Combat update

Major update focused on combat, balance and variety and featuring:

Generation changes

Goldmines will now spawn more frequently in groups, rocks follow certain patterns etc.

Enemy rebalance

Enemies are now less tanky and more fun to deal with, with many stats changed and AI tweaked.

Added a boss

You may fight him every now and then after going far enough from the riverline.

Other changes

Sounds, initial player stats and more...

Have fun and stay safe