Adding existing users

[Romeo Adrian Cioaba]

I've setup latest jabbify according with
http://wiki.jabbify.com/index.php?title=Get_Started_with_Simple_Client
and everything works well.

I have an application that already has user management and i would
like my users to be able to chat using their usernames, not be asked
everytime what username they want.

I have removed the settings controller and the settings tab is gone, i
like that as they won't be able to change their user anymore, but i
need a way to add the user via server side scripting (PHP in my case).

Thanks,
Romeo