adding chi-squared output to aid user with goodness-of-fit
adding early versions of tail fit bias study code
Merge remote-tracking branch 'upstream/master'
Merge pull request #37 from rcl11/master

tail fitting updates
Merge pull request #40 from roger-wolf/master

adding pull outputs for largest constraints
added LIN corresponding to LOG, added ggH_hww and qqH_hww in em datacards. Up to now these new signal templates are only added to signal but it is not foreseen, yet, to show this contribution separately
cleanup to make it possible at all to run this stuff for SM with new event categories (at least as tested for em now)
added scales*.py to objects to clean the directry from