Rainbow Backpack: possible update

[GM-Pandora]

Thank you for your input everyone.

I've decided to only reopen the lottery with a new goal of 5 Billions, while keeping the lottery chance the same as before.

Fairy auction backpack exchange may still happen, it's currently under consideration, perhaps with a different amount of backpacks required.

@Aaron: the Poring leader will see about hiring a kafra and healer, and perhaps also a banker and pvp girl later on.