Merge pull request #55 from uncovertruth/pyup-update-pymemcache-2.0.0-to-2.1.1

Update pymemcache to 2.1.1

Author: Surgo

requirements.txt

@@ -4,5 +4,5 @@ flake8==3.7.5
 isort==4.3.4
 mock==2.0.0
 nose==1.3.7
-pymemcache==2.0.0
+pymemcache==2.1.1
 readme-renderer==24.0