Major improvements to quality in the GMI. Previously with 12 processors
and running ckptstress from two nodes, one node would fail to make
forward progress. Sometimes the nodes would assert or crash. All the
fragmentation code has been rewritten to be more stable and of better
design (at the cost of a little more memory).

BKrev: 40f5c9b6KnXRw3_UyUgLV-cIvI7YpA


git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@113 fd59a12c-fef9-0310-b244-a6a79926bd2f