OpenSlides/OpenSlides — pull request #603 by ostcar (2013-04-22 11:54:55+00:00)
Title: Fixed username

Fixed #533 by changing the default username to firstname_lastname.

I could not fix remove the validator from the user-model. We could use white-space between the names again in 1.5 when we rewrite the user-model. But for know I don't see another solution.