[Frontend] Add splash screen manager

Add a runtime extension that detects the splash screen and triggers a fade out
after the application has loaded.  Once the fade out has ended, it removes the
element from the page.

Related to https://github.com/nasa/openmctweb/issues/164

platform/commonUI/general/src/SplashScreenManager.js

@@ -0,0 +1,46 @@
+/*****************************************************************************
+ * Open MCT Web, Copyright (c) 2014-2015, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT Web is 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.
+ *
+ * Open MCT Web includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+
+/*global define*/
+
+define([
+
+], function (
+
+) {
+    'use strict';
+
+    function SplashScreenManager($document) {
+        var splash;
+        $document = $document[0];
+        splash = $document.querySelectorAll('.s-logo-holder')[0];
+        if (!splash) {
+            return;
+        }
+        splash.className += ' fadeout';
+        splash.addEventListener('transitionend', function () {
+            splash.parentNode.removeChild(splash);
+        });
+    }
+
+    return SplashScreenManager;
+});