Blender Git Loki

New parameter to force Fill cache recalc

This is needed for extreme deformations

New operator to generate automatic weights

WIP: Operator to create vertex groups

Only works with the Empty mode.

Cleanup unused function

Cleanup code and comments

Limit Armature modifier to only one instance

More cleanup

Code cleanup: remove unused code

Put text to review

WIP: Add basic functions to deform

Merge branch 'blender2.8' into greasepencil-experimental

Put in place all pieces for Armature modifier

The modifier doesn't do anything yet.

Fixed some matrix fuction naming format

Software mode FOV adapted.

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

# Conflicts:
# release/scripts/addons_contrib
# release/scripts/startup/bl_ui/properties_physics_field.py
# source/blender/makesdna/DNA_scene_types.h
# source/tools

Merge remote-tracking branch 'origin/blender2.8' into greasepencil-object

Hard-core resetting the files to origin/blender2.8

Merge branch 'npr_tess' of https://github.com/DarkDefender/blender into soc-2018-npr

# Conflicts:
# release/scripts/addons
# release/scripts/addons_contrib
# source/blender/editors/space_outliner/outliner_draw.c
# source/blender/makesdna/DNA_scene_types.h
# source/blender/modifiers/intern/MOD_mybmesh.c
# source/tools

Add sanity check in mult_face_search

Merge with upstream changes

More opti step tweaks