[Checkins] [zopefoundation/DocumentTemplate] 9660e4: - fix up tox config and prepare for parallel runs

[Jens Vagelpohl]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/DocumentTemplate
  Commit: 9660e409fbf959c56a9621ef5123a65c88d5f2f1
      https://github.com/zopefoundation/DocumentTemplate/commit/9660e409fbf959c56a9621ef5123a65c88d5f2f1
  Author: Jens Vagelpohl <jens at netz.ooo>
  Date:   2020-05-18 (Mon, 18 May 2020)

  Changed paths:
    M buildout.cfg
    M setup.cfg
    M tox.ini

  Log Message:
  -----------
  - fix up tox config and prepare for parallel runs