How class deriving from GInitiallyUnowned should be wrapped?

[Krzesimir Nowak <qdlacz gmail com>]

Hi,

I'm looking at Gtk::CellRenderer and Gtk::FileFilter. Both C types
derives GInitiallyUnowned, but in gtkmm the former derives from
Gtk::Object and the latter - from Glib::Object. So first one can be
handled as a pointer, the second - as Glib::RefPtr only. With
GtkObject's demise should everything not deriving from GtkWidget or its
descendants be wrapped as Glib::Objects?