Refactor STUN/TURN fetch, remove 3rd party fallback STUNs, ...

Refactored STUN/TURN fetch to be done only once, when successful, per session and cache it in mem to avoid too many reqs. Current way is a bit dumb, this should increase reliability a bit more. The caching is configurable so folks who want to use very short lived TURN credentials can disable it

Add a fallback STUN config option to be used when the default STUN/TURN fetch fails

Clean the safari/no candidate generation pre flight check from 3rd party STUNs

Fix deadlock in audio join when STUN/TURN fetch failed

Removing 3rd party default STUN servers from those dependencies as to prevent unexpected behaviour

Avoid guest promotion

Update bigbluebutton-release

Bump to 2.2.12

 Ejected users due to permission check cannot rejoin meeting

 - users who are ejected from meeting because of permission check cannot
   rejoin meeting as we mark them as banned. Only users ejected by a
   moderator should be banned. Later on, we should make the moderator
   indicate if the ejected user should be bannd or not.

   see https://github.com/bigbluebutton/bigbluebutton/issues/9608

Fix presentation playback on iPad for iOS 13

akka-bbb-apps only listen on localhost

Update bigbluebutton-release

Bump to 2.2.11

Update bbb conf 22

Update bigbluebutton-release

Bump to 2.2.11

attack surface reduction by having akka-bbb-apps only listen on localhost

Adds arrow to toggle user list icon

Update bbb-conf

Added display of kurento.sip_ip

Change shared notes lock behavior 

Add user name to remove user modal

Pulled HTML5 locales May 11, 2020

Fix 'See other viewers in the Users list' lock enforcing lock on 'See other viewers webcams'

Localize default poll options before calculating annotation required space 

Close video preview modal when "share webcam" lock activated

Remove files containing incompatible (to BBB) license

Set correct state in user list for selected user onClick

Adds remove user confirmation