added mass binning with 42 bins in 1D (default): _MassBins_2012
added a function extractSubArea(TH2D). In MyTools.hh also corrected createProfileX and createProfileY
introduced a function preparePseudoExps to setup ro_DATA and ro_MC variables
Calculation of covariances 1st version. cov(Rho,Rho)
added resetAxis variable to extractSubArea function
added DrawCorr. If canvas is NULL, Draw does not attempt to plot
added functionality
added checks for scale factors and saving as histograms without underflow