Merge pull request #435 from mreiferson/more_logging_435

more logging refactoring
nsqlookupd: move registrationdb to util
nsqd: use Serf for gossip
registrationdb: consolidate Producer and PeerInfo
wip rebroadcast
fixup nsqd rebase
reconnect
add HTTPS port
refactoring
rebase siht
rebase
more
move where serf is init
first pass at test