Hello-IT v1.7.0 Beta 1

This new release don't bring a lot of new feature but now require 10.14.6 as minimum OS, hence the major version number change.

This release fix an issue where the system tray menu logo won't change when using custom image and dark background (#65).

This release introduce a new feature for the public.open.resource: hideIfNotAvailable usable only for file:// URLs (#61).