Upgrade babel-eslint

Author: jakezatecky

package.json

@@ -28,7 +28,7 @@
   },
   "devDependencies": {
     "babel-core": "^6.13.2",
-    "babel-eslint": "^7.0.0",
+    "babel-eslint": "^8.0.0",
     "babel-loader": "^7.0.0",
     "babel-preset-es2015": "^6.13.2",
     "babel-preset-react": "^6.11.1",