ion-3-20090110.tar.gz	http://tuomov.iki.fi/software/ion-3-20090110.tar.gz
ion-3-20090110.tar.gz.asc	http://tuomov.iki.fi/software/ion-3-20090110.tar.gz.asc
notion-3-2014052800-src.tar.bz2	http://download.sourceforge.net/sourceforge/notion/notion-3-2014052800-src.tar.bz2
xpde-0.5.0.tar.gz	http://xpde.com/releases/xpde-0.5.0.tar.gz
notion-3-2015061300.tar.gz	https://github.com/raboof/notion/archive/3-2015061300.tar.gz