Blender Git Loki

Fix T58046: Crash when changing Particle type, when Hair has dynamics

thx @sergey for checking

Cleanup: split mixed_bones_object_selectbuffer

Split basic object picking logic out into it's own function.

Fix T58913 Won't focus on Grease Pencil

When the datablock was empty, the center was not calculated. Now it uses the object location.

Fix T58811: Scale bezier handle uses tip as origin

Fix T58911: Picking objects fails in pose mode

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

# Conflicts:
# release/scripts/addons_contrib
# release/scripts/startup/bl_ui/properties_data_camera.py
# release/scripts/startup/bl_ui/properties_material.py
# release/scripts/startup/bl_ui/properties_particle.py
# release/scripts/startup/bl_ui/properties_physics_common.py
# release/scripts/startup/bl_ui/properties_physics_rigidbody.py
# release/scripts/startup/bl_ui/properties_physics_rigidbody_constraint.py
# release/scripts/startup/bl_ui/properties_physics_softbody.py
# release/scripts/startup/bl_ui/properties_scene.py
# release/scripts/startup/bl_ui/properties_view_layer.py
# release/scripts/startup/bl_ui/properties_world.py
# source/blender/draw/intern/draw_manager.c
# source/blender/makesrna/intern/rna_scene.c

GP: Clear selected flag for new primitives

GP: Fix wrong extreme in primitive

GP: Fix multi-segment curve

Currently, only last segment is editable.

GP: Remove curve for Lines

Lines only have 2 points, so it's not logic.

GP: Curve edit mode is now default after initial line

No need to hold shift.

GP: Enable curve only for Arcs and Beziers

GP: Change default primitive curve

GP: Fix segment fault with primitive curve

GP: Fix problems with primitive curve and add to Topbar

GP: Evaluate curve for thickness in primitives

GP: New curve to define thickness in primitives

Merge branch 'blender2.8' into greasepencil-object

GP: Use brush strength when draw primitves

GP: Bezier tidy

Remove unused defines and prevent num input while editing