Based on Maxim Perenesenko's patch, we now do SOCKS5 operations and let the

Based on Maxim Perenesenko's patch, we now do SOCKS5 operations and let the
proxy do the host name resolving and only if --socks5ip (or
CURLOPT_SOCKS5_RESOLVE_LOCAL) is used we resolve the host name locally and
pass on the IP address only to the proxy.