chore(package): update eslint to version 4.18.2

Closes #39

Author: greenkeeper[bot]

package.json

@@ -28,7 +28,7 @@
     "body-parser": "^1.14.1",
     "codeclimate-test-reporter": "0.4.1",
     "continuation-local-storage": "^3.1.6",
-    "eslint": "4.14.0",
+    "eslint": "4.18.2",
     "express": "^4.13.4",
     "istanbul": "0.4.5",
     "mocha": "^4.0.0",