add example file with some event listeners

example.js

@@ -0,0 +1,24 @@
+var sys = require('sys'),
+    api = require('./lib/api').create(),
+   PORT = 3456
+
+api
+  .addListener('request', function(req, status) {
+    sys.puts(req.method + " " + req.url + ' => ' + status)
+  })
+
+  .addListener('locate', function(user, location) {
+    sys.puts("LOCATE " + user + ' => ' + location)
+  })
+
+  .addListener('list', function(location, users) {
+    sys.puts("LIST " + location + " => " + users.join(", "))
+  })
+
+  .addListener('track', function(user, location) {
+    sys.puts("TRACK " + user + " => " + location)
+  })
+
+api.listen(PORT);
+
+sys.puts("Starting Where's Waldo server on port " + PORT)