Update NPM dependencies

Author: Zeno Rocha

package.json

@@ -12,12 +12,12 @@
 	"devDependencies": {
 		"grunt": "~0.4.1",
 		"grunt-cli": "~0.1.7",
-		"grunt-contrib-jasmine": "~0.5.1",
-		"grunt-contrib-jshint": "~0.4.3",
 		"grunt-contrib-concat": "~0.3.0",
+		"grunt-contrib-jasmine": "~0.5.1",
+		"grunt-contrib-jshint": "~0.7.2",
 		"grunt-contrib-uglify": "~0.2.0",
-		"grunt-contrib-watch": "~0.4.2",
-		"grunt-lintspaces": "0.2.203"
+		"grunt-contrib-watch": "~0.5.3",
+		"grunt-lintspaces": "~0.2.301"
 	},
 	"scripts": {
 		"test": "grunt test --verbose"