fix for inner uv and fractal / bmesh

attempt to fix inner uv for fractal boolean

small refresh operator fix

attempt to stabilize dynamic fracture

can now finally save and load fracture data (and motion data)

fix typo (where only the unmodified mesh was taken into account as operand)

why interrupt and reset the particle sim, if a modifier after it changes ? Makes not much sense.

in this case, changing the parameters of metaball remesh after particlesystem during animation caused strange resets.

null pointer crash fix

actually take the FM solver change into account, was defaulting to carve now.

fix incorrectly flipped carve result

bring back carve as boolean alternative for FM 2.8 (and boolean modifier too)

Users should keep the solver as choice, since Bmesh boolean is not finished yet.

attempt to fix crash with dynamic + constraints (but the problems are multiple depsgraph threads here)

metaball remesh crash fix

update submodule pointers

Merge remote-tracking branch 'origin/master' into fracture_modifier-2.8

# Conflicts:
# intern/cycles/blender/blender_mesh.cpp
# intern/rigidbody/RBI_api.h
# intern/rigidbody/rb_bullet_api.cpp
# source/blender/blenkernel/BKE_rigidbody.h
# source/blender/blenkernel/intern/rigidbody.c
# source/blender/depsgraph/intern/builder/deg_builder_relations.cc
# source/blender/draw/intern/draw_manager.c
# source/blender/editors/physics/rigidbody_object.c
# source/blender/makesdna/DNA_modifier_types.h
# source/blender/makesdna/DNA_rigidbody_types.h
# source/blender/makesrna/intern/rna_modifier.c
# source/blender/makesrna/intern/rna_rigidbody.c
# source/blender/modifiers/intern/MOD_boolean.c
# source/blender/modifiers/intern/MOD_multires.c
# source/blender/modifiers/intern/MOD_remesh.c

make usage of opensubdiv in subsurf and multires optional, allow switching to legacy mode

anim bind rotation fix (again)

animated mesh rotation fix

expose shard neighbors via RNA

Merge remote-tracking branch 'origin/master' into fracture_modifier-2.8

# Conflicts:
# release/scripts/addons
# release/scripts/addons_contrib
# source/blender/blenkernel/BKE_rigidbody.h
# source/blender/blenkernel/intern/rigidbody.c
# source/blender/depsgraph/intern/builder/deg_builder_relations.cc
# source/blender/editors/physics/rigidbody_constraint.c
# source/blender/makesrna/intern/rna_rigidbody.c