updated change log.

laravel/documentation/changes.md

@@ -30,6 +30,7 @@
 - [Added `save` method to has\_many Eloquent relationship](/docs/database/eloquent#has-many-save).
 - [Added `unless` structure to Blade template engine](/docs/views/templating#blade-unless).
 - [Added Blade comments](/docs/views/templating#blade-comments).
+- [Added simpler environment management](/docs/install#environments).
 - Added support for DateTime database query bindings.
 - Migrated to the Symfony HttpFoundation component for core request / response handling.
 - Fixed the passing of strings into the `Input::except` method.