Added file rbgtktreesortable.c: provides connection to the GtkTreeSortable interface.
Added file rbgtktreesortable.c: provides connection to the GtkTreeSortable
interface.


kitachro/ruby-gnome2,kitachro/ruby-gnome2,kitachro/ruby-gnome2,kitachro/ruby-gnome2,kitachro/ruby-gnome2