[Checkins] [zopefoundation/zope.annotation] 591be7: Reach 100% coverage.

[GitHub]

  Branch: refs/heads/issue2
  Home:   https://github.com/zopefoundation/zope.annotation
  Commit: 591be728f71208fb5f184e741963e873decb6495
      https://github.com/zopefoundation/zope.annotation/commit/591be728f71208fb5f184e741963e873decb6495
  Author: Jason Madden <jamadden at gmail.com>
  Date:   2017-06-02 (Fri, 02 Jun 2017)

  Changed paths:
    M CHANGES.rst
    M src/zope/__init__.py
    M src/zope/annotation/attribute.py
    M src/zope/annotation/tests/annotations.py
    M src/zope/annotation/tests/test_attributeannotations.py
    M src/zope/annotation/tests/test_configure.py
    A src/zope/annotation/tests/test_factory.py

  Log Message:
  -----------
  Reach 100% coverage.

Fixes #2.

The most notable feature is that AttributeAnnotations is now always a
subclass of collections.MutableMixin. Previously this was different
for Python 2 and Python 3. This change unifies the behaviour and makes
things like `isinstance(annotations, collections.Mapping)` always true.