UEFI secure boot white paper

[mjg59]

As people have probably noticed, last week we published a white paper on the UEFI secure boot issue. This was written in collaboration with Canonical and wouldn't have been possible without the tireless work of Jeremy Kerr. It's the kind of problem that affects the entire Linux community, and I'm glad that we've both demonstrated that being competitors is less important than working together for the benefit of everyone.