Add togetherjs for collaboration

[hzoo]

From jsfiddle

Ref #166

[fkling]

But does that just work? What about text input? Does that sync? I could imagine this is a bit more tricky to get working correctly with React.

[hzoo]

Will have to check if jsfiddle did anything special to configure it

I'm going to test it now, not sure - also you should join babel slack if you haven't already 😄 (would love to have you)

[fkling]

So many chat systems :P I'll check it out!

[hzoo]

http://henryzoo.com/esprima_ast_explorer/#/MoBMMPjunn

for my built one - there's a button at the bottom

[hzoo]

Some docs https://togetherjs.com/docs/

In action

looks like change parser settings isn't working atm