XOM API for Processing XML with Java

[Elliotte Rusty Harold <elharo AT ibiblio.org>]

After a day of hacking,  the basics are in place for Canonical XML 1.1
support in head. The canonicalization test cases from
http://www.w3.org/TR/2008/NOTE-xmldsig2ed-tests-20080610/#c14n11xmlbase-c14n11spec-102
all pass though I still need to verify the XML Base fixup examples in
Appendix A. There may well be corner cases I missed. Indeed while
implementing I found one major corner case that is not covered by the
official test suite. However most documents likely to be encountered
in practice should be properly handled.

Once I get around to verifying the Appendix A examples, I'll release
this as XOM 1.2.7. In the meantime you can check it out of head.

-- 
Elliotte Rusty Harold
elharo AT ibiblio.org