Blender Git Loki

Fix crash running in background mode, after recent changes.

Cleanup: move unneeded struct out of DNA.

The real reason is that there is a conflict between Carbon header defining
a "Collection" struct, and this works around it.

Merge branch 'blender2.8' into greasepencil-object

Cleanup: use function to free weights

Tool System: set cursors for draw & transform

Tool System: support for tool cursors

Fix operator execution resetting the cursor

Area and region are NULL in the context if the operator finishes.

Fix manipulator resetting the cursor

Merge branch 'master' into blender2.8

Logging: add --show-log-backtrace

Useful in debug builds to see a functions callers.

Replace CFRA with Depsgraph time to fix animation

The animation was not working because the number of current frame was not evaluated from depsgraph.

Merge branch 'blender2.8' into greasepencil-object

Tool System: store the active tool in ScrArea

Without this we need to have the context to get the
(space_type, mode) args for an active tool lookup.

For event handling & poll its more convenient to have direct access.

Cleanup: unused DNA

Cleanup: use '_Runtime' suffix

Allows for more easily finding runtime versions of any struct.

Tool System: add cursor (currently unused)

Cleanup: remove tool definition access function

No longer needed since names not values are compared
when checking if a tool is active.

Color: Assume Rec 709 in remaining comp nodes

Part of T54798

Tool System: tools now initialize on startup

RNA: quiet warning

Harmless but annoying.