Beta 0.6.2

Hi Everyone,

Release 0.6.2 is a small one but contains a couple of important bug fixes and improvements:

• Fixed a crashing error when multiple employees quit at once (note: please treat your employees well).
• Upgrade cancellations now show a confirmation prompt.
• Fixed a few subtle bugs around feature cancellation / deprecation.

I have also observed some automated bug reports which I haven't been able to reproduce. So I have added some additional logging to hopefully gather more information if they occur again out in the wild. If you run into issues when playing the game, please do report them!