- add reason, role, external user id on feedback info when client lo…

Fix video display for webcamsOnlyForModerator 

Fix role change and page reload not taking in account webcam display when webcamsOnlyForModerator is on?

Add friendly iteration on audio settings retry

Add JSP for HTML5 Video Chat

Add meta params for auto share the webcam, auto swap the layout and disable presentation.

Prevent client breaking when settings are saved while userlist is-open

Fix private chat messages

Merge branch 'change-user-role-bbb-web' of https://github.com/riadvice/bigbluebutton into riadvice-change-user-role-bbb-web

Fix handling webcam videos that end early in recording processing

In some cases (due to network issues), the webcam video can be shorter
than the time between the start/stop events. Pad the input video with a
blank video to make sure that there's input to the video tiling filters,
to fix a problem where the video won't render correctly with ffmpeg v3.4
and later.

Show lock image if webcamsOnlyForModerator is enabled

Include WebRTC webcams in processed recordings

Fix centering screenshare video

Delete centering videoHolder in all cases from ScreenshareViewWindow

Fix full-size screen-sharing issue