Merge pull request #1 from digiovan/master

adding script to plot dimuon mass S/B weighted
added directories that got missed during git conversion
added .gitignore
Merge pull request #2 from digiovan/master

Added the data-bkg(from fit) distribution
Now can run makeCards.py in 0.1 GeV steps
Changed line in runMassLimitslxbatch.sh to be
ready to rerun couplings combination
update dataMC titles to match PAS text
updated all plotters so that they use updated titles and cat names
also updated shape plotter in helpers: missed some change somewhere
added:
  drawEELimitPlot.py drawEEMMlimits.py
  etc/limits_xsbr_hmm.txt & hee.csv
makeLimitPlots.py now does xsbr
helpers.py: now save .C
added fullBiasStudy.py, and others (forgot commit -a last time)
added Voit+Exp working and red vert median lines
bias hack: switched ref and true samples
fullBiasStudy.py: added pickling of data
fullBiasStudy.py: added n,err,chi2, and ndf to data pkl
fullBiasStudy.py: added plotting of more diagnostic vars
moved toy study into it's own method
fullBiasStudy.py: made things work with multiple ref PDFs
fullBiasStudy.py: fix small bug
fullBiasStudy.py: fix possible bug in naming of reference dist
fullBiasStudy.py: added a few more tests