[Checkins] [zopefoundation/Zope] e9f101: Document request parameter handling (#640)

[Dieter Maurer]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/Zope
  Commit: e9f10101b8a4db64a2440e3a51561a7805ea44f5
      https://github.com/zopefoundation/Zope/commit/e9f10101b8a4db64a2440e3a51561a7805ea44f5
  Author: Dieter Maurer <d-maurer at users.noreply.github.com>
  Date:   2019-06-07 (Fri, 07 Jun 2019)

  Changed paths:
    M CHANGES.rst
    M docs/zdgbook/ObjectPublishing.rst
    M src/ZPublisher/HTTPRequest.py

  Log Message:
  -----------
  Document request parameter handling (#640)

* document request paramter handling #636

* document request paramter handling #636

* apply the improvements proposed by @jirmac00

* - wording and grammar changes

* - merging the documentation into the ZDG

* - point to the Zope Developer's Guide

* - updates following Dieter's suggestions

* remove `src/ZPublisher/request_params.rst` as its content is now integrated in `docs/zdgbook/ObjectPublishing.rst`

* bring request lookup order documentation in line with reality

* remove items from the "converter" list which are now classified as "aggregator"
use the same formatting type for "aggregator"s as for "converter"s

* Follow suggestion from icemac

Co-Authored-By: Michael Howitz <mh at gocept.com>

* Follow suggestion from icemac

Co-Authored-By: Michael Howitz <mh at gocept.com>

* Follow suggestion from icemac

Co-Authored-By: Michael Howitz <mh at gocept.com>