Python cgkit-2.0.0alpha8 2.0

The Python Computer Graphics Kit is a collection of Python modules that contain the basic types and functions to be able to create 3D.
The highlight of this release is a new RenderMan binding (module "cri") that is ctypes-based and that links to a renderer's shared library (in the case of Aqsis this can be aqsislib or ri2rib).