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/_capture/rx/addHost_ex1.json b/web/gui/src/main/webapp/json/ev/_capture/rx/addHost_ex1.json
new file mode 100644
index 0000000..a97d15a
--- /dev/null
+++ b/web/gui/src/main/webapp/json/ev/_capture/rx/addHost_ex1.json
@@ -0,0 +1,17 @@
+{
+  "event": "addHost",
+  "payload": {
+    "id": "6A:40:24:F7:9C:2C/-1",
+    "ingress": "6A:40:24:F7:9C:2C/-1/0-of:0000000000000003/2",
+    "egress": "of:0000000000000003/2-6A:40:24:F7:9C:2C/-1/0",
+    "cp": {
+      "device": "of:0000000000000003",
+      "port": 2
+    },
+    "labels": [
+      "unknown",
+      "6A:40:24:F7:9C:2C"
+    ],
+    "props": {}
+  }
+}