update dependency versions to work with current node

fixes yarn install/yarn test

Signed-off-by: Elliot Murphy <statik@users.noreply.github.com>

Author: Elliot Murphy

package.json

@@ -36,7 +36,7 @@
     "ember-cli-eslint": "^5.1.0",
     "ember-cli-github-pages": "^0.2.0",
     "ember-cli-inject-live-reload": "^1.4.1",
-    "ember-cli-qunit": "^4.3.2",
+    "ember-cli-qunit": "^4.4.0",
     "ember-cli-shims": "^1.2.0",
     "ember-cli-sri": "^2.1.0",
     "ember-cli-uglify": "^2.0.0",
@@ -45,7 +45,6 @@
     "ember-export-application-global": "^2.0.0",
     "ember-load-initializers": "^1.1.0",
     "ember-maybe-import-regenerator": "^0.1.6",
-    "ember-native-dom-helpers": "^0.6.2",
     "ember-resolver": "^4.0.0",
     "ember-source": "~3.3.0",
     "ember-source-channel-url": "^1.0.1",