Allignment was bad and there was redundant test logic (duplicate errors)

Bug 1327

the code accordingly.

Add purge of client_nids file
Add timers to bbs_job_process execution
Add some stage-in logic

Add logic to process interactive job BB request
Rename some burst buffer functions for better clarity
Add purge of burst_buffer system files
Get bbs_job_process operating
Add status code to the bb_run_script function

doesn't request a number of tasks.

plugin code.

Use json-c

This reverts commit 0381cf8e.

Fix job array hash table bug, could result in slurmctld infinite loop or
invalid memory reference.
bug 1309

Added more logic related to BBS command execution

This docuemntation change reflects code changes in commit
54e53857

Corrections to commit a5d0ab58

as it may cause core dumo in squeue.

This reverts commit 322c783c.

Add new burst buffer error: ESLURM_INVALID_BURST_BUFFER_REQUEST
Add new burst buffer plugin function bb_p_job_validate(), called
  after the job_id is set and write the code to set up Cray environment
  files for the job.
Add stage-in logic
Add logic to claim burst buffer
Add cray logic to claim buffer when job resources selected
Add logic for stage-out and teardown

Conflicts:
	src/slurmctld/job_mgr.c

to run command to get bb output.

If a master job array record is complete, then consider all pending
tasks as also complete. This problem happens when a master job array
record is pending (has pending tasks) and is cancelled. The result
previously was a job record not visible to squeue/scontrol, but occupying
memory.
The same type of problem happened with respect to a dependency on a job
array which was cancelled.

This change will better reveal any vestigial job records not being purged

Conflicts:
	META
	NEWS