nsqd: prevent racing metadata persistence
drop RDY count on existing connections

* fix a bug in how amount of allowed RDY to send was calculated
Merge pull request #258 from jehiah/new_connections_rdy_258

reader: update RDY on existing connections
Merge pull request #259 from mreiferson/persist_race_259

nsqd: race when persisting metadata
nsqadmin: single node view

* display new memstats from #249
* consolidate statsd host key stuff
Merge pull request #256 from mreiferson/single_node_256

nsqadmin: single node view
writer: refactoring to support async functionality
nsq_to_nsq: proxy a topic from producer(s) to destination nsqd over TCP
Merge pull request #255 from mreiferson/async_writer_255

writer: support "async" publishing / nsq_to_nsq
update ChangeLog
fix 32bit alignment issues for 64bit atomic variables
Merge pull request #244 from mreiferson/alignment_244

nsq: 386 arch support
update travis builds to go1.1.2 and add GOARCH=386
nsqadmin: add node information
Merge pull request #260 from mreiferson/notification_260

nsqadmin: notification for tombstone_topic_producer missing node data
bump 0.2.22; go-nsq 0.3.2; update ChangeLog
move examples to apps & bench
Merge pull request #262 from mreiferson/apps_262

rename examples dir
go-nsq: move to github.com/bitly/go-nsq
Merge pull request #264 from mreiferson/move_go_nsq_264

go-nsq: move to github.com/bitly/go-nsq