patch notes:

- initial upgrades/talents system, you get 2 points per boss kill and you can spend them in "pause" phase,  upgrades are not balanced:) and need some testing, ideas etc
- added 3 damage types system: piercing, explosions, magic and resistances to those damage types  for enemies and allies, they are almost not used right now, but will be in the future
- increased hp of cannons
- added 3rd boss on wave nr 50, not balanced at all

bug fixes:
- enemies with rockets shot on the 2nd floor, if there was no cannons on the 1st
- $ maker don't stop on pause phase
- $ maker not making money... sorry
- enemies walking above the floor