Subject UTF-8 fix

Do you have problems with latin characters in subjects title at Version 1.6.0 (Stable)? Use this instant fix.

/include/class.email.php at line 135

function send($to,$subject,$message,$attachment=null) {

global $cfg;

// Subject UTF-8 fix

$subject = "=?UTF-8?B?".base64_encode($subject)."?=";

// Subject UTF-8 fix : END

//Get SMTP info IF enabled!

$smtp=array();