Upgrade to latest flake8 (#599)
Upgrade to latest flake8 (#599)

* Pin flake8 to latest version 3.0.4
* Drop flake8-respect-noqa as not needed anymore (closes #585)

etalab/udata,davidbgk/udata,opendatateam/udata,davidbgk/udata,jphnoel/udata,jphnoel/udata,opendatateam/udata,davidbgk/udata,jphnoel/udata,etalab/udata,etalab/udata,opendatateam/udata