Bump twisted from 16.0.0 to 19.2.1

[dependabot[bot]]

Bumps twisted from 16.0.0 to 19.2.1.

Changelog

*Sourced from [twisted's changelog](https://github.com/twisted/twisted/blob/twisted-19.2.1/NEWS.rst).* > Twisted 19.2.1 (2019-06-06) > =========================== > > No significant changes. > > > Conch > ----- > > No significant changes. > > > Web > --- > > Bugfixes > ~~~~~~~~ > > - All HTTP clients in twisted.web.client now raise a ValueError when called with a method and/or URL that contain invalid characters. This mitigates CVE-2019-12387. Thanks to Alex Brasetvik for reporting this vulnerability. ([#9647](https://github-redirect.dependabot.com/twisted/twisted/issues/9647)) > > > Mail > ---- > > No significant changes. > > > Words > ----- > > No significant changes. > > > Names > ----- > > No significant changes. > > > Twisted 19.2.0 (2019-04-07) > =========================== > > This is the final release that will support Python 3.4. > > Features > -------- > > - twisted.internet.ssl.CertificateOptions now uses 32 random bytes instead of an MD5 hash for the ssl session identifier context. ([#9463](https://github-redirect.dependabot.com/twisted/twisted/issues/9463)) > - DeferredLock and DeferredSemaphore can be used as asynchronous context > managers on Python 3.5+. ([#9546](https://github-redirect.dependabot.com/twisted/twisted/issues/9546)) > ... (truncated)

Commits

- [`c077685`](https://github.com/twisted/twisted/commit/c0776850e756adfcdc179a7fd9e4c8f5cbc4838d) towncrier - [`4cc45bd`](https://github.com/twisted/twisted/commit/4cc45bd798ea8a22f54af64f02f7f539b4aa89e3) incremental - [`8a47339`](https://github.com/twisted/twisted/commit/8a473397d5cdecff38b95a94fc7fc75dd06217dc) Prevent CRLF injections described in CVE-2019-12387 - [`f9e12bd`](https://github.com/twisted/twisted/commit/f9e12bd88618682f7cdba342fbaea1212073533f) readme - [`c49246d`](https://github.com/twisted/twisted/commit/c49246dedd899ed63e03f4778dc2e9c9e74ad332) towncrier final - [`43d7718`](https://github.com/twisted/twisted/commit/43d7718eca9ec7536b5606aafe5acccb7a47a055) Revert "19.2.0rc1 towncrier" - [`d55affd`](https://github.com/twisted/twisted/commit/d55affd44c55bac2c4fe387df7022cee047eb7f8) Revert "twisted 19.2.0rc2 changelog" - [`99fec13`](https://github.com/twisted/twisted/commit/99fec138881359a4c06a1eb96284f5bdba0ce340) incremental - [`920966d`](https://github.com/twisted/twisted/commit/920966d55d7afec929427bf33b435fa348cadac7) twisted 19.2.0rc2 changelog - [`f2fb8e3`](https://github.com/twisted/twisted/commit/f2fb8e346d42e4888e2870eeda7dee518111807b) twisted 19.2.0rc2 - Additional commits viewable in [compare view](https://github.com/twisted/twisted/compare/twisted-16.0.0...twisted-19.2.1)

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[coveralls]

Coverage remained the same at 58.11% when pulling 67f6d138d63e69882bc2e888a292e41d43f01178 on dependabot/pip/twisted-19.2.1 into d32cd5a7213f6475d70077c4d23273e8b7fdd02f on master.

[coveralls]

Coverage remained the same at 58.11% when pulling 67f6d138d63e69882bc2e888a292e41d43f01178 on dependabot/pip/twisted-19.2.1 into d32cd5a7213f6475d70077c4d23273e8b7fdd02f on master.

[dependabot[bot]]

Superseded by #102.