Merge pull request #5298 from OZhurbenko/akka-create-default-pods-groupchats

...n/core/apps/groupchats/CreateDefaultPublicGroupChat.scala

...la/org/bigbluebutton/core/apps/groupchats/GroupChat.scala

...g/bigbluebutton/core/apps/groupchats/GroupChatHdlrs.scala

...n/core/apps/groupchats/SyncGetGroupChatsInfoMsgHdlr.scala

...e/apps/presentationpod/CreateDefaultPresentationPod.scala

.../presentationpod/CreateNewPresentationPodPubMsgHdlr.scala

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

...utton/core/apps/presentationpod/PresentationPodsApp.scala

...main/scala/org/bigbluebutton/core/models/GroupChats.scala

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

.../org/bigbluebutton/core2/FromAkkaAppsMsgSenderActor.scala

.../org/bigbluebutton/core2/message/senders/MsgBuilder.scala

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