Use helpers from new crowbar-openstack cookbook
Fix registering heat domain when keystone is deployed with HA

We were not contacting the right hostname.
Merge pull request #84 from vuntz/openstack-helper

Use helpers from new crowbar-openstack cookbook
Merge pull request #85 from vuntz/keystone-ha

Fix registering heat domain when keystone is deployed with HA
Make config files owned by root:heat, instead of heat:root

We don't want the heat user to be able to write the files.
Fix ownership and permissions of directories
Merge pull request #87 from vuntz/fix-owner

Make config files owned by root:heat, instead of heat:root