chore(package): update eslint to version 4.3.0

Closes #213

Author: greenkeeper[bot]

package.json

@@ -64,7 +64,7 @@
     "clang-flags": "^0.2.2"
   },
   "devDependencies": {
-    "eslint": "^3.18.0",
+    "eslint": "^4.3.0",
     "eslint-config-airbnb-base": "^11.1.2",
     "eslint-plugin-import": "^2.2.0",
     "jasmine-fix": "^1.0.1"