histogram.go
func (m *CirconusMetrics) RecordValue(metric string, val float64) {
	m.SetHistogramValue(metric, val)
}
func (m *CirconusMetrics) RecordValue(metric string, val float64) {
	m.SetHistogramValue(metric, val)
}
func ( m * CirconusMetrics ) RecordValue ( metric string , val float64 ) { m . SetHistogramValue ( metric , val ) }
// RecordValue adds a value to a histogram
RecordValue adds a value to a histogram