Merge pull request #18 from zephraph/greenkeeper/lint-staged-7.0.0

Update lint-staged to the latest version 🚀

Author: zephraph

package.json

@@ -51,7 +51,7 @@
     "@types/node": "^9.3.0",
     "husky": "^0.14.0",
     "jest": "^22.0.0",
-    "lint-staged": "^6.0.0",
+    "lint-staged": "^7.0.0",
     "np": "^2.14.1",
     "ts-jest": "^22.0.0",
     "tslint": "^5.2.0",