Fixed a few ferret TF issues and a Jojo expansion snafu.

- Fixed ferret bad end warning to be bold like other TF bad end warnings.
- Fixed player.race() returning "fox-*" for ferrets if skin type isn't furry.
- Fixed a bad call to kGAMECLASS.silly() in the Jojo expansion (missing parens).
Merge pull request #337 from tmedwards/master

Fixed a few ferret TF issues and a Jojo expansion snafu.