tzcode1998a.tar.gz and tzdata1998.tar.gz

The files ftp://elsie.nci.nih.gov/pub/tzcode1998a.tar.gz and ftp://elsie.nci.nih.gov/pub/tzdata1998a.tar.gz are now available. These incorporate the changes circulated on the time zone mailing list by Paul Eggert. --ado