Fix merge error that disabled contact drag'n'drop

Thomas Bruederli

2014-08-19 fc52af24f1418d6590a2d37a0d8cc31b123e38f6

 program/steps/mail/sendmail.inc

@@ -462,6 +462,7 @@
}

// exec hook for header checking and manipulation
// Depracated: use message_before_send hook instead
$data = $RCMAIL->plugins->exec_hook('message_outgoing_headers', array('headers' => $headers));

// sending aborted by plugin