2001-04-13  Jon K Hellan  <hellan@acm.org>

	* src/workbook-control-gui.c (workbook_control_gui_init): Use
	gtk_idle_add to postpone clipboard setup. For mysterious reasons,
	connecting callbacks to the table doesn't work. Toplevel does
	work, but we must wait until we live inside a toplevel.

	* src/gui-clipboard.c (x_selection_received,
	x_clipboard_bind_workbook): Use wb_control_gui_toplevel to
	determine toplevel.

	* src/gui-clipboard.[ch] (x_clipboard_bind_workbook): Change
	signature to make it callable as an idle function. Make it
	determine the toplevel from