Odict

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- pypi masness.
[rnix]

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- Compatible with Python 3 and pypy.
[rnix]

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- Fix permission problem in 1.5.1 release, some files were only rw by user.
[jensens, 2016-11-25]

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- Implement ``__copy__`` and ``__deepcopy__`` in order to work with Python 2.7.
[rnix, 2012-10-15]

- Use ``try/except`` instead of ``in`` in ``__contains__``.
[rnix, 2012-10-15]

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- Implement ``alter_key``.
[rnix, 2012-05-18]

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- Remove unused error variable.
[rnix, 2011-11-28]

- Add note on why to check with ``==`` and ``!=`` against ``_nil``.
[rnix, 2011-11-28]