Tox can now be used for testing all supported Python and Django versions. Use tox-travis to reduce the duplication of testing configuration. Travis will now use the tox configuration to build all environments. Easier to keep in sync.
I wonder if we should just drop Python 3.3 from the test matrix. Not a big deal, but I don't think it has significant adoption (and is only officially supported through Django 1.8).
Tox can now be used for testing all supported Python and Django versions. Use tox-travis to reduce the duplication of testing configuration. Travis will now use the tox configuration to build all environments. Easier to keep in sync.