Major changes in 3.20.1:
* Updated translations for:
    * Basque (Inaki Larranaga Murgoitio)
    * Chinese (China) (Shi Jing)
    * Chinese (Taiwan) (Cheng-Chia Tseng)
    * Italian (Milo Casagrande)
    * Slovak (Dušan Kazik)
    * Slovenian (Matej Urbančič)
    * Turkish (Muhammet Kara)
    * Ukrainian (Daniel Korostil)
* Fix untranslated strings
* Make Year view spam multiple columns (Isaque Galdino)
* Fix issue on the Calendars dialog
* Fix crash on non GNOME Shell environments