New Features:

» Added ability to toggle spawner spawnable entity amount.
» Spawner now can be modified (spawner type, stack size, spawnable entities and charges)
» Fixed - spawned entities will now register as spawner entities

New Commands:

» /sm modify [type/stack/entities/charges] - to modify a target spawner (looking at)
» /sm spawners maximum - to configure spawnable entities
» /sm safety limit [value*] - to set spawner safety limit