adds share/load/check webcams test specs with multi users

adds audio emulation and mute other user test considering isTalking indicator #12

Move quick poll button to presentation tool bar

Replace use of $ jquery with javascript in webcam-draggable-overlay

We removed jquery in BBB 2.2.x as it was not used. Here we have an easy
replacement for jquery in the face of pure javascript. This way we do
not need to re-import jquery package as dependency.

Fix client crash race condition with presentation pods

Fix client crash when client is unsecured

Sort private chat messages by last activity

Don't recommend Firefox or Chrome for WebRTC when Puffin is being used

Fix chat names with emoji's being clipped

Merging 2.2.2 into 'develop'

Track listen only ICE connection state to trigger reconnections

Bump 2.2.2 -- fixed kurento symbolic link /var/kurento ->  /var/lib/kurento

This reverts commit 6c571264.

Bump 2.2.1

Reword media error strings to be more human friendly

Force a stacking context to be created for the media container

Remove the minMessageLength warning from chat

Pulled HTML5 locales March 6, 2020

Track listen only ICE connection state to trigger reconnections