[Checkins] [zopefoundation/Zope] 2e0fb1: require `Chameleon>=3.7.0`; adapt to new `chameleo...

[Dieter Maurer]

  Branch: refs/heads/issue717-pttales-4.x
  Home:   https://github.com/zopefoundation/Zope
  Commit: 2e0fb12ac5eb2c7bc3307d6c4b3edb5ef43ff393
      https://github.com/zopefoundation/Zope/commit/2e0fb12ac5eb2c7bc3307d6c4b3edb5ef43ff393
  Author: dieter <dieter at handshake.de>
  Date:   2020-03-27 (Fri, 27 Mar 2020)

  Changed paths:
    M requirements-full.txt
    M setup.py
    M src/Products/PageTemplates/engine.py
    M src/Products/PageTemplates/tests/input/RepeatVariable.html

  Log Message:
  -----------
  require `Chameleon>=3.7.0`; adapt to new `chameleon` version