Client certificate auth support

[fbjork]

Any plans of adding SSL certificate authentication support?

[mwunsch]

What is involved?

[fbjork]

Something like this:

e = Typhoeus::Request.get("https://example.com/action", :ssl_cacert => "ca_file.cer", :ssl_cert => "acert.crt", :ssl_key => "akey.key", [...] end

(from https://github.com/pauldix/typhoeus)

[mwunsch]

There's a bunch of refactoring/rewriting work to be done -- I think this is a great thing to work in.