+ Added "dns_cache_timeout", "low_speed_limit", "low_speed_time", "max_send_speed",
"max_recv_speed", "forbid_reuse" and "fresh_connect" request options
+ Added "dns_cache_timeout", "low_speed_limit", "low_speed_time", "max_send_speed",
"max_recv_speed", "forbid_reuse" and "fresh_connect" request options