Issue 218 - extra note

[Alex Yiu <alex.yiu@oracle.com>]

Hi all,

I think Issue 218 is a good clarification to add to our spec text.

Given the new resolution of messageExchange for Issue 123, we may need 
to explicitly include or exclude messageExchange in proposal text.

On the other hand, "properties" does not live by itself and it exists 
only when coupling with a variable. Hence, we do not need explicit 
discussion for "properties" in the context of this issue.


Thanks!


Regards,
Alex Yiu