Sleep for 5s after a failure due to a node being down before reporting
back to stream coordinator (which will immediately retry).
stream coordinator: correct command type spec
tidy up
fix rabbit_fifo_prop tests
stream coord: add function for member state query
Detect when a new stream leader is elected and make stream_queues
re-send any unconfirmed, pending messages to ensure they did not get
lost during the leader change. This is done using the osiris
deduplication feature to ensure the resend does not create duplicates of
messages in the stream.
dcorbacho
kjnilsson
Michael Klishin
Arnaud Cogoluègnes
Philip Kuryloski