Thunderbird bz 579023 still not fixed even though there is an upstream fix available

[Kevin Kofler]

I wrote:

> Those packages are also sometimes not compliant with Fedora policies such
> as usage of system libraries because any patches to use a system library
> need trademark approval. This is also just unacceptable.

PPS: And another one: xulrunner uses a bundled libffi. Another blatant 
violation of our packaging guidelines. This is fixed in Debian, but we 
aren't applying their patch.

        Kevin Kofler