Load factions file if a game is specified (admin page) to populate factions list in new single player registration form
Single player registration form now sends faction data, if available, to the registration service
Updated I18N file so error handling is ok for a 404 when registering a single player (controller and translation files updated)
Single player registration now accepts factions
Got rid of the 'debugger' statement in controller
Signup form now allows to input faction when registering