[Checkins] [zopefoundation/Products.ZSQLMethods] f0b7ae: The version of `six` needs to be enforced last.

[GitHub]

  Branch: refs/heads/fix-6
  Home:   https://github.com/zopefoundation/Products.ZSQLMethods
  Commit: f0b7ae563aac053f8fd6bf97d29c70be970f7b19
      https://github.com/zopefoundation/Products.ZSQLMethods/commit/f0b7ae563aac053f8fd6bf97d29c70be970f7b19
  Author: Michael Howitz <mh at gocept.com>
  Date:   2017-10-25 (Wed, 25 Oct 2017)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  The version of `six` needs to be enforced last.