Merge pull request #19 from friccita/master

A few more bugs fixed
removed line from merge conflicts
updated name of MET collection in MT filter
slight formatting change
restored weighting of mu+had mass by b veto data/MC scale factor
added provision for running without all gluon fusion samples
added MET uncertainties
changed to handle signal weights in a more unified way, some bug fixes, added provision for running without all gluon fusion samples, set verbosity level to ERROR, and reduced to only running the mu+had mass plot for signal uncertainty calculations
removed b veto and reweighting stuff
bugfix in the file listing and removed b veto and reweighting stuff
added b veto scale uncertainties to workflow
added b veto scale uncertainties to workflow
removed b veto stuff and updated to new skims with correct MET objects
changed TauAnalyzer to run on the taus passing the b veto filter
updated dataset locations
added 5 and 7 GeV gg datasets
bugfix in MET uncertainty tools configuration
updated for new scripts
added MET and b veto efficiency data/MC scale uncertainties to workflow
added a few more things to ignore