gsimplecal-gtk3 2.1 -> 2.2
gsimplecal-gtk3 2.1 -> 2.3
gsimplecal-gtk3 2.1 -> 2.4
gsimplecal-gtk2 2.1 -> 2.2
gsimplecal-gtk2 2.1 -> 2.3
gsimplecal-gtk2 2.1 -> 2.4