2006-12-14  Morten Welinder  <terra@gnome.org>

	* src/test-format.c: Remove.

	* src/rendered-value.c (gnm_rendered_value_new): If we get an
	error, force a variable field.  This handles #### for negative
	dates.

	* src/gnm-format.c (format_value_gstring): Return error code.
	Handle errors from number formatting.
	(gnm_format_layout): Ditto.