[NPermissions] Initial implementation of per-World permissions. Work in progress. Mostly implement #186
[NPermissions] Add ability to disable per-world permissions (default value = disabled). Ping #186
[NEnchantingEgg] Add Arboricide enchantment
[NEnchantingEgg] Prevent losing items if using an Altar at the end of the day. Fix #190
[NTheEndAgain] Enhance chunk protection system. Add #151