Update pyopenssl to 19.1.0

[pyup-bot]

This PR updates pyopenssl from 17.5.0 to 19.1.0.

Changelog

19.1.0

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


Backward-incompatible changes:
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

- Removed deprecated ``ContextType``, ``ConnectionType``, ``PKeyType``, ``X509NameType``, ``X509ReqType``, ``X509Type``, ``X509StoreType``, ``CRLType``, ``PKCS7Type``, ``PKCS12Type``, and ``NetscapeSPKIType`` aliases.
Use the classes without the ``Type`` suffix instead.
`814 <https://github.com/pyca/pyopenssl/pull/814>`_
- The minimum ``cryptography`` version is now 2.8 due to issues on macOS with a transitive dependency.
`875 <https://github.com/pyca/pyopenssl/pull/875>`_

Deprecations:
^^^^^^^^^^^^^

- Deprecated ``OpenSSL.SSL.Context.set_npn_advertise_callback``, ``OpenSSL.SSL.Context.set_npn_select_callback``, and ``OpenSSL.SSL.Connection.get_next_proto_negotiated``.
ALPN should be used instead.
`820 <https://github.com/pyca/pyopenssl/pull/820>`_


Changes:
^^^^^^^^

- Support ``bytearray`` in ``SSL.Connection.send()`` by using cffi's from_buffer.
`852 <https://github.com/pyca/pyopenssl/pull/852>`_
- The ``OpenSSL.SSL.Context.set_alpn_select_callback`` can return a new ``NO_OVERLAPPING_PROTOCOLS`` sentinel value
to allow a TLS handshake to complete without an application protocol.


----

19.0.0

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


Backward-incompatible changes:
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

- ``X509Store.add_cert`` no longer raises an error if you add a duplicate cert.
`787 <https://github.com/pyca/pyopenssl/pull/787>`_


Deprecations:
^^^^^^^^^^^^^

*none*


Changes:
^^^^^^^^

- pyOpenSSL now works with OpenSSL 1.1.1.
`805 <https://github.com/pyca/pyopenssl/pull/805>`_
- pyOpenSSL now handles NUL bytes in ``X509Name.get_components()``
`804 <https://github.com/pyca/pyopenssl/pull/804>`_



----

18.0.0

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


Backward-incompatible changes:
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

- The minimum ``cryptography`` version is now 2.2.1.
- Support for Python 2.6 has been dropped.


Deprecations:
^^^^^^^^^^^^^

*none*


Changes:
^^^^^^^^

- Added ``Connection.get_certificate`` to retrieve the local certificate.
`733 <https://github.com/pyca/pyopenssl/pull/733>`_
- ``OpenSSL.SSL.Connection`` now sets ``SSL_MODE_AUTO_RETRY`` by default.
`753 <https://github.com/pyca/pyopenssl/pull/753>`_
- Added ``Context.set_tlsext_use_srtp`` to enable negotiation of SRTP keying material.
`734 <https://github.com/pyca/pyopenssl/pull/734>`_


----

Links

• PyPI: https://pypi.org/project/pyopenssl
• Changelog: https://pyup.io/changelogs/pyopenssl/
• Homepage: https://pyopenssl.org/
• Docs: https://pythonhosted.org/pyOpenSSL/

[coveralls]

Coverage increased (+0.06%) to 30.441% when pulling af70307 on pyup-update-pyopenssl-17.5.0-to-19.1.0 into 8613d9d on master.