Discontinue support of unsecure and unsupported OpenSSL versions (< 1.0.1)

Currently MariaDB server supports OpenSSL versions 0.9, 1.0, 1.0.1, 1..0.2 (and 1.1 when MDEV-10332 is finished)

• OpenSSL version 0.9.8 and 1.0 eoled in 2015
• OpenSSL 1.0.1 eoled in 2016
• Both versions will not get security updates/fixes anymore
• All major distros which still support 0.9 or 1.0 didn't fix any CVE during the last 12 months
• OpenSSL 0.9 doesn't support TLS 1.1 and TLS 1.2
• mtr tests fail due to lack of ciphers
• mtr tests fail if server and client don't use the same OpenSSL version (0.9 or 1.0)

Suggestion:

Stop cmake build if OpenSSL version number is < 1.0.1

See also: MySQL Documentation - Building with secure connection support