Try temporarily disabling Python 3.5 testing and using miniconda for Python 3.6 and 3.7

Author: tleonhardt

.appveyor.yml

@@ -4,8 +4,9 @@ environment:
   PYTHONUNBUFFERED: 1
   MINICONDA: C:\\Miniconda3-x64
   matrix:
-  - PYTHON: "C:\\Python35"
-    TOX_ENV: "py35"
+# Disable Python 3.5 testing on AppVeyor for now until we fix issue with mock module install for python < 3.6
+#  - PYTHON: "C:\\Python35"
+#    TOX_ENV: "py35"
 
   - PYTHON: "C:\\Python36"
     TOX_ENV: "py36"