Compare feature with new chromote

[cderv]

https://github.com/rstudio/chromote

See at what point it work the same.
See what could benefit to one or the other.

Dig a bit into the synchronous / asynchronous part where later and promises have been modified for

[hrbrmstr]

I'll help with this (can't commit to time-frame just now) but I really want to do this.

i've just archived {decapitated} b/c I'd rather put any further effort into helping this package grow