implemented conference hotlists and SIG list management from the Top page;

cleaned up remaining SQL statements using text columns instead of column
indexes with the ResultSet; fleshed out specifics in the TODO for
SIG administration

TODO

@@ -1,8 +1,11 @@
 Lots!
 
-- A bunch of the SIG-level functionality is not fully implemented.  We need
-  invites, some admin functions, and the "Manage" button on the "top
-  content" window to work.
+- Unimplemented functions on the SIG Administration page:
+  Set SIG Features (sigadmin, command=F)
+  Membership Control (sigadmin, command=M)
+  Delete SIG (sigadmin, command=DEL)
+
+- Implement SIG invitations ("Invite" button on the profile).
 
 - Should we provide the sysadmin the ability to disable SIG creation for
   non-admin users?  Maybe there needs to be a "global" set of levels that
@@ -13,8 +16,6 @@ Lots!
   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
@@ -25,21 +26,8 @@ Lots!
 - Implement quick e-mail from the user profile display (engine support and
   UI).
 
-- More SELECT queries that specify discrete columns need to start using
-  numeric indexes to retrieve the column data, instead of names.  This will
-  make the retrieval process more efficient, and make for shorter SQL
-  statements in the case of joined queries (no need to SELECT table.column
-  AS name).
-
 - Slippage during posting is still untested.
 
-- 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.
-
-- 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
   different rendering system eventually, we won't need this.