Fixed translucent midtextures being opaque when there were multiple lights in a sector.
OpenGL skyboxes. Slight change to sky vertical offsetting.
MD2's that replace mobjs that have a skin, but the skin doesn't have an MD2 now display.
MD2's can be translucent again. MD2's can use sprites instead of another random texture if they have no texture. Patches are drawn in the correct place on non aspect correct resolutions. Cropped Patches are drawn.