For Mr. Reader, we set a cookie on the login message and then look for
it on subsequent requests. We need to check $_COOKIE rather than
$_REQUEST though as the values in $_REQUEST are set within php.ini and
cookies are not often set there since the PHP org changed the default
setting of "request_order" to be "GP".
changed authentication call from Mr.Reader so that the reply is also uppercase, since the API-KEY comes in uppercase from clients
fixed debug output while authentication in Mr.Reader with displaying the email adress
