nsqd: loosen timings on TestTouch
Merge pull request #423 from mreiferson/test_touch_423

nsqd: msg.Attempts race condition detected
nsqd: healthy flag
Merge pull request #422 from mreiferson/unhealthy_422

nsqd: "unhealthy mode" when diskqueue writes fail
Revert "nsqd: healthy flag"

This reverts commit babf8ea3b68d7e75704073395b72c3f648c33409.
bump v0.2.30 stable