Remove break tags

Love this module. I would like to offer a bit of help. When the 'Back To Top' links are not used, the faq output contains MANY break tags. They are all superfluous, because the same output can be achieved with a little css. I removed all the break tags and (in my opinion) the output is much better looking. (Not so much empty space.)

To do this I just replaced all lines containing:

$back_to_top = '<br />&nbsp;';

with:

$back_to_top = '';

I don't have access to diff, so I can't submit a patch. I hope this is enough to work with and helps.