MySQL Innodb에서 transaction start 변수 설정이 빠진 문제 수정. by vhain님

git-svn-id: http://xe-core.googlecode.com/svn/sandbox@3627 201d5d3c-b55e-5fd7-737f-ddc643e51545

classes/db/DBMysql_innodb.class.php

@@ -121,6 +121,7 @@
          **/
         function begin() {
             if(!$this->isConnected() || $this->transaction_started) return;
+            $this->transaction_started = true;
             $this->_query("begin");
         }