Version Control With Subversion Source

Patch contributed by Francois Beausoleil. This incorporates all of the
changes that are still relevant from his two messages linked from issue 1187,
except for the change to the list of status codes in appa.xml.

* doc/book/book/appa.xml, doc/book/book/ch08.xml:
Corrected some more grammatical mistakes.
Corrected a renamed option on svn status in the appendix.
Split long <screen> lines into multiple lines using Unix continuation char.