[stdlib-sig] http package proposal

[Antoine]

> It's actually more about convention than actual use :-)
>
> If we name the module http.cookies, we'd also have to
> name the server module http.servers, since there are
> multiple server implementations included.

http.cookies is about managing cookies, i.e. you often manage several
cookies at a time. On the other hand you seldom launch several HTTP
servers in the same program. The difference looks natural to me.