define TLS_CLIENT_NOT_BEFORE/NOT_AFTER in CGI scripts

[cgi] split the query in words if needed and add them to the argv

add trailing \n in yyerror

move logging code to log.c

don't fprintf

use log_err instead of fprintf

improve logs management

added prefork option

handle also EAGAIN together with EWOULDBLOCK

add set -e to env script It avoids some long sequences of "echo: IO error" when the client close the connection before EOF.

keep original CFLAGS

add missing declaration of TENTRYPOINT

define MANDIR

drop sample.conf and add something to the README.md

reorder stuff