chore(package): update ember-cli-eslint to version 5.1.0

Closes #198

Author: greenkeeper[bot]

package.json

@@ -25,7 +25,7 @@
     "ember-ajax": "^3.0.0",
     "ember-cli": "~2.17.0",
     "ember-cli-dependency-checker": "^2.0.0",
-    "ember-cli-eslint": "^4.2.1",
+    "ember-cli-eslint": "^5.1.0",
     "ember-cli-htmlbars": "^2.0.1",
     "ember-cli-htmlbars-inline-precompile": "^1.0.0",
     "ember-cli-inject-live-reload": "^1.4.1",