Adding top pt reweighting settings to ConfigFile.h and .cpp
Updating python config files with top pt reweighting flag, jet smearing and correcting file paths.
Taking requirement for matched jet energy to be non-zero into the previous if statement (previously the separate if statement was causing it to miss
some jets in an event).
Merge pull request #81 from jjacob/master

Committing my changes from August while looking into synchronisation. Also added top pt and jet smearing flag into test config files.