Version Control With Subversion Source

Add the new content for cvs2svn and other repository converters. This
finishes the change started in r8735.

* doc/book/book/appe.xml
(Repository Converters): New first section.
(ViewCVS): Renumber this section.
(SubWiki): Renumber this section.

* doc/book/book/appa.xml
(Converting a Repository from CVS to Subversion): New section, so
this topic shows up in the table of contents, but containing just
a reference to the new "Repository Converters" above.

* doc/book/book/ch02.xml: It's a "false sense of security", not a
"sense of false security". One is when you're not secure but you
think you are; the other is when you might actually *be* secure,
but somehow can't shake the feeling that you're not :-).

Document behaviors in svn cleanup as pointed out by Philip Martin.

* doc/book/book/ch09.xml: Add to svn cleanup docs.

Oy vey, follow up to r8743:

* doc/book/book/book.xml: Remove the other 'appf.xml' reference.

Follow up to r8739, r8738, r8737, r8736, r8735:

* doc/book/book/book.xml: Don't try to build appf.xml anymore.

Adjust references for the renames of r8739, r8738, r8737, r8736, r8735.

Continue renames begun in r8735:

* doc/book/book/appe.xml: New file, renamed from...
* doc/book/book/appf.xml: ...here, which is now temporarily removed.

Continue renames begun in r8735:

* doc/book/book/appd.xml: New file, renamed from...
* doc/book/book/appe.xml: ...here, which is now temporarily removed.

Continue renames begun in r8735:

* doc/book/book/appc.xml: New file, renamed from...
* doc/book/book/appd.xml: ...here, which is now temporarily removed.

Continue renames begun in r8735:

* doc/book/book/appb.xml: New file, renamed from...
* doc/book/book/appc.xml: ...here, which is now temporarily removed.