Added timestamp support to Update Tiles and Chat.

New web config to handle for jsonfile method
Modified webclient to handle timestamps to prevent duplication.
Removed duplicate code in JsonTimerTask.java

src/main/java/org/dynmap/Client.java

@@ -27,19 +27,23 @@ public class Client {
         public String type = "chat";
         public String playerName;
         public String message;
+		public long timestamp;
 
-        public ChatMessage(String playerName, String message) {
+        public ChatMessage(String playerName, String message, long timestamp) {
             this.playerName = playerName;
             this.message = message;
+			this.timestamp = timestamp;
         }
     }
 
     public static class Tile {
         public String type = "tile";
         public String name;
+		public long timestamp;
 
-        public Tile(String name) {
+        public Tile(String name, long timestamp) {
             this.name = name;
+			this.timestamp = timestamp;
         }
     }
 }

src/main/java/org/dynmap/DynmapPlayerListener.java

@@ -67,6 +67,6 @@ public class DynmapPlayerListener extends PlayerListener {
      *            Relevant event details
      */
     public void onPlayerChat(PlayerChatEvent event) {
-        mgr.pushUpdate(new Client.ChatMessage(event.getPlayer().getName(), event.getMessage()));
+        mgr.pushUpdate(new Client.ChatMessage(event.getPlayer().getName(), event.getMessage(), System.currentTimeMillis()));
     }
 }

src/main/java/org/dynmap/JsonTimerTask.java

@@ -37,8 +37,6 @@ class JsonTimerTask extends TimerTask
 		long current = System.currentTimeMillis();
 
 		Client.Update update = new Client.Update();
-		update.timestamp = current;
-		update.servertime = world.getTime();
 
         update.timestamp = current;
         update.servertime = world.getTime() % 24000;

src/main/java/org/dynmap/MapManager.java

@@ -159,7 +159,7 @@ public class MapManager {
     
     public boolean render(MapTile tile) {
         boolean result = tile.getMap().render(tile, getTileFile(tile));
-        pushUpdate(tile.getWorld(), new Client.Tile(tile.getFilename()));
+        pushUpdate(tile.getWorld(), new Client.Tile(tile.getFilename(), System.currentTimeMillis()));
         return result;
     }