read_proc.c given general clean-up

 o fix _search_path() to handle absolute and relative pathnames

New API defined slurm_pid2jobid. Minor format clean-up on other man pages.

New RPC defined to map local pid into slurm job id.
General clean-up of scontrol, also new command to map pid to job_id.
Slurmd *stub only* to map pid to job id.

New RPC defined to map local pid into slurm job id.
General clean-up of scontrol, also new command to map pid to job_id.

New RPC defined to map local pid into slurm job id.

Needed for totalview support of reattach.

 o slurmd tries to kill any old slurmd's on startup
 o create_pidfile() locks pid file and keeps it open, so that
   we can test pidfile for lock to definitively know whether old
   slurmd is still running.

   affect number of tasks in batch job steps.

config file values.

avoid over-write with reconfiguration RPC.

free_bitmap

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).