Scheduled weekly dependency update for week 01 (#126)

* Update pytest from 3.3.1 to 3.3.2

* Update sphinx from 1.6.5 to 1.6.6

* Update aiopg from 0.13.1 to 0.13.2

Author: pyup.io bot

requirements-dev.txt

@@ -1,12 +1,12 @@
 -e .
 flake8==3.5.0
-pytest==3.3.1
+pytest==3.3.2
 pytest-cov==2.5.1
 coverage==4.4.2
-sphinx==1.6.5
+sphinx==1.6.6
 pep257==0.7.0
 aiohttp-session==2.1.0
-aiopg[sa]==0.13.1
+aiopg[sa]==0.13.2
 aioredis==1.0.0
 hiredis==0.2.0
 passlib==1.7.1