mysqlnd_ms support

dbosource.diff

diff --git a/lib/Cake/Model/Datasource/DboSource.php b/lib/Cake/Model/Datasource/DboSource.php
index a01cee6..6204755 100644
--- a/lib/Cake/Model/Datasource/DboSource.php
+++ b/lib/Cake/Model/Datasource/DboSource.php
@@ -2304,6 +2304,7 @@ class DboSource extends DataSource {
 		if ($this->fullDebug) {
 			$this->logQuery('BEGIN');
 		}
+		$this->_connection->setAttribute(PDO::ATTR_AUTOCOMMIT, false);
 		return $this->_transactionStarted = $this->_connection->beginTransaction();
 	}
 
@@ -2338,7 +2339,9 @@ class DboSource extends DataSource {
 				$this->logQuery('COMMIT');
 			}
 			$this->_transactionStarted = false;
-			return $this->_connection->commit();
+			$res = $this->_connection->commit();
+			$this->_connection->setAttribute(PDO::ATTR_AUTOCOMMIT, true);
+			return $res;
 		}
 
 		if ($this->nestedTransactionSupported()) {