Hi! I am working with upstream to get this relicensed or changed. Would cc-by 3.0 or 4.0 be ok? It is not listed in the dfsg-compliant wiki page, but there seems to be files in the archive with that licence.
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Lisandro Damián Nicanor Pérez Meyer
http://perezmeyer.com.ar/
http://perezmeyer.blogspot.com/