Prevent players from tabcomplete plugin command

[eUipKh]

This change would prevent sending the tabcomplete-command to players without the antibot.admin permission:

This line to this: super("antibot", "antibot.admin", "ab");

[linsaftw]

How do you allow non-admins to use antibot then? There are commands that you dont need antibot.admin to use but antibot.notifications.