),
+        ));
+        $parser = new Twig_Parser(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+        $parser->parse($stream);
+    }
+
+    /**
+     * @dataProvider getFilterBodyNodesData
+     */
+    public function testFilterBodyNodes($input, $expected)
+    {
+        $parser = $this->getParser();
+
+        $this->assertEquals($expected, $parser->filterBodyNodes($input));
+    }
+
+    public function getFilterBodyNodesData()
+    {
+        return array(
+            array(
+                new Twig_Node(array(new Twig_Node_Text('   ', 1))),
+                new Twig_Node(array()),
+            ),
+            array(
+                $input = new Twig_Node(array(new Twig_Node_Set(false, new Twig_Node(), new Twig_Node(), 1))),
+                $input,
+            ),
+            array(
+                $input = new Twig_Node(array(new Twig_Node_Set(true, new Twig_Node(), new Twig_Node(array(new Twig_Node(array(new Twig_Node_Text('foo', 1))))), 1))),
+                $input,
+            ),
+        );
+    }
+
+    /**
+     * @dataProvider getFilterBodyNodesDataThrowsException
+     * @expectedException Twig_Error_Syntax
+     */
+    public function testFilterBodyNodesThrowsException($input)
+    {
+        $parser = $this->getParser();
+
+        $parser->filterBodyNodes($input);
+    }
+
+    public function getFilterBodyNodesDataThrowsException()
+    {
+        return array(
+            array(new Twig_Node_Text('foo', 1)),
+            array(new Twig_Node(array(new Twig_Node(array(new Twig_Node_Text('foo', 1)))))),
+        );
+    }
+
+    /**
+     * @expectedException Twig_Error_Syntax
+     * @expectedExceptionMessage A template that extends another one cannot have a body but a byte order mark (BOM) has been detected; it must be removed at line 1.
+     */
+    public function testFilterBodyNodesWithBOM()
+    {
+        $parser = $this->getParser();
+        $parser->filterBodyNodes(new Twig_Node_Text(chr(0xEF).chr(0xBB).chr(0xBF), 1));
+    }
+
+    public function testParseIsReentrant()
+    {
+        $twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array(
+            'autoescape' => false,
+            'optimizations' => 0,
+        ));
+        $twig->addTokenParser(new TestTokenParser());
+
+        $parser = new Twig_Parser($twig);
+
+        $parser->parse(new Twig_TokenStream(array(
+            new Twig_Token(Twig_Token::BLOCK_START_TYPE, '', 1),
+            new Twig_Token(Twig_Token::NAME_TYPE, 'test', 1),
+            new Twig_Token(Twig_Token::BLOCK_END_TYPE, '', 1),
+            new Twig_Token(Twig_Token::VAR_START_TYPE, '', 1),
+            new Twig_Token(Twig_Token::NAME_TYPE, 'foo', 1),
+            new Twig_Token(Twig_Token::VAR_END_TYPE, '', 1),
+            new Twig_Token(Twig_Token::EOF_TYPE, '', 1),
+        )));
+
+        $this->assertNull($parser->getParent());
+    }
+
+    // The getVarName() must not depend on the template loaders,
+    // If this test does not throw any exception, that's good.
+    // see https://github.com/symfony/symfony/issues/4218
+    public function testGetVarName()
+    {
+        $twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'), array(
+            'autoescape' => false,
+            'optimizations' => 0,
+        ));
+
+        $twig->parse($twig->tokenize(<<<EOF
+{% from _self import foo %}
+
+{% macro foo() %}
+    {{ foo }}
+{% endmacro %}
+EOF
+        ));
+    }
+
+    protected function getParser()
+    {
+        $parser = new TestParser(new Twig_Environment($this->getMock('Twig_LoaderInterface')));
+        $parser->setParent(new Twig_Node());
+        $parser->stream = $this->getMockBuilder('Twig_TokenStream')->disableOriginalConstructor()->getMock();
+
+        return $parser;
+    }
+}
+
+class TestParser extends Twig_Parser
+{
+    public $stream;
+
+    public function filterBodyNodes(Twig_NodeInterface $node)
+    {
+        return parent::filterBodyNodes($node);
+    }
+}
+
+class TestTokenParser extends Twig_TokenParser
+{
+    public function parse(Twig_Token $token)
+    {
+        // simulate the parsing of another template right in the middle of the parsing of the current template
+        $this->parser->parse(new Twig_TokenStream(array(
+            new Twig_Token(Twig_Token::BLOCK_START_TYPE, '', 1),
+            new Twig_Token(Twig_Token::NAME_TYPE, 'extends', 1),
+            new Twig_Token(Twig_Token::STRING_TYPE, 'base', 1),
+            new Twig_Token(Twig_Token::BLOCK_END_TYPE, '', 1),
+            new Twig_Token(Twig_Token::EOF_TYPE, '', 1),
+        )));
+
+        $this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
+
+        return new Twig_Node(array());
+    }
+
+    public function getTag()
+    {
+        return 'test';
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Profiler/Dumper/AbstractTest.php b/vendor/twig/twig/test/Twig/Tests/Profiler/Dumper/AbstractTest.php
new file mode 100644
index 000000000..da97f478a
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Profiler/Dumper/AbstractTest.php
@@ -0,0 +1,101 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+abstract class Twig_Tests_Profiler_Dumper_AbstractTest extends PHPUnit_Framework_TestCase
+{
+    protected function getProfile()
+    {
+        $profile = $this->getMockBuilder('Twig_Profiler_Profile')->disableOriginalConstructor()->getMock();
+
+        $profile->expects($this->any())->method('isRoot')->will($this->returnValue(true));
+        $profile->expects($this->any())->method('getName')->will($this->returnValue('main'));
+        $profile->expects($this->any())->method('getDuration')->will($this->returnValue(1));
+        $profile->expects($this->any())->method('getMemoryUsage')->will($this->returnValue(0));
+        $profile->expects($this->any())->method('getPeakMemoryUsage')->will($this->returnValue(0));
+
+        $subProfiles = array(
+            $this->getIndexProfile(
+                array(
+                    $this->getEmbeddedBlockProfile(),
+                    $this->getEmbeddedTemplateProfile(
+                        array(
+                            $this->getIncludedTemplateProfile(),
+                        )
+                    ),
+                    $this->getMacroProfile(),
+                    $this->getEmbeddedTemplateProfile(
+                        array(
+                            $this->getIncludedTemplateProfile(),
+                        )
+                    ),
+                )
+            ),
+        );
+
+        $profile->expects($this->any())->method('getProfiles')->will($this->returnValue($subProfiles));
+        $profile->expects($this->any())->method('getIterator')->will($this->returnValue(new ArrayIterator($subProfiles)));
+
+        return $profile;
+    }
+
+    private function getIndexProfile(array $subProfiles = array())
+    {
+        return $this->generateProfile('main', 1, true, 'template', 'index.twig', $subProfiles);
+    }
+
+    private function getEmbeddedBlockProfile(array $subProfiles = array())
+    {
+        return $this->generateProfile('body', 0.0001, false, 'block', 'embedded.twig', $subProfiles);
+    }
+
+    private function getEmbeddedTemplateProfile(array $subProfiles = array())
+    {
+        return $this->generateProfile('main', 0.0001, true, 'template', 'embedded.twig', $subProfiles);
+    }
+
+    private function getIncludedTemplateProfile(array $subProfiles = array())
+    {
+        return $this->generateProfile('main', 0.0001, true, 'template', 'included.twig', $subProfiles);
+    }
+
+    private function getMacroProfile(array $subProfiles = array())
+    {
+        return $this->generateProfile('foo', 0.0001, false, 'macro', 'index.twig', $subProfiles);
+    }
+
+    /**
+     * @param string $name
+     * @param float  $duration
+     * @param bool   $isTemplate
+     * @param string $type
+     * @param string $templateName
+     * @param array  $subProfiles
+     *
+     * @return Twig_Profiler_Profile
+     */
+    private function generateProfile($name, $duration, $isTemplate, $type, $templateName, array $subProfiles = array())
+    {
+        $profile = $this->getMockBuilder('Twig_Profiler_Profile')->disableOriginalConstructor()->getMock();
+
+        $profile->expects($this->any())->method('isRoot')->will($this->returnValue(false));
+        $profile->expects($this->any())->method('getName')->will($this->returnValue($name));
+        $profile->expects($this->any())->method('getDuration')->will($this->returnValue($duration));
+        $profile->expects($this->any())->method('getMemoryUsage')->will($this->returnValue(0));
+        $profile->expects($this->any())->method('getPeakMemoryUsage')->will($this->returnValue(0));
+        $profile->expects($this->any())->method('isTemplate')->will($this->returnValue($isTemplate));
+        $profile->expects($this->any())->method('getType')->will($this->returnValue($type));
+        $profile->expects($this->any())->method('getTemplate')->will($this->returnValue($templateName));
+        $profile->expects($this->any())->method('getProfiles')->will($this->returnValue($subProfiles));
+        $profile->expects($this->any())->method('getIterator')->will($this->returnValue(new ArrayIterator($subProfiles)));
+
+        return $profile;
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Profiler/Dumper/BlackfireTest.php b/vendor/twig/twig/test/Twig/Tests/Profiler/Dumper/BlackfireTest.php
new file mode 100644
index 000000000..1a1b9d299
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Profiler/Dumper/BlackfireTest.php
@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Profiler_Dumper_BlackfireTest extends Twig_Tests_Profiler_Dumper_AbstractTest
+{
+    public function testDump()
+    {
+        $dumper = new Twig_Profiler_Dumper_Blackfire();
+
+        $this->assertStringMatchesFormat(<<<EOF
+file-format: BlackfireProbe
+cost-dimensions: wt mu pmu
+request-start: %d.%d
+
+main()//1 %d %d %d
+main()==>index.twig//1 %d %d %d
+index.twig==>embedded.twig::block(body)//1 %d %d 0
+index.twig==>embedded.twig//2 %d %d %d
+embedded.twig==>included.twig//2 %d %d %d
+index.twig==>index.twig::macro(foo)//1 %d %d %d
+EOF
+        , $dumper->dump($this->getProfile()));
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Profiler/Dumper/HtmlTest.php b/vendor/twig/twig/test/Twig/Tests/Profiler/Dumper/HtmlTest.php
new file mode 100644
index 000000000..66a68c4be
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Profiler/Dumper/HtmlTest.php
@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Profiler_Dumper_HtmlTest extends Twig_Tests_Profiler_Dumper_AbstractTest
+{
+    public function testDump()
+    {
+        $dumper = new Twig_Profiler_Dumper_Html();
+        $this->assertStringMatchesFormat(<<<EOF
+<pre>main <span style="color: #d44">%d.%dms/%d%</span>
+└ <span style="background-color: #ffd">index.twig</span> <span style="color: #d44">%d.%dms/%d%</span>
+  └ embedded.twig::block(<span style="background-color: #dfd">body</span>)
+  └ <span style="background-color: #ffd">embedded.twig</span>
+  │ └ <span style="background-color: #ffd">included.twig</span>
+  └ index.twig::macro(<span style="background-color: #ddf">foo</span>)
+  └ <span style="background-color: #ffd">embedded.twig</span>
+    └ <span style="background-color: #ffd">included.twig</span>
+</pre>
+EOF
+        , $dumper->dump($this->getProfile()));
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Profiler/Dumper/TextTest.php b/vendor/twig/twig/test/Twig/Tests/Profiler/Dumper/TextTest.php
new file mode 100644
index 000000000..e2ea165ac
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Profiler/Dumper/TextTest.php
@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Profiler_Dumper_TextTest extends Twig_Tests_Profiler_Dumper_AbstractTest
+{
+    public function testDump()
+    {
+        $dumper = new Twig_Profiler_Dumper_Text();
+        $this->assertStringMatchesFormat(<<<EOF
+main %d.%dms/%d%
+└ index.twig %d.%dms/%d%
+  └ embedded.twig::block(body)
+  └ embedded.twig
+  │ └ included.twig
+  └ index.twig::macro(foo)
+  └ embedded.twig
+    └ included.twig
+
+EOF
+        , $dumper->dump($this->getProfile()));
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/Profiler/ProfileTest.php b/vendor/twig/twig/test/Twig/Tests/Profiler/ProfileTest.php
new file mode 100644
index 000000000..f786f06ca
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/Profiler/ProfileTest.php
@@ -0,0 +1,100 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_Profiler_ProfileTest extends PHPUnit_Framework_TestCase
+{
+    public function testConstructor()
+    {
+        $profile = new Twig_Profiler_Profile('template', 'type', 'name');
+
+        $this->assertEquals('template', $profile->getTemplate());
+        $this->assertEquals('type', $profile->getType());
+        $this->assertEquals('name', $profile->getName());
+    }
+
+    public function testIsRoot()
+    {
+        $profile = new Twig_Profiler_Profile('template', Twig_Profiler_Profile::ROOT);
+        $this->assertTrue($profile->isRoot());
+
+        $profile = new Twig_Profiler_Profile('template', Twig_Profiler_Profile::TEMPLATE);
+        $this->assertFalse($profile->isRoot());
+    }
+
+    public function testIsTemplate()
+    {
+        $profile = new Twig_Profiler_Profile('template', Twig_Profiler_Profile::TEMPLATE);
+        $this->assertTrue($profile->isTemplate());
+
+        $profile = new Twig_Profiler_Profile('template', Twig_Profiler_Profile::ROOT);
+        $this->assertFalse($profile->isTemplate());
+    }
+
+    public function testIsBlock()
+    {
+        $profile = new Twig_Profiler_Profile('template', Twig_Profiler_Profile::BLOCK);
+        $this->assertTrue($profile->isBlock());
+
+        $profile = new Twig_Profiler_Profile('template', Twig_Profiler_Profile::ROOT);
+        $this->assertFalse($profile->isBlock());
+    }
+
+    public function testIsMacro()
+    {
+        $profile = new Twig_Profiler_Profile('template', Twig_Profiler_Profile::MACRO);
+        $this->assertTrue($profile->isMacro());
+
+        $profile = new Twig_Profiler_Profile('template', Twig_Profiler_Profile::ROOT);
+        $this->assertFalse($profile->isMacro());
+    }
+
+    public function testGetAddProfile()
+    {
+        $profile = new Twig_Profiler_Profile();
+        $profile->addProfile($a = new Twig_Profiler_Profile());
+        $profile->addProfile($b = new Twig_Profiler_Profile());
+
+        $this->assertSame(array($a, $b), $profile->getProfiles());
+        $this->assertSame(array($a, $b), iterator_to_array($profile));
+    }
+
+    public function testGetDuration()
+    {
+        $profile = new Twig_Profiler_Profile();
+        usleep(1);
+        $profile->leave();
+
+        $this->assertTrue($profile->getDuration() > 0, sprintf('Expected duration > 0, got: %f', $profile->getDuration()));
+    }
+
+    public function testSerialize()
+    {
+        $profile = new Twig_Profiler_Profile('template', 'type', 'name');
+        $profile1 = new Twig_Profiler_Profile('template1', 'type1', 'name1');
+        $profile->addProfile($profile1);
+        $profile->leave();
+        $profile1->leave();
+
+        $profile2 = unserialize(serialize($profile));
+        $profiles = $profile->getProfiles();
+        $this->assertCount(1, $profiles);
+        $profile3 = $profiles[0];
+
+        $this->assertEquals($profile->getTemplate(), $profile2->getTemplate());
+        $this->assertEquals($profile->getType(), $profile2->getType());
+        $this->assertEquals($profile->getName(), $profile2->getName());
+        $this->assertEquals($profile->getDuration(), $profile2->getDuration());
+
+        $this->assertEquals($profile1->getTemplate(), $profile3->getTemplate());
+        $this->assertEquals($profile1->getType(), $profile3->getType());
+        $this->assertEquals($profile1->getName(), $profile3->getName());
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/TemplateTest.php b/vendor/twig/twig/test/Twig/Tests/TemplateTest.php
new file mode 100644
index 000000000..f01466496
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/TemplateTest.php
@@ -0,0 +1,693 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+class Twig_Tests_TemplateTest extends PHPUnit_Framework_TestCase
+{
+    /**
+     * @expectedException LogicException
+     */
+    public function testDisplayBlocksAcceptTemplateOnlyAsBlocks()
+    {
+        $template = $this->getMockForAbstractClass('Twig_Template', array(), '', false);
+        $template->displayBlock('foo', array(), array('foo' => array(new stdClass(), 'foo')));
+    }
+
+    /**
+     * @dataProvider getAttributeExceptions
+     */
+    public function testGetAttributeExceptions($template, $message, $useExt)
+    {
+        $name = 'index_'.($useExt ? 1 : 0);
+        $templates = array(
+            $name => $template.$useExt, // appending $useExt makes the template content unique
+        );
+
+        $env = new Twig_Environment(new Twig_Loader_Array($templates), array('strict_variables' => true));
+        if (!$useExt) {
+            $env->addNodeVisitor(new CExtDisablingNodeVisitor());
+        }
+        $template = $env->loadTemplate($name);
+
+        $context = array(
+            'string' => 'foo',
+            'null' => null,
+            'empty_array' => array(),
+            'array' => array('foo' => 'foo'),
+            'array_access' => new Twig_TemplateArrayAccessObject(),
+            'magic_exception' => new Twig_TemplateMagicPropertyObjectWithException(),
+            'object' => new stdClass(),
+        );
+
+        try {
+            $template->render($context);
+            $this->fail('Accessing an invalid attribute should throw an exception.');
+        } catch (Twig_Error_Runtime $e) {
+            $this->assertSame(sprintf($message, $name), $e->getMessage());
+        }
+    }
+
+    public function getAttributeExceptions()
+    {
+        $tests = array(
+            array('{{ string["a"] }}', 'Impossible to access a key ("a") on a string variable ("foo") in "%s" at line 1', false),
+            array('{{ null["a"] }}', 'Impossible to access a key ("a") on a null variable in "%s" at line 1', false),
+            array('{{ empty_array["a"] }}', 'Key "a" does not exist as the array is empty in "%s" at line 1', false),
+            array('{{ array["a"] }}', 'Key "a" for array with keys "foo" does not exist in "%s" at line 1', false),
+            array('{{ array_access["a"] }}', 'Key "a" in object with ArrayAccess of class "Twig_TemplateArrayAccessObject" does not exist in "%s" at line 1', false),
+            array('{{ string.a }}', 'Impossible to access an attribute ("a") on a string variable ("foo") in "%s" at line 1', false),
+            array('{{ string.a() }}', 'Impossible to invoke a method ("a") on a string variable ("foo") in "%s" at line 1', false),
+            array('{{ null.a }}', 'Impossible to access an attribute ("a") on a null variable in "%s" at line 1', false),
+            array('{{ null.a() }}', 'Impossible to invoke a method ("a") on a null variable in "%s" at line 1', false),
+            array('{{ empty_array.a }}', 'Key "a" does not exist as the array is empty in "%s" at line 1', false),
+            array('{{ array.a }}', 'Key "a" for array with keys "foo" does not exist in "%s" at line 1', false),
+            array('{{ attribute(array, -10) }}', 'Key "-10" for array with keys "foo" does not exist in "%s" at line 1', false),
+            array('{{ array_access.a }}', 'Method "a" for object "Twig_TemplateArrayAccessObject" does not exist in "%s" at line 1', false),
+            array('{% from _self import foo %}{% macro foo(obj) %}{{ obj.missing_method() }}{% endmacro %}{{ foo(array_access) }}', 'Method "missing_method" for object "Twig_TemplateArrayAccessObject" does not exist in "%s" at line 1', false),
+            array('{{ magic_exception.test }}', 'An exception has been thrown during the rendering of a template ("Hey! Don\'t try to isset me!") in "%s" at line 1.', false),
+            array('{{ object["a"] }}', 'Impossible to access a key "a" on an object of class "stdClass" that does not implement ArrayAccess interface in "%s" at line 1', false),
+        );
+
+        if (function_exists('twig_template_get_attributes')) {
+            foreach (array_slice($tests, 0) as $test) {
+                $test[2] = true;
+                $tests[] = $test;
+            }
+        }
+
+        return $tests;
+    }
+
+    public function testGetSource()
+    {
+        $template = new Twig_TemplateTest(new Twig_Environment($this->getMock('Twig_LoaderInterface')), false);
+
+        $this->assertSame("<? */*bar*/ ?>\n", $template->getSource());
+    }
+
+    /**
+     * @dataProvider getGetAttributeWithSandbox
+     */
+    public function testGetAttributeWithSandbox($object, $item, $allowed, $useExt)
+    {
+        $twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+        $policy = new Twig_Sandbox_SecurityPolicy(array(), array(), array(/*method*/), array(/*prop*/), array());
+        $twig->addExtension(new Twig_Extension_Sandbox($policy, !$allowed));
+        $template = new Twig_TemplateTest($twig, $useExt);
+
+        try {
+            $template->getAttribute($object, $item, array(), 'any');
+
+            if (!$allowed) {
+                $this->fail();
+            }
+        } catch (Twig_Sandbox_SecurityError $e) {
+            if ($allowed) {
+                $this->fail();
+            }
+
+            $this->assertContains('is not allowed', $e->getMessage());
+        }
+    }
+
+    public function getGetAttributeWithSandbox()
+    {
+        $tests = array(
+            array(new Twig_TemplatePropertyObject(), 'defined', false, false),
+            array(new Twig_TemplatePropertyObject(), 'defined', true, false),
+            array(new Twig_TemplateMethodObject(), 'defined', false, false),
+            array(new Twig_TemplateMethodObject(), 'defined', true, false),
+        );
+
+        if (function_exists('twig_template_get_attributes')) {
+            foreach (array_slice($tests, 0) as $test) {
+                $test[3] = true;
+                $tests[] = $test;
+            }
+        }
+
+        return $tests;
+    }
+
+    /**
+     * @dataProvider getGetAttributeWithTemplateAsObject
+     */
+    public function testGetAttributeWithTemplateAsObject($useExt)
+    {
+        $template = new Twig_TemplateTest(new Twig_Environment($this->getMock('Twig_LoaderInterface')), $useExt);
+        $template1 = new Twig_TemplateTest(new Twig_Environment($this->getMock('Twig_LoaderInterface')), false);
+
+        $this->assertInstanceof('Twig_Markup', $template->getAttribute($template1, 'string'));
+        $this->assertEquals('some_string', $template->getAttribute($template1, 'string'));
+
+        $this->assertInstanceof('Twig_Markup', $template->getAttribute($template1, 'true'));
+        $this->assertEquals('1', $template->getAttribute($template1, 'true'));
+
+        $this->assertInstanceof('Twig_Markup', $template->getAttribute($template1, 'zero'));
+        $this->assertEquals('0', $template->getAttribute($template1, 'zero'));
+
+        $this->assertNotInstanceof('Twig_Markup', $template->getAttribute($template1, 'empty'));
+        $this->assertSame('', $template->getAttribute($template1, 'empty'));
+
+        $this->assertFalse($template->getAttribute($template1, 'env', array(), Twig_Template::ANY_CALL, true));
+        $this->assertFalse($template->getAttribute($template1, 'environment', array(), Twig_Template::ANY_CALL, true));
+        $this->assertFalse($template->getAttribute($template1, 'getEnvironment', array(), Twig_Template::METHOD_CALL, true));
+        $this->assertFalse($template->getAttribute($template1, 'displayWithErrorHandling', array(), Twig_Template::METHOD_CALL, true));
+    }
+
+    public function getGetAttributeWithTemplateAsObject()
+    {
+        $bools = array(
+            array(false),
+        );
+
+        if (function_exists('twig_template_get_attributes')) {
+            $bools[] = array(true);
+        }
+
+        return $bools;
+    }
+
+    /**
+     * @dataProvider getTestsDependingOnExtensionAvailability
+     */
+    public function testGetAttributeOnArrayWithConfusableKey($useExt = false)
+    {
+        $template = new Twig_TemplateTest(
+            new Twig_Environment($this->getMock('Twig_LoaderInterface')),
+            $useExt
+        );
+
+        $array = array('Zero', 'One', -1 => 'MinusOne', '' => 'EmptyString', '1.5' => 'FloatButString', '01' => 'IntegerButStringWithLeadingZeros');
+
+        $this->assertSame('Zero', $array[false]);
+        $this->assertSame('One', $array[true]);
+        $this->assertSame('One', $array[1.5]);
+        $this->assertSame('One', $array['1']);
+        $this->assertSame('MinusOne', $array[-1.5]);
+        $this->assertSame('FloatButString', $array['1.5']);
+        $this->assertSame('IntegerButStringWithLeadingZeros', $array['01']);
+        $this->assertSame('EmptyString', $array[null]);
+
+        $this->assertSame('Zero', $template->getAttribute($array, false), 'false is treated as 0 when accessing an array (equals PHP behavior)');
+        $this->assertSame('One', $template->getAttribute($array, true), 'true is treated as 1 when accessing an array (equals PHP behavior)');
+        $this->assertSame('One', $template->getAttribute($array, 1.5), 'float is casted to int when accessing an array (equals PHP behavior)');
+        $this->assertSame('One', $template->getAttribute($array, '1'), '"1" is treated as integer 1 when accessing an array (equals PHP behavior)');
+        $this->assertSame('MinusOne', $template->getAttribute($array, -1.5), 'negative float is casted to int when accessing an array (equals PHP behavior)');
+        $this->assertSame('FloatButString', $template->getAttribute($array, '1.5'), '"1.5" is treated as-is when accessing an array (equals PHP behavior)');
+        $this->assertSame('IntegerButStringWithLeadingZeros', $template->getAttribute($array, '01'), '"01" is treated as-is when accessing an array (equals PHP behavior)');
+        $this->assertSame('EmptyString', $template->getAttribute($array, null), 'null is treated as "" when accessing an array (equals PHP behavior)');
+    }
+
+    public function getTestsDependingOnExtensionAvailability()
+    {
+        if (function_exists('twig_template_get_attributes')) {
+            return array(array(false), array(true));
+        }
+
+        return array(array(false));
+    }
+
+    /**
+     * @dataProvider getGetAttributeTests
+     */
+    public function testGetAttribute($defined, $value, $object, $item, $arguments, $type, $useExt = false)
+    {
+        $template = new Twig_TemplateTest(new Twig_Environment($this->getMock('Twig_LoaderInterface')), $useExt);
+
+        $this->assertEquals($value, $template->getAttribute($object, $item, $arguments, $type));
+    }
+
+    /**
+     * @dataProvider getGetAttributeTests
+     */
+    public function testGetAttributeStrict($defined, $value, $object, $item, $arguments, $type, $useExt = false, $exceptionMessage = null)
+    {
+        $template = new Twig_TemplateTest(new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('strict_variables' => true)), $useExt);
+
+        if ($defined) {
+            $this->assertEquals($value, $template->getAttribute($object, $item, $arguments, $type));
+        } else {
+            try {
+                $this->assertEquals($value, $template->getAttribute($object, $item, $arguments, $type));
+
+                throw new Exception('Expected Twig_Error_Runtime exception.');
+            } catch (Twig_Error_Runtime $e) {
+                if (null !== $exceptionMessage) {
+                    $this->assertSame($exceptionMessage, $e->getMessage());
+                }
+            }
+        }
+    }
+
+    /**
+     * @dataProvider getGetAttributeTests
+     */
+    public function testGetAttributeDefined($defined, $value, $object, $item, $arguments, $type, $useExt = false)
+    {
+        $template = new Twig_TemplateTest(new Twig_Environment($this->getMock('Twig_LoaderInterface')), $useExt);
+
+        $this->assertEquals($defined, $template->getAttribute($object, $item, $arguments, $type, true));
+    }
+
+    /**
+     * @dataProvider getGetAttributeTests
+     */
+    public function testGetAttributeDefinedStrict($defined, $value, $object, $item, $arguments, $type, $useExt = false)
+    {
+        $template = new Twig_TemplateTest(new Twig_Environment($this->getMock('Twig_LoaderInterface'), array('strict_variables' => true)), $useExt);
+
+        $this->assertEquals($defined, $template->getAttribute($object, $item, $arguments, $type, true));
+    }
+
+    /**
+     * @dataProvider getTestsDependingOnExtensionAvailability
+     */
+    public function testGetAttributeCallExceptions($useExt = false)
+    {
+        $template = new Twig_TemplateTest(new Twig_Environment($this->getMock('Twig_LoaderInterface')), $useExt);
+
+        $object = new Twig_TemplateMagicMethodExceptionObject();
+
+        $this->assertNull($template->getAttribute($object, 'foo'));
+    }
+
+    public function getGetAttributeTests()
+    {
+        $array = array(
+            'defined' => 'defined',
+            'zero' => 0,
+            'null' => null,
+            '1' => 1,
+            'bar' => true,
+            '09' => '09',
+            '+4' => '+4',
+        );
+
+        $objectArray = new Twig_TemplateArrayAccessObject();
+        $stdObject = (object) $array;
+        $magicPropertyObject = new Twig_TemplateMagicPropertyObject();
+        $propertyObject = new Twig_TemplatePropertyObject();
+        $propertyObject1 = new Twig_TemplatePropertyObjectAndIterator();
+        $propertyObject2 = new Twig_TemplatePropertyObjectAndArrayAccess();
+        $propertyObject3 = new Twig_TemplatePropertyObjectDefinedWithUndefinedValue();
+        $methodObject = new Twig_TemplateMethodObject();
+        $magicMethodObject = new Twig_TemplateMagicMethodObject();
+
+        $anyType = Twig_Template::ANY_CALL;
+        $methodType = Twig_Template::METHOD_CALL;
+        $arrayType = Twig_Template::ARRAY_CALL;
+
+        $basicTests = array(
+            // array(defined, value, property to fetch)
+            array(true,  'defined', 'defined'),
+            array(false, null,      'undefined'),
+            array(false, null,      'protected'),
+            array(true,  0,         'zero'),
+            array(true,  1,         1),
+            array(true,  1,         1.0),
+            array(true,  null,      'null'),
+            array(true,  true,      'bar'),
+            array(true,  '09',      '09'),
+            array(true,  '+4',      '+4'),
+        );
+        $testObjects = array(
+            // array(object, type of fetch)
+            array($array,               $arrayType),
+            array($objectArray,         $arrayType),
+            array($stdObject,           $anyType),
+            array($magicPropertyObject, $anyType),
+            array($methodObject,        $methodType),
+            array($methodObject,        $anyType),
+            array($propertyObject,      $anyType),
+            array($propertyObject1,     $anyType),
+            array($propertyObject2,     $anyType),
+        );
+
+        $tests = array();
+        foreach ($testObjects as $testObject) {
+            foreach ($basicTests as $test) {
+                // properties cannot be numbers
+                if (($testObject[0] instanceof stdClass || $testObject[0] instanceof Twig_TemplatePropertyObject) && is_numeric($test[2])) {
+                    continue;
+                }
+
+                if ('+4' === $test[2] && $methodObject === $testObject[0]) {
+                    continue;
+                }
+
+                $tests[] = array($test[0], $test[1], $testObject[0], $test[2], array(), $testObject[1]);
+            }
+        }
+
+        // additional properties tests
+        $tests = array_merge($tests, array(
+            array(true, null, $propertyObject3, 'foo', array(), $anyType),
+        ));
+
+        // additional method tests
+        $tests = array_merge($tests, array(
+            array(true, 'defined', $methodObject, 'defined',    array(), $methodType),
+            array(true, 'defined', $methodObject, 'DEFINED',    array(), $methodType),
+            array(true, 'defined', $methodObject, 'getDefined', array(), $methodType),
+            array(true, 'defined', $methodObject, 'GETDEFINED', array(), $methodType),
+            array(true, 'static',  $methodObject, 'static',     array(), $methodType),
+            array(true, 'static',  $methodObject, 'getStatic',  array(), $methodType),
+
+            array(true, '__call_undefined', $magicMethodObject, 'undefined', array(), $methodType),
+            array(true, '__call_UNDEFINED', $magicMethodObject, 'UNDEFINED', array(), $methodType),
+        ));
+
+        // add the same tests for the any type
+        foreach ($tests as $test) {
+            if ($anyType !== $test[5]) {
+                $test[5] = $anyType;
+                $tests[] = $test;
+            }
+        }
+
+        $methodAndPropObject = new Twig_TemplateMethodAndPropObject();
+
+        // additional method tests
+        $tests = array_merge($tests, array(
+            array(true, 'a', $methodAndPropObject, 'a', array(), $anyType),
+            array(true, 'a', $methodAndPropObject, 'a', array(), $methodType),
+            array(false, null, $methodAndPropObject, 'a', array(), $arrayType),
+
+            array(true, 'b_prop', $methodAndPropObject, 'b', array(), $anyType),
+            array(true, 'b', $methodAndPropObject, 'B', array(), $anyType),
+            array(true, 'b', $methodAndPropObject, 'b', array(), $methodType),
+            array(true, 'b', $methodAndPropObject, 'B', array(), $methodType),
+            array(false, null, $methodAndPropObject, 'b', array(), $arrayType),
+
+            array(false, null, $methodAndPropObject, 'c', array(), $anyType),
+            array(false, null, $methodAndPropObject, 'c', array(), $methodType),
+            array(false, null, $methodAndPropObject, 'c', array(), $arrayType),
+
+        ));
+
+        // tests when input is not an array or object
+        $tests = array_merge($tests, array(
+            array(false, null, 42, 'a', array(), $anyType, false, 'Impossible to access an attribute ("a") on a integer variable ("42")'),
+            array(false, null, 'string', 'a', array(), $anyType, false, 'Impossible to access an attribute ("a") on a string variable ("string")'),
+            array(false, null, array(), 'a', array(), $anyType, false, 'Key "a" does not exist as the array is empty'),
+        ));
+
+        // add twig_template_get_attributes tests
+
+        if (function_exists('twig_template_get_attributes')) {
+            foreach (array_slice($tests, 0) as $test) {
+                $test = array_pad($test, 7, null);
+                $test[6] = true;
+                $tests[] = $test;
+            }
+        }
+
+        return $tests;
+    }
+}
+
+class Twig_TemplateTest extends Twig_Template
+{
+    protected $useExtGetAttribute = false;
+
+    public function __construct(Twig_Environment $env, $useExtGetAttribute = false)
+    {
+        parent::__construct($env);
+        $this->useExtGetAttribute = $useExtGetAttribute;
+        self::$cache = array();
+    }
+
+    public function getZero()
+    {
+        return 0;
+    }
+
+    public function getEmpty()
+    {
+        return '';
+    }
+
+    public function getString()
+    {
+        return 'some_string';
+    }
+
+    public function getTrue()
+    {
+        return true;
+    }
+
+    public function getTemplateName()
+    {
+    }
+
+    public function getDebugInfo()
+    {
+        return array();
+    }
+
+    protected function doGetParent(array $context)
+    {
+    }
+
+    protected function doDisplay(array $context, array $blocks = array())
+    {
+    }
+
+    public function getAttribute($object, $item, array $arguments = array(), $type = Twig_Template::ANY_CALL, $isDefinedTest = false, $ignoreStrictCheck = false)
+    {
+        if ($this->useExtGetAttribute) {
+            return twig_template_get_attributes($this, $object, $item, $arguments, $type, $isDefinedTest, $ignoreStrictCheck);
+        } else {
+            return parent::getAttribute($object, $item, $arguments, $type, $isDefinedTest, $ignoreStrictCheck);
+        }
+    }
+}
+/* <? *//* *bar*//*  ?>*/
+/* */
+
+class Twig_TemplateArrayAccessObject implements ArrayAccess
+{
+    protected $protected = 'protected';
+
+    public $attributes = array(
+        'defined' => 'defined',
+        'zero' => 0,
+        'null' => null,
+        '1' => 1,
+        'bar' => true,
+        '09' => '09',
+        '+4' => '+4',
+    );
+
+    public function offsetExists($name)
+    {
+        return array_key_exists($name, $this->attributes);
+    }
+
+    public function offsetGet($name)
+    {
+        return array_key_exists($name, $this->attributes) ? $this->attributes[$name] : null;
+    }
+
+    public function offsetSet($name, $value)
+    {
+    }
+
+    public function offsetUnset($name)
+    {
+    }
+}
+
+class Twig_TemplateMagicPropertyObject
+{
+    public $defined = 'defined';
+
+    public $attributes = array(
+        'zero' => 0,
+        'null' => null,
+        '1' => 1,
+        'bar' => true,
+        '09' => '09',
+        '+4' => '+4',
+    );
+
+    protected $protected = 'protected';
+
+    public function __isset($name)
+    {
+        return array_key_exists($name, $this->attributes);
+    }
+
+    public function __get($name)
+    {
+        return array_key_exists($name, $this->attributes) ? $this->attributes[$name] : null;
+    }
+}
+
+class Twig_TemplateMagicPropertyObjectWithException
+{
+    public function __isset($key)
+    {
+        throw new Exception('Hey! Don\'t try to isset me!');
+    }
+}
+
+class Twig_TemplatePropertyObject
+{
+    public $defined = 'defined';
+    public $zero = 0;
+    public $null = null;
+    public $bar = true;
+
+    protected $protected = 'protected';
+}
+
+class Twig_TemplatePropertyObjectAndIterator extends Twig_TemplatePropertyObject implements IteratorAggregate
+{
+    public function getIterator()
+    {
+        return new ArrayIterator(array('foo', 'bar'));
+    }
+}
+
+class Twig_TemplatePropertyObjectAndArrayAccess extends Twig_TemplatePropertyObject implements ArrayAccess
+{
+    private $data = array();
+
+    public function offsetExists($offset)
+    {
+        return array_key_exists($offset, $this->data);
+    }
+
+    public function offsetGet($offset)
+    {
+        return $this->offsetExists($offset) ? $this->data[$offset] : 'n/a';
+    }
+
+    public function offsetSet($offset, $value)
+    {
+    }
+
+    public function offsetUnset($offset)
+    {
+    }
+}
+
+class Twig_TemplatePropertyObjectDefinedWithUndefinedValue
+{
+    public $foo;
+
+    public function __construct()
+    {
+        $this->foo = @$notExist;
+    }
+}
+
+class Twig_TemplateMethodObject
+{
+    public function getDefined()
+    {
+        return 'defined';
+    }
+
+    public function get1()
+    {
+        return 1;
+    }
+
+    public function get09()
+    {
+        return '09';
+    }
+
+    public function getZero()
+    {
+        return 0;
+    }
+
+    public function getNull()
+    {
+    }
+
+    public function isBar()
+    {
+        return true;
+    }
+
+    protected function getProtected()
+    {
+        return 'protected';
+    }
+
+    public static function getStatic()
+    {
+        return 'static';
+    }
+}
+
+class Twig_TemplateMethodAndPropObject
+{
+    private $a = 'a_prop';
+    public function getA()
+    {
+        return 'a';
+    }
+
+    public $b = 'b_prop';
+    public function getB()
+    {
+        return 'b';
+    }
+
+    private $c = 'c_prop';
+    private function getC()
+    {
+        return 'c';
+    }
+}
+
+class Twig_TemplateMagicMethodObject
+{
+    public function __call($method, $arguments)
+    {
+        return '__call_'.$method;
+    }
+}
+
+class Twig_TemplateMagicMethodExceptionObject
+{
+    public function __call($method, $arguments)
+    {
+        throw new BadMethodCallException(sprintf('Unknown method "%s".', $method));
+    }
+}
+
+class CExtDisablingNodeVisitor implements Twig_NodeVisitorInterface
+{
+    public function enterNode(Twig_NodeInterface $node, Twig_Environment $env)
+    {
+        if ($node instanceof Twig_Node_Expression_GetAttr) {
+            $node->setAttribute('disable_c_ext', true);
+        }
+
+        return $node;
+    }
+
+    public function leaveNode(Twig_NodeInterface $node, Twig_Environment $env)
+    {
+        return $node;
+    }
+
+    public function getPriority()
+    {
+        return 0;
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/TokenStreamTest.php b/vendor/twig/twig/test/Twig/Tests/TokenStreamTest.php
new file mode 100644
index 000000000..5ac3a286f
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/TokenStreamTest.php
@@ -0,0 +1,70 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Tests_TokenStreamTest extends PHPUnit_Framework_TestCase
+{
+    protected static $tokens;
+
+    protected function setUp()
+    {
+        self::$tokens = array(
+            new Twig_Token(Twig_Token::TEXT_TYPE, 1, 1),
+            new Twig_Token(Twig_Token::TEXT_TYPE, 2, 1),
+            new Twig_Token(Twig_Token::TEXT_TYPE, 3, 1),
+            new Twig_Token(Twig_Token::TEXT_TYPE, 4, 1),
+            new Twig_Token(Twig_Token::TEXT_TYPE, 5, 1),
+            new Twig_Token(Twig_Token::TEXT_TYPE, 6, 1),
+            new Twig_Token(Twig_Token::TEXT_TYPE, 7, 1),
+            new Twig_Token(Twig_Token::EOF_TYPE, 0, 1),
+        );
+    }
+
+    public function testNext()
+    {
+        $stream = new Twig_TokenStream(self::$tokens);
+        $repr = array();
+        while (!$stream->isEOF()) {
+            $token = $stream->next();
+
+            $repr[] = $token->getValue();
+        }
+        $this->assertEquals('1, 2, 3, 4, 5, 6, 7', implode(', ', $repr), '->next() advances the pointer and returns the current token');
+    }
+
+    /**
+     * @expectedException Twig_Error_Syntax
+     * @expectedMessage   Unexpected end of template
+     */
+    public function testEndOfTemplateNext()
+    {
+        $stream = new Twig_TokenStream(array(
+            new Twig_Token(Twig_Token::BLOCK_START_TYPE, 1, 1),
+        ));
+        while (!$stream->isEOF()) {
+            $stream->next();
+        }
+    }
+
+    /**
+     * @expectedException Twig_Error_Syntax
+     * @expectedMessage   Unexpected end of template
+     */
+    public function testEndOfTemplateLook()
+    {
+        $stream = new Twig_TokenStream(array(
+            new Twig_Token(Twig_Token::BLOCK_START_TYPE, 1, 1),
+        ));
+        while (!$stream->isEOF()) {
+            $stream->look();
+            $stream->next();
+        }
+    }
+}
diff --git a/vendor/twig/twig/test/Twig/Tests/escapingTest.php b/vendor/twig/twig/test/Twig/Tests/escapingTest.php
new file mode 100644
index 000000000..abf623643
--- /dev/null
+++ b/vendor/twig/twig/test/Twig/Tests/escapingTest.php
@@ -0,0 +1,320 @@
+<?php
+
+/**
+ * This class is adapted from code coming from Zend Framework.
+ *
+ * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license   http://framework.zend.com/license/new-bsd New BSD License
+ */
+class Twig_Test_EscapingTest extends PHPUnit_Framework_TestCase
+{
+    /**
+     * All character encodings supported by htmlspecialchars().
+     */
+    protected $htmlSpecialChars = array(
+        '\'' => '&#039;',
+        '"' => '&quot;',
+        '<' => '&lt;',
+        '>' => '&gt;',
+        '&' => '&amp;',
+    );
+
+    protected $htmlAttrSpecialChars = array(
+        '\'' => '&#x27;',
+        /* Characters beyond ASCII value 255 to unicode escape */
+        'Ā' => '&#x0100;',
+        /* Immune chars excluded */
+        ',' => ',',
+        '.' => '.',
+        '-' => '-',
+        '_' => '_',
+        /* Basic alnums excluded */
+        'a' => 'a',
+        'A' => 'A',
+        'z' => 'z',
+        'Z' => 'Z',
+        '0' => '0',
+        '9' => '9',
+        /* Basic control characters and null */
+        "\r" => '&#x0D;',
+        "\n" => '&#x0A;',
+        "\t" => '&#x09;',
+        "\0" => '&#xFFFD;', // should use Unicode replacement char
+        /* Encode chars as named entities where possible */
+        '<' => '&lt;',
+        '>' => '&gt;',
+        '&' => '&amp;',
+        '"' => '&quot;',
+        /* Encode spaces for quoteless attribute protection */
+        ' ' => '&#x20;',
+    );
+
+    protected $jsSpecialChars = array(
+        /* HTML special chars - escape without exception to hex */
+        '<' => '\\x3C',
+        '>' => '\\x3E',
+        '\'' => '\\x27',
+        '"' => '\\x22',
+        '&' => '\\x26',
+        /* Characters beyond ASCII value 255 to unicode escape */
+        'Ā' => '\\u0100',
+        /* Immune chars excluded */
+        ',' => ',',
+        '.' => '.',
+        '_' => '_',
+        /* Basic alnums excluded */
+        'a' => 'a',
+        'A' => 'A',
+        'z' => 'z',
+        'Z' => 'Z',
+        '0' => '0',
+        '9' => '9',
+        /* Basic control characters and null */
+        "\r" => '\\x0D',
+        "\n" => '\\x0A',
+        "\t" => '\\x09',
+        "\0" => '\\x00',
+        /* Encode spaces for quoteless attribute protection */
+        ' ' => '\\x20',
+    );
+
+    protected $urlSpecialChars = array(
+        /* HTML special chars - escape without exception to percent encoding */
+        '<' => '%3C',
+        '>' => '%3E',
+        '\'' => '%27',
+        '"' => '%22',
+        '&' => '%26',
+        /* Characters beyond ASCII value 255 to hex sequence */
+        'Ā' => '%C4%80',
+        /* Punctuation and unreserved check */
+        ',' => '%2C',
+        '.' => '.',
+        '_' => '_',
+        '-' => '-',
+        ':' => '%3A',
+        ';' => '%3B',
+        '!' => '%21',
+        /* Basic alnums excluded */
+        'a' => 'a',
+        'A' => 'A',
+        'z' => 'z',
+        'Z' => 'Z',
+        '0' => '0',
+        '9' => '9',
+        /* Basic control characters and null */
+        "\r" => '%0D',
+        "\n" => '%0A',
+        "\t" => '%09',
+        "\0" => '%00',
+        /* PHP quirks from the past */
+        ' ' => '%20',
+        '~' => '~',
+        '+' => '%2B',
+    );
+
+    protected $cssSpecialChars = array(
+        /* HTML special chars - escape without exception to hex */
+        '<' => '\\3C ',
+        '>' => '\\3E ',
+        '\'' => '\\27 ',
+        '"' => '\\22 ',
+        '&' => '\\26 ',
+        /* Characters beyond ASCII value 255 to unicode escape */
+        'Ā' => '\\100 ',
+        /* Immune chars excluded */
+        ',' => '\\2C ',
+        '.' => '\\2E ',
+        '_' => '\\5F ',
+        /* Basic alnums excluded */
+        'a' => 'a',
+        'A' => 'A',
+        'z' => 'z',
+        'Z' => 'Z',
+        '0' => '0',
+        '9' => '9',
+        /* Basic control characters and null */
+        "\r" => '\\D ',
+        "\n" => '\\A ',
+        "\t" => '\\9 ',
+        "\0" => '\\0 ',
+        /* Encode spaces for quoteless attribute protection */
+        ' ' => '\\20 ',
+    );
+
+    protected $env;
+
+    protected function setUp()
+    {
+        $this->env = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
+    }
+
+    public function testHtmlEscapingConvertsSpecialChars()
+    {
+        foreach ($this->htmlSpecialChars as $key => $value) {
+            $this->assertEquals($value, twig_escape_filter($this->env, $key, 'html'), 'Failed to escape: '.$key);
+        }
+    }
+
+    public function testHtmlAttributeEscapingConvertsSpecialChars()
+    {
+        foreach ($this->htmlAttrSpecialChars as $key => $value) {
+            $this->assertEquals($value, twig_escape_filter($this->env, $key, 'html_attr'), 'Failed to escape: '.$key);
+        }
+    }
+
+    public function testJavascriptEscapingConvertsSpecialChars()
+    {
+        foreach ($this->jsSpecialChars as $key => $value) {
+            $this->assertEquals($value, twig_escape_filter($this->env, $key, 'js'), 'Failed to escape: '.$key);
+        }
+    }
+
+    public function testJavascriptEscapingReturnsStringIfZeroLength()
+    {
+        $this->assertEquals('', twig_escape_filter($this->env, '', 'js'));
+    }
+
+    public function testJavascriptEscapingReturnsStringIfContainsOnlyDigits()
+    {
+        $this->assertEquals('123', twig_escape_filter($this->env, '123', 'js'));
+    }
+
+    public function testCssEscapingConvertsSpecialChars()
+    {
+        foreach ($this->cssSpecialChars as $key => $value) {
+            $this->assertEquals($value, twig_escape_filter($this->env, $key, 'css'), 'Failed to escape: '.$key);
+        }
+    }
+
+    public function testCssEscapingReturnsStringIfZeroLength()
+    {
+        $this->assertEquals('', twig_escape_filter($this->env, '', 'css'));
+    }
+
+    public function testCssEscapingReturnsStringIfContainsOnlyDigits()
+    {
+        $this->assertEquals('123', twig_escape_filter($this->env, '123', 'css'));
+    }
+
+    public function testUrlEscapingConvertsSpecialChars()
+    {
+        foreach ($this->urlSpecialChars as $key => $value) {
+            $this->assertEquals($value, twig_escape_filter($this->env, $key, 'url'), 'Failed to escape: '.$key);
+        }
+    }
+
+    /**
+     * Range tests to confirm escaped range of characters is within OWASP recommendation.
+     */
+
+    /**
+     * Only testing the first few 2 ranges on this prot. function as that's all these
+     * other range tests require.
+     */
+    public function testUnicodeCodepointConversionToUtf8()
+    {
+        $expected = ' ~ޙ';
+        $codepoints = array(0x20, 0x7e, 0x799);
+        $result = '';
+        foreach ($codepoints as $value) {
+            $result .= $this->codepointToUtf8($value);
+        }
+        $this->assertEquals($expected, $result);
+    }
+
+    /**
+     * Convert a Unicode Codepoint to a literal UTF-8 character.
+     *
+     * @param int $codepoint Unicode codepoint in hex notation
+     *
+     * @return string UTF-8 literal string
+     */
+    protected function codepointToUtf8($codepoint)
+    {
+        if ($codepoint < 0x80) {
+            return chr($codepoint);
+        }
+        if ($codepoint < 0x800) {
+            return chr($codepoint >> 6 & 0x3f | 0xc0)
+                .chr($codepoint & 0x3f | 0x80);
+        }
+        if ($codepoint < 0x10000) {
+            return chr($codepoint >> 12 & 0x0f | 0xe0)
+                .chr($codepoint >> 6 & 0x3f | 0x80)
+                .chr($codepoint & 0x3f | 0x80);
+        }
+        if ($codepoint < 0x110000) {
+            return chr($codepoint >> 18 & 0x07 | 0xf0)
+                .chr($codepoint >> 12 & 0x3f | 0x80)
+                .chr($codepoint >> 6 & 0x3f | 0x80)
+                .chr($codepoint & 0x3f | 0x80);
+        }
+        throw new Exception('Codepoint requested outside of Unicode range');
+    }
+
+    public function testJavascriptEscapingEscapesOwaspRecommendedRanges()
+    {
+        $immune = array(',', '.', '_'); // Exceptions to escaping ranges
+        for ($chr = 0; $chr < 0xFF; ++$chr) {
+            if ($chr >= 0x30 && $chr <= 0x39
+            || $chr >= 0x41 && $chr <= 0x5A
+            || $chr >= 0x61 && $chr <= 0x7A) {
+                $literal = $this->codepointToUtf8($chr);
+                $this->assertEquals($literal, twig_escape_filter($this->env, $literal, 'js'));
+            } else {
+                $literal = $this->codepointToUtf8($chr);
+                if (in_array($literal, $immune)) {
+                    $this->assertEquals($literal, twig_escape_filter($this->env, $literal, 'js'));
+                } else {
+                    $this->assertNotEquals(
+                        $literal,
+                        twig_escape_filter($this->env, $literal, 'js'),
+                        "$literal should be escaped!");
+                }
+            }
+        }
+    }
+
+    public function testHtmlAttributeEscapingEscapesOwaspRecommendedRanges()
+    {
+        $immune = array(',', '.', '-', '_'); // Exceptions to escaping ranges
+        for ($chr = 0; $chr < 0xFF; ++$chr) {
+            if ($chr >= 0x30 && $chr <= 0x39
+            || $chr >= 0x41 && $chr <= 0x5A
+            || $chr >= 0x61 && $chr <= 0x7A) {
+                $literal = $this->codepointToUtf8($chr);
+                $this->assertEquals($literal, twig_escape_filter($this->env, $literal, 'html_attr'));
+            } else {
+                $literal = $this->codepointToUtf8($chr);
+                if (in_array($literal, $immune)) {
+                    $this->assertEquals($literal, twig_escape_filter($this->env, $literal, 'html_attr'));
+                } else {
+                    $this->assertNotEquals(
+                        $literal,
+                        twig_escape_filter($this->env, $literal, 'html_attr'),
+                        "$literal should be escaped!");
+                }
+            }
+        }
+    }
+
+    public function testCssEscapingEscapesOwaspRecommendedRanges()
+    {
+        // CSS has no exceptions to escaping ranges
+        for ($chr = 0; $chr < 0xFF; ++$chr) {
+            if ($chr >= 0x30 && $chr <= 0x39
+            || $chr >= 0x41 && $chr <= 0x5A
+            || $chr >= 0x61 && $chr <= 0x7A) {
+                $literal = $this->codepointToUtf8($chr);
+                $this->assertEquals($literal, twig_escape_filter($this->env, $literal, 'css'));
+            } else {
+                $literal = $this->codepointToUtf8($chr);
+                $this->assertNotEquals(
+                    $literal,
+                    twig_escape_filter($this->env, $literal, 'css'),
+                    "$literal should be escaped!");
+            }
+        }
+    }
+}
diff --git a/vendor/twig/twig/test/bootstrap.php b/vendor/twig/twig/test/bootstrap.php
new file mode 100644
index 000000000..aecb976f7
--- /dev/null
+++ b/vendor/twig/twig/test/bootstrap.php
@@ -0,0 +1,13 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+require_once dirname(__FILE__).'/../lib/Twig/Autoloader.php';
+Twig_Autoloader::register(true);