Blender Git Loki

Lowercase includes for psapi.h and dbghelp.h windows includes.
This makes cross compilation a little less painful

CacheFile: make sure SpinLock is destroyed when exiting Blender.

Missed in rB62b1cdd6.

Cycles: Fix typo that would sometimes result in subsurf modifier being disabled

Fix T49245: Adaptive Subdivision with Auto Smooth causes weird mesh appearance

Fix T49384: crash in tangent space calculation with NaN mesh vertices.

Fix T49372: Fresnel node: difference between 2.76 and 2.78 GLSL output

Fix filebrowser not getting back to valid dir in Release builds.

Stupid mistake wrapping path validation code inside a BLI_assert, which means it was
only called in Debug builds...

Found by Sergey, thanks.

Should be backported to 2.78.

Fix crash in some cases when deleting particle systems.

Those 'never null' ID pointers are really a PITA to handle... luckily we don't have much of those around!

Found by Sybren, thanks.

Should be backported to 2.78.

Fix Py's IDs user mapping: do not consider ShapeKeys' from here.

This is internal pointer helper for scene evaluation and tools, though exposed to bpy API,
it can give false 'dependency cycles' in bpy.data.user_map() results.

That's followup to rBe007552442634 really, both should be backported to 2.78

Fix Py's IDs user mapping: do not consider proxy_from here.

This is internal pointer helper for scene evaluation and tools, it's not exposed to bpy API anyway,
and can give false 'dependency cycles' in bpy.data.user_map() results.

Found by sybren in his Splode work.

Fix T49179: Parts of mesh disappear with adaptive subdivision

Problem was zero length normal caused by a precision issue in patch evaluation.
This is somewhat of a quick fix, but is better than allowing possible NaNs to
occur and cause problems elsewhere.

fix Mac build with Xcode 8

Small issues in GHOST
- use NSApplicationDelegate protocol for our app delegate
- make sure NSApp is initialized before using
(cherry picked from commit df7be04ca6d4b6dccc998445386228699d72d072)

Fix memory leak in copy pose operator

Merge branch 'temp_manipulators_core' into wiggly-widgets

Had to merge again to port over fixes from temp_manipulators_core.

Conflicts:
source/blender/editors/space_api/spacetypes.c

Fix 3 bugs causing startup to fail in wiggly-widgets branch

Make branch compile again after latest changes in temp_manipulators_core

Merge branch 'temp_manipulators_core' into wiggly-widgets

Conflicts:
source/blender/blenkernel/BKE_screen.h
source/blender/editors/space_api/spacetypes.c
source/blender/makesdna/DNA_view3d_types.h
source/blenderplayer/bad_level_call_stubs/stubs.c

Merge branch 'master' into wiggly-widgets

Conflicts:
source/blender/blenloader/intern/versioning_270.c
source/blender/editors/interface/resources.c

Merge branch 'master' into temp_manipulators_core

Use GPU_glew.h to include glew