Merge pull request #121 from AtomLinter/greenkeeper-eslint-3.0.0

Update eslint to version 3.0.0 🚀

Author: 1000ch

package.json

@@ -33,7 +33,7 @@
     "tiny-promisify": "^0.1.1"
   },
   "devDependencies": {
-    "eslint": "^2.9.0",
+    "eslint": "^3.0.0",
     "eslint-config-airbnb-base": "^3.0.1",
     "eslint-plugin-import": "^1.7.0"
   },