fixing divide by zero bug
adding RegressionData class which will calculate all regression input variables rather than code copy and pastes as is currently
adding function to create the input vector & some small fixes
few bug fixes
rename of class from RegressionData to EcalRegressionData
rename complete of RegressionData-> EcalRegressionData
intermediate testing version to verfiy the input vector greated with EcalRegressionData is identical to the existing one
updating RegressionHelper to use EcalRegressionData
moving EcalRegressionData to EgammaTools as its not electron specific
updating to new location of header files
adding a filler function when the vertex collection isnt availible
intermediate debug version to ensure that input remains the same
making PhotonProducer pick up variables from the same code as the regression code, this changed what is stored but hopefully for the better
re-factoring BaselinePFSCRegression to reduce code duplication
move all vector/matrix instantiation to constructor
making the dR comparision  dR2
fixing seg fault bug
fixing sigmaIEtaIPhi miss assigment
introduce NominalCollision2015 beamspot scenario, according to: https://indico.cern.ch/event/341218/
beamspot of postLs1 relvals set to NominalCollision2015; run1 relvals left as they were, making it explicit Realistic8TeVCollision (note: Realistic8TeVCollision is still the cmsDriver default)