Stability release + a couple bug fixes & dialog corrections

This little update ensures that One Possible Future continues working on modern PCs, and also fixes a couple little bugs and mistakes:

• Sometimes, after doing Save & Quit, your saved game wouldn't appear on the title screen until you went off the title screen and back on again. Even though everything was fully saved, this was scary and bad. It has been fixed.
  
• Fixed dialog related to whether or not you promised Lori a drawing.
  
• The path to WP/602$ is no longer shown uselessly & confusingly early.
  
• On subsequent visits to WP/602$, the background music continues to play (instead of being replaced with the hum of machinery).
  
• Some dialog with York was poorly written, confusing some players. It has been changed.

That's it; have fun this Christmas! :)