Hello Ciarán,
I like to use the G+ icon on a J51-Revolve web site instead of the g+ icon. I already installed the latest Font Awesome set but it will not work.
When I select fa-google-plus it still shows the g+ icon. But when I take a look in the FA-set the right icon (G+) is showed. So it seems to me that the template is getting the icon not from the Font Awesome set but somewhere else...
Do you (or anybody else) have a clue what's happening? And how to solve it?