chore(package): update ember-osf to version 0.5.4

Closes #37

Author: greenkeeper[bot]

package.json

@@ -51,7 +51,7 @@
     "ember-data": "^2.8.0",
     "ember-export-application-global": "^2.0.0",
     "ember-load-initializers": "^1.0.0",
-    "ember-osf": "~0.4.0",
+    "ember-osf": "~0.5.4",
     "ember-page-title": "3.1.5",
     "ember-resolver": "^4.1.0",
     "eslint": "^3.19.0",