Add final support for duration timers on checkpoints and expiration timers.
This cleans up memory leaks that could occur because checkpoints are expected to
cleanup with the expiration and duration timers.

testckpt.c:
Test expiration timer.
ckptbenchth.c:
Reduce number of threads so runs with valgrind operate faster.
ckpt.c:
Clean up duration and expiration functions.
ais_types.h:
Add sectione xpiration and get checkpoint durations working properly.
ais_msg.h:
Add section expiration and get checkpoint durations working properly.
ckpt.h, ckpt.c:
Finalize expiration of sections and checkpoints.
print.c:
Allow getSaNameT to be compiled in for application reporting.
evs.c:
Fix build error with -DDEBUG set.

BKrev: 41534a3dcm_0gpB32jNbsek3bGYwXQ


git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@283 fd59a12c-fef9-0310-b244-a6a79926bd2f