I really want to get rid of the `executor' process hack for CGI scripts and its escalation to allow fastcgi and proxying to work on non-OpenBSD. This drops the CGI support and the `executor' process entirely and is the first step towards gmid 2.0. It also allows to have more secure defaults. On non-OpenBSD systems this means that the sandbox will be deactivated as soon as fastcgi or proxying are used: you can't open sockets under FreeBSD' capsicum(4) and I don't want to go thru the pain of making it work under linux' seccomp/landlock. Patches are always welcome however. For folks using CGI scripts (hey, I'm one of you!) not all hope is lost: fcgiwrap or OpenBSD' slowcgi(8) are ways to run CGI scripts as they were FastCGI applications. fixes for the documentation and to the non-OpenBSD sandboxes will follow.

not just the number of lines, check the full page!

it's not a problem when we have only one check_reply at then end, since $? is kept across function boundaries, but when we have multiple checks we need to quit on the first error.

libevent2 can still somehowe call client_read even in code paths that never enable reading from the evbuffer. Can't reproduce on the libevent in base on OpenBSD. It's a bit ugly, but it's a small workaround for something that otherwise *always* make gmid crash when linked against libevent2. (client_read works under the assumption that c->host != NULL, matched_proxy crashes otherwise.)

while there also change the dependency in the makefile: iri_test should be alone, not as deps of `data'.