argv0_show() add and finish
change "EXPRESSION==0" to "\!EXPRESSION" on main, on cliaspora.c
argv0_lookup() add and finish on cliaspora.c
argv0_list() add and finish on cliaspora.c
argv0_like() add and finish on cliaspora.c
argv0_delete() add and finish on cliaspora.c
argv0_upload() add and finish on cliaspora.c