fix some burst buffer job preemption bugs
allocate burst buffer at job submit time if possible
trigger scheduling cycle when stage in completes

logged buffer state rather than job id in 3 message
reported bad stage-out results for purged buffer

Add more error checking to burst_buffer.conf contents
Add function to provide estimated earliest start time for pending job

Improve logic for failure recover on slurmctld restart
Add burst buffer use start time for use with revoking previously allocated buffers
Revoke burst buffers already allocated to pending jobs when needed
  for a higher priority job

add timer logging
add on demand job state load
Streamline logging to make less verbose
Fix bug related to tracking space allocated to staged out buffers
Sort pending jobs in order of expected start time

impact functionality.

Conflicts:
	RELEASE_NOTES

Copy (i.e. duplicate) information about floating reservations
in the highlights section

Added new job state of STOPPED indicating processes have been stopped with a
SIGSTOP (using scancel or sview), but retain its allocated CPUs. Job state
returns to RUNNING when SIGCONT is sent (also using scancel or sview).
bug 1263

No change to logic

The xtree functions are only used in the layouts framework, which
isn't currently in use, so I am just commenting out the failing
portion of the test for now. It was failing with the message:
xtree-test.c:517:F:Core:test_xtree_walk:0: unexpected stop (data, which, level, couple index) expected: 1: 1: 0: 0, got 1: 16: 0

Add support for PrioBoostUse and PrioBoostAlloc configuration parameters

Once reached, job is placed in held state with reason description

Add global burst buffer used info
Add burst buffer state change time record
Handle purging of persistent burst buffers
Add support for StageInTimeout and StageOutTimeout
Enforce global burst buffer size limit

Conflicts:
	RELEASE_NOTES

Add a burst buffer plugin pthread to handle timeouts, etc.

Prevent backfill scheduler tight loop if gettimeofday()
returns an error

Conflicts:
	META
	NEWS