[Rivet] Rivet 2.2.0 release tonight!

[Andy Buckley]

Hi everyone,

After quite some development, user guinea-pig testing at BOOST and the
MCnet school, and some great dev & validation work from Chris and
David... we are finally ready to release Rivet 2.2.0 (and a
corresponding YODA update).

I'm going to do the tagging, tarring, announcing etc. later today if
there's no opposition... so if you want to urgently block the release
then speak now!

Best wishes,
Andy

-- 
Dr Andy Buckley, Royal Society University Research Fellow
Particle Physics Expt Group, University of Glasgow / PH Dept, CERN