from the step context, and the assiciated allocation lookup rpc.

Creating a step context now requires only a single RPC to the controller.

statically linked.

g_slurm_auth_get_uid(). The original code was resulting in the
slaunch command having two different symbols g_context for the 
module slurm_auth.c. Some functions would use one symbol and 
other functions would use the other symbol resulting in extreme 
badness (zero pointers and seg faults).

altered the resource allocation and job_step_create_response structures.  Also altered the step_layout structure

Remove debugging message.

poe may have problems with the spawn_task changes.

removed task dist from srun put into slurmctld.  need to remove the addresses from job allocation since that isn't needed anymore.  need to fix some issues with the way sbcast does things now which should be easy.  The switch plugins can change also since we have the tasks laid out already now before we set up the switch.  Some more clean up also will be nice in srun.

"resp_port" and "io_port".  Now they just list the available listening
ports in the client (srun/slaunch), instead of listing a port per node
(which contains many duplicate ports).  The slurmd picks a port to use
based on number of available ports modulo its own rank in the job step.

- SlurmdPidFile, SlurmdLogFile, and SlurmdSpoolDir may each contain a
  "%h" and/or a "%n", which will be replaced by the hostname or NodeName,
  respectively.
- Add new xstring.c xstrsubstitute() function.
- launch_tasks_response_msg_t structure now contains a task_ids array
- Remove SLURM_DIST_UNKNOWN from enum task_dist_states
- job_desc_msg_t now lists a seperate addresses for the 
  RESPONSE_RESOURCE_ALLOCATION message.
- Expand the job step context concept used previously for task "spawn"
  for poe.  The step context is now also used for nomal step launch.
  New SLURM API function slurm_step_launch() and associated support
  functions.
- Fix spaghetti header #includes relating to global_srun.[ch]
- Fix slurmctld segfault when slaunch --relative is used

* Fix for slurmctld behaviour when environment is NULL on batch script launch
* Move client (srun) IO code into the API in preparation for adding
  an API call for launching a normal parallel job step.
* Rename SLURM_CRED_SIGLEN back to SLURM_IO_KEY_SIZE, but put it in a better
  header.

Fix return code handling in the src/api/signal.c code.

UCRL-CODE-2002-040 to UCRL-CODE-217948. No changes 
in any logic.

licensing. All other SLURM components are still distributed under
the GPL license.

Plus some minor code clean-up with no changes to logic.

   most of this functionality was provided by slurm_protocol_api.c
   (e.g slurm_send_recv_*_msg())

All references to header files changed to new pathname.

as needed.

moved from common into api directory.

General API code clean-up.

to cancel a job, issue the job_step_cancel RPC with a step_id
of NO_VAL.

changed function calls to match function prototype, didn't throw compile errors because they were inlined