Support for section AVAILABLE_REGIONS added
This section generate dropdown menu in horizon and
user can switch between regions.

Change-Id: I76c19e610dfae6347339468496c79a9840b01ec7
diff --git a/tests/pillar/single.sls b/tests/pillar/single.sls
index d06d73d..0dbc3cb 100644
--- a/tests/pillar/single.sls
+++ b/tests/pillar/single.sls
@@ -25,6 +25,11 @@
       encryption: ssl
       api_version: 2
       endpoint_type: publicURL
+    regions:
+      - name: cluster1
+        address: http://cluster1.example.com:5000/v2.0
+      - name: cluster2
+        address: http://cluster2.example.com:5000/v2.0
     websso:
       login_url: "WEBROOT + 'auth/login/'"
       logout_url: "WEBROOT + 'auth/logout/'"