Versioned Urls Plugin
=====================

This plugin modifies Rails' existing asset timestamping mechanism to support 
versioned urls, a-la "http://www.somehost.com/images/logo.gif.v423".  

Moving the asset version information into the path (rather than in a parameter, 
like Rails' default "http://www.somehost.com/images/logo.gif?39487279348") 
makes it possible to force even more aggressive client-side caching of 
assets like images, stylesheets, javascripts, etc.

** NOTE ** that this plugin can only be effective when combined with URL
rewriting and expiration header pushing on your web server.  If you use this 
plugin without adding the appropriate rewriting rules to your web server, none of
your assets will serve correctly.  If you use this plugin without adding the 
appropriate expiration header pushing to your web server, then the plugin won't
be effective at improving browser caching behavior.

For full details, see the blog post at http://blog.dannyburkes.com/versioned-urls-for-rails.