o RooAddModel

    - Bug fix: first server is not always convolution variable (J. van Leerdam)

    - Bug fix: attributes of original resolution model not copied convoluted model,
      breaking parameterized integrals (J. van Leerdam)

  o RooFactoryWSTool

    - Increase string buffer size from 10k to 64k

  o FlexibleInterpVar, PiecewiseInterpolation, RooAbsCollection, RooAbsOptTestStatistic,
    RooAddPdf, RooArgList, RooArgSet, RooCategory, RooCompositeDataStore, RooDataHist,
    RooDataSet, RooFormulaVar, RooGaussian, RooHistFunc, RooKeysPdf, RooPoisson, RooProdPdf
    RooProduct, RooRealIntegral, RooRealVar, RooVectorDataStore

    - Migrate to new-style memory tracing
make complex exponential coded in x87 inline asm available with clang

Signed-off-by: Wouter Verkerke <verkerke@nikhef.nl>
fix yet another bug in the analytical integrals over sub-ranges of a RooDataHist

Signed-off-by: Wouter Verkerke <verkerke@nikhef.nl>
RooKeysPdf: faster initialisation of the lookup table

The construction of a RooKeysPdf is now much faster for large data sets.
This is achieved by carefully analysing where the different Gaussians
that the code superimposes can actually contribute. If a contribution
is smaller than the machine precision, the code stops trying to put in
those contributions (it would be lost in rounding anyway), which leads
to roughly 40 % faster construction of the class for large data sets.

Signed-off-by: Wouter Verkerke <verkerke@nikhef.nl>
rewrite RooNormSetCache in STL, retire RooSetPair

this replaces the custom mapping machinery with a STL based solution
which is about as fast and needs about the same amount of memory

Signed-off-by: Wouter Verkerke <verkerke@nikhef.nl>
RooKeysPdf: improve speedup patch for older compiler versions

Signed-off-by: Wouter Verkerke <verkerke@nikhef.nl>