[Qt] QFileDialog signals

[Den.Jean at telenet.be]

>Is it possible to add this signals to bindings:
>
>QFileDialog:
>     void currentChanged ( const QString & path )
>     void directoryEntered ( const QString & directory )
>     void filesSelected ( const QStringList & selected )
>     void filterSelected ( const QString & filter )
>

V1.50: 17 Sep 2007: Added protected QLCLTabWidget::tabBar, Added Signals of QFileDialog