I believe I have the correct rewrite code in my nginx config for the site server, but after installing nginx-helper it is still not removing the index.php from permalinks. Is there an additional step I need to take? I do not see any options for permalinks in the nginx-helper plugin settings in wp-admin, and I have already tried changing the actual wp permalink settings back to normal and back again. WP 3.8.1 and latest stable nginx.
location / {
try_files $uri $uri/ /index.php?$args;
}