[Checkins] [zopefoundation/Zope] 1fb6ed: Port whitelist creation from zope.browserpage

[Matthew Wilkes]

  Branch: refs/heads/wilkes/397-allowed-attributes
  Home:   https://github.com/zopefoundation/Zope
  Commit: 1fb6ed8ab432bc636dd480c82a8b5942bcb7b03b
      https://github.com/zopefoundation/Zope/commit/1fb6ed8ab432bc636dd480c82a8b5942bcb7b03b
  Author: Matthew Wilkes <git at matthewwilkes.name>
  Date:   2019-05-27 (Mon, 27 May 2019)

  Changed paths:
    M src/Products/Five/browser/metaconfigure.py

  Log Message:
  -----------
  Port whitelist creation from zope.browserpage