Refs #27025 -- Added Python 3.6 to tox.ini.

tox.ini

@@ -25,7 +25,7 @@ setenv =
     PYTHONDONTWRITEBYTECODE=1
 deps =
     py{2,27}: -rtests/requirements/py2.txt
-    py{3,34,35}: -rtests/requirements/py3.txt
+    py{3,34,35,36}: -rtests/requirements/py3.txt
     postgres: -rtests/requirements/postgres.txt
     mysql: -rtests/requirements/mysql.txt
     oracle: -rtests/requirements/oracle.txt