Implement browser compatibility

Hello!

I'm coming from the direction of testing y.js for a web-based shared document editor. However, I started looking into your architecture for secure-scuttlebutt, and I really like what I've found so far.

I was curious, is there a browser implementation available or planned for this version of ssb? I ran across dominictarr/localstorage-scuttlebutt along with dominictarr/r-edit, but I'd hate to forego the latest end-to-end security architecture you've been working on lately. Is it possible to run this version of the database in the browser?