- fixed model loading code
- added simple model viewer (model_test) in src/graphics/opengl/test
- added system time stamp code
- split the code in app/system modules to separate headers
- added debug messages in model loading
- minor fixes in OpenGL engine
- moved texture-related structs to texture.h & code to texture.cpp
- cleaned up texture test code
- added Math:: namespace qualifiers to math modules for clarity
- added CImage class for loading/saving images and a simple test for it
- added libpng library to build
- added Gfx::Texture struct
- updated the Gfx::CDevice interface to include new features
- implemented the new features in Gfx::CGLDevice
- extended Gfx::CDevice interface
- written OpenGL implementation in Gfx::CGLDevice
- rewrote color and light module
- added Gfx::VertexCol
- added array casts to Math::Vector, Math::Matrix and Gfx::Color
- added CDevice abstract interface
- began implementation of CGLDevice
- added stub for Texture struct
- created CGLDeviceConfig
- changed particule -> particle & other minor changes