E&S CVS Commit: Trellis - Add porting guide, and tests/changes to match it.

[pje at eby-sarna.com]

Author: pje
Date: Wed Apr 23 14:03:56 2008
New Revision: 2526

URL: http://svn.eby-sarna.com?rev=2526&view=rev
Log:
Add porting guide, and tests/changes to match it.

Added:
    Trellis/Porting.txt   (with props)
Modified:
    Trellis/Internals.txt
    Trellis/README.txt
    Trellis/peak/events/trellis.py