[jdom-interest] JDOMTransformer

[Jason Hunter]

I just checked in org.jdom.transform.JDOMTransformer to help with simple
transformations.  It's been a TODO item to make simple transformations
into a "one-liner".  I'm not sure I've got the best approach here, but
best to check it in and get some review.  I changed the
samples/XSLTransform.java to use the new convenience class.

Please check it out and let me know what you think!

-jh-