The CSVs are now the only package data. Otherwise, setuptools would
copy every single sprite individually to the standard library directory,
which is slow and time-consuming and wasteful. If you need the sprites,
use them from the repo. :(
The package_data line was still wrong.
Also turned off zip_safe, since it's really not; pokedex setup tries to
write to the install directory!
Finally, bumped the whoosh version; the beta I required has been taken
off pypi, and the bugs in b6 seem to be gone now.
