ajgilbert/ICHiggsTauTau — pull request #11 by ajgilbert (2014-12-12 17:25:00+00:00)
Title: Improvement to the handing of TH1s

- Observation, Process and Systematic classes are now responsible for
ensuring any TH1 passed in does not have negative bins, as well as
performing the scaling to unit integral
- The set_shape methods now take an extra bool which determines in the
norm value should be updated to the histogram integral or not
- New methods for getting clones or copies of the internal TH1 are
added
- basic implementation of flags to control the behaviour of
CombineHarvester added. Currently plan to hard-code these to
something sensible and add an interface later