Determine cluster command from rabbitmq help (3.0 uses join_cluster)
Fix so that 3.0 waits for nodes to launch before clustering
Remove temporary mnesia-directory, enabling restarts
Remove unused port variable
Handle the 3.0 port redirect (55672 -> 15672)
Merge branch 'rabbitmq-3.0-support'
Start RMQ management on different ports in 2.x and 3.x