Version Control With Subversion Source

Remove "None" alternate names section for svnsync subcommand.

This means that now the 'svn' command section has "Alternate Name"
sections for all subcommands. All other commands (which most do *not*
have alternate names), do not.

* src/en/book/ch09-reference.xml: Be consistent.

Copyedits for the rest of Chapter 9.

* src/en/book/ch06-server-configuration.xml: Title tweak.
* src/en/book/ch09-reference.xml: Finish chapter copyedits.

* ch06-server-configuration.xml: copyedit checkpoint.

Copyedits for approximately 1/3 of chapter 9.

* src/en/book/ch09-reference.xml: Copyedits for svn command line client

Undo r3042 as I misunderstood the copy editor. Nothing to see here, please move along.

* src/en/book/ch02-basic-usage.xml: Un-tweak option formatting.

Undo r3043 as I misunderstood the copy editor. Nothing to see here, please move along.

* src/en/HACKING: Florp.

* ch06-server-configuration.xml: more copyedits. more to come.

Update our style guide to reflect the wishes of the O'Reilly
copyeditors (and besides, it makes the markeup a *little* easier to
read.

* src/en/HACKING: Fixey.

More copyedits for Chapter 2.

* src/en/book/ch02-basic-usage.xml: Tweak option formatting.

Copyedits for Chapter 2.

* src/en/book/ch02-basic-usage.xml: Death by a thousand cuts.