Merge pull request #535 from ember-fastboot/greenkeeper/ember-source-2.16.0

Update ember-source to the latest version 🚀

Author: kratiahuja

package.json

@@ -58,7 +58,7 @@
     "ember-load-initializers": "^1.0.0",
     "ember-resolver": "^4.3.0",
     "ember-sinon": "^1.0.0",
-    "ember-source": "~2.15.0",
+    "ember-source": "~2.16.0",
     "glob": "^7.0.0",
     "loader.js": "^4.2.3",
     "mocha": "^4.0.0",