Blender Git Loki

subdivide smooth now works as in trunk.
- r35832 joeedh removed this with comment "removed the "smoothness" parameter (which never worked, anyway, even in trunk)", not sure I agree here... just because its not perfect doesnt mean its not working, anyway, to support in bmesh at the same level as trunk is not much effort.
- calculating the coordinates was being done on every shape key, I can see this could be useful to subdiv worked on all shape keys BUT the existing code didnt do this properly, for it to work right the normals would need to be updated for each shape key too when calculating smoothing, so now just calculate the new subdivided location and apply the difference to all other shape keys.