bug fix in primary vertex selection
added plots of mu+had mass and HPS tau pT per decay mode, added plots of energy fraction of jet carried by tau vs. tau isolation
changed some canvas sizes, changed the normalization of stuff plotted in plot2Histograms, and added fake rate calculation vs. mu+had mass and HPS tau decay mode
added Pythia decay switches for a1 to force 4-tau final state
updated for compatibility with running over photon dataset
added plots of mu+had mass and HPS tau pT per decay mode, added plots of energy fraction of jet carried by tau vs. tau isolation, added single photon data analysis, added region B QCD estimate from region D