[Checkins] [zopefoundation/z3c.form] dbc4b2: Avoid problem with zc.recipe.egg

[GitHub]

  Branch: refs/heads/coverage
  Home:   https://github.com/zopefoundation/z3c.form
  Commit: dbc4b27e7f4ee44a1c50d833676085b308539437
      https://github.com/zopefoundation/z3c.form/commit/dbc4b27e7f4ee44a1c50d833676085b308539437
  Author: Michael Howitz <mh at gocept.com>
  Date:   2017-08-24 (Thu, 24 Aug 2017)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Avoid problem with zc.recipe.egg

It is installed as wheel via pip but it returns that it is an invalid wheel.