Edited Feature: API access through proxies [1815]

Issue might happen if the user is behind a proxy.

Might be solved by updating the HttpWebRequest.

ServicePointManager.Expect100Continue = true;
ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3;
((HttpWebRequest)webRequest).ProtocolVersion = HttpVersion.Version10;
webRequest.PreAuthenticate = true;
ServicePointManager.ServerCertificateValidationCallback += delegate { return true; };