[XML-SIG] XML Canonicalization

[Lars Marius Garshol]

* Rich Salz
| 
| I would be more than happy to add this to PyXML if there's interest.
| Since it operates on DOM nodes, perhaps xml.dom.utils ?

I know this is a little late now, but anyway: why did we do this based
on the DOM? Isn't SAX far more natural for something as simple as this?
It's faster, it works for DOM representations as well, and it scales
much better.

--Lars M.