added denyjoinfrom permission

src/main/java/us/ajg0702/queue/Main.java

@@ -69,6 +69,7 @@ public class Main extends Plugin implements Listener {
 		d.put("errors.player-only", "&cThis command can only be executed as a player!");
 		d.put("errors.already-connected", "&cYou are already connected to this server!");
 		d.put("errors.cant-join-paused", "&cYou cannot join the queue for {SERVER} because it is paused.");
+		d.put("errors.deny-joining-from-server", "&cYou are not allowed to join queues from this server!");
 		
 		d.put("commands.leave-queue", "&aYou left the queue for {SERVER}!");
 		d.put("commands.reload", "&aConfig and messages reloaded successfully!");

src/main/java/us/ajg0702/queue/Manager.java

@@ -442,6 +442,11 @@ public class Manager {
 			return;
 		}
 		
+		if(p.hasPermission("ajqueue.denyjoinfron."+p.getServer().getInfo().getName())) {
+			p.sendMessage(msgs.getBC("errors.deny-joining-from-server"));
+			return;
+		}
+		
 		if(server.isPaused() && pl.config.getBoolean("prevent-joining-paused")) {
 			p.sendMessage(msgs.getBC("errors.cant-join-paused", "SERVER:"+pl.aliases.getAlias(server.getName())));
 			return;