2011-08-17 Andreas J. Guelzow <aguelzow@pyrshep.ca>

	* src/rendered-value.h (_GnmRenderedValue): re-add color field
	* src/rendered-value.c (gnm_rendered_value_new): store style color
	in color field
	(colour_selector_cb): deleted
	(colour_from_layout): deleted
	(gnm_rendered_value_get_color): just return color field value