Add EM::Connection#get_server_name_indication
Fix typo: cast to an unsigned long, not a signed long.
Allow choosing of SSL/TLS certificate based on hostname.
Allow partial hostname matching for wildcard SSL certs.
Pass ssl_version through to the SslBox.
Accept multiple host TLS configs directly from connection.rb.
Pass cipher list all the way through on a per-certificate basis.
Tidy up SSL changes.