Add support in slurmctld for SlurmctldDebug on startup and reconfig RPC.

and cpus_per_task option.

Slurmctld add node list to job step (leave bitmap too, faster)	Jette
Slurmctld fix node state when job keeps running and node fails	Jette
Slurmctld job requests with min-max resource requirement pair	Jette
Slurmctld job requests with excluded node list (--exclude)	Jette

(it can vary if node range is specified "-N2-8").

This permits node count to rise as needed for processor count.

ease of use in slurmctld

   (stderr could be disconnected but writable would return true)

   response message

TotalView (it was intercepting the SIGTERM and reporting srun's tasks
in addition to the user's tasks - very confusing).

Based upon kernel mod that permits SIGSTOP to child and ptrace(DETACH).

   (to match documentation)
 o Use access(2) to determine if user has local access to file
   (instead of brute force examination of stat buffer)
 o issue warning if local command cannot be found with --batch

Also add exclude=node_list to allocate RPCs.
slurmctld accepts new RPC arguments, but does nothing with them (yet).
Besides processing new arguments, srun: will process node lists from
file rather than in-line list, sets SLURM_NNODES environment variable
based upon actual count of allocated nodes, and constraints info
in debug mode reported in full (was only reporting last constraint
found).

Also add exclude=node_list to allocate RPCs.
slurmctld accepts new RPC arguments, but does nothing with them (yet).

Also add exclude=node_list to allocate RPCs.

   groups when a credential has been revoked.

job allocation.

job time limit. Defined pack/unpack/free functions for RPC.
Slurmctld modified to broadcast REQUEST_UPDATE_JOB_TIME RPCs.
Slurmd modified to accept RPC and update job step records in shared memory.

job time limit. Defined pack/unpack/free functions for RPC.
Slurmctld modified to broadcast REQUEST_UPDATE_JOB_TIME RPCs.

job time limit. Defined pack/unpack/free functions for RPC.

   srun/signals.c
 o added experimental --join option which allows attached srun
   to send signals and stdin to job. (stdin not working yet)
 o other srun and slurmd code cleanup

unexpected job is reported by slurmd and slurmctld sends the job a SIGKILL.

   on POLLHUP but no read method.
 o common/log.c : add pthread_atfork() calls to ensure sanity of log
   data structure after a fork() from a threaded program.
 o slurmd/io.c : set _obj_close as close handler for all objects
 o slurmd/shm.c : fix bug that caused lockfile to always go into /tmp
 o slurmd/mgr.c : reset log prefix to denote job id when logging to a file
 o srun/srun.c : do not call fatal() after having allocated nodes,
   use die() instead which prints an error then does goto cleanup;
 o srun/*.c : remove _debug vestigal var