Disable tcp listener if address is blank
Fix the test VM which was not listening anywhere

The test configuration was turning off the SSL listener, but since there
was no TCP address listener given in the test configuration RabbitMQ was
running without any listening address.
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