matplotlib Code

make python 2.4 a requirement, bump version to 0.9.9.1

add runtime_library_dirs to _geos Extension initialization.

forgot that setuptools still needed for package_data in python 2.3

remove setuptools requirement.

took out namespace package stuff (because I don't understand it,
and it apparently is not needed).

look in /opt/local for geos lib (macports installs there)

install dap client anyway if installed version is older.

search in lib64 too.

try to automatically detect GEOS lib location (instead of forcing user
to set GEOS_DIR env var). On Leopard, env vars don't get passed by
sudo.

bump version number