Small optimization
Fixed error in username validation

http://www.woltlab.com/forum/index.php/Thread/219895-Fehlerhafter-Benutzername-bei-starten-einer-PN-Fatal-Error/
Fixed input field type
Merge branch 'master' of github.com:WoltLab/WCF
Fixed wrong author in notifications
Fixed missing access to user option values
Fixed missing user ranks when using 3rd party auth
Fixed broken user website
Adds missing language item