Pyeclib

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* Deprecate Jerasure support
* Use Py_ssize_t when calling PyArg_Parse
* Test against Python 3.8 - 3.10
* Use the Python Stable ABI; abi3 wheels may now be built with

python setup.py bdist_wheel --py-limited-api=cp35

* Various other minor bugs fixes and improvements

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* Find liberasurecode in more environments
* Test against Python 3.7
* Test with more backends

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* Added support for Phazr.IO libphazr library.
* Fixed error handling that caused segfaults.
* Use version number exposed by liberasurecode.
* various other minor bugs fixes and improvements.

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* Added support for ISA-L Cauchy
* Fixed memory leak in get_metadata
* Added soft warning log line when using liberasurecode <1.3.1

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* Updated name in setup.py to work with release tooling.

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* Updated liberasurecode dependency to 1.2.0.

* Fixed memory leak in get_segment_info (Launchpad bug 1604335).

* Properly return an error code if liberasurecode returns an
invalid fragment size.

* ECDriver() now requries "k" and "m" values to be passed in.

* Fix some requirements and installation instruction.