Scheduled weekly dependency update for week 09 (#259)

* Update pytest-mock from 1.7.0 to 1.7.1

* Update aiohttp from 3.0.3 to 3.0.6

Author: pyup.io bot

requirements-dev.txt

@@ -10,9 +10,9 @@ pynacl==1.2.1
 pytest==3.4.1
 pytest-aiohttp==0.3.0
 pytest-cov==2.5.1
-pytest-mock==1.7.0
+pytest-mock==1.7.1
 pytest-sugar==0.9.1
-aiohttp==3.0.3
+aiohttp==3.0.6
 multidict==4.1.0
 chardet==3.0.4
 yarl==1.1.1