* www/project_links.html: Remove the "not yet released" caveat from   the entry for William Nagel's book.
* www/project_links.html: Remove the "not yet released" caveat from
  the entry for William Nagel's book.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion