View adds yield systematics
added features: automatic merging of views in get_view, MC error bar in ratio plot, option to add sub-directories
add option not to run with xrd
add functor from TH1
get fit error bands from RooFit and save them in histograms
add pileup systemaitc uncertainties
bugfix
Merge pull request #1 from mverzett/etauAnalysis

Etau analysis