QPID-4327: HA support for TX transactions - fix auth bugs.

- Set auth info on status check connections
- Clean up status check loging
- Use realm@username for authentication name (was using just username)

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1521190 13f79535-47bb-0310-9956-ffa450edef68
QPID-4327: HA support for TX transactions - consistent use of QueueRegistry::get

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1521191 13f79535-47bb-0310-9956-ffa450edef68
QPID-4327: HA support for TX transactions - fix TX error messages.

- Ignore un-replicated queues when replicating transactions.
- Clean up cancel logic in QueueReplicator, causing "no such subscription" errors.
- Remove unnecessary exchange delete warnings
- ha_test.py: Shorter timeout for starting cluster brokers.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1521192 13f79535-47bb-0310-9956-ffa450edef68