Merge branch 'precompute' into develop

Core/Algorithms/FitElement.h

Core/PythonAPI/libBornAgainCore.py

Core/PythonAPI/libBornAgainCore_wrap.cxx

Core/Tools/AttLimits.h

Core/Tools/IObserver.cpp

Core/Tools/RealParameterWrapper.h

Core/Tools/SafePointerVector.h

Fit/FitKernel/FitKernel.h

Fit/FitKernel/FitObject.h

Fit/FitKernel/FitSuite.cpp

Fit/FitKernel/FitSuite.h

Fit/FitKernel/FitSuitePrintObserver.cpp

Fit/FitKernel/IFitObserver.cpp

Fit/FitKernel/IFitStrategy.h

Fit/PythonAPI/libBornAgainFit_wrap.cxx

Fit/StandardFits/IMinimizerFunctionalTest.cpp

Fit/StandardFits/MinimizerFunctionalTests.cpp

GUI/coregui/Views/FitWidgets/FitTools.cpp

GUI/coregui/Views/FitWidgets/RunFitManager.h

GUI/coregui/Views/FitWidgets/RunFitWidget.cpp