Better use of booleans for python
#include fixes for Windows
Python Doc fixes
Use the farthest vertex as the face position when z sorting faces. (Camera is on -z axis!)
Depth sorting for Transparent polygons. Use ZTransp in Material buttons to enable.
This will cause an object's polygons to be sorted (back to front for alpha polygons, front to back for solid polygons.)
[SCons] Build with Solid as default when enabling the gameengine in the build process
[SCons] Build solid and qhull from the extern directory and link statically against them
That was about it.
There are a few things that needs double checking:
* Makefiles
* Projectfiles
* All the other systems than Linux and Windows on which the build (with scons) has been successfully tested.
