Fixed Shulker Nest loot issues and added new config options
The Shulker Nest structures now have loot tables.
New config options were also added, prevent-enderman-block-pickup (defaults to true) and shulker-spawn-attempts (defaults to 8)
prevent-enderman-block-pickup will cause Endermen to be unable to pick up blocks when enabled. This is useful for preventing Endermen from picking apart the Aether.
shulker-spawn-attempts controls how may times the plugin tries to spawn a Shulker in a Shulker Nest. Keep in mind that this is the
maximum that can be spawned. This means that in the case of the default value, 8, anywhere from zero to eight will be spawned.