Blender Git Loki

Merged changes in the trunk up to revision 46787.

Conflicts resolved:
source/blender/blenkernel/intern/idcode.c
source/blender/blenloader/intern/readfile.c
source/blender/editors/include/ED_anim_api.h
source/blender/editors/include/UI_resources.h
source/blender/makesrna/intern/rna_main.c