- do not use users model

...n/scala/org/bigbluebutton/core/apps/BreakoutRoomApp.scala

...rc/main/scala/org/bigbluebutton/core/apps/LayoutApp.scala

.../src/main/scala/org/bigbluebutton/core/apps/PollApp.scala

...n/scala/org/bigbluebutton/core/apps/PresentationApp.scala

...src/main/scala/org/bigbluebutton/core/apps/UsersApp.scala

...c/main/scala/org/bigbluebutton/core/apps/UsersModel.scala

...scala/org/bigbluebutton/core/models/RegisteredUsers.scala

.../src/main/scala/org/bigbluebutton/core/models/Users.scala

...in/scala/org/bigbluebutton/core/running/LiveMeeting.scala

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

...scala/org/bigbluebutton/core/running/RunningMeeting.scala