Minor - rename LimboPlayer methods + code householding

- Rename *taskId methods to *task to reflect what they handle
- Remove usages of Wrapper where applicable
- Replace some uses of legacy Settings with NewSetting calls

src/main/java/fr/xephi/authme/command/executable/captcha/CaptchaCommand.java

@@ -7,7 +7,6 @@ import fr.xephi.authme.command.PlayerCommand;
 import fr.xephi.authme.output.MessageKey;
 import fr.xephi.authme.security.RandomString;
 import fr.xephi.authme.settings.properties.SecuritySettings;
-import fr.xephi.authme.util.Wrapper;
 import org.bukkit.entity.Player;
 
 import java.util.List;
@@ -18,9 +17,8 @@ public class CaptchaCommand extends PlayerCommand {
     public void runCommand(Player player, List<String> arguments, CommandService commandService) {
         final String playerNameLowerCase = player.getName().toLowerCase();
         final String captcha = arguments.get(0);
-        Wrapper wrapper = Wrapper.getInstance();
-        final AuthMe plugin = wrapper.getAuthMe();
-        PlayerCache playerCache = wrapper.getPlayerCache();
+        final AuthMe plugin = commandService.getAuthMe();
+        PlayerCache playerCache = PlayerCache.getInstance();
 
         // Command logic
         if (playerCache.isAuthenticated(playerNameLowerCase)) {