ignoring .tox
adding test requirement: flake8
first pass: deps are easier to maintain.
loop on environments, once again, easier to maintain
Merge branch '6-travis-jobs' into 6-tox-ini-refined

Conflicts:
	tox.ini
test travis
Merge branch '6-tox-ini-refined' of github.com:novapost/django-esutils into 6-travis-tests

Conflicts:
	.gitignore