release 0.5.1

Author: dfreedm

bower.json

@@ -2,6 +2,7 @@
   "name": "core-image",
   "private": true,
   "dependencies": {
-    "polymer": "Polymer/polymer#master"
-  }
-}
+    "polymer": "Polymer/polymer#^0.5.0"
+  },
+  "version": "0.5.1"
+}