Release 5.0.2

Release 5.0.1

- updated Swift version in project file

- added new delegate methods for visibility state of controls

- improved code coverage
- added missing delegate calls for error cases

Release 4.1.0

Merge pull request andreipitis#25 from andreipitis/asp-code-cleanup

4.0.0

- updated unit test to reduce test time

- fixed indentation in test classes

Merge remote-tracking branch 'origin/master'

- updated changelog

Release 2.0.2