Merging installer updates for V-Shell v1

Hey there!

I've merged in my commit history with yours. There's only three real changes going on here:

- Updated install.php code
- Added a config.php file
- Moved the web files into their own www/ directory

The last item causes the git diff log to look huge when really it's the same files in different locations.

I'll send a second pull request with the 2.X branch changes once you've had enough time to review this code and accept the pull request.

Let me know if you have any questions as you review the code, happy to explain anything!

Cheers,

Chris