Auto-select first autocompletion entry

Because this feature is not natively supported by Twitter Typeahead,
this is based on a existing PR.
See twitter/typeahead.js#1356

See gh-145

initializr/src/main/resources/static/js/start.js

@@ -141,7 +141,8 @@ $(function () {
     initializeSearchEngine(starters, $("#bootVersion").val());
     $('#autocomplete').typeahead(
         {
-            minLength: 2
+            minLength: 2,
+            autoSelect: true
         }, {
             name: 'starters',
             display: 'name',
@@ -200,4 +201,4 @@ $(function () {
             e.returnValue = false;
         }
     });
-});
+});