[aur-general] Merge yukon/seom-svn -> -git

The upstream Subversion repositories of yukon and seom have disappeared, but seems to be more or less semi-officially continued on GitHub. The -svn packages in AUR were orphaned, so I have adopted those as well as uploaded new -git ones: https://aur.archlinux.org/packages/yukon-svn/ https://aur.archlinux.org/packages/yukon-git/ https://aur.archlinux.org/packages/seom-svn/ https://aur.archlinux.org/packages/seom-git/ -- Namasté, Frederik "Freso" S. Olesen <http://freso.dk/>