GUI -- store ref to node/link selection in backing data.
- tweaking force-layout parameters; now host-to-host intent path is highlighted.
- injectTestEvent() now uses recursion to look for appropriate json files.
- implemented updateHost() event.
- some refactoring cleanup in topo2.js

Change-Id: I888f05032d3c9df6470bd4d2f399f61efb9dbd46
diff --git a/web/gui/src/main/webapp/json/ev/simple/ev_4_onos.json b/web/gui/src/main/webapp/json/ev/simple/ev_4_onos.json
index 51fdb8c..993570b 100644
--- a/web/gui/src/main/webapp/json/ev/simple/ev_4_onos.json
+++ b/web/gui/src/main/webapp/json/ev/simple/ev_4_onos.json
@@ -1,16 +1,17 @@
 {
   "event": "addHost",
   "payload": {
-    "id": "00:00:00:00:00:03/-1",
+    "id": "0E:2A:69:30:13:86/-1",
+    "ingress": "0E:2A:69:30:13:86/-1/0-of:0000ffffffff0003/2",
+    "egress": "of:0000ffffffff0003/2-0E:2A:69:30:13:86/-1/0",
     "cp": {
       "device": "of:0000ffffffff0003",
-      "port": 1
+      "port": 2
     },
     "labels": [
-      "10.0.0.3",
-      "00:00:00:00:00:03"
+      "unknown",
+      "0E:2A:69:30:13:86"
     ],
-    "metaUi": {
-    }
+    "props": {}
   }
 }