Modify slurmctld message retry logic to support Cray cold-standby SDB.

Add support for "days-" (no hours)
Change local functions to have "_" prefix in their name

from "Failed to allocate resources" to
"Job submit/allocate failed"

From "Missing time limit" to
"Time limit specification required, but not provided"

salloc command not supported

segfault.

Correction to commit 8a3e4f00

Conflicts:
	META
	NEWS
	src/common/parse_time.c
	src/plugins/gres/mic/gres_mic.c
	src/slurmd/slurmd/slurmd.c
	testsuite/expect/test1.84

This reverts commit 18b59d5d
to avoid breaking anything that parses sbatch/salloc/srun output
bug 438

Error message changed from
Missing time limit
to Job submission rejected due to missing time limit
bug 438

Make man page match the code (SLURM_STEP_ID is meant to replace
SLURM_STEPID).

is not parsed correctly.

gres/gpu and gres/mic - Do not treat the existence of an empty gres.conf
file as a fatal error. There may be no gres devices on that node so we
do not require the file. Assume gres counts of zero if no file.

bug 436

This has been seen only in slurmstepd with --enable-memory-leak-debug
enabled at slurmstepd shutdown time on the smd cluster with
Linux 3.8.0-23-generic #34-Ubuntu SMP Wed May 29 20:22:58 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

bug 436

just print the job ID rather than "Submitted batch job #"

Conflicts:
	src/common/env.c

job CPU count not loaded correctly
Partition time limit format wrong (minutes rather than hhmmss format).