Fix up routing on this example

Check out these few fixes, this should at least get you up and running with Routing (though the auto-suspend stuff is still broken, I'm not sure why). 

The idea is, that RxUI.Mobile hooks all of the suspend / resume stuff, so that we'll automatically restore your app's state on resume, but if there is no state to resume we create it from scratch. That "create it from scratch" part isn't happening, so we just see a blank screen.