web/server.go
func NewLoggingServeMux(conf Config) *LoggingServeMux {
	serveMux := http.NewServeMux()
	return &LoggingServeMux{serveMux, conf}
}
func NewLoggingServeMux(conf Config) *LoggingServeMux {
	serveMux := http.NewServeMux()
	return &LoggingServeMux{serveMux, conf}
}
// NewLoggingServeMux allocates and returns a new LoggingServeMux