chore(package): update eslint-config-eslint to version 6.0.0

Closes #77

Author: greenkeeper[bot]

package.json

@@ -53,7 +53,7 @@
     "dependency-check": "2.9.1",
     "doctoc": "1.3.0",
     "eslint": "4.5.0",
-    "eslint-config-eslint": "4.0.0",
+    "eslint-config-eslint": "6.0.0",
     "faucet": "0.0.1",
     "husky": "0.14.3",
     "istanbul": "0.4.5",