Adjust APP_NAME to be inside utils

APP_NAME should be visible from any component and module, so putting it
in utils makes the most sense.

index.html

@@ -13,7 +13,6 @@
     <div id="main">
 	</div>
     <script>
-        var APP_NAME = 'TechNote'
         window.$ = window.jQuery = require('./app/static/jquery-1.12.0.min.js');
         $(document).ready(function(){
         document.addEventListener("keydown", function (e) {