Version Control With Subversion Source

Convert the Svnbook website from HTML 4.01 Transitional to XHTML 1.0 Strict.

* www/styles.css: Change all tag names to lowercase.
Change #versionlist to .versionlist, as some pages want to apply this to
multiple objects.

Common changes to all HTML files:
- Change <!DOCTYPE>.
- Use XML form for empty elements.
- Switch from <u> to <span style="text-decoration: underline">.
- Add class="versionlist" do all id="versionlist" elements.

* www/index.en.html: As above, only.
* www/index.es.html: As above, plus: Correctly escape & characters.
Uniformly use lowercase in tag names. Un-duplicate "versionlist" id.
* www/index.it.html: As above, plus: transcode from ISO-8859-1 to UTF-8,
updateing Content-Type <meta> tag.
* www/index.ja.html: As above, plus: Add missing closing tags.
* www/index.nb.html: As above, plus: Add missing closing tags.
* www/index.pt_BR.html: As above, only.
* www/index.ru.html: As above, only.
* www/index.zh.html: As above, only.

* www/index.html.var: Sync with change to index.it.html charset.

Sync the Norwegian and English web page.

* www/index.nb.html
Updated 2087:2186 from index.en.html .

* www/index.en.html
Fixed a validation error, changed "&" in URL to "&".

fix to keyword expansions (now it works ok)

remarks to ender remarks :-)

Some small suggestions and fixes

Added a lot of nre terms, some are still under discussion

Add new Chinese translation team member.

just blank line modification to get keyword expansion in file

fix to keyword $ID