Merge #163

163: Scheduled weekly dependency update for week 49 r=mithrandi a=pyup-bot




## Updates
Here's a list of all the updates bundled in this pull request. I've added some links to make it easier for you to find all the information you need.
<table align="center">

<tr>
<td><b>cryptography</b></td>
<td align="center">2.1.3</td>
<td align="center">&raquo;</td>
<td align="center">2.1.4</td>
<td>
     <a href="https://pypi.python.org/pypi/cryptography">PyPI</a> | <a href="https://pyup.io/changelogs/cryptography/">Changelog</a> | <a href="https://github.com/pyca/cryptography">Repo</a> 

</td>

<tr>
<td><b>pyopenssl</b></td>
<td align="center">17.4.0</td>
<td align="center">&raquo;</td>
<td align="center">17.5.0</td>
<td>
     <a href="https://pypi.python.org/pypi/pyopenssl">PyPI</a> | <a href="https://pyup.io/changelogs/pyopenssl/">Changelog</a> | <a href="https://pyopenssl.org/">Homepage</a> | <a href="http://pythonhosted.org/pyOpenSSL/">Docs</a> 

</td>

</tr>
</table>



## Changelogs


### pyopenssl 17.4.0 -> 17.5.0

>### 17.5.0

>-------------------


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

>* The minimum ``cryptography`` version is now 2.1.4.


>Deprecations:
>^^^^^^^^^^^^^

>*none*


>Changes:
>^^^^^^^^

>- Fixed a potential use-after-free in the verify callback and resolved a memory leak when loading PKCS12 files with ``cacerts``.
>  `723 &lt;https://github.com/pyca/pyopenssl/pull/723&gt;`_
>- Added ``Connection.export_keying_material`` for RFC 5705 compatible export of keying material.
>  `725 &lt;https://github.com/pyca/pyopenssl/pull/725&gt;`_

>----












That's it for now!

Happy merging! 🤖

requirements.txt

@@ -11,7 +11,7 @@ automat==0.6.0
 axiom==0.7.5
 cffi==1.11.2; platform_python_implementation != 'PyPy'
 constantly==15.1.0
-cryptography==2.1.3
+cryptography==2.1.4
 cssutils==1.0.2
 enum34==1.1.6
 epsilon==0.7.1
@@ -27,7 +27,7 @@ pillow==4.3.0
 pyasn1-modules==0.2.1
 pyasn1==0.4.2
 pycparser==2.18; platform_python_implementation != 'PyPy'
-pyopenssl==17.4.0
+pyopenssl==17.5.0
 pyrsistent==0.14.1
 python-dateutil==2.6.1
 pytz==2017.3