Add more modules - listed in about.pl but not "use"d anywhere.

Makefile.PL

@@ -86,16 +86,20 @@ WriteMakefile(
     PREREQ_PM => {
 'CGI' => 3.15,
 'CGI::Carp' => 1.29,
+'Class::Accessor' => 0.30,
+'DBD::mysql' => 3.0008,
 'DBI' => 1.53,
 'Data::Dumper' => 2.121_08,
 'Data::Random' => 0.05,
 'Date::Calc' => 5.4,
 'Date::Manip' => 5.44,
 'Digest::MD5' => 2.36,
+'Event' => 1.06,
 'File::Temp' => 0.16,
 'GD::Barcode::UPCE' => 1.1,
 'Getopt::Long' => 2.35,
 'Getopt::Std' => 1.05,
+'HTML::Template' => 2.8,
 'HTML::Template::Pro' => 0.65,
 'HTML::Tree' => 3.1901,
 'HTTP::Cookies' => 1.39,
@@ -111,6 +115,8 @@ WriteMakefile(
 'MIME::Base64' => 3.07,
 'MIME::QuotedPrint' => 3.07,
 'Mail::Sendmail' => 0.79,
+'Net::Z3950' => 0,
+'Net::Z3950::ZOOM' => 1.16,
 'PDF::API2' => 2.000,
 'PDF::API2::Page' => 2.000,
 'PDF::API2::Util' => 2.000,