[MERGE] Merge with kra568 dev.

CMakeLists.txt

build_scripts/load_salomon_modules.inc

queue.sh

run_test_HE4_new.sh

src/CrossValidator/CrossValidator.cpp

src/CrossValidator/CrossValidator.h

src/ErrorFunction/ErrorFunctions.cpp

src/LearningMethods/LevenbergMarquardt.cpp

src/Network/ACSFNeuralNetwork.cpp

src/Network/ACSFNeuralNetwork.h

src/Network/NeuralNetwork.cpp

src/Neuron/NeuronAbsolute.cpp

src/examples/acsf.cpp

src/mpi_wrapper.h