Change demo to enable *four* simultaneous echo server connections at once\!

git-svn-id: svn+ssh://oldsvn/home/mlalondesvn/svn/cral@124 3ee9b42a-b53c-0410-a25e-f0b6218d5d5b

branches/follower/wiz810mj/src/demo/WizDemo4/WizDemo4.pde

@@ -537,12 +537,13 @@ void setup () {
   conn.close();
 #endif
 
-  EchoServer server = EchoServer(7);
-  EchoServer server1 = EchoServer(8);
+  // This uses the 1-argument constructor of EchoServer and supplies it with 7 for each instance.
+  EchoServer servers[MAX_SOCK_NUM] = {7, 7, 7, 7}; // This will break if MAX_SOCK_NUM changes.
   
   while (1) {
-    server.next();
-    server1.next(); 
+    for (int i=0; i<MAX_SOCK_NUM; i++) {
+      servers[i].next();
+    }
   }