This adds the start of the AIS event service code. The library code
is mostly complete. The aisexec part just has placeholders for now
and will be filled in later.

BKrev: 410944e7-oXL5OZSJvizPPH9dGS2GA


git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@141 fd59a12c-fef9-0310-b244-a6a79926bd2f