Sort mailing lists in alpha order

* modules/openstack_project/manifests/lists.pp: Sorted for ease of
management and to reduce parallel change merge conflicts in the
future.

Change-Id: I12240060e30114bd0a455768f498681b7a2c232c
Add new mysql_backup module.

The puppetlabs mysql modules has a backup class which seems to be too
smart for its own good. Create a simple module with a backup define that
allows us to backup specific databases independently.

Change-Id: If8a68b254ab1df61a1c9f99f8484a6ebd2e66944
Merge "Sort mailing lists in alpha order"
Merge "Add new mysql_backup module."