diff --git a/node_modules/material-design-lite/src/tabs/tabs.js b/node_modules/material-design-lite/src/tabs/tabs.js
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+++ b/node_modules/material-design-lite/src/tabs/tabs.js
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+/**
+ * @license
+ * Copyright 2015 Google Inc. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+(function() {
+  'use strict';
+
+  /**
+   * Class constructor for Tabs MDL component.
+   * Implements MDL component design pattern defined at:
+   * https://github.com/jasonmayes/mdl-component-design-pattern
+   *
+   * @constructor
+   * @param {Element} element The element that will be upgraded.
+   */
+  var MaterialTabs = function MaterialTabs(element) {
+    // Stores the HTML element.
+    this.element_ = element;
+
+    // Initialize instance.
+    this.init();
+  };
+  window['MaterialTabs'] = MaterialTabs;
+
+  /**
+   * Store constants in one place so they can be updated easily.
+   *
+   * @enum {string}
+   * @private
+   */
+  MaterialTabs.prototype.Constant_ = {
+    // None at the moment.
+  };
+
+  /**
+   * Store strings for class names defined by this component that are used in
+   * JavaScript. This allows us to simply change it in one place should we
+   * decide to modify at a later date.
+   *
+   * @enum {string}
+   * @private
+   */
+  MaterialTabs.prototype.CssClasses_ = {
+    TAB_CLASS: 'mdl-tabs__tab',
+    PANEL_CLASS: 'mdl-tabs__panel',
+    ACTIVE_CLASS: 'is-active',
+    UPGRADED_CLASS: 'is-upgraded',
+
+    MDL_JS_RIPPLE_EFFECT: 'mdl-js-ripple-effect',
+    MDL_RIPPLE_CONTAINER: 'mdl-tabs__ripple-container',
+    MDL_RIPPLE: 'mdl-ripple',
+    MDL_JS_RIPPLE_EFFECT_IGNORE_EVENTS: 'mdl-js-ripple-effect--ignore-events'
+  };
+
+  /**
+   * Handle clicks to a tabs component
+   *
+   * @private
+   */
+  MaterialTabs.prototype.initTabs_ = function() {
+    if (this.element_.classList.contains(this.CssClasses_.MDL_JS_RIPPLE_EFFECT)) {
+      this.element_.classList.add(
+        this.CssClasses_.MDL_JS_RIPPLE_EFFECT_IGNORE_EVENTS);
+    }
+
+    // Select element tabs, document panels
+    this.tabs_ = this.element_.querySelectorAll('.' + this.CssClasses_.TAB_CLASS);
+    this.panels_ =
+        this.element_.querySelectorAll('.' + this.CssClasses_.PANEL_CLASS);
+
+    // Create new tabs for each tab element
+    for (var i = 0; i < this.tabs_.length; i++) {
+      new MaterialTab(this.tabs_[i], this);
+    }
+
+    this.element_.classList.add(this.CssClasses_.UPGRADED_CLASS);
+  };
+
+  /**
+   * Reset tab state, dropping active classes
+   *
+   * @private
+   */
+  MaterialTabs.prototype.resetTabState_ = function() {
+    for (var k = 0; k < this.tabs_.length; k++) {
+      this.tabs_[k].classList.remove(this.CssClasses_.ACTIVE_CLASS);
+    }
+  };
+
+  /**
+   * Reset panel state, droping active classes
+   *
+   * @private
+   */
+  MaterialTabs.prototype.resetPanelState_ = function() {
+    for (var j = 0; j < this.panels_.length; j++) {
+      this.panels_[j].classList.remove(this.CssClasses_.ACTIVE_CLASS);
+    }
+  };
+
+  /**
+   * Initialize element.
+   */
+  MaterialTabs.prototype.init = function() {
+    if (this.element_) {
+      this.initTabs_();
+    }
+  };
+
+  /**
+   * Constructor for an individual tab.
+   *
+   * @constructor
+   * @param {Element} tab The HTML element for the tab.
+   * @param {MaterialTabs} ctx The MaterialTabs object that owns the tab.
+   */
+  function MaterialTab(tab, ctx) {
+    if (tab) {
+      if (ctx.element_.classList.contains(ctx.CssClasses_.MDL_JS_RIPPLE_EFFECT)) {
+        var rippleContainer = document.createElement('span');
+        rippleContainer.classList.add(ctx.CssClasses_.MDL_RIPPLE_CONTAINER);
+        rippleContainer.classList.add(ctx.CssClasses_.MDL_JS_RIPPLE_EFFECT);
+        var ripple = document.createElement('span');
+        ripple.classList.add(ctx.CssClasses_.MDL_RIPPLE);
+        rippleContainer.appendChild(ripple);
+        tab.appendChild(rippleContainer);
+      }
+
+      tab.addEventListener('click', function(e) {
+        if (tab.getAttribute('href').charAt(0) === '#') {
+          e.preventDefault();
+          var href = tab.href.split('#')[1];
+          var panel = ctx.element_.querySelector('#' + href);
+          ctx.resetTabState_();
+          ctx.resetPanelState_();
+          tab.classList.add(ctx.CssClasses_.ACTIVE_CLASS);
+          panel.classList.add(ctx.CssClasses_.ACTIVE_CLASS);
+        }
+      });
+
+    }
+  }
+
+  // The component registers itself. It can assume componentHandler is available
+  // in the global scope.
+  componentHandler.register({
+    constructor: MaterialTabs,
+    classAsString: 'MaterialTabs',
+    cssClass: 'mdl-js-tabs'
+  });
+})();