Updated version of the Fanfare gamification add-on

I’ve modified the Fanfare add-on to work on recent Anki versions. The basic features work, but some may need further changes to work, as my changes were minimal. The updated version can be downloaded from here: Release Anki Fanfare v0.2.0 · abdnh/anki-fanfare · GitHub

I may work further on the add-on in the future (maybe removing Anki 2.0 support altogether to simplify the code).