Eth-keyfile

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- Remove deprecated `setuptools-markdown` dependency (https://github.com/ethereum/eth-keyfile/pull/37)
- Use twine to upload package to pypi

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- Mitigate timing attack (https://github.com/ethereum/eth-keyfile/pull/13)
- Fix typo in README (https://github.com/ethereum/eth-keyfile/pull/14)
- Migrate to CircleCI (https://github.com/ethereum/eth-keyfile/pull/22)
- Allow salt size specification on keyfile creation
(https://github.com/ethereum/eth-keyfile/pull/25)
- Drop Python 3.5 and 3.6 support, Add Python 3.8-3.10 support and update corresponding dependencies (https://github.com/ethereum/eth-keyfile/pull/33)

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- Rename repo and module to `eth-keyfile`
- Added deprecation warning for python 2

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- Add `address` key to generated keyfile JSON

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- Remove `0x` prefixes from hex values in generated json.

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Initial release