* Subview clean up
* New Add/Remove event pattern
* Using Logging
* cleanup
* Subview -> SubView
* Test code cleanup. Killed many warnings.
* Fix tznind feedback
* Refactored AllViewTest helpers
* Moved keyboard tests to parallel
* Moved mouse tests to parallel
* Moved view tests to parallel
* Test code cleanup. Killed many warnings.
* dupe test
* Some mouse tests can't run in parallel because MouseGrabView
* Made SpinnerView more testable
* Moved more tests
* SubViews to IReadOnlyCollection<View>
* SubViews to IReadOnlyCollection<View> 2
* scrollbar tests
* shortcut tests
* Use InternalSubViews vs. _subviews
* Nuked View.IsAdded.
Added View.SuperViewChanged.
* API doc updats
* Unit Test tweak
* Unit Test tweak
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