[frontend] Missing grunt uglify dependency on packages.json
"expose-loader": "0.7.1",
"grunt": "0.4.5",
"grunt-contrib-less": "1.3.0",
+ "grunt-contrib-uglify": "^3.0.1",
"grunt-contrib-watch": "0.6.1",
"load-grunt-tasks": "3.1.0",
"webpack": "1.13.1"
