Upgraded build pack utils.
Refactored test.  Fixed to work after adding logging.
Upgraded build pack utils.
Removed debug console.  Needs more work before it's enabled by default.
Modified php.ini so that it doesn't contain extensions by default.  They are added by the compile time rewrite process.  Extensions can now be listed in options.json.  Modified options.json to have some default extensions.  Code changes include a method to convert list of extensions to php.ini format for extensions and zend extensions.  Updated tests to be compatible with this change.