re-implemented existing functionality in UI

- Correct player count is shown in server list
- Servers now advertise their capacity and number of players connected
- Players can click join on the servers in the server list
- Direct connect works
- Can set max players / server name in host dialog
- Server starts correctly when host clicked
- Implemented boat customization
- Implemented 'begin race button', and disabled it for players that aren't hosts
- Added countdown timer in lobby
- Fixed bug where app wouldn't close

Tags: #story[1245]

src/main/java/seng302/visualiser/ClientToServerThread.java

@@ -359,7 +359,7 @@ public class ClientToServerThread implements Runnable {
         }
     }
 
-    int getClientId () {
+    public int getClientId () {
         return clientId;
     }
 }