Reworked deploy-host role to work on CentOS hosts   - Rearranged enablement of repositories to perform step once   - Rearranged installation of packages to perform step once   - Provider specific repos are appended to required repos   - Centos hosts will install openshift origin release repo   - Logic added to avoid running subscription-manager on non RHEL
Reworked deploy-host role to work on CentOS hosts
  - Rearranged enablement of repositories to perform step once
  - Rearranged installation of packages to perform step once
  - Provider specific repos are appended to required repos
  - Centos hosts will install openshift origin release repo
  - Logic added to avoid running subscription-manager on non RHEL

cwilkers/openshift-ansible-contrib,openshift/openshift-ansible-contrib,cwilkers/openshift-ansible-contrib,pschiffe/openshift-ansible-contrib,cwilkers/openshift-ansible-contrib,openshift/openshift-ansible-contrib,openshift/openshift-ansible-contrib,pschiffe/openshift-ansible-contrib,pschiffe/openshift-ansible-contrib,dav1x/openshift-ansible-contrib,dav1x/openshift-ansible-contrib,dav1x/openshift-ansible-contrib,cwilkers/openshift-ansible-contrib,openshift/openshift-ansible-contrib,dav1x/openshift-ansible-contrib,pschiffe/openshift-ansible-contrib