Multisite implementations need to only display *their own* payment processors

Adding extra line here causes only domain 1's processors to be available on domain 1 and so on

public static function &paymentProcessor( $all = false, $test = false, $additionalCond = null )
{
$condition = "is_test = ";
$condition .= ( $test ) ? '1' : '0';
$condition .= " AND domain_id = '" .CRM_Core_Config::domainID() . "'";