Overview of changes in gnome-calculator 3.22.1
* Headerbar layout fixes (djb)
* Use dim labels for bit markers in Programming mode (djb)
* Fixed history scrolling (Robert Roth)
* Minor programming errors fixed (Tobias Mueller)
* Vertically center headerbar button content (Lapo Calamandrei)
* Updated styles for gtk+ 3.20 (Exalm)
* [l10n] update Croatian translations (gogo)