Merge pull request #4626 from ritzalam/appply-permissions-on-messages

.../presentationpod/CreateNewPresentationPodPubMsgHdlr.scala

...ps/presentationpod/GetAllPresentationPodsReqMsgHdlr.scala

.../apps/presentationpod/GetPresentationInfoReqMsgHdlr.scala

...pps/presentationpod/RemovePresentationPodPubMsgHdlr.scala

...e/apps/presentationpod/RemovePresentationPubMsgHdlr.scala

.../core/apps/presentationpod/SetCurrentPagePubMsgHdlr.scala

...ps/presentationpod/SetCurrentPresentationPubMsgHdlr.scala

...re/apps/presentationpod/SetPresenterInPodReqMsgHdlr.scala

...n/core/apps/users/AddUserToPresenterGroupCmdMsgHdlr.scala

...in/scala/org/bigbluebutton/core/apps/users/UsersApp.scala

...scala/org/bigbluebutton/core/running/HandlerHelpers.scala