Added Changelog for 1.1

changelog.md

 # Changelog
 
+## 1.1 - TBD
+
+- We now have 18 stable apps and 35 in labs. New since 1.0.1:
+    - Dart
+    - TypeScript + Backbone.js
+    - TypeScript + AngularJS
+    - Serenade.js
+    - CanJS + RequireJS
+    - Chaplin + Brunch
+    - Thorax + Lumbar
+    - CanJS replaced the JavaScriptMVC app
+- Many app frameworks and libraries have been upgraded to the latest version
+- XSS issues in several apps have been resolved
+- The homepage got reorganized with new categories
+- Various consistency fixes across all apps
 
 ## 1.0.1 - 2012-10-09