Merge pull request #51 from lefta/v2

Same as my latest, but to right branch + ft_printf framework
Add standard input test for GNL

if fd <= 0 when checking errors instead of fd < 0
Merge pull request #54 from iadjedj/v2

Add standard input test for GNL
update gitignore
fix config ini and add libft includes to libft_tests/Makefile
update v2 for GNL
cleanup
Delete 31_bonus_one_static_var.spec.c
Update README.md
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Update README.md
Update README.md
Update README.md
Clean readme
Update README.md
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Update README.md
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