Merge pull request #4845 from capilkey/fix-presentationpod-reconnect

.../apps/presentationpod/GetPresentationInfoReqMsgHdlr.scala

...tton/core/apps/presentationpod/PresentationPodHdlrs.scala

...ton/core/pubsub/senders/ReceivedJsonMsgHandlerActor.scala

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

...org/bigbluebutton/common2/msgs/PresentationPodsMsgs.scala

...ton/main/model/users/events/RequestPresenterGroupEvent.as

...rg/bigbluebutton/modules/present/business/PresentProxy.as

...gbluebutton/modules/present/events/RequestAllPodsEvent.as

...modules/present/events/RequestPresentationInfoPodEvent.as

.../bigbluebutton/modules/present/managers/PresentManager.as

...g/bigbluebutton/modules/present/maps/PresentEventMap.mxml

...luebutton/modules/present/model/PresentationPodManager.as

...utton/modules/present/services/messaging/MessageSender.as