Merge pull request #70 from roger-wolf/master

Mass Estimate
fix small bug in shape uncertainty names, now different for btag and nobtag
plotting of the relative difference between limits - used for bbb study but i think its useful
Merge remote-tracking branch 'upstream/master'
Merge pull request #71 from ffrensch/master

relative difference between limits - used for bbb study, but i guess still useful to have
distinguish the x-axis label between mssm-xsec and mssem-tanb
Merge remote-tracking branch 'upstream/master'
Merge pull request #72 from ffrensch/master

distinguish the x-axis label between mssm-xsec and mssem-tanb
adding functionality to deal with infinite points in the generated histograms by truncating the function before the infinite point. To be tested. Should allow us to fit some btag 7TeV shapes.
adding the QCD fits for btag 7TeV. These can now get a fit with new functionality to deal with infinite points in histograms
Merge pull request #74 from roger-wolf/master

this is now fully tested on a small set of toys and worls as expected. A...
Merge pull request #73 from rcl11/master

Some further updates for tail fitting
Merge pull request #75 from roger-wolf/master

First version of Goodness of Fit
saver way to find std::max for lower bounds of Goddness of Fit histogram for expected
clean up of uncertainty files for SM analysis