release 0.5.5-rc1

Author: dfreedm

bower.json

@@ -2,7 +2,7 @@
   "name": "core-label",
   "private": true,
   "dependencies": {
-    "polymer": "Polymer/polymer#master"
+    "polymer": "Polymer/polymer#^0.5"
   },
   "devDependencies": {
     "web-component-tester": "Polymer/web-component-tester#^1"
@@ -14,4 +14,4 @@
     "test",
     "tests"
   ]
-}
+}