nsqd: try to persist metadata on startup and fatal if err
Merge pull request #185 from mreiferson/writable_185

nsqd: Make sure data directory is writeable on startup
nsqd/nsqadmin: add empty topic feature
Merge pull request #183 from mreiferson/empty_topic_183

nsqd/nsqadmin: empty topic
add --max-backoff-duration to nsq_to_http:

* go-nsq: allow 0 to cleanly disable backoff
actually finally fix the counter page (3rd times a charm)
Merge pull request #186 from mreiferson/backoff_186

nsq_to_http: ability to set max backoff time
Merge pull request #191 from mreiferson/counter_last_time_i_swear_191

counter page sigh
show production users in README