Feuerlabs/exometer — pull request #69 by uwiger (2014-07-16 20:08:56+00:00)
Title: Uw minor additions

* add {histogram,Vs} op to exometer_function evaluator
* add exometer_util:histogram/[1,2]
* add exometer:ensure/3 & select_count/1
* add 'total' datapoint to histogram