[+] Added drop item and drop xp option to anti mob farm for custom cause of death. (For custom entity killer plugins.)
[+] Added separate options for xp and item drop for mobs not killed by the player to the anti mob farm.
[/] Spawner data settings were separated from "config.yml" and moved to "spawners.yml".
[/] The problem of not being able to add a new spawner in the spawner data settings has been resolved.