Update v0.0.11: Minor bug fixes, better sim until change of possession

This patch is really small, and mainly fixes two bugs that would prevent advancing weeks, as well as improving the sim until change of possession.

Full list of changes:

• Made sim until 'Next Change Of Possession' better, so it stops on kickoffs and when OT starts/flips
• Fix bug where retiring coaches could throw an error
• Fix bug where game wouldn't advance if no freshmen existed for a position in a conference

Thanks for playing!