MINOR: ssl: add fetchs 'ssl_c_der' and 'ssl_f_der' to return DER formatted certs

ssl_c_der : binary
  Returns the DER formatted certificate presented by the client when the
  incoming connection was made over an SSL/TLS transport layer. When used for
  an ACL, the value(s) to match against can be passed in hexadecimal form.

ssl_f_der : binary
  Returns the DER formatted certificate presented by the frontend when the
  incoming connection was made over an SSL/TLS transport layer. When used for
  an ACL, the value(s) to match against can be passed in hexadecimal form.
(cherry picked from commit 43e7958def282deebde934950b133a1dd9edaabf)
MINOR: ssl: add statement to force some ssl options in global.

Adds global statements 'ssl-default-server-options' and
'ssl-default-bind-options' to force on 'server' and 'bind' lines
some ssl options.

Currently available options are 'no-sslv3', 'no-tlsv10', 'no-tlsv11',
'no-tlsv12', 'force-sslv3', 'force-tlsv10', 'force-tlsv11',
'force-tlsv12', and 'no-tls-tickets'.

Example:
      global
        ssl-default-server-options no-sslv3
        ssl-default-bind-options no-sslv3
(cherry picked from commit 2c86cbf7539af2008d61780b14f37ea8c46c2192)