README.devmap:
Add flow control documentation to devmap.
Add event service to devmap.

BKrev: 412922454HMPjB41f5bgMaos4soalg


git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@192 fd59a12c-fef9-0310-b244-a6a79926bd2f