Merge remote-tracking branch 'origin/master' into FD_solver

build.sh

install_HDF5.sh

install_MPI.sh

install_MPI_mpich.sh

script/download_MPI.sh

src/CSVWriter/CSVWriter_unit_tests.hpp

src/GraphMLWriter/GraphMLWriter_unit_tests.hpp

src/HDF5_wr/HDF5_writer_unit_tests.hpp

src/Plot/GoogleChart.hpp

src/Plot/Plot_unit_tests.hpp

src/RawReader/InitGridWithPixel.hpp

src/RawReader/RawReader_unit_tests.hpp

src/VTKWriter/VTKWriter_grids_util.hpp

src/VTKWriter/VTKWriter_point_set.hpp

src/VTKWriter/VTKWriter_unit_tests.hpp

src/main.cpp

src/util/PathsAndFiles.hpp