chore(package): update babel-eslint to version 8.1.1

Closes #37

Author: greenkeeper[bot]

Diff for: package.json

@@ -54,7 +54,7 @@
   "browser": "dist/index.js",
   "devDependencies": {
     "babel-cli": "^6.14.0",
-    "babel-eslint": "^7.2.3",
+    "babel-eslint": "^8.1.1",
     "babel-plugin-add-module-exports": "^0.2.1",
     "babel-plugin-transform-class-properties": "^6.11.5",
     "babel-plugin-transform-decorators-legacy": "^1.3.4",