[Checkins] [zopefoundation/Persistence] 58d8ea: Make sure the pure python versions do not break. (...

[Michael Howitz]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/Persistence
  Commit: 58d8eaea8e4df8485484ee604f147430a5312401
      https://github.com/zopefoundation/Persistence/commit/58d8eaea8e4df8485484ee604f147430a5312401
  Author: Michael Howitz <mh at gocept.com>
  Date:   2019-05-08 (Wed, 08 May 2019)

  Changed paths:
    M .coveragerc
    M .travis.yml
    M tox.ini

  Log Message:
  -----------
  Make sure the pure python versions do not break. (#19)

Fixes #18

Plus test pure versions on TravisCI.