Merge branch 'antobinary-fix-webcam-state' into bbb-2x-mconf

...ton/core/apps/presentation/SetCurrentPagePubMsgHdlr.scala

...rc/main/scala/org/bigbluebutton/core/models/Users2x.scala

...in/scala/org/bigbluebutton/common2/msgs/MessageBody.scala

...g/bigbluebutton/modules/users/services/MessageReceiver.as