Conflicts resolved:
source/blender/makesrna/RNA_enum_types.h
According to the changes in revision 35667, the Freestyle-related code
in release/scripts/ui/ was moved to release/scripts/startup/bl_ui/.
ui/ --> startup/bl_ui
op/ --> startup/bl_operators
scripts/startup/ is now the only auto-loading script dir which gives some speedup for blender loading too.
~/.blender/2.56/scripts/startup works for auto-loading scripts too.