Change DataPoint to array of pointers (#146)

Author: jkorzekwa-atlassian

series.go

@@ -15,7 +15,7 @@ import (
 
 // DataPoint is a tuple of [UNIX timestamp, value]. This has to use floats
 // because the value could be non-integer.
-type DataPoint [2]float64
+type DataPoint [2]*float64
 
 // Metric represents a collection of data points that we might send or receive
 // on one single metric line.