Dependencies don't seem right

[Maynard Kuona]

I have noticed that control-center, a GNOME component, has a dependency
on arts, which is a KDE part, and somehow other gnome apps are now part
of this. Now we have a situation where some thoroughly GNOME apps have
dependencies of qt because of arts. GNOME apps hardly use arts if at
all, so I would suggest that this dependency be removed. arts should be
installible separately from the rest of GNOME.