Long term 'asVar' will be replaced with __toString function

Make Clientession extends EndUser

Allow variable replacer to call __call functions

is_callable will report ANY function as available

Use a PHP setup which uses the built-in PHP tokenizer to parse and traverse
PHP scripts to determine (possible) access to uninitialized variables

 e.g %{staff.*} can be overwritten by a string (placeholder) as assign('staff', 'SYSTEM').

Improve variable's preg_match_all (Thanks to Jared)

Allow empty variable - or whatever objects return