npm_modules: Fork bower_components into Polymer 0.4.0 and 0.5.0 versions

bower_components/polymer-collapse/polymer-collapse.css

Index: bower_components/polymer-collapse/polymer-collapse.css
diff --git a/bower_components/polymer-collapse/polymer-collapse.css b/bower_components/polymer-collapse/polymer-collapse.css
deleted file mode 100644
index f9e577e016d9b93d976cd99159fced8458099711..0000000000000000000000000000000000000000
--- a/bower_components/polymer-collapse/polymer-collapse.css
+++ /dev/null
@@ -1,8 +0,0 @@
-/*
-Copyright 2013 The Polymer Authors. All rights reserved.
-Use of this source code is governed by a BSD-style
-license that can be found in the LICENSE file.
-*/
-.polymer-collapse-closed {
-  display: none;
-}