Refactored, refined & added a next-functionality to routes

 + So now we could have something like this:
   $app->any('api/*',$someUserClass->checkCredentials);
   and that would be able to say to the app, if we should have access
   to the API, it will tell the application to continue, thus continue
   matching but making sure that all URIs that go to the api, will have
   the checkCredentials run automaticly.