Blender Git Loki

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

# Conflicts:
# release/scripts/addons
# release/scripts/addons_contrib
# release/scripts/startup/bl_ui/properties_scene.py
# source/blender/draw/CMakeLists.txt
# source/blender/editors/space_outliner/outliner_draw.c

Merge branch 'soc-2018-npr' of git.blender.org:blender into soc-2018-npr

# Conflicts:
# release/scripts/startup/bl_ui/properties_scene.py

Added init code for default LANPR values. Fixed render and scene panels to accept LANPR engine.

Fix: Ensure that LANPR panel is only enabled when that engine is enabled

- Fixed incorrect COMPAT_ENGINES define

- Removed poll() callback that was preventing the COMPAT_ENGINES
set from working

- Have panel opened by default (since it doesn't need to stay collapsed
when other engines are active anymore)

Example commit for fixing panel visibility when LANPR is enabled

Following the examples here (for the Scene/KeyingSet settings),
all general non-engine-specific panels should include "BLENDER_LANPR"
in the COMPAT_ENGINES set.

Automatically refresh viewport when changing LANPR settings

Use the messagebus struct-subscription methods here (as used for EEVEE settings)
so that changing rendering methods or other settings immediately refreshes
the viewport instead of requiring the user to click on the viewport to force
a redraw.

Fix compiler warnings (use 0 in enums for no icon, not NULL) + whitespace (mixed tabs/spaces)

Compile Fix: Branch now compiles when WITH_OPENSUBDIV is disabled

Adjusted vertex wig and edge flip opti

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

# Conflicts:
# release/scripts/addons
# release/scripts/addons_contrib

changed most of the list API into BLI_'s. Removed many unused functions

Initial work on edge wiggle rewrite

DPIX and Snake's F12 is working now.

Debugging small problem in threads, in lanpr_triangle_line_imagespace_intersection_v2()

Fixed intersection calculation memory leak, fixed snake UI error, added F12 supporting functions.

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

Typo fix finalColor

Fix camera access error, added report to no camera situation.

Fix code for strict compile.

Added debug shaders to find problems in f12