Blender Git Loki

== Surface Brush & Surface Size Lock ==
I now consider surface brush and size lock to be alpha quality now.

* paint brush no longer shows when the model is not hit
* added slider for "surface size" and changed name of "lock brush size" to "Use Surface Size", also fixed issue with surface size only taking effect when you start to sculpt.
* checkbox to activate "draw brush on surface"
* temporary hack to get surface drawn brush to refresh, i force blender to redraw the screen when its on
* Fixing this hack will require that there be a way to tell the "triple" drawing path to save and restore the zbuffer
* if stencil buffer usage is a problem, then maybe it could be a global option
* temporary hack to get surface size and brush size to refresh in real time (just need to do more research on this one)
* Still to-do: drawing the smooth and anchor brushes on the surface correctly