[developers] Structured output from ACE

[Stephan Oepen]

> The output is formatted as (a list of) s-expressions, and is identical to
> the data sent to [incr tsdb()] [...]

thanks, woodley.  that was in fact a thought i too had entertained
during the API discussion: my RESTful server actually works off [incr
tsdb()] item structures, so ACE communicating with different callers
in the outside world using that same format seems utterly plausible to
me :-).

cheers, oe