title: JFreeChart Vertical Label for IntervalMarker
body: <p>I would like to rotate the label for the IntervalMarker:</p>
  
  <pre><code>        IntervalMarker im = new IntervalMarker(...);
          im.setLabel("LABEL");
  //      im.setLabelOffsetType(LengthAdjustmentType.EXPAND);
  //      im.setLabelOffset(new RectangleInsets(10.0, 10.0, 10.0, 10.0)); 
  //      im.setLabelFont(new Font("SansSerif", Font.ITALIC, 11));
          im.setLabelAnchor(RectangleAnchor.TOP_LEFT);
          im.setLabelTextAnchor(TextAnchor.TOP_LEFT);
          im.setPaint(new Color(208, 194, 214));
  </code></pre>
  
  <p>It didn't allow me to upload a picture, here is the link:
  <a href="http://i54.tinypic.com/5z40fs.png" rel="nofollow">http://i54.tinypic.com/5z40fs.png</a></p>
  
  <p>I would like to have "LABEL" vertical, for better looks.</p>
  
  <p>Thank you</p>