Test program to show the flaws of GtkFileChooserButton.

1.  The dialog supplied while creating GtkFileChooserButton gets it's
    title reset
2.  Not supplying GTK_RESPONSE_ACCEPT as the default success response to
    the dialog breaks default GtkFileChooserButton's behaviour of
    showing the icon and filename of selected file in it's label.

czarny at pld-linux dot org
