Fix a file permissions and error logging problems with scontrol shrinking jobs

We don't have the correct info available now

configured out

    executed by the user to reset SLURM environment variables.

    accounting record is being written immediately before or after it changes
    size. This permits job accounting records to be written for a job at each
    size.
Make calls to jobcomp and accounting_storage plugins before and after a job
    changes size (with the job state being JOB_RESIZING).All plugins write a
    record for the job at each size with intermediate job states being
    JOB_RESIZING. More work is needed for correct accounting.
svn merge -r19782:19944 https://eris.llnl.gov/svn/s lurm/branches/slurm-2.2.resize

    disable_root_jobs, hidden and root_only fields with a single field called
    "flags" populated with the flags PART_FLAG_DEFAULT, PART_FLAG_NO_ROOT
    PART_FLAG_HIDDEN and/or PART_FLAG_ROOT_ONLY. This is a more flexible
    solution besides making for smaller data structures.

    commands to see the correct value instead of always "NO".

expand explanation of job state options

instead of location functions in sacct, squeue, and scancel

    (e.g. 8:00 or 08:00:00 or 8:00:00 or 08:00:00).

fix for better debugging when trying to start a new cluster in accounting that hasn't been added yet