Merge pull request #50 from kreczko/master

Fix for incomplete recipe
Removing snap_zero because it seems to not work with the newest rootpy or matplotlib or something...
Corrected x-axis labelling on muon eta plots comparing btag regions.
Added following lines to fit results tables: Sum MC in, Sum MC fit, and Sum Data.
Merge pull request #51 from jjacob/master

Changes to be able to run scripts with new rootpy/matplotlib and some small corrections
adding an example for RooFit, next one to follow