Move session and fixtures to keystoneauth1

in an effort to start consuming keystoneauth1, we can move our
sesssion and fixture code over to use keystoneauth1 instead of
keystoneclient.

Change-Id: Ibcbd588ce2e3d864f87ff1eb6e1c3c071a1e06f6

openstackclient/tests/api/fakes.py

@@ -15,7 +15,7 @@
 
 from requests_mock.contrib import fixture
 
-from keystoneclient import session
+from keystoneauth1 import session
 from openstackclient.tests import utils
 
 

openstackclient/tests/fakes.py

@@ -17,7 +17,7 @@ import json
 import six
 import sys
 
-from keystoneclient import fixture
+from keystoneauth1 import fixture
 import requests
 
 

requirements.txt

@@ -6,6 +6,7 @@ six>=1.9.0
 
 Babel>=1.3
 cliff>=1.14.0 # Apache-2.0
+keystoneauth1>=1.0.0
 os-client-config!=1.6.2,>=1.4.0
 oslo.config>=2.3.0 # Apache-2.0
 oslo.i18n>=1.5.0 # Apache-2.0