go fmt accepts ./... (recursive)
improve a flakey test (100ms is the resolution for channel workers)
nsqd: put clientv2 ticker on instance to avoid goroutine start race
nsqd: cleanup topic/channel exitFlag
nsqd: disable logging in V2MultiSub benchmark
simplify test message creation
Merge pull request #171 from mreiferson/playground

nsqd: random tweaks