[metrics-user] Grahphite

I've included the metrics-scala in my Akka project. Now how to hook it up with graphite. 

In dropwizard, it is simple configurations https://dropwizard.github.io/dropwizard/manual/configuration.html#graphite-reporter. Any advice to set it up in akka? 

As metrics-scala simply delegates to metrics-core, you can use the same instructions.