Kokua Release 6.4.22

Kokua 6.4.22 is now available incorporating an updated CEF embedded browser for Windows and Mac platforms and various bug fixes for all platforms.

Release notes: https://kokua.atlassian.net/wiki/spaces/KKA/pages/1788805121

Downloads: https://kokua.atlassian.net/wiki/spaces/KKA/pages/15237201