last job id.

Currently it would just silently go on it's way

The fake munge signature was not null terminated so unallocated
memory would be referenced.
Fix for bug 289

add code to handle profiling of tasks

are called.

Call the correct plugin fini function.

Conflicts:
	config.h.in

Without this change, when the slurmctld daemon is reconfigured and
jobs are in completing state, then all nodes allocated to the job
are resent TERMINATE_JOB RPCs. After this change, only nodes which
have not processed the TERMINATE_JOB RPC are sent another one.