for mutex lock/unlock with error messages.

slurmctld can set a node down per bad slurmd return code in
job completion RPC.
slurmd has framework for returning both slurmd and and application
return codes on batch job completion.
Srun modified to send return codes on job completion

slurmctld can set a node down per bad slurmd return code in
job completion RPC.
slurmd has framework for returning both slurmd and and application
return codes on batch job completion.

slurmctld can set a node down per bad slurmd return code in
job completion RPC.

   logfile == NULL

   This will allow slurmd to run as non-root process for testing.

 o mgr.c : deallocate job if preparation fails

Initialize return code for batch job initiation.

spooling file.

   along with other general bugfixes and cleanup.

 o cbuf.[ch] list.[ch] : begin using Chris' list and cbuf routines
   from the LSD-Tools project.

 o srun/srun.c : *Always* wait for I/O to complete. This still needs work.

 o srun/launch.c : code cleanup

from conman.