Incremental improvement in comment moderation:

1) Akismet now detects when we change a comment's published state and submits
   info back to akismet.com as appropriate

2) We now show 4 different queues (all / approved / unapproved / spam) and let you
   move messages between the queues

3) We track and display "spam caught" stats.

4) You can delete comments entirely.

modules/comment/helpers/comment_installer.php

@@ -39,6 +39,7 @@ class comment_installer {
                  PRIMARY KEY (`id`))
                  ENGINE=InnoDB DEFAULT CHARSET=utf8;");
 
+      module::set_var("comment", "spam_caught", 0);
       module::set_version("comment", 1);
     }
   }