Font Awesome version 4.1 introduces 'fa-header'

[jeremylynch]

In Font Awesome 4.1, fa-header has been introduced. The CSS hack in jquery.pagedown-bootstrap.css is no longer needed for users with 4.1, how can we change the code to also accommodate those using 4.0?

.fa-header:before{content:'H';font-family:arial,helvetica,sans-serif;font-weight:bold;}