[Checkins] [zopefoundation/zope.interface] 9c9df6: Fix issue with missing `__init__.py`.

[Michael Howitz]

  Branch: refs/heads/fix-68
  Home:   https://github.com/zopefoundation/zope.interface
  Commit: 9c9df6931309fbb04286df6828647e7f2d634b84
      https://github.com/zopefoundation/zope.interface/commit/9c9df6931309fbb04286df6828647e7f2d634b84
  Author: Michael Howitz <mh at gocept.com>
  Date:   2019-04-18 (Thu, 18 Apr 2019)

  Changed paths:
    M CHANGES.rst
    M setup.py

  Log Message:
  -----------
  Fix issue with missing `__init__.py`.

Fixes #68.