add grunt-stripmq to package.json

Author: tilomitra

package.json

@@ -18,6 +18,7 @@
     "grunt-contrib-csslint": "~0.2.0",
     "grunt-contrib-watch": "~0.5.3",
     "grunt-css-selectors": "~1.0.0",
-    "grunt-pure-grids": "0.0.1"
+    "grunt-pure-grids": "0.0.1",
+    "grunt-stripmq": "0.0.3"
   }
 }