move n_object accounting responsibility to stevedores.

Fix n_object accounting detail in persistent.

in preparation for moving exp from obj to objcore

clearly isn't going to be a much used public interface.

we know what we're doing.

Reserving and returning space from wrk->aws is OK.

advantage from having two mechanisms.

or an string-insertion-sort feels right for me.

Using reserved workspace to tracking the params and qsort(3) to sort them
solves both problems.

As discussed on the latest VDD.

While here unify check.

This allows varnishlog and the other tools to group it automatically
with the client request.

Fixes #1269

This makes varnishncsa continue to log if the end timestamp should be missing for some reason.

Please test this ASAP (before 4.0.1)

Fixes: 	#1509

Fixes	#1524

used on requests.

Fixes	#1530

As discussed on the latest vdd.

Also kill superflous function and test. Is this a candidate for its
own file?

in the std vmod as discussed on the latest vdd.

Renamed it to std.querysort. Two tests where 
included. They both pass on my machine.

Reminded by: daghf

Seems like requiring a version from 2010 was way optimistic.

EL6 has v0.6 which was the first version rst2man appeared in.

We still have a few bugs left to fix, but start out with this so the
Jenkins machinery can be fine tuned in advance.