ACTION-158 (xmlenc)

I have reviewed the references in xmlenc-core-11. My suggested modifications
are contained in the file xmlenc.ref (attached).

Changelog...

1. Split into Normative and Informational.

2. Updated RFC 1750 to RFC 4086.

3. Updated RFC 2396 to RFC 3986.

4. Updated RFC 2437 to RFC 3447.

Notes...

There is no pointer to [HMAC] in the text, although there is a mention of
HMAC. I have not adjusted the body of the text to provide the pointer.

There is no pointer to or mention of [MD5], [prop1], [prop2], [prop3],
[RIPEMD-160], [UTF-16], [URN], or [X509v3] in the text. However, I have
retained the references and moved them all to the Informational References
section.

I shall attempt to complete a similar review of xmldsig-core-11 soon.

Peter