Rename MenuItem to DrawerItem

sky/sdk/lib/widgets/menu_divider.dart

-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:sky/widgets/basic.dart';
-import 'package:sky/widgets/theme.dart';
-
-class MenuDivider extends Component {
-  MenuDivider({ String key }) : super(key: key);
-
-  Widget build() {
-    return new Container(
-      height: 0.0,
-      decoration: new BoxDecoration(
-        border: new Border(
-          bottom: new BorderSide(
-            color: Theme.of(this).dividerColor
-          )
-        )
-      ),
-      margin: const EdgeDims.symmetric(vertical: 8.0)
-    );
-  }
-}