Update babel-eslint dev dependency

Author: AlexKVal

package.json

@@ -45,7 +45,7 @@
   "devDependencies": {
     "babel": "^5.8.3",
     "babel-core": "^5.8.3",
-    "babel-eslint": "^3.1.26",
+    "babel-eslint": "^4.0.0",
     "babel-loader": "^5.2.1",
     "bootstrap": "^3.3.4",
     "brfs": "^1.4.0",