2000-03-14  Jon K Hellan  <hellan@acm.org>

	* src/workbook-view.c (workbook_view_history_update,
	workbook_view_history_shrink): ): We introduce numbers in front of
	the the history file names for the following reasons:
	1. Bonobo won't let you make 2 entries with the same label in the
	   same menu. But that's what happens if you e.g. access
	   worksheets with the same name from 2 different directories.
	2. The numbers are useful accelerators.
	This means that when a new item is added, all existing entries get
	a new number. We access them via the label, so we have to remove
	all the old list entries and make a new list.

	history_menu_flush is called to remove the old list,
	history_menu_update to build the new.

	* src/history.c
	(history_item_label): Add accel_number parameter, make label from
	accel_number and basename. Rename basename variable to label.
	(history_menu_item_create): Add accel_number parameter. Use it
	when calling history_item_label.
	(history_menu_locate_separator): New static function. Locate the
	menu and position of history separator. They may not yet exist.
	(history_menu_insert_separator): New static function. Insert the
	history separator. Return its position and the menu shell.
	(history_menu_insert_items): New static function. Add the history
	items to the file menu.
	(history_menu_remove_items): New static function. Remove the
	history items from the file menu.
	(history_menu_setup): Split into lots of twisty little functions,
	all different.
	(history_menu_fill): New exported function. Make the menus for
	the workbooks show the new history list.
	(history_menu_flush): New exported function. Remove the history
	list from the file menus of all workbooks.
	(history_insert_menu_item): Remove.
	(history_remove_menu_item): Remove.

	* src/history.h
	(history_menu_fill, history_menu_flush): Declare.
	(history_insert_menu_item, history_remove_menu_item): Remove.