updating protocol
Updating brokr to match protocol.

Pubsub added and complete according to protocol. New pubsub.test.js
added to test pubsub basics
forgot to add the new pubsub test file
Removed the client uuid.

There is no need to identify clients to each other. They should
never talk directly. Ever. You could build something on top of the
RPC that would do inter-client communication, but that is not
a part of the brokr protocol.