README.devmap:
Document new changes to exec handler function prototype
and recommend using the source_addr for deferring requests
instead of recording the ip address in the message itself.
main.c, handlers.h, clm.c, ckpt.c, amf.c:
Add source_addr to exec message handler for event service.

BKrev: 41082a5cY6cLQK7NG_rxZrkb7lERfw


git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@133 fd59a12c-fef9-0310-b244-a6a79926bd2f