Bukkit

- Prevents players from deleting custom items that are used in replacement conditions of other custom items

- Fixes a bug that made it impossible to choose the alias of custom wands

- Fixes a bug that would reset the condition operator each time the user starts editing the replacement conditions

- Fixes a bug that would redirect the user to the wrong menu when loading a texture while editing a custom crossbow

- Adds the e shortcut for quickly resetting a shaped recipe ingredient back to Empty