Attempt to carry over extras(select) values from parent
Update tests.py
Shorten test docstring
Use legacy compatible approach
Don't try to access __slots__ during copy()

When subclassing Django will copy managers from the ancestor class. Copying in turn calls `copy.copy()` which checks whether the object uses `__slots__` or `__dict__`. This could result in the manager calling `self.get_queryset()` before all models get registered with the ORM.
Deal with Django <1.7 using SortedDict wherein keys() is a generator, not a view
Update AUTHORS and CHANGES
Remove contenttypes from INSTALLED_APPS for testing; no longer needed.
Silence BooleanField default warnings.
Merge pull request #101 from funkybob/issue-34

Attempt to carry over extras(select) values from parent
Reorder AUTHORS.rst.
Move InheritanceManager extra fix to the 'master' section of changelog.
Merge pull request #105 from patrys/patch-1

Don't try to access __slots__ during copy()
Update AUTHORS and changelog.
Reference docs, not README, in CONTRIBUTING doc.
Fix case of Django dependency. Thanks Travis Swicegood.
Bump version to 2.0.1.
Bump version to 2.0.1.post1.
Remove all non-ASCII characters in CHANGES.rst. Fixes GH-113.

Apologies to those whose names are mangled by this change.

It seems that distutils makes it impossible to handle non-ASCII content in a
setup.py long_description in a way that reliably works on Python 3 when the
system encoding is ASCII.
Bump version to 2.0.2.