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.

but why'd they called it program_invocation_short_name? They couldn't find a longer name?

fatal logs to the correct place, err only on stderr.

this unlocks the full regress tests on arch, for instance, or every OS where we don't have strl*

these are required to run on arch linux (at least)