allow SOCKS5 thanks to golang 1.9/1.10 [fixes #253]
allow SOCKS5 thanks to golang 1.9/1.10 [fixes #253]

geofffranks/spruce,geofffranks/spruce,HeavyWombat/spruce,HeavyWombat/spruce,HeavyWombat/spruce,geofffranks/spruce