rewrite main loop using libevent

define TLS_CLIENT_NOT_BEFORE/NOT_AFTER in CGI scripts

don't fprintf

improve logs management

handle also EAGAIN together with EWOULDBLOCK

add the ``entrypoint'' option

swap check in vhost_* fns it's faster (statistically speaking) to first compute if the option is set and then fnmatch than the inverse. This way we can avoid unnecessary fnmatch.

added ``block return'' and ``strip'' options

fix auto index precedence

reload configuration on SIGHUP

use upper bound given by poll it's a waste to loop through all fds. We know the *exact* number of clients that needs attention, so use that information to limit the looping.

revert commit 346f28eeaa205d268d1e63c7ffd86cf041f6d1e6 keep mark_nonblock in utils.c, as otherwise the build for the regress suite will fail (mark_nonblock needs fatal which is in gmid.c, and we can't link gmid.o with the regress suite...)

move mark_nonblock to utils.c

mark various functions as static By marking all those function as static, the compiler is free to do more optimizations. In addition, those functions are not used outside server.c

cgi now follows globbing rules