GUI -- Added updateDevice event handling.
 - Display offline devices as grey.
 - Tracing web socket messages (for now, in console; in future, to trace view).
 - Captured sample events for use with test scenarios - both from and to the server.
 - Added description to scenario file.

Change-Id: I7825b32d63496ebea2ab5789519fb0c6af6c5257
diff --git a/web/gui/src/main/webapp/json/ev/simple/ev_3_onos.json b/web/gui/src/main/webapp/json/ev/simple/ev_3_onos.json
index ac521c4..73013a4 100644
--- a/web/gui/src/main/webapp/json/ev/simple/ev_3_onos.json
+++ b/web/gui/src/main/webapp/json/ev/simple/ev_3_onos.json
@@ -1,15 +1,18 @@
 {
-  "event": "addLink",
+  "event": "updateDevice",
   "payload": {
-    "id": "of:0000ffffffff0003/21-of:0000ffffffff0008/20",
-    "type": "direct",
-    "linkWidth": 2,
-    "src": "of:0000ffffffff0003",
-    "srcPort": "21",
-    "dst": "of:0000ffffffff0008",
-    "dstPort": "20",
-    "props" : {
-      "BW": "70 G"
+    "id": "of:0000ffffffff0008",
+    "type": "switch",
+    "online": true,
+    "labels": [
+      "0000ffffffff0008",
+      "FF:FF:FF:FF:00:08",
+      "sw-8-yo",
+      ""
+    ],
+    "metaUi": {
+      "x": 400,
+      "y": 280
     }
   }
 }