E&S CVS Commit: Trellis - Mark some things private so they don't show in help(); add

[pje at eby-sarna.com]

Author: pje
Date: Fri Jul 27 21:14:21 2007
New Revision: 2370

URL: http://svn.eby-sarna.com?rev=2370&view=rev
Log:
Mark some things private so they don't show in help(); add
docstrings to other things so they *do* show.  Improve
error message for trying to recalculate a Constant, and
break the reference cycle created between a Component and
a Constant that was formed by a rule.

Modified:
    Trellis/Internals.txt
    Trellis/peak/events/trellis.py