Patch with bug fixes 0.2.1

- Friends can no longer have more than 100 friendship levels;
- More readable rate display in the "2 Courses" menu;
- Reduced the required reputation level for unlocking short trades;
- Allows you to delete save files;
- Fixed a bug that caused the chart to not update on days when a player was working part-time;
- Fixed a bug with the game crashing when investing in Future Tech;
- Fixed a bug that caused mailstones for friends to be counted incorrectly;
- Fixed a bug that could cause the game to crash after certain events;
- Fixed a bug that prevented you from participating in a shareholder meeting in the hospital.