Ver. 1.024 - Performance and stability.

It is time to work on stability!

• Late game performance improved.

• Made saving game more safe, added a backup system.

• Improved stability of saving and RAM requirements during saving.

• Huge logs with lots of errors -- fixed.

• Cloud saves now exclude log files.

• Fixed a couple of performance issues.

• Tweaked a day length a little bit.

• Fixed some bugs in Chinese, added missing translation in Korean.