Fixed a defect in client/server interaction when creating host intent.

Change-Id: I09a8e12e5ff78349b7d57b492a018642ff5e7bad
diff --git a/web/gui/src/main/webapp/topo2.js b/web/gui/src/main/webapp/topo2.js
index a2dfbea..f709aa7 100644
--- a/web/gui/src/main/webapp/topo2.js
+++ b/web/gui/src/main/webapp/topo2.js
@@ -787,7 +787,8 @@
     function addIntentAction() {
         sendMessage('addHostIntent', {
             one: getSelId(0),
-            two: getSelId(1)
+            two: getSelId(1),
+            ids: [ getSelId(0), getSelId(1) ]
         });
     }