Update grunt-contrib-watch package version

Author: marcinmodestowicz

package.json

@@ -4,7 +4,7 @@
   "version": "0.1.4",
   "devDependencies": {
     "grunt": "~0.4.0",
-    "grunt-contrib-watch": "~0.2.0",
+    "grunt-contrib-watch": "~0.6.1",
     "grunt-contrib-sass": "~0.2.2",
     "grunt-contrib-copy": "~0.4.0",
     "grunt-contrib-jshint": "~0.4.0",