recent dropped packages from Core are kde dependancies

[Rex Dieter <rdieter math unl edu>]

Two recent Core ejections: xscreensaver and imlib are build dependancies for
kdeartwork (see http://bugzilla.redhat.com/bugzilla/195480 ) and
kdegraphics (see http://bugzilla.redhat.com/bugzilla/195477) respectively.

Should these be going to Extras (too)?  I'd really rather go through the
pain of making kdeartwork-extras, kdegraphics-extras packages for Extras
just to get the missing pieces back.

-- Rex