generalising the unfolding work-flow to easily include new variables.
Cleaning up variable names in UnfoldingAnalyser:
Change someVariable to some_variable
Updating the reco jet collection for the unfolding analyser.
Currently selectedPatJetsPFlow changing to "topPairEPlusJetsSelection", electronselectionPrefix + 'cleanedJets', 'PAT' (+ muon version)

Also fixing unfolding work flow by removing old analysers and other things.
Merge pull request #23 from kreczko/master

Additional variables for unfolding work flow