Version Control With Subversion Source

* trunk/src/de/book/ch03-advanced-topics.xml:
- Fixed ticket #136 (cf. http://www.svnbook.de/ticket/136).

I was surprised this morning to learn that a new book, "Subversion
1.6", written by Sussman/Fitzpatrick/Pilato, has hit the market. Yep,
ISBN 9781596821699[1]. Which is odd, because I'm fairly certain that
we haven't finished updating this book for 1.6 coverage. Anyway, this
commit takes some steps to try to point out the DRAFT-ful nature of
the current text.

[1] http://isbn.nu/9781596821699

* src/en/stylesheets/custom-fo-stylesheet.xsl
New custom stylesheet which marks this version as a draft.

* src/en/stylesheets/fo-stylesheet.xsl
Include the new custom stylesheet. Not strictly necessary to have
this abstraction, but it makes all the custom stuff easy to find.

* src/en/stylesheets/custom-html-stylesheet.xsl
Make this version as a draft.

* src/en/book/book.xml
Add '[DRAFT]' to the title of the book.

* src/en/book/ch06-server-configuration.xml
Add a warning about the fact that SVNReposName is *not* the name
that the authz subsystem uses.

* trunk/src/de/book/ch03-advanced-topics.xml:
- Fixes ticket #135 (cf. http://www.svnbook.de/report/6).

* src/fr/book/images/ch01dia1.png
* src/fr/book/images/ch01dia1.svg
* src/fr/book/images/ch04dia1.png
* src/fr/book/images/ch04dia1.svg
* src/fr/book/images/ch04dia4.png
* src/fr/book/images/ch04dia4.svg
* src/fr/book/images/ch08dia1.png
* src/fr/book/images/ch08dia1.svg
* src/fr/book/images/ch08dia2.png
* src/fr/book/images/ch08dia2.svg

- Add chapter 1, 4 and 8 pics, in svg format
- Update the associated pngs

* src/en/book/ch06-server-configuration.xml
For issue 8, document the $authenticated and $anonymous magic authz
file authentication class tokens and the tilde (~) exclusion marker.

Indentation and whitespace changes only.

* src/en/book/ch06-server-configuration.xml
For issue 9, demonstrate the possibility that the Subversion
mod_dav_svn module won't necessarily live in Apache's modules/
subdirectory.

* src/en/book/ch01-fundamental-concepts.xml
Fix minor grammar-o. "blah only works when" => "blah works only when".
Also, lose unnecessary emphasis.

Fix issue 97 ("^URL syntax usage in some sections does not fit the
repository layout").

* src/en/book/ch04-branching-and-merging.xml
Re-add "/calc" to the front of the appropriate URL shortcuts, and
expand one example that uses a totally different repository (for some
reason...) back out to a full URL.