2010-08-21  Andreas J. Guelzow <aguelzow@pyrshep.ca>

	* openoffice-read.c (oo_attr_int_range): new
	(oo_attr_pos_int): delete and replace all of its occurrences by
	  oo_attr_int_range
	(oo_attr_non_neg_int): ditto
	* openoffice-write.c (odf_write_bar_col_plot_style): more properties
	(odf_write_line_chart_style): add properties and rename to
	  odf_write_line_plot_style