Makefile:
Add checkpoint reader and writer to test synchronization
ckpt-wr.c, ckpt-rd.c:
new file

BKrev: 42363081enPpMuQpdvw2e1uqFAqD0A


git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@521 fd59a12c-fef9-0310-b244-a6a79926bd2f