totemsrp.h, totemsrp.c:
Allow totemsrp to remove the reference information for a token callback.
sync.c:
Fix bug in sync which caused segfault.

BKrev: 42371b753plEvd2J96qRpg6mRxki1Q


git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@524 fd59a12c-fef9-0310-b244-a6a79926bd2f