Version Control With Subversion Source

* src/zh/book/ch05.xml:
Fix up bogus xref linkend from the old numeric style (svn-ch-5-sect-2.2)
to the current named style (svn.reposadmin.create.bdb).

* src/pt_BR/book/ch04.xml: Recode from ISO-8859-1 to UTF-8.

Make the nightly build script more resilient to build errors, and
publish build logs (so, presumably, someone can fix build errors).

* src/tools/build-nightlies
Use popen2.popen4() instead of os.system() so we can capture stdout
and stderr from the build and drop that into a log file. Wrap the
build of the post-build arranging stuffs in a big try/except
statement so we don't fall over at the slightest problem. Show all
the attempted locales in the output, with unsuccessful ones stating
as much and providing a link to the build log.
(SKIP_LOCALES, SKIP_PDF_LOCALES): Were skip_locales and
skip_pdf_locales, respectively. Move close to the top of the file.

* src/nb/book/images/warning.svg
* src/nb/book/images/warning.png
Decreased the sign size so there’s three blank pixels at the edge.
Looks nicer. Also added shadow because note.png and tip.png have it.

Replacing the warning sign with the version we use here in Norway.

* src/nb/book/images/warning.svg: Downloaded from
<http://upload.wikimedia.org/wikipedia/commons/3/38/Zeichen_101.svg>.
Licence: Public domain.

* src/nb/book/images/warning.png: Converted from SVG with Inkscape-0.43 .

Start translation of chapter 4.

Translation by: Andre Luiz Monteiro da Costa <almcosta.cgm@...>

* src/pt_BR/book/ch04.xml:
(svn.branchmerge): Translate completely.

* src/pt_BR/GLOSSARIO:
Add three new terms found in that translated text.

* www/index.pt_BR.html:
Set Andre Luiz as the owner of chapter 4 and update the translation status
of that chapter.

* www/index.pt_BR.html:
Update the translation status of chapter 1.

Merge changes from /trunk/src/en to /trunk/src/pt_BR, from r2354.

* src/en/book/copyright.xml: Bump copyright year to 2006.

* zh/book/foreword.xml: remark some sentances.