Add process handler to image conversion in SvgImageCreatorImp.java

Added onunmute listener to MediaStreamTrack

Improve handling of slides failing to load (tomcat memory issues)

 - changing aliases to use meeting_id_2 instead of meeting_id_1 just in case we need to make the URL params different

Merge branch 'v2.0.x-release' of github.com:bigbluebutton/bigbluebutton into improve-log-on-presentation-conversion

Add "recordingmarks" to end meeting callback url

Updated SVG conversion to simplify complex files

Improvements to Safari WebRTC interop and SFU listen only

Also fixed a resource leak on listen only fallback and transitioned the SFU listen only from a tag-based approach to MediaStream

Maintain array of user roles so they are unique

Add `filename` attribute for file pre-upload using an URL

Recording fixes for BBB 2.0

It was previously trying to get the presentation name from the wrong variable,
which resulted in a nil value (which was treated as a blank string in
filenames). This caused the poll images to not be inside the presentation
subdirectories, and the poll image references in the svg contained a `//`
path, which would break the recording if it was uploaded to e.g. AWS S3.

Improve client logging for screensharing

Reduce adapter.js version in Flash client

   Deploy to /etc/bigbluebutton/nginx

Revert "Update API to display if the user is sharing his screen and what screen-sharing type he is using."

This reverts commit 72d7e17f.

Update adapter.js in the Flash client and make sure it loads in correct order

Fix error handling when client parts fail to load

Improve codec availability detection in SFU

Make Flash WebRTC screenshare use RTMPS when available