-- Reimplemented http_parse_cookie().
-- Changed HttpRequest::getResponseCookie() to HttpRequest::getResponseCookies(),
- compliant to http_parse_cookie().
-- http_build_url() now tries to "resolve" public hostname prior falling back
- to localhost if neither HTTP_HOST nor SERVER_NAME is set.
+- Renamed HttpQueryString::getInstance() to more commonly used ::singleton().
+- Renamed HttpQueryString::iconv() to more generic ::xlate().