Fix electron test race condition with protobuf loading

test/fixtures.js

@@ -2684,5 +2684,5 @@ Whisper.Fixtures = (function() {
     }
 
     return conversationCollection;
-})();
+});
 

test/fixtures_test.js

@@ -5,7 +5,7 @@ describe("Fixtures", function() {
     // NetworkStatusView checks this method every five seconds while showing
     window.getSocketStatus = function() { return WebSocket.OPEN; };
 
-    Whisper.Fixtures.saveAll().then(function() {
+    Whisper.Fixtures().saveAll().then(function() {
       done();
     });
   });

test/index.html

@@ -609,7 +609,7 @@
 
   <script type="text/javascript" src="../js/chromium.js" data-cover></script>
 
-  <script type='text/javascript' src='../js/views/backbone_wrapper_view.js'></script>
+  <script type='text/javascript' src='../js/views/react_wrapper_view.js'></script>
   <script type='text/javascript' src='../js/views/whisper_view.js' data-cover></script>
   <script type='text/javascript' src='../js/views/debug_log_view.js' data-cover></script>
   <script type='text/javascript' src='../js/views/toast_view.js' data-cover></script>