Pathlib2-unicode

^^^^^^^^^^^^^

- Fix tests for systems where filesystem encoding only supports ascii
(reported by yurivict, fixed with help of honnibal, see issue 30).

- Use modern setuptools syntax for specifying conditional scandir
dependency (see issue 31).

- Remove legacy use of support module from old pathlib module (see
issue 39). This fixes the tests for Python 3.6.

- Drop the "from __future__ import unicode_literals" and -Qnew tests
as it introduced subtle bugs in the tests, and maintaining separate
test modules for these legacy features seems not worth the effort.

- Drop Python 3.2 support, as scandir no longer supports it.

^^^^^^^^^^^^^

- Sync with upstream pathlib from CPython 3.6.1 (7d1017d).

^^^^^^^^^^^^^

- Fix conditional scandir dependency in wheel (reported by AvdN, see
issue 20 and pull request 21).

^^^^^^^^^^^^^

- Sync with upstream pathlib from CPython 3.5.2 and 3.6.0: fix various
exceptions, empty glob pattern, scandir, __fspath__.

- Support unicode strings to be used to construct paths in Python 2
(reported by native-api, see issue 13 and pull request 15).

^^^^^^^^^^^^^

- Sync with upstream pathlib from CPython 3.5.0: gethomedir, home,
expanduser.

^^^^^^^^^^^^^

- Fix TypeError exceptions in write_bytes and write_text (contributed
by Emanuele Gaifas, see pull request 2).