Version Control With Subversion Source

Book: rename graphic files correctly.

* book/images/ch08dia1.png: moved from ch07dia2.png.
* book/images/ch08dia2.png: moved from ch07dia3.png.
* book/ch08.xml: point to new image names.

Book: graphics have been redrawn by O'Reilly, woo!

* book/ch08.xml: remove link to 'big picture' graphic. it lives in ch01 now.

* book/images/ch01dia1.png: redrawn by O'Reilly.

* book/images/ch02dia1.png: redrawn by O'Reilly.
* book/images/ch02dia2.png: redrawn by O'Reilly.
* book/images/ch02dia3.png: redrawn by O'Reilly.
* book/images/ch02dia4.png: redrawn by O'Reilly.
* book/images/ch02dia5.png: redrawn by O'Reilly.
* book/images/ch02dia6.png: redrawn by O'Reilly.
* book/images/ch02dia7.png: redrawn by O'Reilly.

* book/images/ch04dia1.png: redrawn by O'Reilly.
* book/images/ch04dia2.png: redrawn by O'Reilly.
* book/images/ch04dia3.png: redrawn by O'Reilly.
* book/images/ch04dia4.png: redrawn by O'Reilly.

* book/images/ch07dia1.png: remove.
* book/images/ch07dia2.png: redrawn by O'Reilly.
* book/images/ch07dia3.png: redrawn by O'Reilly.

Book tweaks and patches.

* book/images/ch01dia1.png: add the famous design diagram.
* book/book/ch01.xml: explain the design diagram.
* book/book/appa.xml: fix some wording, patch from <Larry.Shatzer@...>.
* TODO: ...my to-do's are now to-done.

Add book TODO.

doc/book/TODO: tweak some TODOs.

* doc/book/book/ch06.xml: update documentation on mod_authz_svn, now
that Sander has added anonymous-auth and SVNParentPath support to
both 1.0.1 and 1.1.

Er. Minor fixemups to revision 8928.

Fix the name of the Subversion IANA service. Noticed by Matthew
Gregan <kinetik@...>.

Book: major update of ch04 branching/merging example.

* ch04.xml: rewrite long-running example in this chapter to use the
recommended 'project root' layout.

* ch06.xml: rename "Using Multiple Servers" section, to clarify subject.

Change book's chapter 4 diagrams to match rewritten chapter.

* book/images/branches.ppt: changed source file chapter 4 diagrams.

* book/images/ch04dia2.png, ch04dia3.png, ch04dia4.png: changed diagrams.