Namespaces 1.[01] second edition

I've done some more work on the second editions:

http://www.w3.org/XML/Group/2006/04/xml-names-2e/xml-names-10-2e.html
http://www.w3.org/XML/Group/2006/04/xml-names-2e/xml-names-11-2e.html

There are also diff versions:

http://www.w3.org/XML/Group/2006/04/xml-names-2e/xml-names-10-2e-diff.html
http://www.w3.org/XML/Group/2006/04/xml-names-2e/xml-names-11-2e-diff.html

Note that the diff versions are *both* against Namespaces 1.1.  This
is because 1.0 second edition is 1.1 without the substantive changes
(IRIs and prefix undeclaring).  This diff version won't be much use for
the public but is useful for me at least.

I haven't yet incorporated the potential erratum that we intend to
publish concerning some abuses of the xml and xmlns namespaces.

-- Richard