Merge pull request #9 from itgalaxy/greenkeeper/lint-staged-4.0.0

Update lint-staged to the latest version 🚀

Author: evilebottnawi

package.json

@@ -59,7 +59,7 @@
         "webpack-dev-middleware": "^1.0.0",
         "webpack-hot-middleware": "^2.0.0",
         "husky": "^0.13.0",
-        "lint-staged": "^3.6.0",
+        "lint-staged": "^4.0.0",
         "prettier": "^1.4.2"
     },
     "peerDependencies": {