Updated ttbar x-section to NNLO (245.8pb)
Some formatting changes
Updating some of the global variables to sensible values (gets overwritten by python config anyway)
updated the test file
added a prefix for JER systematic jobs
Dirty fix for the jet smearing (needs scrutinising)
Added the JER systematic to the start_Analysis script
Merge pull request #60 from senkin/update_to_NNLO

A few changes