introduce new access methods for Durham and Jade yflip
remove old yflip access methods
make getTLorentzVectors cache results
use getAndFillDifferentialDataStructure in ObsFastJetDiff
cleanups
follow up changes to NtupleReader
Additions for ObservableFactory and interpreted scripts
add ObservableFactory
make algorithm (finally) configurable
more mods for interpretation
LEP analysis script
move common code (getAndFillJetrateDataStructure) to ObsJetrate