Merge pull request #8 from mverzett/master

Updates for WH, add more discriminants
added MET histograms
moved selections to common area, added isoTrigger for 8TeV (same as analyzer) added Mu8Ele17 path
added MET plot
removed unused fake rate fits, added tasks to make control plots
temporary save, still developing
added mu > 10 ele > 20 path
small changes
work in progress
commented out unused plots
added electron pt20 fakerates
update
moved to rake-based plotting
added eet (and related) rake targets