Added requests/responses deps
RemoteRW creates topic/chan
Created ShardedGroup/User that integrate w NSQ
Updated context init, removed redundant defaults
Added NSQ opts, IRC flags
Modded tests to handle requests
Updated docstrings
Requests failing on NSQLookupd only log now
Deferred nsq.Writer startup to ensure it runs and connects
Receive works with sender name (no need for other sender info)
Merge pull request #65 from kzvezdarov/nsq-int

Nsq integration