Version Control With Subversion Source

* src/en/book/ch03-advanced-topics.xml
(svn.advanced.props.special.keywords): Replace tabs with spaces.

* src/en/book/ch03-advanced-topics.xml
(svn.advanced.props.special.keywords): Document the $Header$ keyword.
While here, use example.com in an example URL, instead of using a real URL.
Fixes issue #95.

Patch by: Andreas Stieger <andreas.stieger@...>

Finish issue #76 ("Documentation of historical URI feature").

* src/en/book/ch06-server-configuration.xml
Document the (expanded in 1.6) mod_dav_svn repository browsing
feature.

Patch by: Andreas Stieger <andreas.stieger@...>
(Heavily tweaked by me.)

* src/en/book/ch02-basic-usage.xml
Mention long-form option aliases, and add a couple more index entries.

* src/en/book/ch01-fundamental-concepts.xml
Oops, fix the secondary indexterm for some subcommands to merge into
other similar terms as intended.

* src/en/book/ch03-advanced-topics.xml
* src/en/book/ch01-fundamental-concepts.xml
* src/en/book/ch00-preface.xml
Mostly index entry additions. Some minor wording and formatting changes.

Bump the copyright, the sequel.

* src/en/book/ch00-preface.xml
My first pass at bringing this up to speed with Subversion 1.6.
Also included in this change is some sectional reordering (to match
the order O'Reilly's editors deemed most appropriate for the second
edition of the printed work.)

Bump the copyright.

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