UFO:Alien Invasion Code

* base/textures png crush.

* crushed png files

* Texture optimizations: reduced file size, resized textures and removed an unnecessary texture from a map

* Reduced filesizes and optimized loading performance of floor005 and jungle002 diffuse textures and specular maps by converting those to 8bit indexed colors and recompressing them

* [TEXTURE_.MAP_RESCALE-tex_buildings/floor005-0.5-0.5] * Rescaled all floor005 textures on all map files and prefabs * Replaced floor005 texture with new high-res texture by Nobiax (OGA), added floor005_sm (Nobiax as well), removed old floor005_nm, updated LICENSES
* Fixed bad rendering of the tropical plant models' bottom trunks on city_disco main, stadium_main and resort maps

* Reduced filesize of the tex_buildings textures folder by compressing/optimizing the .png files with pngout

* GPL'd some floor textures