Philippe 31/10/2017: change version number to 5.4.0

src/MNH/version.f90

src/configure

src/job_make_examples_BG

src/job_make_examples_BGQ

src/job_make_examples_BullX

src/job_make_examples_BullX_eos

src/job_make_examples_BullX_occigen

src/job_make_examples_CRAY_cca

src/job_make_examples_IBM_ada

src/job_make_examples_IBM_sp6_vargas

src/job_make_examples_NEC_SX8

src/job_make_examples_SX8

src/job_make_examples_cxa

src/job_make_mesonh_BG

src/job_make_mesonh_BGQ

src/job_make_mesonh_BullX

src/job_make_mesonh_CRAY_cca

src/job_make_mesonh_IBM_ada

src/job_make_mesonh_IBM_sp6_vargas

src/job_make_mesonh_MFSX8