Add support for FastCGI with an eye to making PHP significantly faster.  In
the webctl.ini file, add something like the following:

[*.php]
FastCGI=localhost:9000

To pass all PHP requests under that directory through to a PHP fastCGI server.
You can start the PHP FastCGI server with a command something like this:
php-cgi -q -b localhost:9000

This change has also refactored normal CGI support, especially the Win32
support.  Since this patch is currently untested, it's best to assume that
it breaks both *nix and Win32 CGI support and doesn't work for FastCGI either
at this point.