From ccscript 4.0.1 to 4.0.2
- added "expr" for simple math expressions.
- simplified internal list processing.
- added new $offset/x:var expansion for list processing.  If "x" is not pure
  numeric, then is symbol indexed offset.
- allow assignment expression syntax with set, for := and +=, for consistency
  with "expr" command.

From ccscript 4.0.0 to 4.0.1
- apply command added to allow script "templating".
- fix for bug when accessing event that does not exist.
- use of local ^exit to override global @exit

Initial Release 4.0.0

