[pyOpenSSL] pyOpenSSL support for PKCS12 modification and export

[Rick Dean]

Hey Phil Mayers,

I believe your patch leaks objects when 
setting a certificate or key of a PKCS12
when one is already set?

I have worked on a PKCS12 patch as well, that
includes a larger API such as the CA certs and
friendly name.  Would you please have a look?

https://code.launchpad.net/~rick-fdd/pyopenssl/pkcs12_mod_and_export2

-- 
Rick