Move logging behind an interface.
Move logging behind an interface.

This ways, clients don't have to be using log.Logger.

quipo/statsd,hoffoo/statsd,dordille/statsd,mirrr/statsd,RyzacInc/statsd,privodoc/statsd,CrowdSurge/statsd,jmptrader/statsd-3,venugopalkandru/statsd,goibibo/statsd