Converted Observatory isolate-nav-menu element

runtime/observatory/lib/src/elements/nav/menu_item_wrapper.dart

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 import 'dart:html';
 
 import 'package:observatory/app.dart';
 import 'package:observatory/src/elements/helpers/tag.dart';
 import 'package:observatory/src/elements/shims/binding.dart';
 import 'package:observatory/src/elements/nav/menu_item.dart';
@@ skipping 28 matching lines @@
   void attached() {
     super.attached();
     render();
   }
 
   void render() {
     shadowRoot.children = [];
     if (_anchor == null) return;
 
     shadowRoot.children = [
-      new NavMenuItemElement(_anchor, link: _link,
+      new NavMenuItemElement(_anchor, link: '#$link',
                                  queue: ObservatoryApplication.app.queue)
         ..children = [new ContentElement()]
     ];
   }
 }