apache.conf.in: add some more logging fields
Show the time in (almost) RFC 3339 format (strftime has some
limitations and readability is important). It sorts MUCH better now.
Add connection status (%X), keep alive request num (%k), but only when
Apache supports it (2.2.11+), right in front of request line joined to
it with a colon.
Add time in microseconds for request and quoted Content-Range output
header to end.
So now it's possible to tell how long a request took, which bytes
it sent if it's a 206, whether it was aborted and whether it's one
of a chain of "keep alive" requests.
Signed-off-by: Kyle J. McKay <mackyle@gmail.com>