fix config reload the old server processes would stick around waiting on the signals events. While there, also drop the `struct server_events' and define events as globals.

fix "first location" bug reported by devel at datenbrei dot de. The first location would overwrite the default value for a server, triggering the "`foo' rule specified more than once" error. This also needed a small tweak on how we match locations to avoid breaking other tests.

add `require client ca' rule to require certs signed by a CA

refactor apply_block_return move the strip and fmt logic to their own function

fix seccomp for the new event loop add/remove syscalls from the BPF filter and move sandbox() after libevent initialisation

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