Fix grunt version which I accidentally messed up with b41acc6

Author: adamschwartz

package.json

@@ -9,7 +9,7 @@
     "coffee-script": "~1.6.3",
     "grunt-contrib-uglify": "~0.2.4",
     "grunt-cli": "~0.1.9",
-    "grunt": "~0.5.0",
+    "grunt": "~0.4.1",
     "grunt-contrib-watch": "~0.5.3",
     "grunt-contrib-compass": "~0.5.0"
   }