Send2trash

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* Add console_script entry point (50)
* Increased python CI versions (52, 54)
* Fix minor issue in setup.py (53)
* Fix issue with windows tests importing modules on non-windows (55)
* Unit test cleanups, rewrites, and flake8 cleanups
* Windows: Fix legacy windows platform for multi-byte unicode and add tests
* macOS: Add alternative pyobjc version to potentially improve compatibility (51)

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* Add main method which allows calling via ``python -m send2trash somefile``
* Windows: Add support for using IFileOperation when pywin32 is present on Vista and newer
* Add support for passing multiple files at once in a list
* Windows: Batch multi-file calls to improve performance (42)
* Windows: Fix issue with SHFileOperation failing silently when path is not found (33)

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* More specific error when failing to create XDG fallback trash directory (20)
* Windows: Workaround for long paths (23)

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* Fix incompatibility with Python 3.6 on Windows. (18)

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* Fix crash on Windows introduced in v1.4.0. Oops... (14)

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* Use ``bytes`` instead of ``str`` for internal path handling in ``plat_other``. (13)