ishmael573

I've been running this branch for a little while. It seems okay for now, but I've spotted few issues within the code. Suggestions above are what I've found. Also, `bemani/frontend/static/iidx-options.js`...

Rebased and force-pushed. I've also added game options for 28. Most of the options are filled, but `frame` and `bgm` are missing. Some are just copy and paste from previous...

Rebased and force-pushed again. This time, all the Black format changes made difficult to keep original two commits, so I've squashed few commits into one. Plus, HEROIC VERSE options are...