Merge pull request #1060 from python-hyper/requires-io-master

[requires.io] dependency update on master branch

Author: Lukasa

tox.ini

@@ -47,7 +47,7 @@ commands =
 [testenv:packaging]
 basepython=python2.7
 deps =
-    check-manifest==0.35
+    check-manifest==0.36
     readme_renderer==17.2
 commands =
     check-manifest