Add template for single node instance of OpenShift

This has been tested on CentOS 6.5 as far as the deployment guide
indicates in section 11:
http://openshift.github.io/documentation/
oo_deployment_guide_comprehensive.html#testing-the-configuration

Change-Id: I40766a46fb45e618e35a4f7a3662bd693ac8613c
Merge "Add template for single node instance of OpenShift"