Change font-awesome to be pulled through LessLoader which will rewrite the font file URLs to use ver= parameter

www/oldcode/inner.js

@@ -3,7 +3,7 @@ define([
 
     'cm/lib/codemirror',
 
-    'css!/bower_components/components-font-awesome/css/font-awesome.min.css',
+    'less!/bower_components/components-font-awesome/css/font-awesome.min.css',
     'css!/bower_components/bootstrap/dist/css/bootstrap.min.css',
     'less!/code/code.less',
     'less!/customize/src/less/toolbar.less',

www/oldcode/main.js

@@ -10,7 +10,7 @@ define([
     '/common/cryptget.js',
     '/common/diffMarked.js',
 
-    'css!/bower_components/components-font-awesome/css/font-awesome.min.css',
+    'less!/bower_components/components-font-awesome/css/font-awesome.min.css',
     'less!/customize/src/less/cryptpad.less'
 ], function ($, Crypto, Realtime, TextPatcher, Toolbar, JSONSortify, JsonOT, Cryptpad,
              Cryptget, DiffMd) {