added CHANGELOGs for all the extensions

extensions/yii/bootstrap/CHANGELOG.md

+Yii Framework 2 bootstrap extension Change Log
+==============================================
+
+2.0.0 beta under development
+----------------------------
+
+- no changes in this release.
+
+2.0.0 alpha, December 1, 2013
+-----------------------------
+
+- Initial release.

extensions/yii/composer/CHANGELOG.md

+Yii Framework 2 composer extension Change Log
+=============================================
+
+2.0.0 beta under development
+----------------------------
+
+- Bug #1480: Fixed issue with creating extensions.php when php opcache is enabled (cebe)
+
+
+2.0.0 alpha, December 1, 2013
+-----------------------------
+
+- Initial release.

extensions/yii/debug/CHANGELOG.md

+Yii Framework 2 debug extension Change Log
+==========================================
+
+2.0.0 beta under development
+----------------------------
+
+- no changes in this release.
+
+2.0.0 alpha, December 1, 2013
+-----------------------------
+
+- Initial release.

extensions/yii/elasticsearch/CHANGELOG.md

+Yii Framework 2 elasticsearch extension Change Log
+==================================================
+
+2.0.0 beta under development
+----------------------------
+
+- Enh #1382: Added a debug toolbar panel for elasticsearch (cebe)
+
+2.0.0 alpha, December 1, 2013
+-----------------------------
+
+- Initial release.

extensions/yii/gii/CHANGELOG.md

+Yii Framework 2 gii extension Change Log
+========================================
+
+2.0.0 beta under development
+----------------------------
+
+- Bug #1405: fixed disambiguation of relation names generated by gii (qiangxue)
+
+2.0.0 alpha, December 1, 2013
+-----------------------------
+
+- Initial release.

extensions/yii/jui/CHANGELOG.md

+Yii Framework 2 jui extension Change Log
+========================================
+
+2.0.0 beta under development
+----------------------------
+
+- no changes in this release.
+
+2.0.0 alpha, December 1, 2013
+-----------------------------
+
+- Initial release.

extensions/yii/mongodb/CHANGELOG.md

+Yii Framework 2 mongodb extension Change Log
+============================================
+
+2.0.0 beta under development
+----------------------------
+
+- Initial release.

extensions/yii/redis/CHANGELOG.md

+Yii Framework 2 redis extension Change Log
+==========================================
+
+2.0.0 beta under development
+----------------------------
+
+- no changes in this release.
+
+2.0.0 alpha, December 1, 2013
+-----------------------------
+
+- Initial release.

extensions/yii/smarty/CHANGELOG.md

+Yii Framework 2 smarty extension Change Log
+===========================================
+
+2.0.0 beta under development
+----------------------------
+
+- no changes in this release.
+
+2.0.0 alpha, December 1, 2013
+-----------------------------
+
+- Initial release.

extensions/yii/sphinx/CHANGELOG.md

+Yii Framework 2 sphinx extension Change Log
+===========================================
+
+2.0.0 beta under development
+----------------------------
+
+- Enh #1398: Refactor ActiveRecord to use BaseActiveRecord class of the framework (klimov-paul)
+
+2.0.0 alpha, December 1, 2013
+-----------------------------
+
+- Initial release.

extensions/yii/swiftmailer/CHANGELOG.md

+Yii Framework 2 swiftmailer extension Change Log
+================================================
+
+2.0.0 beta under development
+----------------------------
+
+- no changes in this release.
+
+2.0.0 alpha, December 1, 2013
+-----------------------------
+
+- Initial release.

extensions/yii/twig/CHANGELOG.md

+Yii Framework 2 twig extension Change Log
+=========================================
+
+2.0.0 beta under development
+----------------------------
+
+- no changes in this release.
+
+2.0.0 alpha, December 1, 2013
+-----------------------------
+
+- Initial release.

framework/CHANGELOG.md

@@ -4,8 +4,27 @@ Yii Framework 2 Change Log
 2.0.0 beta under development
 ----------------------------
 
+- Bug #1446: Logging while logs are processed causes infinite loop (qiangxue)
+- Enh #1406: DB Schema support for Oracle Database (p0larbeer, qiangxue)
+- Enh #1437: Added ListView::viewParams (qiangxue)
+- New extension #1438: [MongoDB integration](https://github.com/yiisoft/yii2-mongodb) ActiveRecord and Query (klimov-paul)
 
 2.0.0 alpha, December 1, 2013
 ---------------------------
 
 - Initial release.
+- Official extensions released in this version:
+  - [Twitter bootstrap 3.0](https://github.com/yiisoft/yii2-bootstrap)
+  - [Jquery UI](https://github.com/yiisoft/yii2-jui)
+
+  - [Debug Toolbar](https://github.com/yiisoft/yii2-debug)
+  - [Gii code generator](https://github.com/yiisoft/yii2-gii)
+
+  - [Elasticsearch integration](https://github.com/yiisoft/yii2-elasticsearch): ActiveRecord and Query
+  - [Redis integration](https://github.com/yiisoft/yii2-redis): ActiveRecord, Cache and Session
+  - [Sphinx integration](https://github.com/yiisoft/yii2-redis): ActiveRecord and Query
+
+  - [Swiftmailer](https://github.com/yiisoft/yii2-swiftmailer)
+
+  - [Smarty View Renderer](https://github.com/yiisoft/yii2-smarty)
+  - [Twig View Renderer](https://github.com/yiisoft/yii2-twig)