Zope-testing

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- Added support for creating doctests as methods of
``unittest.TestCase`` classes so that they can found automatically
by test runners, like *nose* that ignore test suites.

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- **Actually** remove long-deprecated ``zope.testing.doctest`` (announced as
removed in 4.0.0) and ``zope.testing.doctestunit``.

- Add support for PyPy and PyPy3.

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- Add support for Python 3.4.

- Update ``boostrap.py`` to version 2.2.

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- Adjust Trove classifiers to reflect the currently supported Python
versions. Officially drop Python 2.4 and 2.5. Add Python 3.3.

- LP: 1055720: Fix failing test on Python 3.3 due to changed exception
messaging.

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- Fix: Windows test failure.

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- Add context-manager support to ``zope.testing.setupstack``

- Make ``zope.testing.setupstack`` usable with all tests, not just
doctests and added ``zope.testing.setupstack.globs``, which makes it
easier to write test setup code that workes with doctests and other
kinds of tests.

- Add the ``wait`` module, which makes it easier to deal with
non-deterministic timing issues.

- Rename ``zope.testing.renormalizing.RENormalizing`` to
``zope.testing.renormalizing.OutputChecker``. The old name is an
alias.

- Update tests to run with Python 3.

- Label more clearly which features are supported by Python 3.

- Reorganize documentation.