Log message:
Mark packages that are not ready for python-3.3 also not ready for 3.4,
until proven otherwise.

Log message:
-py-redis-py. Imported to HEAD/databases.

Log message:
Mark packages as not python-3.x ready where appropriate.

Log message:
Mark packages as not ready for python-3.x where applicable;
either because they themselves are not ready or because a
dependency isn't. This is annotated by
PYTHON_VERSIONS_INCOMPATIBLE=  33 # not yet ported as of x.y.z
or
PYTHON_VERSIONS_INCOMPATIBLE=  33 # py-foo, py-bar
respectively, please use the same style for other packages,
and check during updates.

Use versioned_dependencies.mk where applicable.
Use REPLACE_PYTHON instead of handcoded alternatives, where applicable.
Reorder Makefile sections into standard order, where applicable.

Remove PYTHON_VERSIONS_INCLUDE_3X lines since that will be default
with the next commit.

Whitespace cleanups and other nits corrected, where necessary.

Log message:
Import py27-epigrass-2.3.1 as wip/py-epigrass.

Epigrass is a software for visualizing, analyzing and simulating of
epidemic processes on geo-referenced networks

EpiGrass can interact with the GRASS GIS from which it can obtain maps and other
geo-referenced information. However, EpiGrass does not require an installation
of the GRASS GIS for most of its features.