chore(package): update eslint to version 2.11.1

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -38,7 +38,7 @@
     "babel-core": "^6.6.0",
     "babel-preset-es2015": "^6.6.0",
     "chai": "^3.5.0",
-    "eslint": "2.11.0",
+    "eslint": "2.11.1",
     "mocha": "^2.4.5",
     "redis": "^2.4.2",
     "rimraf": "^2.5.2"