Post-processing additions + .gitignore adjusted
    - Test the zmin in input file
    - Inequalities adjsuted with tiny due to reading of values in files (which is not double precision)

Signed-off-by: Guillaume Ducrozet <guillaume.ducrozet@ec-nantes.fr>
ifort compiler adjustment
    - makefile with libraries in correct order
    - small errors corrected

Signed-off-by: Guillaume Ducrozet <guillaume.ducrozet@ec-nantes.fr>