Scheduled weekly dependency update for week 41 (#106)

* Update pytest from 3.2.2 to 3.2.3

* Update sphinx from 1.6.3 to 1.6.4

Author: pyup.io bot

requirements-dev.txt

@@ -1,9 +1,9 @@
 -e .
 flake8==3.4.1
-pytest==3.2.2
+pytest==3.2.3
 pytest-cov==2.5.1
 coverage==4.4.1
-sphinx==1.6.3
+sphinx==1.6.4
 pep257==0.7.0
 aiohttp-session==1.0.1
 aiopg[sa]==0.13.1