HttpClient parameterization

[Rod Widdowson]

> I thought what we concluded was we'd probably live with it for now and incorporate this issue into the refactoring of the
HttpClient builders
> and other code, possibly connected to the work to upgrade that library. Probably a 4.0 thing.

That jibes with my memory too - now you say it.  It also explains why my notes were fragmentary.
 
> That was what I took away from it, but maybe I'm projecting.
>
> My issue was the multiple classes and the duplication, and Brent had mentioned maybe just collapsing that back into a single
builder class or
> injecting some kind of caching facet that would offload that, but that would be a 4.0 thing.

Thanks

R