Feature: Output multiple values at once

[Geving]

It could be useful for users to be able to retrieve several values at once. Suggested output:

{
  "avg":123.456,
  "max":999,
  "min":-10,
  "count":150,
  "last":345,
  "timespan":3587
}

where "last" is the last value entered into the node, timespan indicates time since first datapoint in the average. Alternatively, a timestamp might be just as useful: "timeOfFirstPoint", "timeOfMinPoint" and "timeOfMaxPoint" are good candidates.

[AmyAmy]

I agree that this would be useful, especially with min and max commands which may be useful to retrieve together. The time of the points currently aren't tracked, so that may take some figuring out how to best approach.