Blender Git Loki

bmeshafied uv unwrapping ops. for lcsm (unwrap), which only takes triangles, I used scanfill to tesselate ngons, which mostly works. scanfill however doesn't always generate nice enough tesselations for lcsm to work properly; the solution is to write a version of beauty fill (which basically turns an arbritrary triangulation into a constrained delauney triangulation) for scanfill, and use it to clean up the tesselations.