matplotlib Code

added pnpoly for better poly hit testing

made numpy the default for win32

let setuptools tag version

fixed reg exp for finding svn rev

Added _isnan extension module to test for nan with Numeric

subprocess module built if Python <2.4 even if subprocess
can be imported from an egg - ADS

Added _subprocess.c from Python upstream and hopefully
enabled building (without breaking) on Windows, although
not tested. - ADS

added **kwargs to all backend_*.print_figure
methods to provide papertype kwarg to backend_ps

fixed landscape orientation for usetex option

added subprocess module from python-2.4

removed CVS directory detection for developer version tag, and added .svn revision detection.

.svn directories were getting added to the packages, so I filtered them out. Also testing svn.