added magic line
allow for K-factor / sample
add VV samples back; add k-factor for Wjets
remove pos charge from SR
add histogram + minor changes
possibility to pass arguments to plot class
allow for pt reweighting
add low-pt dimu selection
set min scale for log plots, new samples, dump arguments for plot class to summary
bug fix
add options
add a double ratio plot
add zpt vs ht plot
change  DiMu plots to VV strategy (choose good mu pair closest to MZ)
files for 2+n muons
diMuon can return >2 muon indices
add fill methods without sign
adding back in