Remove version number from font awesome

The version number in the query string is not necessary for fingerprinted assets.

I'm not sure about the purpose of the #iefix anchor so I've left it in.

Additionally, some web servers do not handle query strings very well, such as SimpleHTTPServer.

backend/app/assets/stylesheets/admin/plugins/_font-awesome.scss

@@ -27,8 +27,8 @@
  * -------------------------- */
 @font-face {
   font-family: 'FontAwesome';
-  src: font-url('fontawesome-webfont.eot?v=3.2.1');
-  src: font-url('fontawesome-webfont.eot?#iefix&v=3.2.1') format('embedded-opentype'), font-url('fontawesome-webfont.woff?v=3.2.1') format('woff'), font-url('fontawesome-webfont.ttf?v=3.2.1') format('truetype'), font-url('fontawesome-webfont.svg#fontawesomeregular?v=3.2.1') format('svg');
+  src: font-url('fontawesome-webfont.eot');
+  src: font-url('fontawesome-webfont.eot?#iefix') format('embedded-opentype'), font-url('fontawesome-webfont.woff') format('woff'), font-url('fontawesome-webfont.ttf') format('truetype'), font-url('fontawesome-webfont.svg#fontawesomeregular') format('svg');
   font-weight: normal;
   font-style: normal;
 }