introduce cord-service-volt.yang and cord-service-vsg.yang. complete re-rendering of the underyling service/tenancy associations. need to review further with team.
diff --git a/schema/cord-subscriber.yang b/schema/cord-subscriber.yang
index 7fa098e..86fa0e8 100644
--- a/schema/cord-subscriber.yang
+++ b/schema/cord-subscriber.yang
@@ -1,5 +1,4 @@
 module cord-subscriber {
-  
   namespace "urn:onlab:cord:subscriber";
   prefix csub;
   yang-version 1.1;
@@ -13,7 +12,7 @@
   
   description
    "This module contains CORD Subscriber model representing its
-    relationship to features, services, and devices.
+    relationship to features and services.
 
     Copyright (c) 2016 ON.LAB and the persons identified as authors of
     the code.  All rights reserved.