contrail-webui: enable ssl auth for openstack services

Fixes:
- determine default parameter for identity protocol.
- fix documentation.

Change-Id: I07a82064178e466c017cb18c64a405e683a5493c
Related-PROD: PROD-29221 (PROD:29221)
diff --git a/tests/pillar/single40.sls b/tests/pillar/single40.sls
index ae4f8b4..c064f37 100644
--- a/tests/pillar/single40.sls
+++ b/tests/pillar/single40.sls
@@ -151,6 +151,7 @@
     identity:
       engine: keystone
       version: '2.0'
+      protocol: http
       host: 127.0.0.1
       port: 35357
       user: admin