Merge pull request #4622 from ritzalam/screenshare-chapter-breaks

...n/scala/org/bigbluebutton/core/running/MeetingActor.scala

.../main/java/org/bigbluebutton/app/screenshare/Meeting.java

...ava/org/bigbluebutton/app/screenshare/MeetingManager.java

...n/java/org/bigbluebutton/app/screenshare/VideoStream.java

...rg/bigbluebutton/app/screenshare/VideoStreamListener.java

...ton/app/screenshare/events/RecordChapterBreakMessage.java

.../bigbluebutton/app/screenshare/red5/EventListenerImp.java

...rg/bigbluebutton/app/screenshare/red5/Red5AppAdapter.java

...n/app/screenshare/redis/ReceivedJsonMsgHandlerActor.scala

.../app/screenshare/server/sessions/ScreenshareManager.scala

...n/app/screenshare/server/sessions/messages/IMessage.scala

bbb-screenshare/app/src/main/webapp/WEB-INF/red5-web.xml