Popouts are not handled in loadLayout correctly

[puschie286]

loadLayout of layout-manager doesnt create or close popout windows.

in loadLayout createSubWindows is called before the config is applied - so if the config contain openPopouts, nothing is created

workaround: manual calling createSubWindows after loadLayout.

another problem is closing the old popouts - you can call closeAllOpenPopouts before calling loadLayout to ensure all old popouts are closed. But this doesnt handle the case when you want some popouts to persist