Merge pull request #187 from bergie/greenkeeper/grunt-contrib-uglify-3.0.0

Update grunt-contrib-uglify to the latest version 🚀

Author: bergie

package.json

@@ -44,7 +44,7 @@
     "grunt-contrib-jshint": "^1.1.0",
     "grunt-contrib-nodeunit": "^1.0.0",
     "grunt-contrib-qunit": "^2.0.0",
-    "grunt-contrib-uglify": "^2.3.0",
+    "grunt-contrib-uglify": "^3.0.0",
     "grunt-contrib-watch": "^1.0.0"
   },
   "lib": ".",