TODO list:
	* Make more passes over the documentation
	* More demo programs 
	* Lots of docstrings!
        * Re-indent everything to 4-space indents
	* Flesh out the test suite more

demo/xbel/	
	* Update all the software to match the current XBEL DTD
	* Add a test suite for the basic parser

dom/
	* Element.removeAttributeNode needs to know about DTDs to
restore a default value.

	* Greg Stein owes doc on qp_xml
