- merging latest v20-release branch

...b/src/main/java/org/bigbluebutton/api/MeetingService.java

...gbluebutton/web/services/callback/CallbackUrlService.java

...g/bigbluebutton/web/services/callback/ICallbackEvent.java

...igbluebutton/web/services/callback/MeetingEndedEvent.java

bigbluebutton-client/locale/en_US/bbbResources.properties

...odules/screenshare/view/components/AnimatedProgressBar.as

...reenshare/view/components/WebRTCDesktopPublishWindow.mxml

...-html5/imports/ui/components/video-provider/component.jsx

bigbluebutton-html5/private/config/settings-development.json

bigbluebutton-html5/private/config/settings-production.json

bigbluebutton-web/grails-app/conf/spring/resources.xml

labs/bbb-webrtc-sfu/config/default.example.yml

labs/bbb-webrtc-sfu/lib/mcs-core/lib/constants/Constants.js

labs/bbb-webrtc-sfu/lib/mcs-core/lib/media/MCSApiStub.js

.../bbb-webrtc-sfu/lib/mcs-core/lib/media/MediaController.js

labs/bbb-webrtc-sfu/lib/mcs-core/lib/media/media-server.js

...bbb-webrtc-sfu/lib/mcs-core/lib/model/RecordingSession.js

labs/bbb-webrtc-sfu/lib/screenshare/screenshare.js

labs/bbb-webrtc-sfu/lib/video/video.js

labs/bbb-webrtc-sfu/package-lock.json