CurlPost - allow configuration passed to constructor

[paragonie-scott]

Let's say you wanted to install ReCAPTCHA on, e.g. a Tor Hidden Service, and you didn't want to leak your hidden service's IP address. You could do this:

$curl = new CurlPost(null, [
    CURLOPT_PROXY => 'http://127.0.0.1:9050/',
    CURLOPT_PROXYTYPE => CURLPROXY_SOCKS5
]);

And now your reCAPTCHA queries will be proxied over the Tor network.

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[paragonie-scott]

I signed it. (Under Paragon Initiative Enterprises.)

[paragonie-scott]

OK, I'm not waiting forever for this to get reviewed/merged.

Time to fork.

[rowan-m]

@paragonie-scott just been coming back to things after a 1.2 release. I've made a whole bunch of updates, so if you fancied resubmitting something like a ProxyCurl request method, I'm happy to review.