Update pep8-naming to 0.7.0

[pyup-bot]

This PR updates pep8-naming from 0.4.1 to 0.7.0.

Changelog

0.7.0

------------------

* Detect N806 in ``with ... as ...:`` statements.

* Detect N806 in multiple assignment statements, e.g., ``Foo, Bar =
unpacking``.

* Allow class names to be properly ignored.

* Remove spurious 'xxx' from error message

* Detect N807 within conditional statements.

0.6.1

------------------

* Fix N804 check for ``cls`` used in metaclass methods (See also
https://github.com/PyCQA/pep8-naming/issues/53)

0.6.0

------------------

* Separate check for ``__`` in function names to its own code: N807

* Consider all metaclass methods to be class methods

0.5.0

------------------

* Add configurable list of classmethod and staticmethod decorators

* Print the offending name as part of the error message

* Correct N804/N805 for __init_subclass__

Links

• PyPI: https://pypi.org/project/pep8-naming
• Changelog: https://pyup.io/changelogs/pep8-naming/
• Repo: https://github.com/PyCQA/pep8-naming