Live Chat update

Still in development.

	new file:   include/css/chat.css
	new file:   include/css/install.css
	new file:   include/css/login.css
	new file:   install.php
	modified:   include/css/style.css
	modified:   include/php/classes/database.class.php
	deleted:    include/php/config.php
	modified:   index.php