chore(package): update eslint to version 3.1.1

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -20,7 +20,7 @@
   "repository": "push2cloud/compiler-workspace-resolver",
   "homepage": "http://push2.cloud/",
   "devDependencies": {
-    "eslint": "2.13.1"
+    "eslint": "3.1.1"
   },
   "dependencies": {
     "debug": "2.2.0",