Hotfix for New Depths update

Moose Miners

Take control of a mining operation run by moose. They mine and sell the gems. You need to decide where to spend the profits. Hire more miners and upgrade their gear. Buy new rails and minecarts to get deeper into the mine. The deeper you get the more valuable gems you will find.

Fixed an issue where buying new moose on max bought more moose than you can afford which resulted in negative money