Blender Git Loki

Fix pop-over buttons always getting space for icon

Merge branch 'master' into blender2.8

Cleanup: swapped X/Y UI_UNIT

Merge branch 'master' into blender2.8

Conflicts:
source/blender/blenkernel/intern/blendfile.c
source/blender/blenkernel/intern/node.c
source/blender/blenkernel/intern/particle.c

Cleanup: remove more G.main from BKE area.

UI: adjust view navigation layout

Button layout now matches T54723.

UI: HUD now follows region theming

Depsgraph: Avoid use of 0 tag flag on build finish

Use all the explicit tagging. Solves characters being in T-pose after
opening specific scene files.

UI: show HUD when region overlap is disabled

UI: fix hud panel refresh glitch

UI: shorten proportional edit name

Didn't fit in panel.

UI: redo panel layout tweaks

- Don't use compact layout (enum titles were hidden).
- Split-properties to use less vertical space.
- Make panel wider, half width when collapsed.

Fix region expanding on refresh

UI: adjust header alignment

- User preferences header at the bottom.
- Action header at the top.

Now all editors accessible from the menu have their header at the top,
default layout for the timeline remains at the bottom.

UI: Name N-Key toggle to Sidebar

Fix T55376: instanced collection render visibility ignored.

For physics simulation it's still fuzzy though, but this needs bigger
design for how it works with view layers and visibility.

WM: don't show redo hud when unsupported

WM: hide internal operator settings

These are set in the interface and aren't useful to show to users.

Other minor changes

- Rename 'Ruler/Protractor' -> 'Ruler'
- Rename Subdivide 'Quad/Tri Mode' -> 'Create N-Gons' (and invert).

UI: move auto-merge option to mesh options panel

This can be used even w/o snap.

UI: re-arrange object mode and 3D view buttons

After some consideration we're moving 3D view settings
that impact the 3D view back.

See T55386 for details.