For https://github.com/l0rdn1kk0n/wicket-bootstrap/issues/409#issuecomment-48323076 aka https://github.com/l0rdn1kk0n/wicket-bootstrap/commit/7b153b911d175b42e0afa27a16769ee168e02457

Almost working as intended. However:

1. Make sure Chrome browser cookies/cache is cleared now
2. Run and visit the app
3. Go to `./wicket/resource/com.hendyirawan.lesssample.HomePage/root-classpathabs-ver-#.less`
   This one is correct.
4. Go to `./wicket/resource/com.hendyirawan.lesssample.HomePage/root-package-ver-#.less`
   This one is correct.
5. Now edit anything in `/lesslib/src/main/resources/com/hendyirawan/lesssample/child-other.less`
6. On the browser refresh using F5 (not Shift+F5) `./wicket/resource/com.hendyirawan.lesssample.HomePage/root-package-ver-#.less`
   Your edit should show up.
7. Now go to `./wicket/resource/com.hendyirawan.lesssample.HomePage/root-classpathabs-ver-#.less`
   This shows the old version (just like step 3).
   Try refreshing with F5, it still shows the old version because Wicket sends `304 Not Modified`.
   If you refresh with Shift+F5 now you get the new version.

Tested on Chrome. Maybe different behavior in other browser.