[Checkins] [zopefoundation/AccessControl] 12235a: Try out Python 3.9 on TravisCI. (#96)

[Michael Howitz]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/AccessControl
  Commit: 12235a68e567be7fefc2591860e6d5d8de2a4e60
      https://github.com/zopefoundation/AccessControl/commit/12235a68e567be7fefc2591860e6d5d8de2a4e60
  Author: Michael Howitz <mh at gocept.com>
  Date:   2020-05-08 (Fri, 08 May 2020)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Try out Python 3.9 on TravisCI. (#96)

* Try out Python 3.9 on TravisCI.
* Allow Py3.9 to fail.

Co-authored-by: Jens Vagelpohl <jens at netz.ooo>