Fix SelectTypeParameters=CR_PACK_NODES for srun making both job and step
resource allocation. Previously a stand-long srun command would distribute
tasks evenly across the nodes.

see bug 1047

Conflicts:
	src/slurmctld/job_scheduler.c

Start a job in the highest priority partition possible, even if it requires
preempting other jobs and delaying initiation, rather than using a lower
priority partition. Previous logic would preempt lower priority jobs, but
then might start the job in a lower priority partition and not use the resources
released by the preempted jobs.
bug 1032

No change to logic

Improve the precision of several pthread_cond_timedwait() function
calls to be precise to the millisecond rather than rounding to the
neareast second. Applies to most scheduling functions.

Add retry logic related to cpu frequency manament locking.
Some general code improvements also

This should address various race conditions in setting CPU frequency,
especially as relates to gang scheduling (e.g. cancelling or terminating
jobs while near changing the running job).

of the pseudo terminal to the user.

Also don't try to map unset cpu-freq to lowest numeric value (was
looking for NO_VAL rather than zero)

even without it.

appears to be needed for make check

Flesh out logic to aggregate exit state for a job array

together.

line buffered.

Job array dependency based upon state is now dependent upon the state of
the array as a whole (e.g. afterok requires ALL tasks to complete
sucessfully, afternotok is true if ANY tasks does not complete successfully,
and after requires all tasks to at least be started).

Add functions to test the state of a job array, for example
test_job_array_pending() returns true if ANY task of a job array
is pending and test_job_array_completed() returns true if ALL
tasks of a job array are completed.

spaces.

Count is reset running array tasks on reconfig

Recommend use of job arrays and multiple job steps per job.