Removed huge sections of the code and rewrote the rest. The code now depends on one other plugin to have full functionality. Download the plugin using the link in the spigot resource.
Skeletons will be stripped of their bows (or anything in their hands for that matter), and creeper spawning is disabled. Serveral other small tweaks included, but nothing more game changing.
Zombie block breaking has been changed a bit hopefully to allow zombies to break blocks directly in front of them, named zombies shouldnt despawn or get deleted, for compatibility with my player zombies plugin.
you should now be able to choose what blocks zombies cant break. Also zombies shouldnt break blocks instantly now - also by the way block breaking speed is calculated based on blast resistance.