- remove presenter group

...s/presentationpod/PresentationUploadTokenReqMsgHdlr.scala

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

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

...bluebutton/core/apps/users/ChangeUserRoleCmdMsgHdlr.scala

...ebutton/core/apps/users/GetPresenterGroupReqMsgHdlr.scala

...e/apps/users/RemoveUserFromPresenterGroupCmdMsgHdlr.scala

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

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

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

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

...scala/org/bigbluebutton/core2/testdata/FakeTestData.scala

...-client/src/org/bigbluebutton/core/model/users/Users2x.as

...ient/src/org/bigbluebutton/main/events/UserJoinedEvent.as

...ent/src/org/bigbluebutton/main/model/users/UserService.as

...n/main/model/users/events/AddUserToPresenterGroupEvent.as

...n/model/users/events/RemoveUserFromPresenterGroupEvent.as

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

...main/model/users/events/UserAddedToPresenterGroupEvent.as

.../model/users/events/UserRemovedFromPresenterGroupEvent.as

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