Fix multi-policy related issues.
The "rule" and "expected_error_code" parameters of the rbac_rule_validation
decorator have been removed after a deprecation period, and this means
that any test that uses "rule" or "expected_error_code" parameters
will need to be changed to use "rules" and "expected_error_codes".
This is as par Patrole commit
https://review.openstack.org/#/c/595450/
Also, fixed tox pep8 issue as well as with a new .gitignore file.
diff --git a/test-requirements.txt b/test-requirements.txt
index 2757893..0f4012e 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,8 +1,5 @@
# The order of packages is significant, because pip processes them in the order
# of appearance. Changing the order has an impact on the overall integration
# process, which may cause wedges in the gate later.
-hacking>=0.12.0,<0.13 # Apache-2.0
-
-sphinx>=1.6.2 # BSD
-openstackdocstheme>=1.17.0 # Apache-2.0
-
+hacking>=1.1.0,<1.2.0 # Apache-2.0
+pylint