Print log when the server is starting up

Author: cpiper

u2f-ref-code/java/src/com/google/u2f/tools/httpserver/U2fHttpServer.java

@@ -112,6 +112,7 @@ public String generateSessionId(String accountName) {
 
       try {
         connection.connect(new InetSocketAddress("0.0.0.0", 8080));
+        System.out.println("Starting up the server at localhost:8080");
 
         synchronized (lock) {
           lock.wait();