update change log

Author: magemello

CHANGELOG.md

@@ -6,8 +6,8 @@ Alfresco JS API
 
 _This project provides a JavaScript client API into the v1 Alfresco REST API_
 
-<a name="0.3.9"></a>
-# [0.3.9](https://github.com/Alfresco/alfresco-js-api/releases/tag/0.3.9) (xx-xx-2016)
+<a name="0.4.0"></a>
+# [0.4.0](https://github.com/Alfresco/alfresco-js-api/releases/tag/0.4.0) (11-11-2016)
 
 ## Fix
 - [Fix Webpack import #93](https://github.com/Alfresco/alfresco-js-api/issues/93)