Thanks to Gareth McCaughan <Gareth.McCaughan_at_pobox.com>.
* doc/book/book/ch05.xml (svn-ch-5-sect-3.1.5): "Berkeley's" -> "the Berkeley",
as BDB is actually developed by Sleepycat.
* doc/book/book/ch07.xml
(svn-ch-7-sect-1.1, svn-ch-7-sect-2.3.4): Punctuation fixes.
(svn-ch-7-sect-2.3.5): Capitalize "Unix" consistently.
* doc/book/book/ch08.xml
(svn-ch-8-sect-1.2.1): Use "machines" and "servers" consistently.
(svn-ch-8-sect-1.3): Punctuation fix.
(svn-ch-8-sect-2): Remove the word "definitely" - it's waffle.
(svn-ch-8-sect-2.1): Insert "the" for better flow.
Tag "apr_pool_t" with <literal></literal>.
(svn-ch-8-sect-2.3): Punctuation fix.
In Python, a list is called a list - not a sequence, which is a class of
things which includes lists and anything else that is iterable.
Correct capitalization of "MzScheme".
