A nice BDR tip

Jeremy wrote a sweet patch for Bodhi that enables it to run migrations with BDR enabled without me having to ask admins to run SQL scripts. I tested his patch with Bodhi 2.7.0 beta on staging today and it seems to work: https://github.com/fedora-infra/bodhi/pull/1494 So if you are looking for a nice way to become "BDR compatible" while still being able to use "alembic upgrade head", this is a nice way to do it and it should be possible to apply similar code to our other projects. Jeremy and I also discussed about whether a similar patch should go upstream. He suggested that upstream might just say that we should do what we did, so maybe we could just send them a documentation "tip" about this or something?