Attempting to do things the "ansible way".

* Brought in changes to nova_groupo ansible module
* Chaning items around instance create (create keys, security groups,
  floating ips, and allow ansible to wait for port 22 to listen).
* Removed extra items from setup which are now simplified by
  ansible.
Merge pull request #191 from retr0h/blueboxgroup/nova-group-module

Attempt to do things the Ansible way