Version 0.5.0

Swift 5 support.

Version 0.4.2

Xcode 10.0 support.

Version 0.4.1

Make carthage build cache work.

Version 0.4.0

Xcode 9.3 support.

Version 0.2.0

Swift 4 support.

Version 0.1.1

Swift 3 support.

Version 0.1.0

Support watchOS.

Version 0.0.9

Optimize the memory management of occurrence generator.

Version 0.0.8

Support customize endlessRecurrenceCount.

Version 0.0.7

Remove playground reference of example project to avoid Carthage Xcodebuild time out error.