0.6.3

Scythe and Drill artifacts now reveal cells instead of removing them;Decaying ground now removes 10% of board cells instead of 15%;Gambler class is now unlocked with 8 shop rerolls instead of 10;added a "None" option to unbind panning from the mouse buttons;added a dedicated, rebindable button to start panning;fixed prompts showing generic icons instead of the connected controller ones.