ssl_min_protocol v2.3.15

Hello,

it seems that the default value for ssl_min_protocol has changed from TLSv1 to TLSv1.2, right?

After upgrading to v2.3.15 and with ssl_min_protocol commented out, the server no longer offers TLSv1 and TLSv1.1.

This is a good idea, but should be documented.

Theo