Blender Git Loki

mesh/animation exporters didnt work when there were no 3d views open, because the Blender.Set('curframe', i) called a update command that resulted in no viewable layers updating.

Made Blender.Set('curframe', i) do a
scene_update_for_newframe(G.scene, (1<<20) - 1);

removed 2 unused constants from Scene.c