Blender Git Loki

Cleanup: sync map_to_sphere, UNLIKELY xy zero case

Utility script to create release archive

- only include files known to git.
- includes all submodules.
- version extracted from BKE_blender.h for naming.
- MD5 checksum generated.
- 'make tbz' convenience target.

Script by Dan McGrath with own minor edits.

Cycles: tentative fix get rid of os-specific issue in struct ShaderClosure ( aligment issues due order )

Fix T41839, OpenCL error.

Also some style fixes, we don't do the "put as much as possible in 1 line" contest.

Makefile: add 'update' convenience target

Fix Cycles Standalone compile.

Correct invalid sizeof in memset use

Sculpt: check mask is present before reading

Correct last commit

Cleanup & typo in assignment

typo correction in the python API

Fix T41811: unreachable code in wm_keymap.c

There was also an issue with passing sl->spacetype here, for some reason...

Fix T41800: Freestyle + Cycles panoramic camera not compatible, renders are incorrect.

Fix scons leaving partially generated files when aborting

OSX: Fix cmake3 usage

Fix T41788: bmesh.utils.loop_separate, face_vert_separate() always return None

Cleanup & remove redundant check

Fix T41780

Expose sliders for alpha over/under/overdrop
Now it's apparent that the effects work as explained in the manual.

Fix related to T41780, sequencer weirdness with alpha under effect

Fix alpha under equation according to porter-duff and user docs that
state that effect should invert he order of channels and reduce to alpha
over when factor is 1.0.

BTW, we don't really expose any factor here...lost feature from 2.49?

Tracking: Fix wrong behavior of refining with previous frame matching