Configurable log warnings
Configurable log warnings

This will allow us to see warnings immediately during development,
and log them in production.

JIRA:NCP-1834

roaet/quark,rackerlabs/quark,rackerlabs/quark,alanquillin/quark,roaet/quark,lmaycotte/quark,alanquillin/quark,lmaycotte/quark