v1.1 Status property

Added

• Added support for serialization & deserialization of status property on event, place and subEvents. #45
• Added deprecation annotations for getCalendarSummary() and setCalendarSummary() on Offer. #44

v1.0 First stable release

v1.0 is the first release from which point on we'll use semantic versioning and ensure backwards compatibility in minor and patch updates.

Also, the new default branch is now main instead of master. We keep master around to support backwards compatibility with projects that depended on dev-master in the past. However we won't make any more changes to it.

See #43 for a complete overview of the changes compared to previous commits on dev-master.
Note that it involves some (potential) breaking changes if you always used the latest commit on dev-master until now.