Swing Components in Default ProcessingWindow

Turns out not to be too difficult to fix; took about three lines of code in setup():

javax.swing.SwingUtilities.invokeLater(new Runnable() {
    public void run() {
      buildWnd(); // Builds components on EventDispatchThread
    }
  });

javax.swing.SwingUtilities.isEventDispatchThread() now returns ‘true’ for all seventeen components. Demo revised to reflect changes.