Fixing memory leak when running BAT on data ntuples (Issue #61).
Made suggested changes to jet smearing code.
Initialising isRealData with false in src/JetReader.cpp (Issue #61).
Added flag to select to apply jet smearing or not.
Added setting in master_2012_cfg.py so that applyJetSmearing is set to true for all runs for latest analysis with newest ntuples.
Corrected mistake in python/master_2012_cfg.py to set applyJetSmearing to True by default.
Minor change in src/Readers/JetReader.cpp.
Merge pull request #71 from jjacob/Jets

Fixing memory leak when running BAT on data ntuples (Issue #61).