Optimize FlexibleInterpvar::evaluate in case of interpcode=4.
Cache now the polynomial coefficient and avoid computing it every time.
Evaluate also the polynomials using Horner’s method. This is done now also in PiecewiseInterpolation.
This changes speed up an Atlas ttbar test workspace by almost a factor of 2 on Linux gcc4.8
From Egor: Added possibility to divide a sphere in phi
Apply a patch from Bertrand to fix warning C4436 from VS
(dynamic_cast from virtual base 'class1' to 'class2' in constructor or destructor )
Fix typos.
Make sure the hist fill color and frame fill color are different in case of option BAR or HBAR.
Make TH1::Copy public , to be able to do deep copy of TH1 pointers without using TH1::Clone
Remove usage of TRef in HistFactory. It is not needed. Replace with a simple wrapped class to manage histogram pointer
(RooStats::HistFactory::HistRef)
This should fix a bug reported by Swagato
Fix also memory leaks created by cloning histograms in histooworkspace
Add a histfactory test from Christian (stresshistFactory ) in $ROOTSYS/test
Fix makefile test for stressHistFactory
Add stressHistfactory test only when ROOT is built with xml support