[Requests] Select multiple users

[Marz]

The ability to select multiple users and perform actions on them such as moving, muting, kicking etc would be very handy. It seems like an overdue feature to me, not that I'm ungrateful for the level of work that has gone into mumble already.

[fwaggle]

http://sourceforge.net/p/mumble/feature-requests/344/

Unfortunately, I'm pretty sure due to the controls we're using, it would take a fair amount of work to do this.