[Checkins] [zopefoundation/Zope] 753683: Optimize 'OFS.ObjectManager.__contains__' method

[GitHub]

  Branch: refs/heads/patch2
  Home:   https://github.com/zopefoundation/Zope
  Commit: 753683e3172134ce58d9e07881da87783276e624
      https://github.com/zopefoundation/Zope/commit/753683e3172134ce58d9e07881da87783276e624
  Author: Malthe Borch <mborch at gmail.com>
  Date:   2016-06-29 (Wed, 29 Jun 2016)

  Changed paths:
    M doc/CHANGES.rst
    M src/OFS/ObjectManager.py

  Log Message:
  -----------
  Optimize 'OFS.ObjectManager.__contains__' method

Backported from master.