Updating the unfolding performance scripts
Updating the make fit variables script
Merge pull request #123 from senkin/unfolding_test

Unfolding checks update
First working example of extracting b jet efficiencies.
Work on btag producer.  Calculate efficiencies binned in eta and pt (of reco jet) and output histogram.
Modify script to run on BLT output and to run on all the necessary samples.
Change file names for debug.