chore(package): update ember-cli-blueprint-test-helpers to version 0.13.1

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -28,7 +28,7 @@
     "ember-ajax": "2.5.1",
     "ember-cli": "2.6.2",
     "ember-cli-app-version": "^2.0.0",
-    "ember-cli-blueprint-test-helpers": "^0.12.0",
+    "ember-cli-blueprint-test-helpers": "^0.13.1",
     "ember-cli-dependency-checker": "^1.2.0",
     "ember-cli-htmlbars": "^1.0.6",
     "ember-cli-htmlbars-inline-precompile": "^0.3.1",