Xdgappdirs

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- Add support for returning ``pathlib.Path`` (1).

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- Rename module to ``xdgappdirs`` to allow coexistence with ``appdirs``.

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- Deviate from appdirs (see top of README)
- [PR 92] Don't import appdirs from setup.py which resolves issue 91
- Add Python 3.7 support
- Remove support for end-of-life Pythons 2.6, 3.2, and 3.3

Project officially classified as Stable which is important
for inclusion in other distros such as ActivePython.

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- [PR 76] Python 3.6 invalid escape sequence deprecation fixes
- Fix for Python 3.6 support

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- [PR 84] Allow installing without setuptools
- [PR 86] Fix string delimiters in setup.py description
- Add Python 3.6 support

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- [issue 38] Fix _winreg import on Windows Py3
- [issue 55] Make appname optional