Update packages to latest versions

Author: paladox

package.json

@@ -31,8 +31,8 @@
     "glob": "~5.0.0"
   },
   "devDependencies": {
-    "grunt": "~0.4.4",
-    "grunt-contrib-jshint": "~0.9.2",
+    "grunt": "~0.4.5",
+    "grunt-contrib-jshint": "~0.11.3",
     "grunt-contrib-nodeunit": "~0.3.3"
   },
   "keywords": [