[Frontend] Hide/show Create button in mobile

open #250
open #157
Create button now hidden by default in mobile via
usage of CSS; can be re-displayed by including
'example/mobile' bundle;

example/mobile/res/sass/mobile-example.scss

@@ -0,0 +1,31 @@
+/*****************************************************************************
+ * 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.
+ *****************************************************************************/
+@import "../../../../platform/commonUI/general/res/sass/constants";
+@import "../../../../platform/commonUI/general/res/sass/mobile/constants";
+@import "../../../../platform/commonUI/general/res/sass/mobile/mixins";
+
+@include phoneandtablet {
+    // Show the Create button
+    .create-btn-holder {
+        display: block !important;
+    }
+}