* base/textures png crush.
* Reduced filesize of the tex_base textures folder by compressing/optimizing the .png files with pngout
* Converted some textures to indexed colors (8bit=256 colors) to optimize filesizes and improve loading performance
* Replaced lab_floor001-002 and lab_wall001-003 .jpg textures with high quality, high resolution .png versions (lab_floor1.png has the same resolution as the old .jpg), updated LICENSES