Update Czech translation from Transifex.
Update Korean localization from Transifex.
Update Turkish localization from Transifex.
Update Spanish localization from Transifex.
Update Japanese localization from Transifex.
Add Finnish localization from Transifex.
Update Hebrew localization from Transifex.
Update Italian localization from Transifex.
Document lots of the constants and move some.
Add contribute and testimonals sections to market description.
3.53
prod: Remove 'test' flavor from version
prod: Widget preview
prod: App icon
prod: App name