Blender Git Loki

Fix smooth contour modifier for API changes

Merge remote-tracking branch 'origin/blender2.8' into soc-2018-npr

# Conflicts:
# source/blender/makesrna/intern/rna_scene.c

Fix accidental merge error

GP: Primitive: Enable manipulators for Line/Box/Circle

Based on GP team feedback, all primitive tools have consistent behaviour.

Additionally:
AKEY extends Line, Arc and Curve.
CKEY changes type to Curve/Arc (toggle).
LKEY changes type to Line.
GKEY moves shape.

Merge branch 'blender2.8' into greasepencil-object

GP: Add Subdivide Smooth option

GP: Add missing Main Overlay switch to previous commit

GP: Hide Primitive Gizmos with Overrlay switches

If disable Gizmo or Tool Gizmo the manipulators are not displayed.

GP: Primitive: Add support for brush jitter and random strength

Also fix extra point bug.

Merge branch 'blender2.8' into greasepencil-object

GP: Remove redundant text

GP: New Smooth Operator in Specials menu

This Smooth works as in Meshes when you are in Edit mode.

GP: Cleanup inverse loops

Why use inverse loops when we can use normal loops.

GP: Check if z-depth has valid values

If the values are too high, disable because not surface to project.

GP: Fix bug when start new file and select Arc primitive

Merge branch 'Blender2.8' into greasepencil-object

GP: Primitives, fix add curve behaviour

Reported by @_pepeland_

Also, add TAB key to exit edit mode.

Merge branch 'blender2.8' into greasepencil-object

Merge branch 'blender2.8' into greasepencil-object

GP: Fix missing control points after merge 2.8