Version Control With Subversion Source

Fix a few typos and usages.

* ch03-advanced-topics.xml
Change "switch" to "option"; remove hyphen from "multiline" per O'Reilly
word list.

* ch07-customizing-svn.xml
Remove hyphen from "multiline".

* ch09-reference.xml
Fix various typos; note --diff-copy-from option to 'svnlook diff'
and --full-paths option to 'svnlook tree'; another "multiline" fix.

Patch by: Larry Shatzer <larrys {at} gmail.com>

Fixup some invalid XML.

* src/en/book/ch03-advanced-topics.xml,
* src/en/book/ch04-branching-and-merging.xml
Typo fixes, submitted by Bang Jun-young <junyoung {at} mogua.com>.

* index.zh.html: change to the new url of Chinese

Update the HACKING file, adding some notes about how we do things, as well
as a section on what kind of pre-processing is technically required for
correct output.

Consistify footnote formatting.

* src/de/book/ch01-fundamental-concepts.xml

- Integrated patch of Jens M. Felderhoff
for Ticket #29

* src/de/book/book.xml
* src/de/book/ch03-advanced-topics.xml
* src/de/book/ch05-repository-admin.xml
* src/de/book/ch07-customizing-svn.xml
* src/de/book/ch08-embedding-svn.xml
* src/de/book/appd-third-party-tools.xml
* src/de/book/styles.css

- merged the changes from the english book into
current translation area.
/trunk/src/en/book (r2996-3028).

* src/de/book/ch01-fundamental-concepts.xml
- integrated translation patch of Jens M. Felderhoff

* src/de/book/ch00-preface.xml
- integrated translation patch of Jens M. Felderhoff
- Marked english original text with
xml comments.