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* a complete rewrite of the backport; now single codebase working on Python
2.6 - 3.5. To use on Python 3 import ``from backports import configparser``
instead of the built-in version.
* compatible with 3.5.1
* fixes 1: versioning non-compliant with PEP 386
* fixes 3: ``reload(sys); sys.setdefaultencoding('utf8')`` in setup.py
* fixes 5: Installing the backport on Python 3 breaks virtualenv
* fixes 6: PyPy compatibility