Previously we sometimes set it to $proxy_add_x_forwarded_for and other
times to $remote_addr, but according to
http://wiki.nginx.org/HttpProxyModule#.24proxy_add_x_forwarded_for
$proxy_add_x_forwarded_for handles this for us -- it will be
$remote_addr if there was no X-Forwarded-For header anyway.
(imported from commit 67dc52250e3e7751b1bf375d1a71d0272475435c)
This is something we forgot to do in the VPC migration, so our IPs
have all been the lb0 IP in our logs :(.
(imported from commit 9d3fc69cf72a84f7bd7c54e50fb1e776a67d971f)
Now app.d is something that any app frontend will read, and we just
have secondary manifests add additional files to the app.d directory
for custom stuff.
This fixes the issue that we were incorrectly including the
lb0-related app configuration in the enterprise version.
(imported from commit dec8dcdf2506b82e51186ff936c26dc1cd6cf61b)
