chore(package): update babel-eslint to version 8.2.1

Closes #90

Author: greenkeeper[bot]

package.json

@@ -85,7 +85,7 @@
   "devDependencies": {
     "ava": "^0.16.0",
     "babel-cli": "^6.18.0",
-    "babel-eslint": "^7.1.0",
+    "babel-eslint": "^8.2.1",
     "coveralls": "^2.11.14",
     "cross-env": "^3.1.3",
     "espower": "^2.0.0",