- changed defs of HAVE_LIBELAN3 to HAVE_ELAN

   Elan3 and Elan4. Also allow old Elan3 module to work exactly
   the same as before.

   into account that (cap->HighNode - cap->LowNode +1) may not equal nnodes.

   The bits in the bitmap have a different meaning when the capability
   type is cyclic.

buffer and corrupted memory.

Was overwritting data off of buffer passed as argument.

These jobs are reported by slurmd on node registration. They are logged
but otherwise ignored by slurmctld. Several changes to slurmd logging
messaged to report job id and step id using %u format rather than %d
format (which shows no-allocate job id values as negative numbers).

   function.

type debug.

descriptors. This was needed in several grouped functions (e.g.
slurm_send_recv_rc_msg and slurm_send_only_node_msg, which combine
open, send, receive, and close functions for simplicity).

   may result in multiple executions of system epilog for a single job
   (gnats:267)

of socket communications. Previously was sometimes overwriting legitimate
SLURM error code with fcntl error code of EINTR.

occur naturally if a srun, scontrol, scancel, sinfo, or squeue command is
killed by the user with a communication to slurmctld in progress. This
seems to occur fairly regularly as part of batch job termination.

send/receive, function (poll, timeout, send, recv, etc), and the error message
are all reported.

logging the event and returning SLURM_SUCCESS.

hand if race condition starting all daemons).

  - Enhanced xsignal.[ch] to more easily block and unblock sets of signals
    [ added: xsignal_unblock xsignal_sigset_create, changed: xsignal_unblock ]
  - Take advantage of above changes in srun and slurmd code
  - Only unblock signals that were specifically blocked in slurmd
    (instead of *all* signals) when exec'ing user tasks.