Just a very quick note to anyone trying to debug why Font Awesome fonts are loading recently … if you have read all things Font Awesome here in the forums to make sure you are doing everything correctly … and you’ve checked, rechecked and pulled your hair out for a few hours to no avail because Font Awesome just keeps on displaying as a lovely vague square … and you gulp and gulp and gulp and Font Awesome just will not load into your dist/fonts … well … here’s a nice slap to the forehead for ya 
It’s …
"font-awesome": { "main": [ "./fonts/*", "./scss/font-awesome.scss" ] },
Not …
"fontawesome": { "main": [ "./fonts/*", "./scss/font-awesome.scss" ] },
Hyphens are evil 