- theSun becomes static (+setter/getter)
- normalsOnTile() doesn't use global vars anymore
- pie_SurfaceNormal3fv() now works more like the pievector.h functions
- pie_SurfaceNormal3fv() was cleaned up and became inline function in piematrix.h
- Use more pievector.h functions
- Remove unnecessary multiplications/divisions from calcTimeIllum()
git-svn-id: svn+ssh://svn.gna.org/svn/warzone/trunk@3592 4a71c877-e1ca-e34f-864e-861f7616d084