Update requirejs to compatible version, remove r.js

Conflicts:
	package.json

build/tasks/build.js

@@ -11,7 +11,7 @@ module.exports = function( grunt ) {
 		srcFolder = __dirname + "/../../src/",
 		rdefineEnd = /\}\);[^}\w]*$/,
 		// This is temporary until the skipSemiColonInsertion option makes it to NPM
-		requirejs = require( "../r" ),
+		requirejs = require( "requirejs" ),
 		config = {
 			baseUrl: "src",
 			name: "jquery",

package.json

@@ -38,7 +38,7 @@
     "grunt-jsonlint": "~1.0.0",
     "gzip-js": "0.3.2",
     "testswarm": "~1.1.0",
-		"requirejs": "~2.1.8",
+    "requirejs": "~2.1.9",
     "which": "~1.0.5"
   },
   "scripts": {