Patch to make openssl1 even more XMPP-friendly

XMPP牛人写的一个patch:

https://gist.github.com/1511463

description:

This adds support for xmpp-server, allows setting the name of the server
differently than the host you're connecting to (using -servername, which
also does SNI if you have that enabled), and prints out the details of
id-on-xmppAddr and id-on-dnsSRV subject alternative names (which we're using
on Connect)