The objective functions H1FitChisquare and H1FitLikelihood previously in TH1
or TGraph have been moved to TFitter.
The global variables communicating with TH1 or TGraph have been replaced
by the functions in TVirtualFitter.


git-svn-id: http://root.cern.ch/svn/root/trunk@6540 27541ba8-7e3a-0410-8455-c3a389f83636