added proxy

[fty4]

if behind a proxy

[evert]

Honestly I think it's almost just as easy to just use $this->addCurlSetting.

With this library I've trended towards removing all of these settings, because... CURL has a lot of settings, where do you draw the line? Many of those settings might be useful to someone.

So instead of adding a lot of functions, it might just be easier for someone to use the curl equivalent instead. They're well documented.