Move to the python-saharaclient

Now we can call sahara cli command instead savanna old one.

Change-Id: I063c02eb2dac300140eed4f1ccff7eb58621bcaa

requirements.txt

@@ -13,7 +13,7 @@ python-novaclient>=2.17.0
 python-neutronclient>=2.3.4,<3
 python-cinderclient>=1.0.6
 python-heatclient>=0.2.3
-python-savannaclient>=0.5.0
+python-saharaclient>=0.6.0
 python-swiftclient>=1.6
 testresources>=0.2.4
 keyring>=1.6.1,<2.0,>=2.1

tempest/cli/__init__.py

@@ -93,8 +93,7 @@ class ClientTestBase(tempest.test.BaseTestCase):
         """Executes sahara command for the given action."""
         flags += ' --endpoint-type %s' % CONF.data_processing.endpoint_type
         return self.cmd_with_auth(
-            # TODO (slukjanov): replace with sahara when new client released
-            'savanna', action, flags, params, admin, fail_ok)
+            'sahara', action, flags, params, admin, fail_ok)
 
     def cmd_with_auth(self, cmd, action, flags='', params='',
                       admin=True, fail_ok=False):