Version 0.6.0

Further public access control changes

Public access on ProgressView properties and ProgressViewObservable init

Version 0.5.0

Yet more public access control changes

Version 0.4.0

Further fixes to type access controls

Version 0.3.0

Added public access to required types

Version 0.2.0

Dropped OS Target to 9.0 from 10.1.

Version 0.1.0

Initial release.