Version Control With Subversion Source

Finish issue #140 ("ch05: svnsync walkthrough refers heavily to
CollabNet's Subversion repository ... which is no more.")

* en/book/ch05-repository-admin.xml
Rework svnsync examples to use the book's source repository instead
of the now-defunct svn.collab.net Subversion source code repository.

Finish issue #138 ("1.7 change: error and warning number codes now
reported").

* en/book/ch02-basic-usage.xml,
* en/book/ch03-advanced-topics.xml,
* en/book/ch07-customizing-svn.xml,
* en/book/ch09-reference.xml
Retroactively discover and insert error codes into error messages
and warnings (updating error messages which have changed).

Finish issue #146 ("1.7 change: Permanent HTTP redirects are
automatically followed.").

* en/book/ch04-branching-and-merging.xml
Add a note about using permanent redirects to give clients a clue
about a repository's new location, and point out that 1.7 clients
will automatically relocate working copies when they see such
things.

Merge from ^/trunk/en r4062, which fixed issue #89 ("ch09: svn
options: --strict, --targets & switch").

Fix issue #89 ("ch09: svn options: --strict, --targets & switch").

* en/book/ch09-reference.xml
Tweaks to the reference chapter descriptions of --targets, --strict,
and 'svn switch'.

Reported by: chris0@...

Merge from ^/trunk/en r4060, whose log message read like so:

Fix issue #149 ("The count of Keywords specified in text doesn't match
number of Keywords listed").

* en/book/ch03-advanced-topics.xml
Remove specific (and wrong) number of available keywords.

Reported by: harry.pehkonen

Fix issue #149 ("The count of Keywords specified in text doesn't match
number of Keywords listed").

* en/book/ch03-advanced-topics.xml
Remove specific (and wrong) number of available keywords.

Reported by: harry.pehkonen

For issue #121 ("1.7 change: copy-on-update code removed").

* en/book/ch02-basic-usage.xml
(svn.tour.treeconflicts.example): Rework this section a bit for
clarity, for updated output from Subversion 1.7 binaries, and to
not depend on Subversion applying edits atop of moved file
automatically (since we removed that logic in Subversion 1.7).

Finish issue #117 ("1.7 change: New 'svn patch' subcommand").

* en/book/ch09-reference.xml
(svn.ref.svn.c.patch): Flesh out this section.

Finish issue #137 ("1.7 change: svn diff now shows textual property
changes in unidiff format, except for svn:mergeinfo properties").

* en/book/ch03-advanced-topics.xml
(svn.advanced.props.workflow): Update sample output from 'svn diff',
and massage wording about how properties are represented to include
a mention of 'svn patch' and its utility here.

* en/book/ch09-reference.xml
(svn.ref.svn.c.patch): New placeholder section.