Support for koa 2.0.0

[buzinas]

No description provided.

[nickserv]

Is this in progress? Either way, I'd be happy to help if I can figure it out.

[richenlin]

I promise it's already in progress. And welcome to help us

[nfantone]

I can take this, if you guys want. I've done it before with some other Koa packages (like koa-jwt). Let me know what you think. (cc. @doug-wade @nickmccurdy)

[nickserv]

Thanks! Do you want to tackle #30 with me first?

[nfantone]

Happy to do so :)

[nickserv]

I forgot that I started a branch for this a while ago, it might be useful as a starting point. Right now it's just upgrading to Koa 2.0.0 and using class syntax, there are still generator deprecation warnings we would need to fix.

https://github.com/koajs/koala/compare/use-koa-2

@nfantone Would you like to join our Gitter chat?

[doug-wade]

@jonathanong I'd like to publish this. Could you grant me permissions or do it yourself?