StatsD configured with legacy namespace

[ediskandarov]

While it is supposed to be a breaking change, I think that namespace should be configured with non legacy namespace.

https://github.com/etsy/statsd/blob/master/docs/namespacing.md

[ahuff44]

agreed - this confused me to no end

AFAICT the change would be as simple as adding

  "graphite": {
    "legacyNamespace": false
  }

to /opt/statsd/config.js

(however, this would be quite a breaking change... idk the best way to approach that)