[rdo-dev] Zuul migration complete

[Paul Belanger]

All,

We have officially finished migrating jobs from Jenkins to Zuulv3. Thank you to
everybody that helped, while it took a bit of time, I believe the majority of
jobs worked right out of the box.

Changes to rdo-jobs and config are now open to everybody, please take some time
to get involved in the clean up of zuul-migrate script.  For now, the tripleo-ci
team takes over to clean up the periodic jobs.

Over the next few days, we'll finish cleaning up nodepool resources and start
the process to delete old jenkins jobs from config project.

Thanks again, and look forward to the future.

- Paul