Merge pull request #313 from rust-lang/greenkeeper-ember-data-2.5.2

Update ember-data to version 2.5.2 🚀

Author: alexcrichton

package.json

@@ -38,7 +38,7 @@
     "ember-cli-sass": "5.3.1",
     "ember-cli-sri": "^1.2.0",
     "ember-cli-uglify": "^1.2.0",
-    "ember-data": "2.4.3",
+    "ember-data": "2.5.2",
     "ember-export-application-global": "^1.0.4",
     "ember-moment": "6.1.0",
     "ember-page-title": "2.0.7",