#1485 Update FontAwesome to the latest version

modules/boonex/fontawesome/template/css/icons.css

@@ -4460,7 +4460,7 @@
 .sys-icon.user-times:before, .fa-user-times:before {
   content: "\f235"; }
 
-.sys-icon.users:before, .fa-users:before {
+.sys-icon.users:before, .sys-icon.group:before, .fa-users:before {
   content: "\f0c0"; }
 
 .sys-icon.users-class:before, .fa-users-class:before {