-+ Added 'etag' request option.
-+ Added 'encodecookies' request option (defaults to true).
-+ Added missing accessors for response status text to HttpMessage and HttpRequest classes.
-+ Added HttpMessage::reverse().
++ Added If-Range header recognition.
++ Added "portrange" request option.
++ Added HttpQueryString::iconv().
++ HttpQueryString implements Serializable (PHP-5.1).