update TODOs
add basic comment submission in AlbumShow view
fix albums#show action to use #includes (avoid 10 billion queries when loading)
refactor upvoting/downvoting in AlbumsController, CommentsController; avoid second request when submitting new comment
it works. everything works. let's not talk about it any more than we have to.
refactor comment modal into partial; add reply button; resign self to second request after posting a comment
add simple comparators to Albums and Comments collections
stick comments in their own grid row/column so they have more room to spread out