critical bug fix for application of BDT gamma/hadron separation: highest zenith bins was completely dropped in case training files are missing for one energy bin. This affected the hard cuts only and removed all events for the lowest elevation bin (TMVA evaluator)
code cleanup in TMVA evaluator
increased robustness for reading number of samples of readout window from VBF files. This recovers those runs, where for some reason the more than 10,000 events in the beginning of the run are empty, but the rest of the run is ok.
adapted energy threshold calculation to optimised effective area tree structures
Changes compared to alpha.19: