Blender Git Loki

Fix issues reported by gcc address sanitizer

* paint curves and palettes should be freed after brushes
* out of bounds write in transform code.

Fix T40128, curve operators "leaked" in non-paint modes

progress bar display fix attempt, still glitchy...

Use operand for masking. Corrects loading a file with masking not
showing the color.

Tweaks to mask brush:

* Paint the "correct" value independent of inverted mask.
* Always turn on masking when painting with the mask tool.

Reshuffle OpemSubdiv libraries in order to solve linking errors

No idea why it worked before.

Merge branch 'master' into opensubdiv-modifier

partial fix for progress display (can still exceed progressbar) and fix of a memoryleak when halving only

Fix swimming textures on 2D painting with textured brushes + pressure.

When sampling the old texture buffer we need to account for the diameter
change in the sampling offset as well.

Make sure mesh is updated when we change the stencil layer. Takes care
of updating the stencil preview.

Merge branch 'master' into soc-2013-paint

Conflicts:
source/blender/editors/sculpt_paint/paint_image_2d.c

copied derivedmesh was not freed after usage

Merge branch 'master' into soc-2013-paint

Support inverting the mask brush value

Fix fill brush threshold not exposed after recent UI changes.

Disable stencil masking if there's no stencil image set.

Merge branch 'master' into soc-2013-paint

and even more gui cleanup

further gui cleanup

fracture gui cleanup