Version Control With Subversion Source

Improve nightly index HTML page.
- Make valid XHTML 1.0 Strict.
- Display build duration.

* src/tools/build-nightlies (format_duration): New helper function.
(build_begin_time, build_end_time): Timestamp the build.
(output stage): Add DOCTYPE declaration.
Clarify title wording.
Add mandatory type attribute to <style> element.
Add duration to page.
Remove bogus <ul> used for indentation, and use CSS instead.
Add a few blank lines to ease human inspection of the generated XHTML.

Ignore pattern maintenance.

* ./: Delete the ineffective 'amazon-ranking.*' pattern.
* www/: Add 'amazon-ranking.png' and 'amazon-ranking.txt'.

Ignore pattern maintenance:
- Add 'svn-book-*.tar.bz2'
- Sort the common portion of the ignore lists (leaving translation-specific
additions untouched at the bottom).

* src/en/book
* src/es/book
* src/it/book
* src/nb/book
* src/pt_BR/book
* src/ru/book
* src/zh/book

* ru/sync.py
Few tweaks

* ru/book/ch07.xml
Warning: Inconsistent synchronization, merge with r2120:r2121 of
en/book/ch07.xml has been performed, but the range r1943:r2120 has been
omitted. It needs to be considered on future syncs.

* ru/book/appa.xml
ru/book/appb.xml
ru/book/appc.xml
ru/book/ch00.xml
ru/book/ch01.xml
ru/book/ch02.xml
ru/book/ch03.xml
ru/book/ch04.xml
ru/book/ch05.xml
ru/book/ch06.xml
ru/book/ch08.xml
ru/book/copyright.xml
ru/book/foreword.xml
ru/book/styles.css
Update to mirror a current state of en/book/* (up to r2152)

* www/index.ru.html
Update page to mirror a current state of index.en.html (up to r2152)

Book Spanish. Formalised a few translation terms.

Book Spanish. Corrected Python name.

* www/index.es.html: Updated web page to match English revision 2149.

Import updated readme-dblite.html from doc/dblite.html in the O'Reilly
DocBook Lite version 0.5 tarball.

* src/tools/readme-dblite.html: Import latest version from upstream, bringing
with it the following changes:
Rewrapped some lines.
README is used in example instead of README.txt.
O'Reilly production comments are now wanted in <remark>-s not <comment>-s.
See Also section referring to a page on the O'Reilly intranet is removed.

* www/index.en.html: Correct sizes of 1.2 book, and make available tarballs
of the HTML formats.