CalendarKit Versions Save

• iOS 11 is now a minimum deployment target
• Library code simplified for Swift 5.7

startDate and endDate properties in EventDescriptor have been replaced with DateInterval API: https://developer.apple.com/documentation/foundation/dateinterval

This version requires iOS 10+

This version contains updated library API. Methods and properties that are not recommended to be used by the clients are hidden with the private keyword now. On the other hand, a big portion of the library has been exposed with the public modifiers, so that it's now possible to use CalendarKit's components to create an own custom user interface.

#242

AM/PM symbols localized "all-day" localized

1. Moved CalendarStyle to use structs instead of classes with NSCopying protocol support.
2. It is possible to move an event to the day before or after the currently visible on a timeline by dragging past midnight, either all the way up or down.
3. Fix fo issue #159