Fix momentumTensor calculation

Norm of momentumTensor should be initialized with zero
add pythia8 internal MLM-style matching implementation (code temporarily copied into cms repository)
first attempt to add #ptclus comment line parsing for excluding EWK-produced partons from matching
Add miniAOD step into runTheMatrix
Merged miniAOD-in-runTheMatrix-v1 from repository srimanob
add miniaod to runTheMatrix for 70X
Same changes as for CMSSW_7_2_X_sherpa_2.1.1 applied to CMSSW_7_1_X
Missed to remove obsolete header
Remove tarballs from repository
Update the MINIAOD
Mixed up changes from 72X with 71X, reversed changes to Buildfile and FetcherRRR
cleanup generator, more correct sampling of time of collision
add reading and storage of npLO and npNLO LHE multiplicity tags used to automate NLO merging
skip unknown xml tags within the <event> tags
Updated the JetMatchingPy8Internal.h code so that nPartons uses typeIdx instead of origTypeIdx in most of the places.
retrieve the DJR directly from JetMatchingPy8Internal.h
First move to record the DJR and nME values to edm
finalized the record in edm of the DJR values
bug fix: nMEPartons reset for each new event
Adapt to most recent version of the JetMatchingP8internal.h code. DJR estimation is now done using slowJet