socks5 proxy support

[terminaldweller]

does girc support socks5 proxies? I tried passing socks5 with HTTPS_PROXY and ALL_PROXY but it did not work.

[yunginnanet]

girc/conn.go

Lines 220 to 231 in fcd9a86

	// DialerConnect allows you to specify your own custom dialer which implements
	// the Dialer interface.
	//
	// An example of using this library would be to take advantage of the
	// golang.org/x/net/proxy library:
	//
	// proxyUrl, _ := proxyURI, err = url.Parse("socks5://1.2.3.4:8888")
	// dialer, _ := proxy.FromURL(proxyURI, &net.Dialer{Timeout: 5 * time.Second})
	// _ := girc.DialerConnect(dialer)
	func (c *Client) DialerConnect(dialer Dialer) error {
	return c.internalConnect(nil, dialer)
	}

Yes :)