Before we mmap(2) file for reading, and use a buffer to handle CGI scripts. Turns out, for sequential access over the whole mmap isn't better than our loop on read. This has also the additional advantage that we can use handle_cgi (now handle_copy) for both files and CGI, which is pretty cool. This also fixes a nasty bug where we could hang a connection forever, because we scheduled the wrong type of event (read on POLLOUT and write on POLLIN, it's the other way around!)

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.

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.

move the strip and fmt logic to their own function

add/remove syscalls from the BPF filter and move sandbox() after libevent initialisation

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.