Set non-git version to 4.16.1-non-git.
release i3 4.16.1
Set non-git version to 4.16-non-git.
release i3 4.16
Set non-git version to 4.15-non-git.
release i3 4.15
Set non-git version to 4.14-non-git.
release i3 4.14
Set non-git version to 4.13-non-git.
release i3 4.13
initial (manual) version files check-in