Port akka-http to Scala.js

[Atry]

Though I will not expect running a HTTP server on Scala.js, some data structures from akka-http like Path and Uri are useful in Scala.js .

Another usage of akka-http.js is creating an in-memory mock server to handler fake HTTP requests (for testing purpose).

[andreaTP]

An Http server is totally possible if you run for example on Node, haven't looked in details how much akka-http is tighten to Jvm.
In this moment unfortunately I have few time, so PR are welcome! :-)

[LogicalTime]

I agree, thought I am guessing it should be separate like Akka-Http is? I also long for those Uri and Path classes.

[andreaTP]

I guess Uri and Path are easily portable...
Since here we target just akka core, yes Akka-http port should live in a separate repo I belive

[LogicalTime]

There is now Scala-uri library that is is cross built. They has taken most of the pressure off this issue for me.