Update AUTHORS.txt.
Widget Bridge: Make the _init method optional. Add tests for both states. Fixes #9543 - Widget bridge: Make _init() optional.
Spinner: Add isValid method. Fixes #9542 - Spinner: Add isValid() method
Widget: Only remove hover and focus classes when disabling, not enabling. Fixes #9558 - Widget: .enable() while already enabled kills ui-state-focus and ui-state-hover.
Merge branch 'master' into selectmenu