[exim] DSN for Exim 4.62

The DSN patch now supports Exim 4.62.



ChangeLog
---------

eximdsn-1.2
14-Apr-2006 : Changed subject to "Delivery Status Notification"

17-May-2006 : debug_printf in spool-in.c were not wrapped with #ifndef
COMPILE_UTILITY
              thanks to Andrey J. Melnikoff for this information

eximdsn-1.1
15-Mar-2006 : Added support for local delivery DSN's
              Fixed issues with Solaris build (NULLS)

-Andy-