added-yang-linter-and-resolved-all-error-produced-by it

Change-Id: Iba95a07bb1ed6230b9a900448bf294355a58285c
diff --git a/config-models/aether-3.x/files/yang/application.yang b/config-models/aether-3.x/files/yang/application.yang
index 2f1a4fc..fcc05e3 100755
--- a/config-models/aether-3.x/files/yang/application.yang
+++ b/config-models/aether-3.x/files/yang/application.yang
@@ -13,7 +13,7 @@
 
   organization "Open Networking Foundation.";
   contact "Scott Baker";
-  description 
+  description
     "An Aether Application is an application that UE devices may
      connect to. Includes a set of endpoints where services are
      provided.";
@@ -27,6 +27,7 @@
         type yg:yang-identifier {
             length 1..32;
         }
+    description "The typedef for application-id";
   }
 
   container application {
@@ -83,7 +84,8 @@
           type at:protocol;
           description
               "Name of this endpoint";
-        }                   
+        }
+        description "The list for endpoints";
       }
 
       leaf enterprise {
@@ -95,5 +97,5 @@
           "Link to enterprise that owns this Application. May be set to None if the application is global to all Enterprises.";
       }
     }
-  } 
+  }
 }