Include files were changed so that opengl is included as #include "SDL_opengl.h"
In some functions suffix const was added since they are const :-)
The function GLQuaternion.set was corrected - there was problem with dividing angle not to half.
It is possible to define GLMATRIX_USE_SSE and GLVECTOR_USE_SSE to enable SSE suport in library.
This is version 0.5.2