Deprecating old "upgrade" files. MDL-7214

Merged from MOODLE_17_STABLE

blocks/online_users/db/postgres7.php

@@ -1,20 +1,9 @@
 <?PHP  //$Id$
+
+// THIS FILE IS DEPRECATED!  PLEASE DO NOT MAKE CHANGES TO IT!
 //
-// This file keeps track of upgrades to Moodle's
-// blocks system.
-//
-// Sometimes, changes between versions involve
-// alterations to database structures and other
-// major things that may break installations.
-//
-// The upgrade function in this file will attempt
-// to perform all the necessary actions to upgrade
-// your older installtion to the current version.
-//
-// If there's something it cannot do itself, it
-// will tell you what you need to do.
-//
-// Versions are defined by backup_version.php
+// IT IS USED ONLY FOR UPGRADES FROM BEFORE MOODLE 1.7, ALL 
+// LATER CHANGES SHOULD USE upgrade.php IN THIS DIRECTORY.
 //
 // This file is tailored to PostgreSQL
 
@@ -28,6 +17,8 @@ function online_users_upgrade($oldversion=0) {
         $result = true; //Nothing to do
     }
 
+    //////  DO NOT ADD NEW THINGS HERE!!  USE upgrade.php and the lib/ddllib.php functions.
+
     //Finally, return result
     return $result;
 }