Added extension for 'none'.  Allows skipping the web server install.
Upgraded to build pack utils #3e5c19d.
Added 'none' extension to disable web server.  Modified php extension
to detect when none extension is being used and look for a php script to
run instead of the php-fpm.  PHP extension also installs cli, instead of
fpm', if 'none' extension is being used.  Added test for compile helpers used by php extension.
Refactored compile test.  Moved common code into base class and created second test class for stand alone app test.
Modified to only move files to htdocs folder if it is a web app.  Stand alone apps are left as-is.  Added tests to confirm.
Fixed test.  Had issue with recent refactoring and setup method.