OCB no longer needs patent

[richsalz]

This affects the "source" part of the website. From a posting to CFRG, https://mailarchive.ietf.org/arch/msg/cfrg/qLTveWOdTJcLn4HP3ev-vrj05Vg/:

I can confirm that I have abandoned all OCB patents
and placed into the public domain all OCB-related IP of mine.
While I have been telling people this for quite some time, I don't
think I ever made a proper announcement to the CFRG or on the
OCB webpage. Consider that done.

I hope people will use the scheme to do positive things.

phil