
* Port the XSL tag library to use the PipeConsumer / PipeProducer interfaces
  and demonstrate efficient integration between the io and xsl libraries.

* Demonstrate the use of <io:set property="foo">Some value</io:set>

* Handle multi-part posts to allow easy posting of files or resources.
  For example:-
  
  <http:request url="http://www.foo.com/upload" action="POST">  
    <http:file name="bar.txt" uri="/xml/bar.xml"/>
  </http:request>

* Integrate the caching and timeout features that should appear in the scrape tag library


