added listener that the helmet is unremovable by clicking in enabled
worlds
added setHelmet on respawnAfterDeath
added setHelmet on /spawn
renamed tc to sc to remove conflict with towny
added sc to plugin.yml (fix)
added warning on SetSpawn if world is not enabled
added clear command to set the config.yml and hashmaps to null
added several comments
added /shad addworld <world> which allows you to add a world to enabled
worlds
added /shad remworld <world> which allows you to remove a world from
enabled worlds