be9/acl9 — pull request #44 by smeevil (2011-11-24 09:11:15+00:00)
Title: Backward compatible fix for rails 3.1.x

Hi there,

I added the join_table_name from rails 3.1 which was deprecated/moved since 3.0.9
This will make the gem work as advertised again without requiring it the extra option :join_table