Unless maybe you need the money and can not find another job? If you can be picky about the companies you work for, you probably don't need an online resume generator anyway?
Yeah, we implemented a build process that combines and minifies all the CSS and JS files, and also converts all the images to sprites to cut down on requests. The hash is to facilitate more efficient caching (you can set it to never expire).
I've been toying with the idea of open-sourcing it, but it would definitely need some cleanup first.