V1.2 Upgrade'able Bills and Rounds!

Cash on the Nail is officially past 1.0! 
With update 1.2 you can now : 

- Progress through a series of 14 challenging rounds!

- Upgrade you Bills for even bigger $ combos!

- Track your current multipliers and bill values via a new dedicated window on the righ

- Track your current Rounds progress via another new window on the left

- The "pop up" animation for Dollar Bill's hit received a rework and is jucier than ever!