alpha-0.6.1 release

alpha-0.6.1

Fixes for several bugs affecting late stage game play:

* Game was crashing when attempting to update state for persons who have died
* Unintentional indeterministic behavior in several routines
* Failed to interrupt conversations still continuing at the end of the day, resulting in invalid game state in the next day of game time
* scold_about_clothing_routine crashing if person is wearing offending clothing other than pants
* crashes related to changing clothing
* crashes related to missing gerunds for activities (e.g. writing)