Attribute and logic improvements

This pull requests includes some additional local attributes to help assist with the deployment of our openstack infrastructure. It also changes the testing environment to mimic closer to production with prefixed/suffixed data bags and database names/users. This also fixes osuosl-cookbooks/osl-openstack/issues/14.
Yes, its just a badly named attribute. This is referring to telling openstack where the computes should talk to for the frontend.