* closes#14
* updated readme with details of the response
* includes `url` and `code` in the response with the final URL after following redirects and the HTTP status code returned
* adds .htaccess files for apache
* adds installation instructions and nginx example
* prevent source folders from being viewed with .htaccess
* adds `index.php` in root folder in case you deploy this whole thing to a subfolder
* updates to work when installed in a subfolder