Previously slurmctld was not filtering out nodes failing to satisfy the
job's mincpus, mem, or tmp constraints.

Add step_id filtering as needed if a user requests info about a step_id
of zero (e.g. 123.0, it used to report all steps for the specified job_id).

   slurm_send_recv_node_msg(), slurm_send_recv_rc_msg(), etc.
 o Fixed fd leak in agent.c using slurm_send_recv_rc_msg() w/ timeout.

   allocation of a job step.

configuration information downloaded.

html/slurm_overview.html.

job_id, but the full step_id.

   such as MPIR_debug_state.

Truncate long job names as needed. Do not return an error.

 o Fix -Wall warnings

 o Move checks for launch or exit timeouts from IO thread into msg.c
 o Added new "undocumented" options --max-launch-time and --max-exit-timeout
   for use in testing.
 o Do not wantonly terminate IO thread when job moves into state
   TERMINATED, only exit on FORCETERM. (this allows collection of error
   messages from slurmds)
 o Small amount of code cleanup in io.c, signals.c

   (Wait for IO thread even if some IO ops fail)
 o Consilidate redundant slurm_protocol code in mgr.c

 o Temporarily define "dprintf" to avoid using glibc's version (which
   conflicts with version in libmunge) Need to remove this later.

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

   slurm_protocol_socket_implementation.c
 o Added new functions slurm_send_recv*rc_msg() for handing common
   mode of sending a message and receiving only a "return code" message.
 o Overhauled existing code and performed general cleanup.

   maximum.

of memory leaks (non destroyed list iterators).

priority. Job priority==0 can be used to hold a job (prevent resource
allocation).