Blender Git Loki

ID static override: automatically detect new overrides as part of undo step.

We could do that in several different way, e.g. adding some tag during
DEG evaluation, etc. But this is not a critical process (it's main
purpose is user feedback), so current solution seems to work well enough
- and it's dead simple! ;)

ID Static Override: add basic generic UI tools to control override of properties.

Fix merge errors

Merge branch 'blender2.8' into greasepencil-object

New Grease Pencil Offset modifier

Merge branch 'master' into blender2.8

added settings for fluid diffusion (i.e. viscosity and surface tension)

added support for updated manta fire burn function

Cleanup: De-duplicate code in object update routines

updated manta pp files

Cleanup: Split depsgraph uber transform function callback

Cleanup: Remove unused argument

Cleanup: Make object_handle_update easier to follow

Merge branch 'master' into blender2.8

Cleanup: Remove unused function

ID Static Override: add basic UI feedback.

For now, using a new color for overridden properties (similar to
animated/driven status), UI team will need to work on a better solution
maybe...

Merge branch 'master' into blender2.8

Eevee: Fix default shader.

Transform: Avoid use of ob->recalc in snapping code

Do a direct update of object transform instead, without involving
manual trickery of recalc flag.

Shouldn't be functional changes as far as artists are concerned,
but will allow us to get rid of recalc flags in 2.8.

Thanks Bastien for review!

ID Static Override, part II: RNA changes.

This is essentially a huge refactor/extension of our existing RNA
compare & copy code, since static override needs more advanced handling here.

Note that not all new features are implemented yet, advanced things like
collections insertion/deletion are still TODO (medium priority).

This completes the ground work for overrides, remaining commits will be
about UI and some basic/testing activation of overrides for a limited
set of data-blocks & properties.

For details see https://developer.blender.org/D2417