Update dependency grunt to v1 [SECURITY]

Author: renovate-bot

package.json

@@ -15,7 +15,7 @@
   "author": "Rajesh Veldandi",
   "license": "MIT",
   "devDependencies": {
-    "grunt": "^0.4.5",
+    "grunt": "^1.3.0",
     "jquery": "2.1.1",
     "grunt-contrib-jshint": "~0.10.0",
     "grunt-contrib-nodeunit": "~0.4.1",