Missing "mypy" in tox envlist

[liborjelinek]

I'm not too much skilled in tox but it looks that the "envlist" under "[tox]" section misses the mypy environment. Without it it is never tested.

cookiecutter/{{cookiecutter.project_name}}/tox.ini

Line 3 in 7e511df

envlist = py{34,35,36,py},style

If you confirm it, I can save some of your time and fix it in simple PR.

[stephenfin]

Yes and no. The envlist lists the environments that run by default. You can still run the mypy environment manually using tox -e mypy. We could add this to the default environments, and I'll accept a PR that adds it, but it's not truly necessary