I’ve added the FontAwesome icon set to my TwentyFourteen-Child WordPress theme. The icon set link was added to the the header section within header.php.
<link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet">
Used the Rebel Alliance icon as a test to insure installation was successful.
While researching the proper method for adding header links into a WordPress theme, I found that some people are trimming the FontAwesome icon set down in order to decrease load times. Will have to research further and find out if this is a beneficial modification or an unnecessary tweak.