Update version 0.8.5 with some small adjustments and new things.

• The Boss now makes idle sounds every now and then,
• Improved shovel response when looking at boiler,
• Increased machine breaking chance in tutorial day,
• Machine malfunction smoke effect is more obvious now,
• Wrench now only does the repair animation when a machine is actually broken,
• Updated the instructions board to be more understandable,
• Updated controls text to be more understandable in main menu and pause options.

Let me know what you think :)