Fixed discovery bug, implemented server list, added server parameters

- Resolved DNS bug by updating to a newer version of JmDNS
- Added server list, this is populated with new servers as they are discovered
- Added map name and spaces remaining to server advertisement

Tags: #story[1247]

src/main/java/seng302/gameServer/ServerDescription.java

@@ -0,0 +1,39 @@
+package seng302.gameServer;
+
+public class ServerDescription {
+    private String address;
+    private Integer portNum;
+
+    private String serverName;
+    private String mapName;
+    private Integer spacesLeft;
+
+    public ServerDescription(String serverName, String mapName, Integer spacesLeft, String address, Integer portNum){
+        this.serverName = serverName;
+        this.mapName = mapName;
+        this.spacesLeft = spacesLeft;
+        this.address = address;
+        this.portNum = portNum;
+    }
+
+
+    public String getName() {
+        return serverName;
+    }
+
+    public String getMapName() {
+        return mapName;
+    }
+
+    public Integer portNumber() {
+        return portNum;
+    }
+
+    public String getAddress(){
+        return address;
+    }
+
+    public Integer spacesLeft() {
+        return spacesLeft;
+    }
+}