bug 1679

Do not log invalid layout update calls as errors in slurmctld, that's
  something for the user to address.
Make sure that data structure pointer are not NULL before attempting to
  free fields within them.
Initialize memory for a data structure taken from the stack.

This replaces the logic that reads until we run out of buffer
  space and setting the record count from that.
Also add an unlock if the layout dump failed to prevent a slurmctld
  deadlock.

Changes some variable names "norelation" to "no_relation"
Replace some blocks of spaces with tabs
Add definition of layouts "free" call to slurm.h.in
Add "layout" information to scontrol help message
Fix typo in error message
Translate a french error message to english "valide" to "valid"

Conflicts:
	NEWS

Conflicts:
	META

processing if you hang onto it longer that SchedulerParameters:
max_sched_time.

slurmctld.

through.

This bug was introduced yesterday in commit
6cb722dc

put the packed buffer on the list.

If the prolog container creation call (PrologFlags=contain) was
in progress when a job termination RPC arrived at the slurmd,
the slurmstepd and sleep processes could be orphaned until the
slurmd restarted.

The test program seems to have been using the wrong time functions
and failing. Including time.h fixed the problem.

Looks like this should of happened in 3d4ff78e