Add "ember-native-dom-helpers" dependency

Author: Turbo87

package.json

@@ -52,6 +52,7 @@
     "ember-maybe-import-regenerator": "^0.1.6",
     "ember-metrics": "^0.10.0",
     "ember-moment": "^7.3.1",
+    "ember-native-dom-helpers": "^0.5.4",
     "ember-normalize": "^1.0.0",
     "ember-page-title": "^3.2.1",
     "ember-prism": "^0.1.0",