Refreshes the labels to display the proper title and count information.

def refreshLabels( self ):
        """
        Refreshes the labels to display the proper title and count information.
        """
        itemCount = self.itemCount()
        title = self.itemsTitle()
        
        if ( not itemCount ):
            self._itemsLabel.setText(' %s per page' % title)
        else:
            msg = ' %s per page, %i %s total' % (title, itemCount, title)
            self._itemsLabel.setText(msg)