Heppy: add xsection
Heppy LeptonAnalyzer: updates and more sensible defaults:
- include EAs for isolation in Phys14 25ns samples
  (Data2012 ones are also provided)
- fix electron isolations for R=0.4: before deltaBeta was dummy,
  and rho*EA was using the R=0.3 effective area
- the deltaR cut in the electron-muon cleaning was applied to
  deltaR2 instead of to deltaR, now fixed.
- the default electron tight id was 'MVA' but MVA Id is not yet
  in Heppy so it was dummy: switched to Cuts_2012
- Cuts_2012 electron tightId moved to full5x5 clusters
Heppy: add timing
Phys14 benchmark lepton selection (dz 0.2->0.1; relIso 0.4->0.5, EA corrections, Cut-based 2012 electron id)
Merge pull request #180 from mariadalfonso/TimingXSec

Heppy: Timing and Xsec
Heppy LeptonAnalyzer: updates and more sensible defaults:
- include EAs for isolation in Phys14 25ns samples
  (Data2012 ones are also provided)
- fix electron isolations for R=0.4: before deltaBeta was dummy,
  and rho*EA was using the R=0.3 effective area
- the deltaR cut in the electron-muon cleaning was applied to
  deltaR2 instead of to deltaR, now fixed.
- the default electron tight id was 'MVA' but MVA Id is not yet
  in Heppy so it was dummy: switched to Cuts_2012
- Cuts_2012 electron tightId moved to full5x5 clusters
Merge branch 'heppy_7_2_2_patch2' into CMGTools-from-CMSSW_7_2_3
Heppy: fix application of jet energy correction, and allow specifying to recalibrate only data or only MC
Heppy: Working points for the combinedMVABJetTags tagger (preliminary)
HeppyCore: allow splitting a file in multiple chunks

This feature can be enabled by setting fineSplitFactor = N > 1 on
a component. In that case, the scheduler will make N jobs for each
file, and each job will process 1/N of the events in the file.

To avoid code duplication, now heppy_batch takes the split function
from heppy.

Also, the print out of the time per event has been updated in order
to work correctly with this feature, or in general when not processing
events starting from the first one in the file.
JEC files for PHSY14 v2 https://hypernews.cern.ch/HyperNews/CMS/get/jes/499.html
Use new JEC for PHYS14 samples from the PHYS14_25_V2 global tag (https://hypernews.cern.ch/HyperNews/CMS/get/jes/499.html)
Merge pull request #182 from gpetruc/CMGTools-from-CMSSW_7_2_3

Phys14 benchmark lepton selection and JEC, and Heppy updates