Both @tlovett1 and @mattheu are looking at working on this; feel free to split tasks between yourselves, and happy to split into a separate repo if it helps.
@tlovett1 @mattheu, is there a task list specific to the JS client? I'd like to pitch in, if I can
Whoops, totally forgot to mention, split out into a separate repo: https://github.com/WP-API/client-js
Include JS from github.io - see #179
Include new client JS from github.io - see #179
Fixed in #240.