Update — bug fixes

- Fixed a trainer bug that was quietly draining your fighter's
stats. The trainer's fight-night bonus was being eaten up by
other fights on the card, so you'd lose a few points every
month instead of keeping the boost. This was the big one.

- Fixed fighter ages being off by a year. Some boxers were
entering the world a year older than their actual date of
birth. Ages now line up with birthdays.

- Added crash reporting so that if the game ever hits a blank
screen, it can now show what went wrong on the next launch —
please screenshot and send it in if you see one.

Thanks as always to everyone sending reports — the trainer and
age fixes both came straight from player screenshots.