* landed support for reading topics and posting followup messages to a topic -

the basis of the conferencing engine is now firmly in place
* tweaks to the HTML Checker to make it better at breaking lines without
  leaving stranded punctuation at the beginning or end of a line
* also modified dictionary to better handle possessives and hyphenates
* as always, miscellaneous tweaks and bugfizes as I spot them

setup/database.sql

@@ -416,6 +416,10 @@ INSERT INTO refaudit (type, descr) VALUES
     (307,     'Delete Topic'),
     (308,     'Set Topic Frozen'),
     (309,     'Set Topic Archive'),
+    (310,     'Post Message'),
+    (311,     'Hide Message'),
+    (312,     'Scribble Message'),
+    (313,     'Nuke Message'),
     (9999999, 'DUMMY');
 
 # The ISO 3166 two-letter country codes.  Source is