2000-12-05  Jody Goldberg <jgoldberg@home.com>

	* src/sheet.c (sheet_region_adjacent_merge) : new function.

	* src/cellspan.c (cell_calc_span) : Use it here to pre bound the
	  potential span region.

2000-12-05  Jody Goldberg <jgoldberg@home.com>

	* src/item-grid.c (item_grid_draw_merged_range) : Draw borders too.
	  This can easily be optimized.

	* src/selection.c (sheet_selection_add_range) : Use
	  sheet_selection_set.