Blender Git Loki

Merge blender2.8 branch.

This means that from now own, we work based on Blender2.8!

Conflicts:
source/blender/blenloader/BLO_readfile.h
source/blender/blenloader/intern/readfile.c
source/blender/editors/space_file/filesel.c
source/blender/editors/space_outliner/outliner_draw.c
source/blender/editors/space_view3d/space_view3d.c
source/blender/makesdna/DNA_ID.h
source/blender/makesdna/DNA_scene_types.h
source/blender/makesdna/DNA_text_types.h
source/blender/windowmanager/intern/wm_event_system.c
source/blender/windowmanager/intern/wm_files_link.c
source/blenderplayer/bad_level_call_stubs/stubs.c