Nexal Backpacks

Fix enchantments, names, lore and other item data being lost from stored items after a restart; contents saved by earlier versions are restored and rewritten on first start, after backing up data.json Fix items put into the unused slots of smaller backpacks being deleted: slots past a backpack's capacity are now locked Fix a duplication exploit: only one player can have a backpack open at a time Fix a duplication exploit and item loss when a backpack was open while the server stopped Fix items collected by auto-pickup being deleted when the backpack was open Fix MySQL storage failing to save backpacks; existing tables get a larger contents column automatically Fix lost backpacks, recoveries and last access times not being saved with MySQL storage Improve performance: saving backpacks, export and import no longer cause lag, and auto-pickup saves in batches Fix backpacks failing to open on Spigot servers (the last Paper-only call left after 1.0.2) Fix /backpack admin not responding Add an admin GUI: /backpack admin opens a hub with a configuration screen and the lost backpacks; /backpack admin help lists the admin commands Export and import now include player notification preferences Move the text of the backpack, list and lost-backpack menus to messages.yml, restyled, with sounds for sorting, page turns and quick deposit Fix /backpack admin give and lost backpack recovery leaving the backpack with nobody when the inventory is full Fix number keys and the offhand key putting refused items or other backpacks into a backpack Quick Deposit no longer moves worn armor and the offhand item Opening a backpack no longer sends a chat message Explain why shift-click crafting of backpacks is blocked; crafters now produce working backpacks Mark dropped backpacks as lost only once they are actually destroyed, now including explosions and the void Fix a backpack in the offhand being used as its item, such as an Ender Backpack being thrown /backpack admin import now says which file is missing Add an optional custom-model-data setting per backpack type Messages missing from an older messages.yml now fall back to the defaults Remove the unused gui sound settings from config.yml; sounds are set in messages.yml Fix clicks on a backpack recipe that craft nothing creating empty backpack records Fix backpacks getting into other backpacks inside shulker boxes and bundles Save every change made in an open backpack right away, so a server crash cannot duplicate items Admin GUI: add a Backpack Types screen to give backpacks and change each type's slots, soulbound, auto-pickup default and recipe, plus Reload, Export and Import buttons Add /backpack notifications batch to turn combined pickup notifications on or off per player The auto-pickup toggle in the backpack menu shows red when off Backpack types with fewer than 1 slot in config.yml now get 1 instead of failing Fix the help menu not working on Spigot servers Data is saved safely: a crash, power cut or full disk while saving no longer leaves a broken data file