6.0.0-rc.6

Fixed

• Fix /box withdraw not replying when the amount is not a valid number.
• Fix /boxadmin infinity notifying the sender instead of the target player.
• Fix the /boxadmin resetall message showing <player> instead of the player name.
• Fix Box Stick replenishing crossbows when firing a loaded firework rocket.
• Fix crafting recipes with empty slots, such as minecarts and scaffolding, not being imported.