20200410 leapsunpack 0.06 - added leaps2zic
20031230 leapsunpack 0.05 - added revised leapsecs, leapsinstall script
20030924 leapsunpack 0.04 - major refactoring, support for dns TXT query
20030723 leapsunpack 0.03
20030409 leapsunpack 0.01
