It's been five years since I created my Unix password store, encypted with my GPG key pair
password-store. That key expired and now I need to update my database to a new master key.
Now is also a good time to clear out the git history. My key has not (to my knowledge) been compromised, so I don't need to remove all instances of passwords encrypted with the old key, but it will be nice to clear out the old history.