Adding support for rabbitmq-env.conf
Adding an entry in defaults/main for rabbitmq-env.conf support.
Adding support for non-default nodes
Fixing whitespace.
Remove rabbitmq_env by detecting if rabbitmq_conf_env is defined or not
Update the README to match the last variable change
Merge branch 'pr_8'

Conflicts:
	vars/test.yml
Add a section about installation and versionning in the README
Fix README chapter importance
Added tests for basic standalone install

* Preparing for clustering work.
* Renamed the Vagrant host to standalone so we can add a set of nodes for
  clustering.
* Removed the rabbitmq_policy this is now in upstream ansible.
* Moved attributes from the Vagrantfile to params in the playbook.
* Added integration tests for this baseline functionality.
Updated with new changes from master
Flush handlers before tests begin