Fixed bugs introduced during manual merge

- Now should compile!
Fixed bugs introduced during manual merge [2]
Added customized ntuple_MET.py and ntuple_ZnnHbb.py

- Also added the JSON file used for LHCP results
Updated parameter values in ntuple_MET.py and ntuple_ZnnHbb.py

- dropped the destructor in JECFWLite.h
- trivial fixes in Ntupler.cc
Merge remote-tracking branch 'origin' into EDMV42_Step2_V8_clean