Implementation of triangle triangle intersection test.
"A Fast Triangle-Triangle Intersection Test", Tomas Moller

Implementation of AABB-triangle overlap test
"Fast 3D Triangle-Box Overlap Testing", Tomas Akenine-Moller

Code from: http://fileadmin.cs.lth.se/cs/Personal/Tomas_Akenine-Moller/code/
Public domain.
