[ADF-770] upgrade to md-menu (#2060)

* upgrade to md-menu

- upgrade to md-menu
- fix issue with missing icons
- extend demo shell to show icons for actions
- fix issue with border problems in Firefox
- remove commented out samples in demo shell (there's readme for that instead)

* fix unit tests

* fix tests

ng2-components/ng2-alfresco-documentlist/src/material.module.ts

@@ -0,0 +1,34 @@
+/*!
+ * @license
+ * Copyright 2016 Alfresco Software, Ltd.
+ *
+ * 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.
+ */
+
+import { NgModule } from '@angular/core';
+import { MdButtonModule, MdIconModule, MdMenuModule, MdProgressSpinnerModule } from '@angular/material';
+
+export function modules() {
+    return [
+        MdMenuModule,
+        MdButtonModule,
+        MdIconModule,
+        MdProgressSpinnerModule
+    ];
+}
+
+@NgModule({
+    imports: modules(),
+    exports: modules()
+})
+export class MaterialModule {}