Merge pull request #108 from philwareham/greenkeeper/grunt-contrib-uglify-4.0.1

Update grunt-contrib-uglify to the latest version 🚀

Author: philwareham

package-lock.json

@@ -16,7 +16,7 @@
     "grunt-concurrent": "3.0.0",
     "grunt-contrib-clean": "2.0.0",
     "grunt-contrib-jshint": "1.1.0",
-    "grunt-contrib-uglify": "4.0.0",
+    "grunt-contrib-uglify": "4.0.1",
     "grunt-contrib-watch": "1.1.0",
     "grunt-postcss": "0.9.0",
     "grunt-sass": "3.1.0",