* gnome/IconList.custom: subclassable ctor. * gnome/Gnome.metadata: hide IconList ctor. svn path=/trunk/gtk-sharp/; revision=26963
* gnome/Gnome.metadata : hide the GList API * gnome/*.custom : manually wrap GList api using typed arrays * gnome/gnome-api.xml : regen. svn path=/trunk/gtk-sharp/; revision=23045