More features and bugfixes

Merge pull request #26 from veger/make_ports_configurable

Make ports configurable

Ansible 2.2, clustering out of box

v0.0.3

Update README.md

Compatibility with ansible 2.2

Merge pull request #25 from homelessnessbo/master

Make rabbitmq-role great again!

Initial tagged release

This is just initial release, you should stick to it in case you used master branch.