#3 Cygwin building

[Dave Jones]

After a bit of experimentation I've managed to get
PyDB2 building and working with Python under Cygwin (on
Windows 2000). However, it required adding a few lines
(3) to the setup.py script and some external actions
(generating a libdb2cli.a file) to get it working.

If you'd like to include these updates (hopefully in a
slightly cleaner fashion than I've managed!) in the
official release I'd be happy to share the details.

Thanks, Dave.