Jarn-mkrelease

----------------

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- Add -m option to skip setuptools extensions.
[stefan]

- Never read existing ``SOURCES.txt`` files.
[stefan]

- Allow --egg as alias for --binary.
[stefan]

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- Fix conditional include of keyring.
[stefan]

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- Add support for source distributions in gztar format.
[stefan]

- Add support for wheel files.
[stefan]

- Allow multiple archive formats per release.
[stefan]

- Protect against bad or incomplete locale settings.
[stefan]

- The secondary thread would sometimes not terminate in Python 2.
[stefan]

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- Support setuptools >= 33.1.0.
[stefan]

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- Catch up with late-2016 PyPI API change.
[stefan]

- Add -R option to skip the register step.
[stefan]

- Support Python 2.6 - 3.6 without 2to3.
[stefan]

- Handle return code changes in Mercurial 3.1.1.
[stefan]