Project: mesos
Issue MESOS-2909: Add version field to RegisterFrameworkMessage and ReregisterFrameworkMessage
In the same way we added 'version' field to RegisterSlaveMessage and ReregisterSlaveMessage, we should do it framework (re-)registration messages. This would help master determine which version of scheduler driver it is talking to. We want this so that master can start sending Event messages to the scheduler driver (and scheduler library). In the long term, master will send a streaming response to the libraries, but in the meantime we can test the event protobufs by sending Event messages.
Story points: 3