* Added RabbitMQ with clustering
* Moved to `rdaneel` base repo on Docker hub
* Wrong tag for `rdaneel/rabbitmq-conf`
* merging @andyshinn and @inabhi9 work
* merging @andyshinn and @inabhi9 work
* erlang cookie moved under environment instead of entrypoint
* added defaul cookie
* Aligned to dockerfile description
* bullets