Modified HTTP API

[Colin McCormack]

Hi All,

After discussions with dkf and evilotto, I've modified the HTTP (Client)
API.

It's a minor difference - instead of [HTTP new] and [HTTP create] use
[HTTP run] and [HTTP runas] respectively. It's something to do with
good OO form, but purely cosmetic from the user's POV.

I've also modified ReCAPTCHA and OAuth domains to reflect this change.

Colin.