New branch

I have written the 'Persuasion' branch, with three different achievements.  That brings the number of achievements up to 12.  Getting them is not necessary; it's just a fun little extra for people who like to collect them.  I'm a bit of a completionist myself.

I could always make a separate game without the achievements system?  But I'm going to complete the full thing with the achievements first, and then see about making a non-achievements version if that's requested.