[wicket-bootstrap3] How to add Fontawsome

[David Beer]

Hi All

I see that Fontawsome was added to the extensions for wicket-bootstrap.
However I can't see how to add the CSS reference. I have tried using
CSSHeaderItem and adding that to the renderHead of the page but no CSS file
gets added.

How do I go about adding this to my Bootstrap3 project?

Thanks

David