add zlib support and remove patented ciphers.

component/openssl/buildout.cfg

@@ -33,8 +33,7 @@ configure-options =
   --openssldir=${buildout:parts-directory}/${:_buildout_section_name_}/etc/ssl
   --prefix=${buildout:parts-directory}/${:_buildout_section_name_}
   --libdir=lib
-  shared
-  no-zlib
+  shared no-idea no-mdc2 no-rc5 zlib
   -Wl,-rpath=${zlib:location}/lib -Wl,-rpath=${buildout:parts-directory}/${:_buildout_section_name_}/lib
 
 # it seems that parallel build sometimes fails for openssl.