add vertex fit electron veto decision for PAT photons
add hasPixelSeed member function for electron veto
add input variables for photon regression energy correction
initialize the new variables
keep old ClassVersion and increase it to 11
added new tagging variables and new version of CombinedSVComputer
minor fixes
combined CSVV2+SL tagger
changes needed or combined CSVV2_SL tagger
if-else instead of ifs and removing the unneeded exception
use selectedTracks, trackQuality 'any', define trackJetPt, use std::copy in MVAComputer.cc
updated definition of track-based pt
fix double usage of seeding track
alignment fixed
redefine var.multiplicity=0
change ranges in packed cands, fix trackvertex unpacker, commented code for covariance propagation to PCA
add hcal noise summary to the event content
Shower shape cleanup in electrons:
  * remove r9, sigmaIphiIphi from pat::Electron (in new releases it
    is already in reco::GsfElectron)
  * duplicate the 7.1.X interface of reco::GsfElectron from
    PR #3710 for the non-ZS ones, so that the 70X code will
    be forward-compatible with 71X
add setters to egamma objects to allow relinking to reduced collections for mini aod
add ReducedEGProducer for creating reduced collections of electrons and photons with consistently relinked clusters and conversions