Merging with master

build_pdata.sh

example/Grid/0_simple/main.cpp

example/Grid/1_stencil/main.cpp

example/Vector/0_simple/main.cpp

install

script/detect_gcc

script/detect_osx

script/pre_req

script/py/pack_examples.py

script/py/process_examples.py

src/Decomposition/CartDecomposition.hpp

src/Decomposition/DistModel.hpp

src/Decomposition/ie_loc_ghost.hpp

src/Grid/grid_dist_id.hpp

src/Grid/grid_dist_id_unit_test.hpp

src/Grid/grid_dist_key.hpp

src/Makefile.am

src/SubdomainGraphNodes.hpp

src/Vector/vector_dist.hpp

src/Vector/vector_dist_unit_test.hpp