Enable H302 rule everywhere

This patch enables the use of the H302 hacking rule everywhere. With
one exception of the client class imports in clients.py, this
is intentionally ignored.

Change-Id: Ia0ef5e44a411ccd6e6c12f9cf64427a96e021b47
diff --git a/tempest/api/orchestration/stacks/test_stacks.py b/tempest/api/orchestration/stacks/test_stacks.py
index 867995c..5b45d82 100644
--- a/tempest/api/orchestration/stacks/test_stacks.py
+++ b/tempest/api/orchestration/stacks/test_stacks.py
@@ -13,7 +13,7 @@
 from tempest.api.orchestration import base
 from tempest.common.utils import data_utils
 from tempest.openstack.common import log as logging
-from tempest.test import attr
+from tempest import test
 
 
 LOG = logging.getLogger(__name__)
@@ -26,13 +26,13 @@
     def setUpClass(cls):
         super(StacksTestJSON, cls).setUpClass()
 
-    @attr(type='smoke')
+    @test.attr(type='smoke')
     def test_stack_list_responds(self):
         resp, stacks = self.client.list_stacks()
         self.assertEqual('200', resp['status'])
         self.assertIsInstance(stacks, list)
 
-    @attr(type='smoke')
+    @test.attr(type='smoke')
     def test_stack_crud_no_resources(self):
         stack_name = data_utils.rand_name('heat')