React-backbone: don't use the file with addons

We don't use these anymore

examples/react-backbone/.gitignore

@@ -12,7 +12,7 @@ node_modules/jquery/dist/*
 node_modules/react/*
 !node_modules/react/dist
 node_modules/react/dist/*
-!node_modules/react/dist/react-with-addons.js
+!node_modules/react/dist/react.js
 !node_modules/react/dist/JSXTransformer.js
 
 node_modules/classnames/*

examples/react-backbone/index.html

@@ -16,7 +16,7 @@
 		</footer>
 
 		<script src="node_modules/todomvc-common/base.js"></script>
-		<script src="node_modules/react/dist/react-with-addons.js"></script>
+		<script src="node_modules/react/dist/react.js"></script>
 		<script src="node_modules/react/dist/JSXTransformer.js"></script>
 		<script src="node_modules/classnames/index.js"></script>
 		<script src="node_modules/jquery/dist/jquery.js"></script>