second try to fix sendMail. Return true after finalizeStream.

Very very stupid mistake from me. Maybe I shouldn't code anymore when I'm
tired.

class/deliver/Deliver_SendMail.class.php

@@ -36,6 +36,7 @@ class Deliver_SendMail extends Deliver {
     
     function finalizeStream($stream) {
 	pclose($stream);
+	return true;
     }
 }
 ?>