[Checkins] [zopefoundation/z3c.autoinclude] 06ec24: fixup! use bionic and test python 3.7

[Jens W. Klein]

  Branch: refs/heads/black
  Home:   https://github.com/zopefoundation/z3c.autoinclude
  Commit: 06ec244369ddcb3a19768c909e26f35e93c27698
      https://github.com/zopefoundation/z3c.autoinclude/commit/06ec244369ddcb3a19768c909e26f35e93c27698
  Author: Jens W. Klein <jk at kleinundpartner.at>
  Date:   2019-09-19 (Thu, 19 Sep 2019)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  fixup! use bionic and test python 3.7