Currently a click on e.g. the dock icon is not propagated to the
application so if for example the main widget is hidden, it can't be
brought back. Also neither applicationDidBecomeActive nor
applicationDidResignActive do anything. This patch fixes it
[ChangeLog][QPA][OS X] Add support for ApplicationState capability.
Application can now detect when an application states has changed
as well when the dock icon has been clicked.
Task-number: QTBUG-10899
Change-Id: I53d3e6eed4adc62b343e7aa3e3d8068d3248e7df
Reviewed-by: Jake Petroules <jake.petroules@petroules.com>
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
787692a09e