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.

Another one: Thunderbird STILL bundles its own Gecko instead of using the 
system xulrunner, another blatant violation of our packaging guidelines. 
Nothing is done to fix this issue because upstream does not care and we 
can't change what they ship.

        Kevin Kofler