fix(phone data): unencode HTML entities

AngularJS will deal with encoding entities when displaying text so we don't
need them to be encoded in the "data store"

Closes angular#185

app/phones/dell-venue.json

@@ -5,7 +5,7 @@
         "ui": "Dell Stage"
     }, 
     "availability": [
-        "AT&T,", 
+        "AT&T,", 
         "KT,", 
         "T-Mobile"
     ], 

app/phones/motorola-atrix-4g.json

@@ -5,7 +5,7 @@
         "ui": "MOTOBLUR"
     }, 
     "availability": [
-        "AT&T"
+        "AT&T"
     ], 
     "battery": {
         "standbyTime": "400 hours", 

app/phones/motorola-bravo-with-motoblur.json

@@ -5,7 +5,7 @@
         "ui": "MOTOBLUR\u2122"
     }, 
     "availability": [
-        "AT&T"
+        "AT&T"
     ], 
     "battery": {
         "standbyTime": "216 hours", 

app/phones/phones.json

@@ -15,7 +15,7 @@
     }, 
     {
         "age": 2, 
-        "carrier": "AT&T", 
+        "carrier": "AT&T", 
         "id": "motorola-atrix-4g", 
         "imageUrl": "img/phones/motorola-atrix-4g.0.jpg", 
         "name": "MOTOROLA ATRIX\u2122 4G", 
@@ -93,7 +93,7 @@
     }, 
     {
         "age": 12, 
-        "carrier": "AT&T", 
+        "carrier": "AT&T", 
         "id": "motorola-bravo-with-motoblur", 
         "imageUrl": "img/phones/motorola-bravo-with-motoblur.0.jpg", 
         "name": "MOTOROLA BRAVO\u2122 with MOTOBLUR\u2122", 

app/phones/samsung-galaxy-tab.json

@@ -5,7 +5,7 @@
         "ui": "TouchWiz"
     }, 
     "availability": [
-        "AT&T,", 
+        "AT&T,", 
         "Sprint,", 
         "T-Mobile,", 
         "Verizon"
@@ -24,7 +24,7 @@
     }, 
     "connectivity": {
         "bluetooth": "Bluetooth 3.0", 
-        "cell": "AT&T: GSM/EDGE : 850/900/1800/1900; 3G : 850/1900/2100<p>\r\n\r\nSprint: CDMA : 850/1900MHz<p>\r\n\r\nT-Mobile: GSM/EDGE : 850/900/1800/1900; 3G : 1700/1900<p>\r\n\r\nVerizon: CDMA : 800MHz/1900MHz", 
+        "cell": "AT&T: GSM/EDGE : 850/900/1800/1900; 3G : 850/1900/2100\r\n\r\nSprint: CDMA : 850/1900MHz\r\n\r\nT-Mobile: GSM/EDGE : 850/900/1800/1900; 3G : 1700/1900\r\n\r\nVerizon: CDMA : 800MHz/1900MHz", 
         "gps": true, 
         "infrared": false, 
         "wifi": "802.11 b/g/n"