#325 - #320 Update SCons compilation and fix some problems it showed.

HappyHeart.xcodeproj/project.pbxproj

...teElement/RefFiniteElement/Private/ElementaryDataImpl.cpp

src/Geometry/GeometricElt_free_functions.cpp

src/Geometry/GeometricElt_free_functions.hpp

src/Geometry/GeometricElt_free_functions.hxx

src/Geometry/SConscript

src/Test/Geometry/main_test_jacobian.cpp

src/Test/SConscript

src/Test/main_test.cpp