npm_modules: Fork bower_components into Polymer 0.4.0 and 0.5.0 versions

bower_components/core-splitter/core-splitter.css

-/*
-Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
-This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
-The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
-The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
-Code distributed by Google as part of the polymer project is also
-subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
-*/
-
-:host {
-  display: block;
-  width: 12px;
-  background: #efefef url(handle.svg) no-repeat center;
-  box-shadow: inset 0 0 2px 1px #ccc;
-  cursor: col-resize;
-}
-
-:host(.horizontal) {
-  width: auto;
-  height: 12px;
-  cursor: row-resize;
-  background-image: url(handle-h.svg);
-}
-
-:host(:hover, :active) {
-  background-color: #ddd;
-}