Improve chart roundtrip through ODF. [#728197]

2014-04-18  Andreas J. Guelzow <aguelzow@pyrshep.ca>

	* openoffice-read.c (odf_apply_style_props): handle auto-dash and
	auto-color extensions; do not depend on order of attributes
	* openoffice-write.c (odf_write_gog_style_graphic): writeauto-dash
	and auto-color extensions