func Interactive() {
	Logger.SetHandler(log15.MultiHandler(
		log15.LvlFilterHandler(
			log15.LvlError,
			log15.StderrHandler)))
}
Interactive configures the logger to log messages of level Info or higher to Stdout and messages
of level Error or lesser to Stderr.
package log
import "github.com/inconshreveable/log15"
var (
	Logger log15.Logger
)
func init() {
	Logger = log15.New()
	Logger.SetHandler(log15.DiscardHandler())
}