* ext/openssl/lib/net/ssl.rb (OpenSSL::SSL::SSLContext#set_params): new method to set suitable SSL parameters. * lib/net/pop.rb, lib/net/http.rb, lib/net/imap.rb, test/openssl/test_ssl.rb: follow above change. * test/net/http/test_https.rb: refine error case. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@14479 b2dd03c8-39d4-4d8f-98ff-823fe69b080e