New directive to find visitor IP on complex stacks; no more hacking needed; update README
Inform about separate branch for Amazon Linux AMI, CentOS, etc
Move "include fastcgi_params" to common conf, so that it does not need to be included on each vhost
New script to compile Nginx from source
Remove "include fastcgi_params" from common.conf file and put it in individual vhost entries to avoid a bug with certain use-cases
clean up common.conf and diversify configurations into individual files