Big cleanup of executive to pass connection info by reference instead
of having connection info as an array seperate from the poll interface.
This makes the code alot cleaner and easier to read, plus removes
duplicated code in the connection array management.

BKrev: 40ec72dd7wKGeQDubAA6lmUMc7JjOQ


git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@74 fd59a12c-fef9-0310-b244-a6a79926bd2f