Turn off/on webcam + more

[Knut]

Admin/moderator must have the features so he can turn off/on users webcam
Moderator must could ban users, not only kick
different admins level. Speradmin have access to the all adminpanel
Admin have access to specified parts.
Admin must have features to edit video quality
"Speakers" must have access to go privat with other "speakers"
Remove room owners name from the roomlist.

[david_jiang]

Thanks for your feature list and we will consider them when we develop our next version.