Use ServiceLocator to allow replacing the DefaultRouteHandlerChain
Add a Pippo Metrics module to collect metric data of route handlers
Add a getLocalHostname() method to PippoSettings
Add a Ganglia reporter for Pippo Metrics
Add a Graphite reporter for Pippo Metrics
Add an InfluxDB reporter for Pippo Metrics
Add a Librato reporter for Pippo Metrics
Added missing license headers
Merge pull request #38 from decebals/metrics

Add a Metrics module and the most common reporter integrations