Update dependency grunt-contrib-jshint to v3

Author: renovate-bot

package.json

@@ -17,7 +17,7 @@
   "devDependencies": {
     "grunt": "^0.4.5",
     "jquery": "2.1.1",
-    "grunt-contrib-jshint": "~0.10.0",
+    "grunt-contrib-jshint": "~3.0.0",
     "grunt-contrib-nodeunit": "~0.4.1",
     "grunt-contrib-uglify": "~0.5.0",
     "grunt-contrib-clean": "~0.5.0",