Script to auto-generate and view the Mahout website on a local machine

Attached with this ticket is a script that creates a simple setup for editing Mahout Website on a local machine.

It is useful in the sense that, we can edit the source and the changes are automatically reflected in the generated site. All we need to do is refresh the browser. No further steps required.

So now one can review the website changes ( the complete website ), on a developer's machine.