chore(package): update eslint to version 3.3.1 (#907)

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -64,7 +64,7 @@
     "chai": "^3.5.0",
     "chai-subset": "^1.2.2",
     "coveralls": "^2.11.9",
-    "eslint": "^3.1.1",
+    "eslint": "^3.3.1",
     "eslint-config-standard": "^5.1.0",
     "eslint-plugin-promise": "^2.0.0",
     "eslint-plugin-standard": "^2.0.0",