[Mobile] Add classes to body

Add classes describing device characteristics to the
body of the current document at start-up. Refactor
device matchers out of the mct-device directive for
reuse and consistency here.

https://github.com/nasa/openmctweb/issues/169

platform/commonUI/mobile/src/DeviceMatchers.js

@@ -0,0 +1,57 @@
+/*****************************************************************************
+ * 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";
+
+    /**
+     * An object containing key-value pairs, where keys are symbolic of
+     * device attributes, and values are functions that take the
+     * `agentService` as inputs and return boolean values indicating
+     * whether or not the current device has these attributes.
+     *
+     * For internal use by the mobile support bundle.
+     *
+     * @memberof platform/commonUI/mobile
+     * @private
+     */
+    return {
+        mobile: function (agentService) {
+            return agentService.isMobile();
+        },
+        phone: function (agentService) {
+            return agentService.isPhone();
+        },
+        tablet: function (agentService) {
+            return agentService.isTablet();
+        },
+        desktop: function (agentService) {
+            return !agentService.isMobile();
+        },
+        portrait: function (agentService) {
+            return agentService.isPortrait();
+        },
+        landscape: function (agentService) {
+            return agentService.isLandscape();
+        }
+    };
+});