makedefs wasn't including this optional feature in dat/options for
display via ``#version''. It doesn't affect save and bones files but it
is something that may be of interest to users. This change won't work for
UNIX+QT_GRAPHICS because that config is defining SELECTSAVED in files.c
instead of in unixconf.h.
I think there are some other new things which are missing here too.
176a59bb0a