Intro Page Concept

There has been some confusion as to how to install v0.7-dev so I created a small introductory page to (a) add a bit of security and (b) to help try to grow the community a bit, while still informing people that their database needs to be manually created before running the installer.

The __robots.txt__ file addition is up for debate. I was just trying to make absolutely sure that the gizzards of this beast were protected. Include it or not.