I can never remember what that `TRUE' means in the game structure

I can never remember what that `TRUE' means in the game structure
definitions, so let's move it so that it's just next to the
functions it relates to. This also opens the way for me to add more
booleans next to other functions without getting confused as to
which is which.

git-svn-id: svn://svn.tartarus.org/sgt/puzzles@5723 cda61777-01e9-0310-a592-d414129be87e