* Various terrain engine fixes

* Includes patch #894 fixes for terrain load-tile
* Large number of other terrain fixes and new commands included.

OpenSim/Region/Application/OpenSimMain.cs

@@ -946,6 +946,7 @@ namespace OpenSim
                     }
                     break;
 
+                case "exit":
                 case "quit":
                 case "shutdown":
                     Shutdown();