[eluser]porquero[/eluser]
I've modified the link_tag helper for reload css files when it changes.
Also I add js_tag helper to make the same.
For this I've created 'MY_html_helper' custom helper, so you can use easily.
Only copy file into 'helpers' in your project.
The functions are:
link_tag()
js_tag();
Example:
// change css/main.css -> css/main.css?{mtime} -> css/main.css?12342343 automaticaly
echo link_tag('css/main.css');
echo js_tag('js/system.js');