Changes between 1.1.0f and 1.1.1 [xx XXX xxxx]
+ *) Add SM3 implemented according to GB/T 32905-2016
+ [ Jack Lloyd <jack.lloyd@ribose.com>,
+ Ronald Tse <ronald.tse@ribose.com>,
+ Erick Borsboom <erick.borsboom@ribose.com> ]
+
*) Add 'Maximum Fragment Length' TLS extension negotiation and support
as documented in RFC6066.
Based on a patch from Tomasz Moń