Rename and clean up MapleCharacter

src/main/java/client/command/commands/gm6/SupplyRateCouponCommand.java

@@ -19,7 +19,7 @@
 */
 package client.command.commands.gm6;
 
-import client.MapleCharacter;
+import client.Character;
 import client.MapleClient;
 import client.command.Command;
 import config.YamlConfig;
@@ -31,7 +31,7 @@ public class SupplyRateCouponCommand extends Command {
 
     @Override
     public void execute(MapleClient c, String[] params) {
-        MapleCharacter player = c.getPlayer();
+        Character player = c.getPlayer();
         if (params.length < 1) {
             player.dropMessage(5, "Syntax: !supplyratecoupon <yes|no>");
             return;