Merge pull request encode#3974 from jpadilla/master

Update Django security releases 1.9.3 and 1.8.10

Author: xordoquy

tox.ini

@@ -13,8 +13,8 @@ setenv =
        PYTHONDONTWRITEBYTECODE=1
        PYTHONWARNINGS=once
 deps =
-        django18: Django==1.8.9
-        django19: Django==1.9.2
+        django18: Django==1.8.10
+        django19: Django==1.9.3
         -rrequirements/requirements-testing.txt
         -rrequirements/requirements-optionals.txt