Upgrade to React 0.4, fully compilant

- Compilant with coding style.
- Removed app.css. No need anymore since we freed id.
- Render info footer separately (specs).
- Tweak footer to make it pass jshint when compiled:
  - {''} after 'left'.
  - {''} around `clear completed`.
  - Breaking style for footer clearButton, `>` on the same line.
- Rename cx and put it in Utils.
- Routing with director.
- Change some keyUp to keyDown (specs).
- Strip form tags (specs? Referred to the stable ones).
- Trim after editing item.
- Manually autofocus (attribute not supported in ie9).
- Input focus now triggers as a callback (because of batch rendering).
- Controlled input.
- Gutter at 80.
- Class `completed` trim whitespace.
- Remove bind.

labs/architecture-examples/react/bower.json

@@ -3,6 +3,6 @@
   "version": "0.0.0",
   "dependencies": {
     "todomvc-common": "~0.1.7",
-    "react": "~0.3.2"
+    "react": "~0.4.0"
   }
 }

labs/architecture-examples/react/bower_components/react/.bower.json

@@ -0,0 +1,14 @@
+{
+  "name": "react",
+  "version": "0.4.0",
+  "main": "react.js",
+  "homepage": "https://github.com/facebook/react-bower",
+  "_release": "0.4.0",
+  "_resolution": {
+    "type": "version",
+    "tag": "v0.4.0",
+    "commit": "54334ad626d26dff4c214d308cefd30ad80fb8e9"
+  },
+  "_source": "git://github.com/facebook/react-bower.git",
+  "_target": "~0.4.0"
+}