Xelog is a project to help developers store, show and distribute project's history of changes. Its main purpose is to simplify change log management by eliminating mundane tasks and providing a lot of different views to read and update it.
It is available free of charged and comes with a flexible BSD /License.
Edit Download (0.1)
http://www.emeraldhand.com/downloads/Xelog.0.1.zip - Current release. Includes all the files you need to install Xelog on your server.
Edit Examples
http://www.emeraldhand.com/xelog/xelog.xml is change-log for the project.
http://www.emeraldhand.com/xelog/examples/jsforms.xml is a more complex example.
Edit Documentation