Merge branch 'Release_0.9.0' into benchmark_paper

src/Decomposition/CartDecomposition.hpp

src/Decomposition/Domain_NN_calculator_cart.hpp

src/Grid/Iterators/grid_dist_id_iterators_unit_tests.hpp

src/Makefile.am

src/Vector/Iterators/vector_dist_iterator.hpp

src/Vector/vector_dist.hpp

src/Vector/vector_dist_NN_tests.hpp

src/Vector/vector_dist_cell_list_tests.hpp

src/Vector/vector_dist_comm.hpp

src/Vector/vector_dist_key.hpp

src/main.cpp