[Checkins] [zopefoundation/ZConfig] b2b641: remove --isolated option for flake8

[GitHub]

  Branch: refs/heads/fd-flake8-happiness
  Home:   https://github.com/zopefoundation/ZConfig
  Commit: b2b641d2e63eb697cd1c1756dac69b8c70eb8888
      https://github.com/zopefoundation/ZConfig/commit/b2b641d2e63eb697cd1c1756dac69b8c70eb8888
  Author: Fred Drake <fred.drake at keepertech.com>
  Date:   2018-10-30 (Tue, 30 Oct 2018)

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

  Log Message:
  -----------
  remove --isolated option for flake8

- unlikely that travis ci has "user" flake8 settings installed
- setting up in-project settings in setup.cfg is not a bad thing
  (but be wary of per-user settings stored outside the project!)



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