Aakash Shah

IPv6 addresses can have brackets around their host, this causes issues here: https://github.com/nats-io/nats.rb/blob/1bb2325919d4f1a0324f9f14a983243a3301623a/lib/nats/client.rb#L229 where `EM.connect()` eventually goes down to a `gethostname` call. Simple hack is to update that to something...