Fixed missing packages

Author: eabait

package.json

@@ -9,7 +9,9 @@
     "grunt": "~0.4.2",
     "grunt-contrib-clean": "~0.5.0",
     "grunt-contrib-jshint": "~0.8.0",
+    "grunt-contrib-requirejs": "~0.4.1",
     "grunt-contrib-concat": "~0.3.0",
+    "grunt-contrib-copy": "~0.4.1",
     "grunt-contrib-imagemin": "~0.5.0",
     "grunt-contrib-csslint": "~0.2.0",
     "grunt-css": "~0.5.4",