Updated sys.php
Moved constants from sys.php to here.
Added empty $vga_facebook variable.
Removed salt strings to priv/config.domain.php.
Added gen_uuid function.
Renames example app 2 for clarity.
Merge remote-tracking branch 'upstream/master'
Made priv directory location a constant.
Added 2 functions.
Fix MySQL bug when doing a select on a null userid (when not logged in).
Properly aligned Facebook header login button.
Merge remote-tracking branch 'upstream/master'
Will look in the current directory, then one above site root, for priv.php file.
If not found will default to files located in the default priv directory.
Merge commit '503b8528541d5d9cf9bec41568d69aea89352d20'