title: WinSCP .NET library: Connect to SFTP server without specifying SSH host key fingerprint
body: <p>In the current stable release of WinSCP, it seems that using <code>SshHostKeyFingerprint</code> is mandatory and there are no ways to connect to SFTP server without that in <code>SessionOptions</code>. I can see that the ability to bypass is added to the beta (5.2) but I was wondering whether or not it's possible to connect without this fingerprint.</p>