Tests: Change test infrastructure to use AMD and reduce boilerplate

Ref #10119
Ref gh-1528

* Adds RequireJS and relies on AMD for loading dependencies.
* Updates to grunt-contrib-qunit 0.6.0.
* Convert `domEqual()` to a proper QUnit assertion.
* Introduces two bootstrap files (JS and CSS) which use `data-` attributes to
reduce the amount of boilerplate needed in each test

Gruntfile.js

@@ -225,6 +225,7 @@ grunt.initConfig({
 			return !( /(all|index|test)\.html$/ ).test( file );
 		}),
 		options: {
+			inject: false,
 			page: {
 				viewportSize: { width: 700, height: 500 }
 			}
@@ -284,6 +285,8 @@ grunt.initConfig({
 				"qunit-composite/qunit-composite.css": "qunit-composite/qunit-composite.css",
 				"qunit-composite/LICENSE.txt": "qunit-composite/LICENSE.txt",
 
+				"requirejs/require.js": "requirejs/require.js",
+
 				"jquery-mousewheel/jquery.mousewheel.js": "jquery-mousewheel/jquery.mousewheel.js",
 				"jquery-mousewheel/LICENSE.txt": "jquery-mousewheel/LICENSE.txt",
 

bower.json

@@ -17,6 +17,7 @@
 		"qunit": "1.18.0",
 		"qunit-assert-classes": "0.1.5",
 		"qunit-composite": "JamesMGreene/qunit-composite#v1.0.4",
+		"requirejs": "2.1.14",
 
 		"jquery-1.7.0": "jquery#1.7.0",
 		"jquery-1.7.1": "jquery#1.7.1",