Added JSON->io.Writer; consistent ordering to WriteOnce
gofmt
Allow custom percentiles to report to Graphite
Merge branch 'master' of github.com:stuartcarnie/go-metrics

I refactored and renamed for clarity and consistency.  I added WriteJSON
to wrap WriteJSONOnce.
Merge branch 'conf_graphite_percentiles' of github.com:kaero/go-metrics
Update influxdb.go

Fixes moved repo:

https://github.com/influxdb/influxdb-go
do not shadow return value