Reviewed-by: Richard Levitte <levitte@openssl.org> Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/2301)
Reviewed-by: Rich Salz <rsalz@openssl.org> (Merged from https://github.com/openssl/openssl/pull/2235)
Add certifcate selection tests: the certificate type is selected by cipher string and signature algorithm. Reviewed-by: Emilia Käsper <emilia@openssl.org> (Merged from https://github.com/openssl/openssl/pull/2224)