Implemented partial support for conference hotlists ("Add To Hotlist"

button, Conferences sidebox).

TODO

@@ -12,6 +12,16 @@ Lots!
 - There's no system admin functionality AT ALL.  We need to have this stuff
   before we go live.  (It plugs into the Administrative SIG features.)
 
+- Unimplemented functions on the Top page:
+  Manage SIG list (SIG sidebox)
+  Manage Conference Hotlist (Conference sidebox)
+  Customize Sideboxes
+
+- The plan for the "main" part of the Top page is to let a sysadmin put
+  notices there by "publishing" selected conference messages to the front page.
+  We may include a welcome message up top to be displayed if the user's not
+  logged in.
+
 - Implement quick e-mail from the user profile display (engine support and
   UI).
 
@@ -23,14 +33,12 @@ Lots!
 
 - Slippage during posting is still untested.
 
-- Functions still to do on conferencing "topics" page:
-  Add Conference To Hotlist
-
 - We need a "manage" button at conference list level so we can use that to
   manage the ordering of conferences.  This operation should be accessible
   only to users with "create" privilege on the SIG.
 
-- Implement conference hotlist for users.
+- Conference hotlist is now partially implemented, but we need some more work
+  at engine level.
 
 - Not everybody likes purple.  Provide a way to change the default colors.
   Probably via entries in render-config.xml.  Of course, if we go to a