CC-3098: Upgrade scripts don't work

-fixed

install_minimal/upgrades/airtime-1.9.0/propel/airtime/CcTransPeer.php

@@ -0,0 +1,18 @@
+<?php
+
+
+
+/**
+ * Skeleton subclass for performing query and update operations on the 'cc_trans' table.
+ *
+ * 
+ *
+ * You should add additional methods to this class to meet the
+ * application requirements.  This class will only be generated as
+ * long as it does not already exist in the output directory.
+ *
+ * @package    propel.generator.airtime
+ */
+class CcTransPeer extends BaseCcTransPeer {
+
+} // CcTransPeer