title: Using NavigationService without XAML files
body: <p>I'm trying to create some pages in my Windows Phone application without the use of any XAML. Everything is working, however, I'm failing to use NavigationService/ Journal with this approach and all my attempts to utilize it are answered by the usual "No XAML was found at the location {0}'" response. Yes, I can add an almost empty XAML file to get everything working, but is this kind of boiler plate code really necessary? </p>
  
  <p>Is it maybe possible to use the UriMapping to map certain Uris to specific classes instead of *.xaml files?</p>