Simultaneous fit for all centrality bins
Simultaneous fit with independent pp and HI signal shape
Fit any number of files simultaneously
Fit any number of files simultaneously (runs now)
clean RooDataset maker
Fix index ambiguity
Add sample category as observable to model
add doubleRatio=1 model as background model
match compiler flags for linux and osx, fix array sizes
Merge branch 'simFits'

Conflicts:
	fitting/runfits_sim.sh