rework statsd's internal statistics to have a configurable prefix for each running copy of statsd - to prevent conflicts when multiple statsd send data to the same graphite - see https://github.com/etsy/statsd/issues/216
Merge branch 'statsdrename2' into p/statsprefix
Merge branch 'p/statsprefix' of https://github.com/keen99/statsd into fix-statsd-prefix