the MRCI protocol has been upgraded to support branch ids
so running multiple instances of the same command can run
at the same time at the host side. this client however
will still continue to run host commands in FIFO but this
is something that can be added in the near future.
another change to the protocol is the version negotiation
is now entirely one-sided so just the client can now
decide of the host version is acceptable or not.
the NEW_CMD frames from MRCI host will now include all of
the command documentation so listing of all available
commands and documentation is now entirely client
controlled because the host no longer have built in
documentation commands.
this client's Session object now operate in it's own
thread. for now, this does nothing but this is a prelude
for future performance updates that will including
multi-threading.
