Favicon!

index.html

@@ -9,6 +9,9 @@
   <script src="res/data/towers.js" type="text/javascript"></script>
   <script src="res/js/util.js" type="text/javascript"></script>
   <script src="res/js/viewer.js" type="text/javascript"></script>
+
+  <link rel="icon" type="image/png" href="res/images/coreIcon.png"/>
+
   <link rel="stylesheet/less" type="text/css" href="res/style.less">
   <script src="res/js/less-1.2.1.min.js" type="text/javascript"></script>
  </head>