Add global first-join announce feature.

src/com/garbagemule/MobArena/ArenaImpl.java

@@ -559,7 +559,16 @@ public class ArenaImpl implements Arena
         if (event.isCancelled()) {
             return false;
         }
-        
+
+        // Announce globally (must happen before moving player)
+        if (settings.getBoolean("global-first-join-announce", false)) {
+            if (lobbyPlayers.isEmpty()) {
+                for (Player q : Bukkit.getOnlinePlayers()) {
+                    Messenger.tellPlayer(q, Msg.ARENA_JOIN_GLOBAL, configName());
+                }
+            }
+        }
+
         takeFee(p);
         storePlayerData(p, loc);
         removePotionEffects(p);

src/com/garbagemule/MobArena/Msg.java

@@ -7,6 +7,7 @@ public enum Msg
     ARENA_START("Let the slaughter begin!", "Arena started!", Material.REDSTONE_TORCH_ON),
     ARENA_END("Arena finished.", "Arena finished.", Material.REDSTONE_TORCH_OFF),
     ARENA_END_GLOBAL("Arena '%' finished! Type /ma j % to join a new game!"),
+    ARENA_JOIN_GLOBAL("Arena '%' is about to start! Type /ma j % to join!"),
     ARENA_DOES_NOT_EXIST("That arena does not exist. Type /ma arenas for a list.", "Can't find arena."),
     ARENA_LBOARD_NOT_FOUND("That arena does not have a leaderboard set up."),
     ARENA_AUTO_START("Arena will auto-start in % seconds."),