Add hacking checks to watcher

The hacking checks enforce during the pep8 run functional validations of
the code to ensure deeper filters and code consistency.  This change set
adds the hacking checks to the wathcer project.  These checks were
seeded from the neutron project, which had a good set of base defaults.

This change set also updates the watcher project to be compliant with
these new hacking checks.

Change-Id: I6f4566d384a7400bddf228aa127a53e6ecc82c2e

watcher_tempest_plugin/services/infra_optim/v1/json/client.py

@@ -14,7 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import json
+from oslo_serialization import jsonutils
 import uuid
 
 from watcher_tempest_plugin.services.infra_optim import base
@@ -27,11 +27,11 @@ class InfraOptimClientJSON(base.BaseInfraOptimClient):
 
     def serialize(self, object_dict):
         """Serialize an Watcher object."""
-        return json.dumps(object_dict)
+        return jsonutils.dumps(object_dict)
 
     def deserialize(self, object_str):
         """Deserialize an Watcher object."""
-        return json.loads(object_str.decode('utf-8'))
+        return jsonutils.loads(object_str.decode('utf-8'))
 
     # ### AUDIT TEMPLATES ### #
 
@@ -201,7 +201,7 @@ class InfraOptimClientJSON(base.BaseInfraOptimClient):
         :param audit_uuid: The unique identifier of the related Audit
         """
 
-        _, action_plans = self.list_action_plans(audit_uuid=audit_uuid)
+        action_plans = self.list_action_plans(audit_uuid=audit_uuid)[1]
 
         for action_plan in action_plans:
             self.delete_action_plan(action_plan['uuid'])