rewriting btagSF computation according to new variables/categories
new dijet weights
new combined weights
for vbf validation
for vbf validation
changes for new weights
Merge pull request #236 from martinamalberti/topic_vbf_validation_weights30ott

Topic vbf validation weights30ott
Merge pull request #235 from michelif/topic_btagSF

rewriting btagSF computation according to new variables/categories