Scripts for producing unfolding histograms from BLT unfold ntuples.
Modify setup, so virtual python environment is given priority if CMSSW has been setup.
Merge pull request #118 from EmyrClement/BLT_Unfold_ForPull

Scripts for running on BLT unfolding ntuples
Change error def for LL method.  Correct lnL (will be merged with Luke's pull). Divide lnL by number of distributions to attempt to correct underestimated error.
Modify scripts to run new tests.
Modify script to run closure tests. Set qcd template initial normalisation to 0.1 if less than 0.1
Add scripts for producing plots and tables from closure tests.
Remove constraints on QCD and V+jets.
Small change to script for debugging.
Output tables in latex format.  Add extra table.