doap: Demote idle maintainers to authors
doap: Demote idle maintainers to authors

Requested by Michael Catanzaro <mcatanzaro@gnome.org>

frida/vala,GNOME/vala,frida/vala,GNOME/vala,frida/vala,frida/vala,GNOME/vala,GNOME/vala,frida/vala