chore(*): update npm dependencies

Author: urish

package.json

@@ -9,14 +9,14 @@
 	"dependencies": {},
 	"devDependencies": {
 		"grunt": "~0.4.1",
-		"load-grunt-tasks": "0.4.0",
+		"load-grunt-tasks": "0.6.0",
 		"grunt-contrib-jshint": "~0.10.0",
-		"grunt-contrib-uglify": "~0.4.0",
+		"grunt-contrib-uglify": "~0.5.0",
 		"grunt-karma": "~0.8.0",
 		"karma-coverage": "~0.2.0",
 		"karma-jasmine": "~0.2.2",
 		"karma-phantomjs-launcher": "~0.1.1",
-		"coveralls": "~2.10.0"
+		"coveralls": "~2.11.0"
 	},
 	"engines": {
 		"node": ">=0.10.0"