Blender Git Loki

Cleanup: fix compiler warnings on macOS / clang.

Workbench: Shadows from outlines

UI: fix incorrect scaling of manipulator widgets with DPI.

U.ui_scale is the setting from the user preferences and should never be used
for drawing. UI_DPI_FAC is the final scale after DPI from the operating system
is taken into account.

Cleanup: remove code for removed Blender Internal properties.

Fix number button sides exiting continuous grab

Merge branch 'master' into blender2.8

Fix vertex paint alpha brush setting color black

Cleanup: meaningful names for color blending

UI: Add icon color saturation preference

Toolbar icon saturation can now be set from the preferences,
(use 0.4 by default).

Revert "UI: don't highlight number button while dragging"

This reverts commit bb513b173e9bb6f1c0db6af66a548ef4883fa0f3.

Broke click events.

UI: split toolbar layout from button creation

Having single & multi-column checks inline were becoming unmanageable.

Use a generator to define the layout,
allows for easily adding different layouts in the future.

UI: fix popover menus not refreshing when changing settings.

UI: put active tool buttons in center topbar region.

Fix multi-editmode memory leak

Previous commit only removed return's.

UI: replace transform hand icon w/ 4 arrows

The hand doesn't have a hotspot which you might want using manipulators

Cleanup: style, duplicate includes

UI: add loopcut & edge offset tools

Also fix minor layout bug.

UI: add new transform tool that enables all widgets

Also add bevel tool.

UI: don't highlight number button while dragging

Edit Mesh: skip unselected meshes w/ fill holes