26/06/2008
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* #include <cstdlib> added to Scythe_Error.h to let abort() work also with g++ 4.3
* estimTdiff.smoothSurvReg will no more work when logscale.cov1 and logscale.cov2 are specified

14/08/2007
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* new macro __AK_PRETTY_FUNCTION__ defined in Scythe_Error.h to avoid back compatibility problems with some compilers (thanks to B. Ripley)
* all instances of __PRETTY_FUNCTION__ replaced by __AK_PRETTY_FUNCTION__ 
  in files: Scythe_Matrix.h (8x)
            Scythe_Matrix_Iterator.h (4x)
            Scythe_IDE.cpp (20x)
            Scythe_LA.cpp (11x)
            Scythe_Math.cpp (7x)
            Scythe_Matrix.cpp (43x)
            AKMatrix.cpp (2x)

* bug in Scythe_Matrix.cpp (in Submatrix operator) fixed

* operations of the type "int / SCYTHE::Matrix<double>" and "SCYTHE::Matrix<double> / double" which were declared as illegal by Sun's compilers (thanks to B. Ripley) fixed
