Wishlist requests

Three requests:

[ ] Ability to specify the user:group that sa-exim writes files as (for 
the timeout/accept/error archiving) -- and not just as the exim user 
(exim allows this option in transports)

[ ] Ability to specify the permissions that sa-exim writes files as 
(for the timeout/accept/error archiving) -- and not just as 600 (exim 
allows this option in transports)

[ ] Numbering scheme to be in sync with exim somehow
     Yeah, i know this is crazy.  But sa-exim 4.1 will be out when exim 
4.43 is out.  would it be too crazy to use a scheme like exiscan acl 
uses ( so it would be sa-exim4.43-4.1 or sa-exim4.43.1 ).  recently 
upgrading exim, i thought sa-exim wouldn't work anymore as the numbers 
were way lower.