release 0.3.1

Author: dfreedm

bower.json

@@ -2,8 +2,8 @@
   "name": "core-icons",
   "private": true,
   "dependencies": {
-    "core-icon": "Polymer/core-icon#master",
-    "core-iconset-svg": "Polymer/core-iconset-svg#master",
-    "polymer": "Polymer/polymer#master"
+    "core-icon": "Polymer/core-icon#>=0.3.0 <1.0.0",
+    "core-iconset-svg": "Polymer/core-iconset-svg#>=0.3.0 <1.0.0",
+    "polymer": "Polymer/polymer#>=0.3.0 <1.0.0"
   }
-}
+}