Do minification with Grunt + Uglify.

Fixes kriskowal#305, hopefully. And obviates the dependency on Google Closure, which is great.

CONTRIBUTING.md

@@ -1,12 +1,12 @@
 
 For pull requests:
 
--   Be consistent with prevelant style and design decisions.
+-   Be consistent with prevalent style and design decisions.
 -   Add a Jasmine spec to `specs/q-spec.js`.
 -   Use `npm test` to avoid regressions.
 -   Run tests in `q-spec/run.html` in as many supported browsers as you
     can find the will to deal with.
--   You do not need to build minified versions.
+-   Do not build minified versions; we do this each release.
 -   If you would be so kind, add a note to `CHANGES.md` in an
     appropriate section:
 
@@ -21,23 +21,15 @@ For releases:
 -   Run tests in `q-spec/run.html` in a representative sample of every
     browser under the sun.
 -   Run `npm run cover` and make sure you're happy with the results.
--   Arrange for the Google Closure Compiler to be available as a
-    `closure` command then run `source minify` to build `q.min.js` and
-    `q.min.js.gz` and commit with `Minify`.
-
-    ```bash
-    #!/bin/bash
-    java -jar `which closure.jar` $@
-    ```
-
--   Note the size of `q.min.js.gz` in `README.md` if it has changed to 1
-    significant digit.
+-   Run `npm run minify` and be sure to commit the resulting `q.min.js`.
+-   Note the Gzipped size output by the previous command, and update
+    `README.md` if it has changed to 1 significant digit.
 -   Stash any local changes.
 -   Update `CHANGES.md` to reflect all changes in the differences
     between `HEAD` and the previous tagged version.  Give credit where
     credit is due.
--   Update `README.md` to address all new, non-expiermental features.
--   Update the API reference on the Wiki to reflect all non-expiermental
+-   Update `README.md` to address all new, non-experimental features.
+-   Update the API reference on the Wiki to reflect all non-experimental
     features.
 -   Use `npm version major|minor|patch` to update `package.json`,
     commit, and tag the new version.

Gruntfile.js

@@ -0,0 +1,20 @@
+"use strict";
+
+module.exports = function (grunt) {
+    grunt.loadNpmTasks("grunt-contrib-uglify");
+
+    grunt.initConfig({
+        uglify: {
+            options: {
+                report: "gzip"
+            },
+            dist: {
+                files: {
+                    "q.min.js": ["q.js"]
+                }
+            }
+        }
+    });
+
+    grunt.registerTask("default", ["uglify"]);
+};

README.md

@@ -66,7 +66,7 @@ rest and spread arguments.
 
 The Q module can be loaded as:
 
--   A ``<script>`` tag (creating a ``Q`` global variable): ~3 KB minified and
+-   A ``<script>`` tag (creating a ``Q`` global variable): ~2.5 KB minified and
     gzipped.
 -   A Node.js and CommonJS module, available in [npm](https://npmjs.org/) as
     the [q](https://npmjs.org/package/q) package

package.json

@@ -48,13 +48,18 @@
     "cover": "*",
     "jasmine-node": "1.2.2",
     "opener": "*",
-    "promises-aplus-tests": "1.x"
+    "promises-aplus-tests": "1.x",
+    "grunt": "~0.4.1",
+    "grunt-cli": "~0.1.9",
+    "grunt-contrib-uglify": "~0.2.2"
   },
   "scripts": {
     "test": "jasmine-node spec && promises-aplus-tests spec/aplus-adapter",
     "test-browser": "opener spec/q-spec.html",
     "lint": "jshint q.js",
-    "cover": "cover run node_modules/jasmine-node/bin/jasmine-node spec && cover report html && opener cover_html/index.html"
+    "cover": "cover run node_modules/jasmine-node/bin/jasmine-node spec && cover report html && opener cover_html/index.html",
+    "minify": "grunt",
+    "prepublish": "grunt"
   },
   "overlay": {
     "teleport": {