Update versions.

[tomchristie]

• Update tests to include 1.8 (and ideally master, too).
• Update index page.
• Update docs pages.

[auvipy]

:+1:

[tomchristie]

@auvipy If you're feeling proactive then any pull requests for this would be most welcome! :smile:

[auvipy]

for the pointed tasks I have to update the tox.ini? run the tests localy with django 1.8 and update the docs to 1.8 right?

[tomchristie]

The tox.ini and the .travis.yml

[auvipy]

47