once more, overhaul the icons and use the css regex selector on our icons

less/sprites.less

@@ -14,7 +14,7 @@
 // For the white version of the  icons, just add the .i-white class:
 // <i class="i i-inbox i-white"></i>
 
-.i {
+[class*="i-"] {
   display: inline-block;
   width: 14px;
   height: 14px;