Blender Git Loki

Merge branch 'blender2.8' into custom-manipulators

Merge branch 'blender2.8' into custom-manipulators

Merge branch 'blender2.8' into custom-manipulators

This removes graph 3d render feature, also use same variables as master
for SpaceNode.

The feature (could be added back if needed),
but didn't get such a positive functionality review, see D1781,
although this is still an open topic.

Merge branch 'blender2.8' into custom-manipulators

Merge branch 'blender2.8' into custom-manipulators

Merge branch 'blender2.8' into custom-manipulators

Merge branch 'blender2.8' into custom-manipulators

Note, this doesn't use the changes from 2.8x, since the code was so different.
Move to use imm API will need to be done manually.

Merge branch 'blender2.8' into custom-manipulators

Merge branch 'blender2.8' into custom-manipulators

Merge branch 'blender2.8' into custom-manipulators

Merge branch 'blender2.8' into custom-manipulators

Merge branch 'blender2.8' into custom-manipulators

Merge branch 'blender2.8' into custom-manipulators

Merge branch 'blender2.8' into custom-manipulators

Add missing header (for abort)

Merge remote-tracking branch 'origin/master' into temp-cycles-denoising

Grr, fix stupid typo in previous commit...

Always build before committing :|

Merge branch 'master' into datablock_idprops

Cleanup - resync with master, this needs to be fixed in master first!

Fix another case of bad logic in recurrent function handling IDProps.

And some generic cleanup/styling/etc.