Disallow leading or trailing spaces at account creation

[Ablu]

This is pretty confusing, especiall with @ commands.

[bjorn]

Ah, you mean when the user name should later be typed in an @ command.

I guess we could just trim it server side. If we would not do it server side then the server would have to check for it, which is almost the same thing.

[Ablu]

that sounds fine to me too. But we still need to make sure we trim it everywhere. So even at login tries... Otherwise that would be confusing i fear.

[bjorn]

Of course.

[bjorn]

Or well... the trimming on server side is only required when new accounts are created. For all other purposes, trimming on client-side should suffice.