Add more options to smtp

The default settings is not enough to work with Exchange server.

Please add port and ttl setting to Mail.php.

My example:

$transport = new Zend_Mail_Transport_Smtp(
                    Kwf_Config::getValue('email.smtp.host'),
                    array(			
                        'auth' => Kwf_Config::getValue('email.smtp.auth'),
                        'username' => Kwf_Config::getValue('email.smtp.username'),
                        'password' => Kwf_Config::getValue('email.smtp.password'),
                        //new
                        'ssl' => Kwf_Config::getValue('email.smtp.ssl'),
			'port' => Kwf_Config::getValue('email.smtp.port'),
                    )
                );