[Checkins] [zopefoundation/Zope] 311552: - Fix broken deprecated import when ZServer is not...

[Jens Vagelpohl]

  Branch: refs/heads/4.x
  Home:   https://github.com/zopefoundation/Zope
  Commit: 31155250a224c8ebb941ab4edd5af60ff26a2cad
      https://github.com/zopefoundation/Zope/commit/31155250a224c8ebb941ab4edd5af60ff26a2cad
  Author: Jens Vagelpohl <jens at netz.ooo>
  Date:   2019-11-26 (Tue, 26 Nov 2019)

  Changed paths:
    M CHANGES.rst
    M src/OFS/interfaces.py

  Log Message:
  -----------
  - Fix broken deprecated import when ZServer is not installed (#736)