Version Control With Subversion Source

Merge the "global" and "not-so-global" options lists together, using
<note>'s to call out the options which are universally supported.
Add a title to the single <variablelist> so that it can be
crossreferenced cleanly.

* en/book/ref-svnadmin.xml,
* en/book/ref-svndumpfilter.xml,
* en/book/ref-svnlook.xml,
* en/book/ref-svnrdump.xml,
* en/book/ref-svnsync.xml
Give titles and IDs to the options lists here, too.

* en/book/styles.css
Style magic to make these named variable lists' titles stand out.