Scheduled weekly dependency update for week 11 (#34)

* Update pytest from 3.2.2 to 3.4.2

* Update pytest-aiohttp from 0.1.3 to 0.3.0

Author: pyup.io bot

requirements.txt

@@ -1,5 +1,5 @@
-pytest==3.2.2
-pytest-aiohttp==0.1.3
+pytest==3.4.2
+pytest-aiohttp==0.3.0
 pytest-cov==2.5.1
 docutils==0.14
 -e .