Upgrading to std Futures and latest tokio

[tyranron]

Hi, there! Thank you for this crate 🙇

I'd like to use it extensively, but is it still maintained? The latest change was made at Aug 4 2018 and master depends on tokio-core, which is deprecated long ago.

How about upgrading to the latest tokio and refactoring with std Futures which will come in the nearest 1.36 Rust release? Would you mind on my elaboration on it?

[cksac]

Hi, I do plan to migrate to std Future later

[tyranron]

@cksac would you mind if I start the work in a fork+PR and you will review/improve/merge it later when you're ready to migrate to std Future?

[cksac]

@tyranron that will be great :)