Re: text-decoration: underline fix

fantasai wrote:
> This test
>   
> http://www.w3.org/Style/CSS/Test/CSS2.1/current/html4/t1504-c543-txt-decor-00-d-g.htm 
> 
> expects images to be underlined, but the spec was recently clarified to 
> forbid this behavior. I've written an update for the test, can someone
> please review?

Checked-in, r=melinda.grant

~fantasai