from Max Baak: change default interpolation type in the histfactory from 
piece-wise linear to 6th order polynomial interpolation + linear extrapolation


git-svn-id: https://root.cern.ch/svn/root/branches/v5-34-00-patches@49231 27541ba8-7e3a-0410-8455-c3a389f83636
  o RooPlot

    - Thread-safe version of ctors that disable SumW2 option of underlying TH1 (fix for P. Waller)


git-svn-id: https://root.cern.ch/svn/root/branches/v5-34-00-patches@49233 27541ba8-7e3a-0410-8455-c3a389f83636
 o RooMinuit

   - Improve retrieval of MINOS status (fix from Lorenzo)


git-svn-id: https://root.cern.ch/svn/root/branches/v5-34-00-patches@49234 27541ba8-7e3a-0410-8455-c3a389f83636
   o RooNovosibirsk

     - Updated version with analytical integrals and
       reference to original Belle paper in which the
       functional form appeared (from Marko Petric - JIRA-ROOT-5013)


git-svn-id: https://root.cern.ch/svn/root/branches/v5-34-00-patches@49235 27541ba8-7e3a-0410-8455-c3a389f83636
  o RooNovosibirsk

    - Replace 'cerr' call by coutF() call to trigger fatal error, add dummy return statement
      to placate compiler


  o RooProfileLL

    - Move minuit initialization to dedicated private function, also call from validateAbsMin()
      to ensure that Minuit is always initialized before it is used, also if it is called
      via bestFitObs() [ JIRA-ROOT-4884 ]


git-svn-id: https://root.cern.ch/svn/root/branches/v5-34-00-patches@49236 27541ba8-7e3a-0410-8455-c3a389f83636
  

  o RooAbsReal

    - Add code to be able to attach to Bool_t branches of TTrees (JIRA-ROOT-179)


  o RooCompositeDataStore

    - In addColumn() add fundamentals to _vars in composite data store (fix for JIRA-ROOT-4711)


git-svn-id: https://root.cern.ch/svn/root/branches/v5-34-00-patches@49239 27541ba8-7e3a-0410-8455-c3a389f83636
merge with trunk -  revision 49240  - see http://root.cern.ch/viewvc?rev=49240&root=root&view=rev


git-svn-id: https://root.cern.ch/svn/root/branches/v5-34-00-patches@49241 27541ba8-7e3a-0410-8455-c3a389f83636
Avoid uninitalized memory read (SetCharge checks the value of fQ)


git-svn-id: https://root.cern.ch/svn/root/branches/v5-34-00-patches@49242 27541ba8-7e3a-0410-8455-c3a389f83636
In InitializeOffsets, remove the collection branch name in all cases of collection splitting


git-svn-id: https://root.cern.ch/svn/root/branches/v5-34-00-patches@49244 27541ba8-7e3a-0410-8455-c3a389f83636
From Attila Krasznahorkay: add support for some the I/O rule element to be optional (in particular source and target)


git-svn-id: https://root.cern.ch/svn/root/branches/v5-34-00-patches@49248 27541ba8-7e3a-0410-8455-c3a389f83636
A TMathText string was not saved properly in a .C file.


git-svn-id: https://root.cern.ch/svn/root/branches/v5-34-00-patches@49249 27541ba8-7e3a-0410-8455-c3a389f83636
   RooStats::HistFactory::Measurement

   - Fix backward compatibility for streaming with a checksum-based conversion rule
     for the v1 layout of r45704 (string fPOI instead of vector<string> fPOI)
     Also tested against the (different) v1 layout of r46582. No conversion rule
     is needed here, as it only adds a data member

   - Increment version tag to v2 for sane schema evolution from here on


git-svn-id: https://root.cern.ch/svn/root/branches/v5-34-00-patches@49251 27541ba8-7e3a-0410-8455-c3a389f83636
   o RooFitResult

     - Fix variable mapping problem in print statement in createHessePdf [ ROOT-JIRA-4933 ]

  
   o RooCurve

     - Fix nDOF problem in chi^2 calculation with empty bins [ ROOT-JIRA-4836 ]


   o RooAbsReal

      - Copy plot label in copy ctor [ ROOT-JIRA-4987 ]


git-svn-id: https://root.cern.ch/svn/root/branches/v5-34-00-patches@49252 27541ba8-7e3a-0410-8455-c3a389f83636
Fix doc


git-svn-id: https://root.cern.ch/svn/root/branches/v5-34-00-patches@49253 27541ba8-7e3a-0410-8455-c3a389f83636
Increment version to v3 to allow space in the run-time database for both of the v1 alternative schema


git-svn-id: https://root.cern.ch/svn/root/branches/v5-34-00-patches@49255 27541ba8-7e3a-0410-8455-c3a389f83636
 
  o RooAbsTestStatistic, RooRealMPFE

    - Remove stray debug statements


  o RooBanner

    - Increment version tag to 3.56


git-svn-id: https://root.cern.ch/svn/root/branches/v5-34-00-patches@49256 27541ba8-7e3a-0410-8455-c3a389f83636