Update

Author: Svetlana Karslioglu

package.json

@@ -12,13 +12,12 @@
     "grunt-banner": "^0.6.0",
     "grunt-browserify": "^5.0.0",
     "grunt-contrib-clean": "^1.0.0",
-    "grunt-contrib-concat": "^2.1.0",
     "grunt-contrib-connect": "^1.0.2",
     "grunt-contrib-copy": "~1.0.0",
     "grunt-contrib-uglify": "~3.3.0",
-    "grunt-contrib-watch": "^1.1.0",
+    "grunt-contrib-watch": "~1.0.0",
     "grunt-exec": "~1.0.1",
-    "grunt-open": "^0.2.4",
+    "grunt-open": "0.2.3",
     "grunt-postcss": "^0.9.0",
     "matchdep": "~1.0.1",
     "popper.js": "^1.14.3"