0.7 (2019-04-12)

• Bump to Swift 5.0

0.6 (2018-09-23)

• Bump to Swift 4.2

0.5 (2017-09-22)

• Bump to Swift 4

0.4 (2017-01-06)

• Fix warning

0.3 (2016-18-09)

• Bump to Swift 3

0.2 (2016-17-07)

• added inner radius

0.1 (2016-03-07)

• initial release