Edited /gtfo

Made it so the reasons will show up in chat if they choose to have a reason and shows there name on ban
So... You want it to say this if i did /gtfo robo:

[Ban Screen]:  GTFO Wild1145 for being nub   ???

It should have been "(" + player.getName() + ")"+ not "(" + sender.getName() + ")"+

If you wanted to use "(" + sender.getName() + ")"+ it should have been 

player.kickPlayer(ChatColor.RED + "GTFO" + (reason != null ? ("\nReason: " + ChatColor.YELLOW + reason) : "") + "by" + sender.getName());  or something like that (I just put that together in the comments so probably isnt 100% correct but you get the idea)