Alpha 2 update

I don't really know how to number updates so we'll probably reach alpha 500 sooner or later.

Alpha 2

Added bucket upgrades, adding to the minimum value each bucket can have.

Gave upgrades "weights", Some upgrades are now more likely to appear than others.

Changed how the range of the bucket values are determined, reaching the goal should now be more difficult.

Fixed remaining drop count. Count is reset each round instead of just adding to the existing drops remaining.