radius.inc includes both radius_accounting.inc and radius_authentication.inc,
but lives in /usr/local/etc/inc, which makes an extra include path and the
desired code separation a bit pointless.

Further stripping of unused XML elements.

Remove unused clutter, move the rest to /usr/local/sbin, because
these are system administration scripts, not for entertainment of
the individual users.

possibility to invoke XML files completely.  Now the only thing is
the missing conversion of the UPnP Service into MVC.