Add polymer 1.0 to npm_modules

polymer_1.0.4/bower_components/iron-test-helpers/iron-test-helpers.html

 <!--
-Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
+@license
+Copyright (c) 2015 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
 -->
-<link rel="stylesheet" href="mocha/mocha.css" />
-<script src="mocha/mocha.js"></script>
-<script src="chai/chai.js"></script>
+<script src="mock-interactions.js"></script>
+<script src="test-helpers.js"></script>
 <script>
-  window.assert = chai.assert;
+  (function(global) {
+    'use strict';
+
+    var TestHelpers = global.TestHelpers = global.TestHelpers || {};
+
+    TestHelpers.flushAsynchronousOperations = flushAsynchronousOperations;
+    TestHelpers.forceXIfStamp = forceXIfStamp;
+    TestHelpers.fireEvent = fireEvent;
+  })(this);
 </script>