Version Control With Subversion Source

* www/index.zh.html: add contents about Chinese translation.

* COMMITTERS: Add our new pt_BR translation team.

Editing in progress...

* zh/book/book.xml: change the order of last two chapters.

* zh/book/ch01.xml: change the url to en

* zh/book/ch01.xml: change some terms
* zh/book/ch08.xml: change some terms

* zh/book/ch06.xml: nearly the last modification
* zh/book/ch08.xml: nearly the last modification
* zh/book/ch09.xml: nearly the last modification
* zh/book/appa.xml: nearly the last modification
* zh/book/appb.xml: nearly the last modification
* zh/book/appc.xml: nearly the last modification
* zh/book/appd.xml: nearly the last modification
* zh/book/glossary.xml: nearly the last modification

* zh/book/ch06.xml: nearly the last modification
* zh/book/ch07.xml: nearly the last modification
* zh/book/book.xml: change some words

* www/index.es.html: Add missing vertical bar.

* www/index.it.html, www/index.ru.html, www/index.html.var:
Add link to Chinese translation.

* ru/book/ch02.xml: Remove misplaced and unclosed comment, which was breaking
the build.

Reported by: Alex S. Kabakaev