git-ff now omits the slow stat by default
git-whats learns --key to say which key to set; 'what' is the default

This way you can use git-whats to record more tha none piece of
information per branch.  For example, I intent to use
  git-whats --key=unf --set=1234
to record the Unfuddle ticket number pertaining to the current branch.

Also, --unset is now a synonym for --clear.