Credentials Configuration changes

* Credentials are moved to the identity section
* If the compute admin user defined in the compute-admin section it takes precedence
* The region just defined in the identity section

Change-Id: I1241116ce9312c90656a78235a4a91dd31460761
diff --git a/stress/tools/nova_status.py b/stress/tools/nova_status.py
index f9bc707..ee20282 100755
--- a/stress/tools/nova_status.py
+++ b/stress/tools/nova_status.py
@@ -21,12 +21,11 @@
 
 # get the environment variables for credentials
 identity = tempest.config.TempestConfig().identity
-compute = tempest.config.TempestConfig().compute
-print compute.username, compute.password,\
-    compute.tenant_name, identity.uri
+print identity.username, identity.password,\
+    identity.tenant_name, identity.uri
 
-nt = client.Client(compute.username, compute.password,
-                   compute.tenant_name, identity.uri)
+nt = client.Client(identity.username, identity.password,
+                   identity.tenant_name, identity.uri)
 
 flavor_list = nt.flavors.list()
 server_list = nt.servers.list()