Enable GZIP for CSS and JS files on NGINX server for Magento

This is an working config that I currently use in production.

http://pastie.org/10870547

gzip on;
gzip_disable "msie6";

gzip_comp_level 6;
gzip_min_length 1100;
gzip_buffers 16 8k;
gzip_proxied any;
gzip_types
    text/plain
    text/css
    text/js
    text/xml
    text/javascript
    application/javascript
    application/json
    application/xml
    application/rss+xml
    image/svg+xml;

This config was tested via tools.pingdom.com.