Add logging config for production Profile
Use displayName from Stoker on the screen
Use real ServiceRegistry in dev mode.
Renamed AppController

Renamed AppController to ServiceProviderController.
Added ControllerAdvice for ExceptionHandling

The ExceptionController logs exceptions and renders
a nicely formatted error page.
Depend on released Stoker 0.4
Display correct title on invite page
Display correct title on new page
Display correct title on thanks page