[Checkins] [zopefoundation/Zope] 7e6aea: - add a subsection pointing to the 4.x branch and ...

[Jens Vagelpohl]

  Branch: refs/heads/gh-pages
  Home:   https://github.com/zopefoundation/Zope
  Commit: 7e6aea869518d17d9da954d80b0cfcdc7f44d1a5
      https://github.com/zopefoundation/Zope/commit/7e6aea869518d17d9da954d80b0cfcdc7f44d1a5
  Author: Jens Vagelpohl <jens at netz.ooo>
  Date:   2019-10-12 (Sat, 12 Oct 2019)

  Changed paths:
    M README.md
    M build_index.py
    A releases/4.x/constraints.txt
    A releases/4.x/requirements-full.txt
    A releases/4.x/versions-prod.cfg
    A releases/4.x/versions.cfg
    M releases/master/constraints.txt
    M releases/master/requirements-full.txt
    M releases/master/versions-prod.cfg
    M releases/master/versions.cfg

  Log Message:
  -----------
  - add a subsection pointing to the 4.x branch and update everything

The 4.x subsection is needed so individual packages' buildout configuration can
point to it instead of master, because master does not support Python 2
anymore while individual packages may still want to support it.