bug 16490.
We were attempting to display the entered text rather than the formated text
and falling over when the copied cell had no sheet.  This is not lovely, but it
is as clean as we'll get for now.

2000-07-06  Jody Goldberg <jgoldberg@home.com>

	* src/sheet-style.c (sheet_style_compute_from_list) : Make public.
	  and rename from sheet_mstyle_compute_from_list.  Changed all
	  callers.

	* src/rendered-value.c (rendered_value_new) : Optionaly take a style
	  list.  Use it if offered.

	* src/cell.c (cell_render_value) : New signature for rendered_value_new.

	* src/render-ascii.c (cell_region_render_ascii) : Temporarily reverse
	  the style list so that it goes in the correct direction.   Use
	  rendered_value not entered_text.

	* src/clipboard.c (clipboard_prepend_cell) : Init the Cell::pos with
	  the offsets.  This is useful in when looking up formats.