Due to our firewall/proxy setup in prod, our HttpContext is unsecure behind the firewall but to our users is https. We need a way to force https for the ReCaptcha helper.
Something like:
```
public static HelperResult GetHtml(HttpContextBase httpContext, string publicKey = null, object options = null, forceSSL = false)
```
Which would pass forceSSL to the GetChallengeUrl and GetUrlHelper methods.
Something like:
```
public static HelperResult GetHtml(HttpContextBase httpContext, string publicKey = null, object options = null, forceSSL = false)
```
Which would pass forceSSL to the GetChallengeUrl and GetUrlHelper methods.