chore(package): update eslint-config-airbnb to version 17.1.1

Closes #66

Author: greenkeeper[bot]

package.json

@@ -33,7 +33,7 @@
     "chai": "^4.0.1",
     "css-loader": "^0.28.0",
     "eslint": "^4.1.1",
-    "eslint-config-airbnb": "^15.0.0",
+    "eslint-config-airbnb": "^17.1.1",
     "eslint-import-resolver-webpack": "^0.8.1",
     "eslint-loader": "^1.6.1",
     "eslint-plugin-import": "^2.2.0",