tzcode1999f.tar.gz and tzdata1999f.tar.gz

The files ftp://elsie.nci.nih.gov/pub/tzcode1999f.tar.gz and ftp://elsie.nci.nih.gov/pub/tzdata1999f.tar.gz are now available; these incorporate the changes circulated on the time zone mailing list earlier this week by myself and Paul Eggert. --ado