Add error test on close of pid file in slurmd.

 o changed to %configure from straight configure

   Add new "startclean" option to start with -c options

   opened after slurmctld setuid()'s to a lower privileged uid.

Make output formatting match config file (UNLIMITED instead of INFINITE
or huge number). Only print job end_time if meaningful.

   YYYYMMDDHHMM style for CVS checkouts.
 o add logic to Make-rpm.mk to generate date strings for release when
   building from HEAD

vs. UNLIMITED specification)

 o src/srun/ : srun code cleanup.
   Do not set stdin nonblocking as this has a side-effect of setting stdout
   and stderr nonblocking too.
 o src/slurmd : code cleanup. Terminate if read of public key fails.
 o src/common/credential/signature_utils* : code cleanup

Initialize/free/set alloc_sid and alloc_node in API functions.
Pack/unpack/free new elements in job descriptor RPCs.
Load/dump/pack new elements into job table records.
Remove defunct BATCH_LAUNCH_RESPONSE message.

Initialize/free/set alloc_sid and alloc_node in API functions.
Pack/unpack/free new elements in job descriptor RPCs.
Load/dump/pack new elements into job table records.

Initialize/free/set alloc_sid and alloc_node in API functions.
Pack/unpack/free new elements in job descriptor RPCs.

Initialize/free/set alloc_sid and alloc_node in API functions.

 o srun/ : place temporary fix for stdout nonblocking I/O problem

move logic for better resolution and proper handling on UNKNOWN node
states to set them down as needed.

MIN_CHECKIN_TIME (3 seconds now).

 o srun : fix problem with loss of output from stdout stream.
          When stdio buffering is on, fprintf/fputs do not return errors
          when the buffers are apparently overflown (?), setting unbuffered
          IO seems to fix the problem.
 o slurmd/io.c : some slurmd io cleanup

   revoked after second use.
 o common/daemonize.c : do not report inability to open pidfile as an
   error (since it invariably is not)
 o slurmd/ : more initialization cleanup.