NUBIC/dagnabit — pull request #1 by turadg (2012-11-07 23:02:28+00:00)
Title: Use AREL for children and parent relationships

I rolled my own DG but didn't have any cyclicity checks. I was happy to find this. But code like this stopped working:

vertex.children << child_vertex

I saw that was because `children` and `parents` were written using queries instead of AREL. This commit bundle uses AREL for those, ups the minimum ActiveRecord to 3.x to get AREL, and bumps the version number to 3.2.0.beta.

Thoughts? btw, I tried running the tests but ran into problems with permission to drop language.