uniformisation of md_cd
re-integration of fnct_lib, not __sub_in_for, a new development will start. fnct_lib load default wished lib, 3 major lib see content inside.
Moving top declare subset from fnct_debian_lib to fnct_lib
uniformisation of GetPasswd from _sub_ssh_handler, latest ssh + ssl package let AgentLoader working
fixing minor problems inside fnct_debian_lib
updating README.rst