Merge pull request #97 from AtomLinter/greenkeeper/fs-extra-4.0.0

Update fs-extra to the latest version 🚀

Author: mauricerkelly

package.json

@@ -53,7 +53,7 @@
     "eslint": "^3.13.0",
     "eslint-config-airbnb-base": "^11.0.1",
     "eslint-plugin-import": "^2.2.0",
-    "fs-extra": "^3.0.1"
+    "fs-extra": "^4.0.0"
   },
   "eslintConfig": {
     "extends": "airbnb-base",