[rdo-list] OpenStack Puppet Module format change (Newton-forward)

[Alan Pevec]

> The previous way of handling Puppet modules for RDO was to bundle them all
> together into a single "OpenStack-Puppet-Modules" package. This involved a
> lot of thankless manual work to merge all the modules into a single
> repository [1]. This will still be the case for Kilo, Liberty, and Mitaka
> releases.
...
> [1] https://github.com/redhat-openstack/openstack-puppet-modules

Important to note is that OPM starting Liberty is currently _without_
downstream patches, thanks to the work done by EmilienM and jayg !
Updates on stable/mitaka[1] and stable/liberty[2] branches are pure
upstream merges.

Cheers,
Alan

[1] https://github.com/redhat-openstack/openstack-puppet-modules/commits/stable/mitaka
[2] https://github.com/redhat-openstack/openstack-puppet-modules/commits/stable/liberty