Returning isBreakout conference state in join and enter API calls.

...button-client/src/org/bigbluebutton/core/model/Meeting.as

...client/src/org/bigbluebutton/core/model/MeetingBuilder.as

.../src/org/bigbluebutton/main/model/ConferenceParameters.as

...ient/src/org/bigbluebutton/main/model/users/Conference.as

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

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

...rs/org/bigbluebutton/web/controllers/ApiController.groovy