Macrons and URLs

Macrons are allowed in the path part of URLs, but not currently in the machine-name part (or at least, not yet), so http://extensions.services.openoffice.org/project/māori-papakupu is good, but http://www.taiuru.Māori.nz/ is not (use http://www.taiuru.maori.nz/).

A review of how lots of programs handle macrons is at http://research.elabs.govt.nz/macron-support-in-open-source-web-applications/.