Fixing upgrade file.

(Logical change 1.455)

eventum/UPGRADE

@@ -20,10 +20,19 @@ instructions:
    these scripts in your web browser
 
 
+- Upgrading from version 1.3.1 to 1.4:
+--------------------------------------
+
+For the upgrade from release 1.3.1 to 1.4, there are 4 scripts you need
+to run. For convenience, an index file is provided to list the scripts.
+Open /path-to-eventum/misc/upgrade/v1.3.1_to_v1.4/ in a web browser
+and run the scripts in order.
+
+
 - Upgrading from version 1.3 to 1.3.1:
 --------------------------------------
 
-For the upgrade from release 1.2.2 to 1.3, there's one script in the 
+For the upgrade from release 1.3 to 1.3.1, there's one script in the 
 following directory that will upgrade your database schema:
 
   /path-to-eventum/misc/upgrade/v1.3_to_v1.3.1/database_changes.php