reduced yield uncertainty on QCD from 35% to 10%
(= OS/SS uncertainty used in etaua nd mutau channels; we now propagate the fake-rate uncertainties, so less additional uncertainty on yield is justified)
Merge https://github.com/ffrensch/HiggsAnalysis-HiggsToTauTau
Merge pull request #5 from veelken/master

reduced uncertainty on QCD normalization in tautau channel
Merge pull request #472 from ffrensch/master

 reduced yield uncertainty on QCD from 35% to 10%