Model for calculating the ratios

for all decay and production modes
DegenerateMatrixRank.py
Merge pull request #62 from jheikkil/HiggsAllModes5x4

Thanks!
fixing bug in the treatment of shape? nuisances
Merge pull request #70 from pjdunne/shapelnnbugfix

Bug fix for treatment of "shape?" type nuisances
Adding implementation of getValV method for RooMultiPdf (was causing issues with Asimov toys)
Merge pull request #75 from nucleosynthesis/nckw-implement-virtual-getValV

Adding implementation of getValV method for RooMultiPdf