6575eede14
* src/GrampsDb/_ReadXML.py (start_compound_date): Add new method; (start_datespan): Add new method. * data/grampsxml.dtd: Add datespan. * data/grampsxml.rng: Add datespan. * src/GrampsDb/_WriteXML.py (XmlWriter.write_date): Write the datespan. svn: r8711