Port sky_home to the new SkyView world

sky/examples/game/main.dart

Index: sky/examples/game/main.dart
diff --git a/sky/examples/game/main.dart b/sky/examples/game/main.dart
index 273204c3f4f5ac513df30faee5d683a75eb555dd..ebbe0d2547e348d95755d6cf03073766d8fb0e76 100644
--- a/sky/examples/game/main.dart
+++ b/sky/examples/game/main.dart
@@ -19,5 +19,5 @@ void allLoaded(ImageMap loader) {
   // Create a new app with the sprite box that contains our game world
   //app = new AppView(new GameBox(new GameWorld(loader)));
   //print("hello");
-  app = new AppView((new GameTestsBox(new GameTests(loader), SpriteBoxTransformMode.nativePoints)));
+  app = new AppView(root: (new GameTestsBox(new GameTests(loader), SpriteBoxTransformMode.nativePoints)));
 }