2011-03-14  Andreas J. Guelzow <aguelzow@pyrshep.ca>

	* openoffice-read.c (oo_table_end): set sheet to NULL
	(oo_named_expr): handle missing base and expression name
	spaces
	(opendoc_content_dtd): connect named-expressions element to
	table
	* openoffice-write.c (odf_write_named_expression): write the
	for named-ranges also