Adds pip flag --trusted-host to tox.ini to make CI builds work
Adds pip flag --trusted-host to tox.ini to make CI builds work

njl/pycon,njl/pycon,Diwahars/pycon,PyCon/pycon,PyCon/pycon,PyCon/pycon,Diwahars/pycon,Diwahars/pycon,Diwahars/pycon,njl/pycon,PyCon/pycon,njl/pycon