Merged changes in the trunk up to revision 39826.

Made a major amount of conflict resolution for code adaptation to
the animation system updates introduced in the Pepper branch recently
merged to the trunk.

Resolved conflicts:
source/blender/blenkernel/intern/anim_sys.c
source/blender/blenkernel/intern/library.c
source/blender/editors/animation/anim_channels_defines.c
source/blender/editors/animation/anim_channels_edit.c
source/blender/editors/animation/anim_filter.c
source/blender/editors/animation/keyframes_draw.c
source/blender/editors/animation/keyframes_edit.c
source/blender/editors/include/ED_anim_api.h
source/blender/editors/space_nla/nla_buttons.c
source/blender/editors/space_nla/nla_channels.c
source/blender/makesdna/DNA_action_types.h
source/blender/makesdna/intern/makesdna.c
source/blender/makesrna/intern/rna_main_api.c

doc/python_api/sphinx_doc_gen.py

@@ -1236,7 +1236,6 @@ def rna2sphinx(BASEPATH):
 
     shutil.copy2(os.path.join(BASEPATH, "..", "rst", "change_log.rst"), BASEPATH)
 
-
     if not EXCLUDE_INFO_DOCS:
         for info, info_desc in INFO_DOCS:
             shutil.copy2(os.path.join(BASEPATH, "..", "rst", info), BASEPATH)