Updating Icons

Thank you for this great theme!

I would like to ask you if there is any way to update the fontawesome icons that the theme uses from 3.X version to 4.2? I need to use some icons that are not included in 3.x. I tried to update the fontawesome-webfont.eot, fontawesome-webfont.svg, fontawesome-webfont.woff and fontawesome-webfont.ttf files but nothing actualy happened!

Could you please tell me what I have to do in order to use all the icons that are included in fontawesome 4.2!!

Thank you in advance!