Adapt to deprecation of gtk_widget_hide_all
Adapt to deprecation of gtk_widget_hide_all

GTK-2.24 deprecated this function in favor of gtk_widget_hide.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2377

GNOME/clutter-gtk,Distrotech/clutter-gtk,Distrotech/clutter-gtk,GNOME/clutter-gtk,Distrotech/clutter-gtk