Add a menu to the stocks app

sky/examples/widgets-fn/widgets_app.dart

Index: sky/examples/widgets-fn/widgets_app.dart
diff --git a/sky/examples/widgets-fn/widgets_app.dart b/sky/examples/widgets-fn/widgets_app.dart
index 6a24237033bfb2361fbeb42577d65478a2e39dbb..2c1e8ca304cce54d7e119a72d031303c21e98ddc 100644
--- a/sky/examples/widgets-fn/widgets_app.dart
+++ b/sky/examples/widgets-fn/widgets_app.dart
@@ -5,7 +5,6 @@
 import '../../framework/fn.dart';
 import '../../framework/components/button.dart';
 import '../../framework/components/popup_menu.dart';
-import '../../framework/components/popup_menu_item.dart';
 
 class WidgetsApp extends App {
   static final Style _menuStyle = new Style('''
@@ -22,14 +21,14 @@ class WidgetsApp extends App {
           style: _menuStyle,
           children: [
             new PopupMenu(
-              children: [
-                  new PopupMenuItem(key: '1', children: [new Text('People & options')]),
-                  new PopupMenuItem(key: '2', children: [new Text('New group conversation')]),
-                  new PopupMenuItem(key: '3', children: [new Text('Turn history off')]),
-                  new PopupMenuItem(key: '4', children: [new Text('Archive')]),
-                  new PopupMenuItem(key: '5', children: [new Text('Delete')]),
-                  new PopupMenuItem(key: '6', children: [new Text('Un-merge SMS')]),
-                  new PopupMenuItem(key: '7', children: [new Text('Help & feeback')]),
+              items: [
+                [new Text('People & options')],
+                [new Text('New group conversation')],
+                [new Text('Turn history off')],
+                [new Text('Archive')],
+                [new Text('Delete')],
+                [new Text('Un-merge SMS')],
+                [new Text('Help & feeback')],
               ],
               level: 4),
             ]