Fixed logic to turn Change Manager on when procedure is replaced as part of import.

PROMS/VEPROMS User Interface/dlgExportImport.cs

@@ -391,12 +391,15 @@ namespace VEPROMS
       //delete opi
 			try
 			{
+				TurnChangeManagerOn.Execute(); // Import Turns off the Change Manager - Delete needs to have it on
 				Item.DeleteItemAndChildren(pi);
+				TurnChangeManagerOff.Execute(); // Assure that the Change Manager is off
 			}
 			catch(Exception ex)
 			{
 				ExternalTransitionItem = pi.HandleSqlExceptionOnDelete(ex);
 				File.Delete(fn);
+				TurnChangeManagerOff.Execute(); // Assure that the Change Manager is off
 				return;
 			}
       //add imported procedure