Misc updates for F19
* Run RHC spex tests outside selinux jail
* Add github.com to ssh config file and turn off StrictHostKeyChecking
* Ensure that network services are restarted after install to pick up DNS server config
Merge pull request #70 from kraman/f19_libvirt

Merged by openshift-bot
Fixing restart order of services for F19
Fixes to use official F19 cloud image
Removing custom user creation in cloud-init as RHEL images do not support it
Use the dns_name instead of public_ip in config so that SSH doesn't give a hostname warning
Merge pull request #71 from smarterclayton/use_dns_name_in_ssh_config

Merged by openshift-bot
Updating doc task