Made tox -e pep8 passed. Also made git review work

Two elements to this: make the existing code pass, and skip the
api_strawman/ directory.

Change-Id: Ic85067bdd63337e135f054c9a28e46683c46656c

.gitreview

@@ -0,0 +1,4 @@
+[gerrit]
+host=review.openstack.org
+port=29418
+project=stackforge/python-openstacksdk.git

openstack/tests/test_openstack.py

@@ -23,6 +23,4 @@ from openstack.tests import base
 
 
 class TestOpenstack(base.TestCase):
-
-    def test_something(self):
     pass

tox.ini

@@ -27,8 +27,6 @@ commands = python setup.py testr --coverage --testr-args='{posargs}'
 [flake8]
 # H803 skipped on purpose per list discussion.
 # E123, E125 skipped as they are invalid PEP-8.
-
 show-source = True
 ignore = E123,E125,H803
-builtins = _
-exclude=.venv,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,build
+exclude=api_strawman/,.venv,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,build