Log Message:
Update hitori to 3.20.0

3.20.0:
* Various AppData fixes
* Fix a GTK+ warning about styling with newer GTK+ versions
* Translations:
** bg (Alexander Shopov)
** de (Mario Blättermann)
** hu (Gabor Kelemen)
** lt (Aurimas Ä<8C>ernius)
** oc (Cédric Valmary)

3.19.1:
* Rename icon, desktop and appdata files to use \ 
â<80><98>org.gnome.Hitoriâ<80>
<99> prefix
* Remove dependency on gnome-common in favour of autoconf-archive (or m4-common)