Reset progress and more

As reset progress cause many problems and bugs, we removed it for now. It will be back when we rework it completely so you can replay story mode with different tactics. So please wait for next update, we will try to add steam workshop for rooms sharing in it, rooms saves / loads and more.

Also some gameplay fixes in this update:
- monsters deal 12 damage now, not 20
- piranhas do 2 times more damage
- fixed bug with exploding jumpers
- deathray do more damage


We did not expect such popularity of our game, so thank you all for playing it! We will continue to support and update it.