E&S CVS Commit: Trellis - Prevent time-based rules from being able to create spurious

[pje at eby-sarna.com]

Author: pje
Date: Fri May  9 14:01:22 2008
New Revision: 2538

URL: http://svn.eby-sarna.com?rev=2538&view=rev
Log:
Prevent time-based rules from being able to create spurious
circular dependencies.

Modified:
    Trellis/peak/events/activity.py
    Trellis/test_trellis.py