zookeepr/zookeepr — pull request #214 by iseppi (2012-09-23 16:51:09+00:00)
Title: Chained ceilings

* Upgrade alembic dependency to 0.3.6 to support self-referential joins
* Add parent ceiling so that ceilings can be chained together
- Parent ceilings allow one ceiling to depend on another not being available before it will become available