Begin working on concurrency stress tests
Correct reference doc
Respect autorecovery setting in Transport

Make sure transport kicks off connection recovery the same way network activy loop does
Tighter synchronization so that stress tests pass on JRuby

Writing to the socket has to be synchronized because a frame
is an interleaving unit in the wire protcol. Per discussion
with the RabbitMQ team.
Add consistent hash exchange tests
Guard the consistent hash exchange tests on CI
Future-proof before_build.sh
Finish publishers stress test
Sleep a bit longer to make sure all messages are always routed