Bundled license information:

@webcomponents/webcomponentsjs/webcomponents-bundle.js:
  /**
  @license @nocompile
  Copyright (c) 2018 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
  */

lit-element/polyfill-support.js:
  /**
       * @license
       * Copyright 2017 Google LLC
       * SPDX-License-Identifier: BSD-3-Clause
       */
